Nano-10 User Manual

Nano-10 User Manual

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1. USER’S MANUAL Nano-10 Ladder+BASIC Super PLC Revision 4.1

24. Chapter 1 Installation Guide 1-12

26. Chapter 1 Installation Guide 1-14 1. Divide By Zero 2. FOR-NEXT loop with STEP = 0! 3. Call Stack Overflow! Circular CALL suspected! 4. Illegal Opcode - Please inform manufacturer! 5. System Variable Index out-of -range: This is normally caused by using an unavailable subscript. E.g. DM[0], INPUT[-1], DM[5000], etc. Check the subscript value, especially if it contains a variable (e.g. DM[X], if X=0 this will lead to a runtime error). All run-time errors should be identified and corrected before you proceed any further.

102. Chapter 8 Frequency / Speed Measurement Chapter 8 Frequency / Speed Measurement

36. Chapter 2 Ethernet Port 2-9 If you are on a corporate network, then you will need to consult the IT administrator to get the PLC connected to the network.

122. Chapter 12 Real Time Clock Chapter 12 Real Time Clock

144. Chapter 14 Serial Communications 14-12 DM[100] = ADC(2) Now you can program the bar graph on the SCADA scr een to be connected to DM[100] if you use the OMRON protocol. For the MODBUS protocol, t he object should be connected to the address: 4-1100

156. Chapter 15 Host Link Communication Protocol 15-10 Since an RS485 network links many PLCs together elec trically and in a daisy chain fashion, problems occurring along the RS485 network sometimes affect t he operation of the entire network. For example, a broken wire at the terminal of one node may mean t hat all the PLCs connected after this node become inaccessible by the master. If the RS485 interface of one of the PLCs has short-circuited because of component failure, then the entire network goes down with it too. This is because no other node is able to assert proper signals on the two wires that are also common to the shorted device. Hence, when trouble-shooting a faulty RS485 network, it may be necessary to isolate all the PLCs from the network. Thereafter, reconnect one PLC at a time to the network, starting from the node nearest to the host computer. Use the TRiLOGI program to che ck communication with each PLC until the faulty unit has been identified.

12. Chapter 1 Installation Guide Chapter 1 Installation Guide for Nano-10 PLC

105. Chapter 8 Frequency / Speed Measurement 8-3 8.3 Frequency Measurement on High Speed Counter Inputs For applications that require frequency m easurement and pulse counting of the same signal, you only need to feed the pulse input into any pair of the i nputs #1 & 2, or inputs #3 & 4, or inputs #5 & 6 and define it as a High Speed Counter (see Chapter 7). Th is is because an input pin that has been defined as an HSC will automatically be enabled for pulse measurement. In other words, if you need to use the HSC and t he Pulse Measurement on the same channel, then you don’t execute both the HSCDEF and PMON, you onl y need to execute the HSCDEF. The HSCDEF function will automatically start the Pulse Measurement hardware so it is not necessary to use the PMON statement. If you use only the PMON statement, it w ould not enable the HSC func tion. However, if you execute the HSCDEF statem ent and followed by the PMON statem ent, the HSC will be disabled, even though it was previously enabled.

106. Chapter 9 Interrupts Chapter 9 Interrupts

110. Chapter 10 Stepper Motor Control Chapter 10 Stepper Motor Control

27. Chapter 2 Ethernet Port Chapter 2 Ethernet Port

116. Chapter 11 Pulse Width Modulated Outputs Chapter 11 Pulse Width Modulated Outputs

157. Chapter 16 Host Link Command/Response Format Chapter 16 Host Link Protocol Format

128. Chapter 13 LCD Display Programming Chapter 13 LCD Display Programming

132. Chapter 14 Serial Communications Chapter 14 Serial Communications

38. Chapter 2 Ethernet Port 2-11 Figure 2.8.1 2. Local Area Network Properties . Next the Network Connections window should open, which will display all of your network connections. Figure 2.8.2 Now you can either right click on the Local Area Connection and select “Properties” or highlight it and click on “Change settings of this connection” from the Network Tasks sidebar, as shown above. When you do this, the following window will open.

60. Chapter 2 Ethernet Port 2-33 Figure 2.9.2 Under the “Transfer settings” tab you need to set the Transfer mode to “Active” and check the box to Limit number of simultaneous connections. The maximum number of connections should be 1. This is everything that needs to be configured, so you can now click on connect. Figure 2.9.3 If FileZilla has made a successful connection, the status should be: “Connected”, and “Directory listing successful”. Also, you should be able to see all three of the preloaded files in the remote site directory, which is the bottom right window shown here. The three files are “0.HTM”, “2.HTM” and “N.JS”. If you are not able to connect to the Nano-10 server or if you can’t get a successf ul directory listing, then you should first double check the settings you have c onfigured for FileZilla compared to the settings configured in the Nano-10 server. The next thing to c heck is your Windows firewall. You can disable the firewall temporarily to check if it is affecting your FileZilla connection, but it is not recommended to leave your firewall disabled. If you have c onfirmed that disabling the firewall allows you to successfully connect to the Nano-10 server and view the directory listing, t hen you can add FileZilla to the firewall exception list so that you can leave your firewall enabled.

72. Chapter 3 I/O and Internal Relays Programming 2-1 Chapter 3 Digital I/O and Internal Relays Programming

78. Chapter 4 Timers, Counters & Sequencers Chapter 4 Timers, Counters & Sequencers

146. Chapter 15 Host Link Communication Protocol Chapter 15 Host Link Communication Protocol

202. Chapter 18 Extended File System 18-15

203. Chapter 19 Using PLC As a Modbus/TCP Gateway Chapter 19 PLC As A Modbus/TCP Gateway

58. Chapter 2 Ethernet Port 2-31 On the Linksys WRT54G router, y ou would configure it from the “A pplications & Gaming” menu under the “Port Range Forward” tab, as shown below: 2.8.2 Large Corporate Local Area Network In the case of a medium to large corporate LA N, whether incoming and outgoing TCP/IP packets are allowed to go through the corporate firewall is entirel y decided by the System Administrator according to the company’s security policy. Mo st corporate LANs will not allow incoming packets from reaching an internal server until the System Administrator has given the permission to do so. Some company’s network may not even allow devices such as the PLC to open a connection to the Internet to access external data. If your application requires the PLC to access the Internet or to be accessible from the Internet, then you would need to consult your sy stem administrator on the required procedure.

201. Chapter 18 Extended File System 18-14 18.8 Setting Up A FTP Server Behind a Windows Firewall. Please refer to the following Microsoft document describ ing issues and solutions related to FTP server behind the Windows Firewall. http://technet.microsoft.com/en- us/library/dd421710(WS.10).aspx Microsoft focuses mainly on the FTP server in their IIS server (for obvious reasons ) instead of Filezilla. If you are setting Filezilla as a permanent FTP server behind a software firewall you can try to make the following configuration setup: 1) You must specifically setup a range of port number for Passive mode use. These are the port number that Filezilla will assign to the PLC to make a data channel connection when it attempts to transfer a file using passive mode. The following is an example where tw o port numbers are assigned so that two PLCs may connect to the Filezilla simultaneously. You can add a lar ger port range if more PLCs may connect to the FTP Server simultaneously. Next, open up Windows Firewall and add to the Excepti on list the port 21 (command port) and ports 41000 to 41001 (or whatever range limit you have set to in the FileZilla Setup screen). This should allow the FTP Server to receive connection from these ports that the PLC will be using to make the command and data connections.

86. Chapter 5 Analog Inputs Chapter 5 Analog Inputs

138. Chapter 14 Serial Communications 14-6 The most efficient way of handling such serial co mmunication exchange with other devices is to send a command string using the PRINT #n and then start a timer and let the PLC program continue to scan the ladder program. When timer times out, the timer contact is used to activate a custom function and use INPUT$(n) to read the return message fr om the device. This is most efficient use of the CPU time since the program will not have to wa ste time to wait for response string from the device and that’s the reason for INPUT$ (n) to default to non-blocking mode. Another way to deal with this is to use the NETCMD$ function (terminat ed with “~”). NETCMD$ sends a command string and will return immediately w hen it receives a response string or if more than 0.15s has passed. If the device is slow to res ponse the CPU basically sits in a loop to wait for the response for up to a maximum of 0.15s. NETC MD$ function also re-tries the communication several times if it does not receive a response in the first try. A third way of handling serial exchange with other devices is to use the INPUT$(n) command in blocking mode . Starting from CPU firmware r72 and above, if you run the command SETSYSTEM 19, t This will configure the INPUT$(n) command to bl ock the CPU for up to maximum of (t x 10) milliseconds to wait for a valid string from 3 rd party device. Although this command also wastes CPU cycles to wait for a response and hence it is not as efficient compared to using the timer- activated method mentioned above, it nonetheless is very simple to implement and can be used for non time-critical applications. You only need to execute SETSYSTEM 19, t once and INPUT$(n) will block for the same t x 10 millisecond every time it is executed until SETSYSTEM 19,t is run again. To return the INPUT$(n) to non-blocking mode, run SETSYSTEM 19, 0. d) PRINT #n The PRINT statement transfers its entire argument to a 256 byte serial-out buffer, which is separate from the serial-in buffer. The PRINT statement, ther efore, does not affect t he content of the serial buffer for incoming characters. The operating system handles the actual transfer of each byte of data out of the serial-out buffer in a timely manner. Note that the PLC automatically enables the RS485 transmit driver w hen it sends serial characters out of its RS485 port. When the stop bi t of the last character in the serial-out buffer has been sent out, the operating system immediately disables the RS485 driver and enables the receiver. This greatly eases the use of the RS 485 port since there is no need for a user to bother with the often- critical timing of controlling the RS485 driver/receiver direction. d) OUTCOMM This command sends only a single byte out of the serial COMM port without going through the serial out buffer. It enables the RS485 transmitter before s ending the character and disables it immediately after the last stop bit has been sent out.

179. Chapter 17 I2C Communication Chapter 17 I 2 C Communication

39. Chapter 2 Ethernet Port 2-12 3. Edit TCP/IP Properties Figure 2.8.3 Now you want to highlight the Internet Protocol (TCP/IP) item and click on Properties. This will open up a new window that allows you to change the network settings for t he Ethernet port that you selected. The Ethernet hardware you are configuring is shown under “Connect using:” in the current window. 4. Configure IP Address and Gateway Figure 2.8.4 By default your Ethernet settings will be configured to be obtained automatically (in this case only the IP settings are set to be obtained automatically). This setting will not work since the NANO-10 PLC does not have the ability to assign IP address to the PC’s Ethernet port. So you need to manually set the IP address and the Subnet mask. The IP address should be on the same subnet as the IP address you have set for your PLC. For example, if your PLCs IP address is set to the default address of “192.168.1.5”, then you should set your PCs IP address to be: 192.168.1.xxx The xxx can be any number between 1 and 255, except for 5 (your PC can’t have same IP address as your PLC) The Subnet mask should be set to “255.255.255.0” no matter what and the other settings should be left blank because you won’t be connecting this Ethernet port to the Internet.

57. Chapter 2 Ethernet Port 2-30 2.8 Accessing The PLC from Internet 2.8.1 Small Local Area Network Using Consumer Grade Network Router When you connect an Nano-10 PLC to your home Ethernet router, the PLC would have joined a “private” local area network (LAN). It is accessible, through its private static IP address, by other devices on the same LAN as long as each device is on the same “subnet” (See section 2.1 fo r an explanation of subnet settings). The PLC is also able to access the Inte rnet through the router because the router would translate a private TCP/IP packet sent from the PLC in to a public TCP/IP packet out of the Internet and if there is any return data from the In ternet meant for the PLC, the router would know that and automatically routes the return packet back to the PLC. The rout er performs what is known as “Network Address Translation (NAT)” and such routers are called NAT routers. However, the same FServer and Modbus/TCP servers on the PLC are typically inaccessible from the public Internet. This is because the router has a built-in firewall that does not permit external TCP/IP packets from the public Internet to reach the devices on the private LAN. In other words, the NAT router allows the PLC outgoing access to the Internet but by default does not allow incoming access. Most small NAT routers for home use such as those produced by Linksys, Netgear, D-Link or Belkin do allow you to configure the router to “open” and “forwa rd” a specific port number to a specific device on the private network. For example, if your PLC static IP address is 192.168.1.5 and you wish to open its FServer port (9080) but not its Modbus/TCP port (502) to the public internet, you would configure your router such that it will forward the incoming TCP /IP packet destined for port number 9080 to the device at IP address 192.168.1.5. Once you hav e done that, you will then be able to access the FServer from the Internet using the router’s public IP address (this is typically assigned by the In ternet Service Provider) and the port number 9080. However, the Modbus/TCP port is not accessible from the Internet since this port number is not opened and not mapped by the router. You should read your router’s User’s Manual to find out how to configure the router to perform the “port forwarding” described above since each router model has a different user interface. For example, on the D-Link DI-624 router you configur e the router by clicking on the “A dvanced” tab and selecting “Virtual Server” from the router conf iguration page, as shown below:

96. Chapter 6 Special Digital I/Os Chapter 6 Special Digital I/Os

98. Chapter 7 High Speed Counters Chapter 7 High Speed Counters

43. Chapter 2 Ethernet Port 2-16 2.3 On-line Monitoring/Programming via FServer If you have used the i-TRiLOGI software to connect to TLServer or the X-Server previously, the procedure is identical. To test i-TRiLOGI communica tion with the Nano-10 PLC, click on “Controller -> On-Line Monitoring”, or simply press <CTRL-M> keys. Figure 2.2.1 When the “Login To TLServer” screen pops up, enter the “IP address : port”, the username and the password that you have defined for the FServer earlier using the conf iguration tool, and click on the “Detect ID” button to detect the PLC’s ID. If i-TRiL OGI is able to connect to the Nano-10 PLC via the Ethernet network, then the PLC’s ID will appear in the ID box. When you click the “OK” button, the on-line monitoring screen should appear and you should see the “Activity LEDs” on the RJ45 connector blinking away. You have now successfully connected to t he FServer and you can run all the commands under the “Controller” menu, including transferring your new pr ogram to the PLC or setting the PLC’s Real Time Clock, etc. For more details on using these commands, please refer to i-TRiLOGI Programmer’s Reference. Likewise, to transfer your new program to the PL C, you can click on the “Controller” menu and select “Program Transfer to PLC” or press the <Ctrl-T> ke ys. If i-TRiLOGI is already connected to the FServer, the program transfer will begin immediately after you’ ve confirmed your action. Otherwise the same “Login to TLServer” screen, as shown on Figure 2. 2.1, will appear for you to complete the login sequence. Note: 1) Unlike the TLServer software that runs on t he PC, which allows unlimited connection time, the FServer on the Nano-10 PLC will disconnect the client if there is no activity for more than 10 minutes. The older version of the i-TRiLOGI program may not detect that the connection has been closed and it may instead think that the PL C is not present. When this happens you should click on “Controller” menu and select “Disconnect” to properly shut down the connection that has already been reset by the PLC. 2) If you are unable to connect to the PLC, then c heck that both the PLC and the PC running your i- TRiLOGI software are connected to the same local area network (LAN) and are on the same subnet. Generally for a subnet mask of 255.255.255. 0, if the PC’s IP address is 192.168.1.xxx then the PLC should have an IP addr ess of 192.168.1.yyy and it will not work if the PLC has IP address such as 192.168.0.yyy or 192.168.2.yyy, sinc e this means that the two devices are on different subnets. Likewise, if your PC’s IP address is “192.168.0.xxx”, then please change your PLC’s IP address to “192.168.0.yyy”. Also ensure that the PLC’s IP address is not already

65. Chapter 2 Ethernet Port 2-38 2.10 Accessing and Customizing the HTML Web Interface for Control and Monitoring In the previous section ( 2.9 Installing a Web Page or Web Applet into the Nano-10 PLC using FileZilla ) you were shown how to transfer html files to the Nano-10 web server. These files can be accessed from any standard web browser that supports AJAX technology (Internet Explorer, Firefox, Safari) locally as long as your Nano-10 is connected to the LAN (local area network) or from anywhere in the world as long as your Nano-10 is connected to the Internet. Even the iPhone and other smartphones that support AJAX can be used to access these web pages, which means your application can be controlled and monitored from anywhere while on the go. The Nano-10 PLC comes prepackaged with two ready-to- use web pages installed in its web server and a JavaScript file that interfaces to the PLC. Thes e web pages run on HTML and JavaScript code, which is why they are only accessible from standard browsers that support AJAX technology. However, the HTML files are designed to be easily modified by anyone, even if you don’t have any programming experience. The purpose is to be able to easily customize the web page layout for your specif ic application by defining some label names and a background image without hav ing to worry about the programming required to interface to the PLC, which is already taken care of. As mentioned in the previous sect ion, the two html files that co me with the Nano-10 are “0.HTM” and “2.HTM” and the JavaScript file is “N.JS”. The N.JS file should generally be left alone unless you are very experienced with JavaScript and would like to ex pand on the interface between the Nano-10 PLC and the html files. Note that we do not support custom izing the “N.JS” file if you choose to do so. 2.10.1 Accessing the HTML Files from a Standard Browser In order to access the web pages stored in the N ano-10 web server, you need to open your web browser and enter the IP address and port number of the Nano- 10 server in the address bar. You also need to append the filename of the web page to the end of the address. All this should be done in the following format : IP:Port/Filename For example, if the IP address of the Nano-10 is 192.168.1.5 and the port number is 9080 (these are the default values), then you should enter the following in t he address bar in order to access the “2.HTM” file : http://192.168.1.5:9080/2.HTM If you want to access the “0.HTM”, then you can c hange the filename in the address or you can remove the filename so that only the IP:Port are in the addr ess bar. This will work only for the “0.HTM” file because it is loaded by default when no other filenames are specified. If you have removed “0.HTM” from the Nano-10 server, then you will always have to s pecify the filename of the web page you want to access. This is what the default web pages will look like when they are loaded into your browser:

131. Chapter 13 LCD Display Programming 13-3 need to provide enough spaces to take care of the sign if you need to handle both positive and negative numbers. 13.4 Displaying Decimal Point Although the Nano-10 PLC does not handle floating-point computation, it is still possible to perform computations involving fractions by using “fixed point” notat ion. E.g. If each unit r epresents 0.01, then the number 1234 represents the value 12.34. It is quite simple to display a number on the LCD displa y with a decimal point as follows: You first divide the numeric variable by 100 to obtain the integer co mponent (i.e. the portion to the left of the decimal point) and use the MODULUS operator to obtain the dec imal component (i.e. the portion to the right of the decimal point) of the number. So to display a num ber contained in X with two decimal places, do the following: E.g. SETLCD 1,1, “Data=“+STR$(X/100)+”.”+ STR$(X MOD 100) Hence, if the number X = 12345, then (X/100 = 123) and (X MOD 100 = 45) and the above would display the string “Data=123.45”.

56. Chapter 2 Ethernet Port 2-29 Next, please enter the text as shown in the follo wing diagram and then click OK. This will command the Excel spreadsheet to send the web query string “RI00” to the Nano-10 PLC that is connected to the network with IP address = 192.168.1.5 and port 9080. The query string “RI00” is for reading the status of 8-bit input channel #0 (which covers the logic states of input bit 1 to 8). If the FServer is accessible by the PC from the netwo rk router, it will send t he response data, which will be displayed on the selected spreadsheet cell w here the New Web Query was defined earlier. The response data shown on the cell could be RI 00. The response data includes the command header “RI” as defined in the HostLink Command protocol described in Chapter 15 . The data 00 indicates that none of the inputs 1 to 4 are currently turned ON. Figure 2.6.2 To see how the response data changes in response to the actual PLC’s input, please turn on some of PLC’s digital inputs 1 to 8, then right-click on t he cell where the web query was defined and select te “Refresh Data” command. You should see a new “RIXX” string appear at the selected cell where “XX” is the hexadecimal representation of t he 8 input bits 1-8. E.g. if only inputs 2 and 8 are turned ON, then the binary pattern is 1000 0010 which in hexadecimal fo rm is 82 and the response string would therefore be “RI82”. You can then write an excel formula to extract the data “82” and use it for your other computation purpose. By using a different Host Link command, the Excel spreadsheet can read and write to the PLC’s internal data very easily. Notes: 1. If you have enabled “Use Username/Password” for t he FServer, you will be prompted by your Excel program to enter the Username and password bef ore you can receive the response data. 2. We have provided a more complete Excel spr eadsheet example “ExcelQuery.xls” which can be downloaded from: http://www.tri-plc.com/appnotes /F-series/ExcelQuery.xls The macro in this file converts the RIXX data it receives into ON/OFF i ndicators on the Excel Spreadsheet cells. Note that this spreadsheet file uses the “HEX2DEC” function t hat is not normally available when you first install the Excel program. But you can add it in by insta lling the “Analysis Toolpak”. Please search your Excel Help file for the specific method of adding in this toolpak as it may change from one version of Excel to another. On Excel 2000, you can click on the “Tools->Add Ins”, check the “Analysis Tookpak” check box and then click OK. MS Excel w ill automatically install the toolpak for you.

64. Chapter 2 Ethernet Port 2-37 plug another PLC with the same IP address to t he network, then Windows will pass to FileZilla the MACID of the PREVIOUS PLC instead of the new PLC using data in its ARP cache memory. When FileZilla tries to connect to the right IP address but a wrong MACID, it of course would not be able to connect properly. In such a scenario, you must clear the Windows AR P cache first using a command prompt as follow: The “ arp –d ” command tells windows to delete its ARP cache data. So when you use FileZilla to connect to a new PLC Windows will do the necessary to properly connect to the new PLC that has a different MACID from the previous PLC. Note that the same issue applies to using I-TRiLOGI to transfer program to multiple PLCs that are all set to the same default IP address, even t hough only one PLC will be connected to the network at a time. You will need to clear the ARP cache after ev ery transfer to avoid problem. Or else you have to wait for windows to expire its ARP cache data before connecting the next PLC.

31. Chapter 2 Ethernet Port 2-4 Figure 2.1.3 Windows users may also search the Internet for a free “host.exe” tool that lets you resolve the IP address from a given domain name (one host.exe tool that we found to work was downloaded from http://pigtail.net/LRP/dig/ ). For example, executing the comm and line: “host mail.sbcglobal.net” will resolve its IP address. (Of course you can only use th is smtp server provided your ISP is SBC, almost no SMTP server will relay emails from a client that is not its one of its own subscribers). If you do not plan to use the FServer to send out ema ils yet, then you can leave the default SMTP Server IP Address = 0.0.0.0. You can change t he settings anytime later when you need it. 2.1.4 DNS Server IP Address DNS (Domain Name Server) allows the FServer to contact a remote server by means of domain name instead of IP Address. The DNS takes in the giv en domain name (such as yahoo.com) and returns the IP address of the target server. You will need to fill in the DNS IP Address if you intend to ask the Fserver to resolve a domain name into an IP address, or you int end to contact a client directly by using domain name instead of using IP Address. Note: Only Nano-10 PLC with firmware version r72 and above supports the use of domain name when contacting a remote server. The DNS server IP address could be the same as the Ga teway IP Addr described in section 2.1.3. But it will be more efficient to define the actual DNS server IP address that your ISP provides. You can usually obtain the DNS server IP address by going to t he Administrator page of your router and pull up information on the WAN. E.g. The DNS server address you can see from the following screen is 64.59.144.92.

37. Chapter 2 Ethernet Port 2-10 2.2.2 Setting up Ethernet Communication Directly Between a PC and an FMD PLC It is possible for your PC to communicate directly with an NANO-10 PLC through the Ethernet port. This means that you can have a peer-to-peer connection between the NANO-10 PLC and your PC without an Internet connection or any additional network equipment. The PC being used would need a spare Ethernet port in order to do this. What You Will Need 1. A PC with a spare Et hernet port (RJ45 connection) 2. An Ethernet cable** 3. A NANO-10 PLC **There are two types of Ethernet cables: A standard straight through cable, which is used in most situations, and a crossover cable, which is required w hen there is no auto-switching hardware in either of the two Ethernet ports (PC and PLC). The NANO-10 PL C does NOT have auto-switching capabilities so it will depend on the PCs Ethernet port whether or not a cro ssover cable is required. If you are not sure if your PC’s Ethernet port is able to perform auto-switching (most moder n PC has auto-switching built-in), then it is best to use a crossover cable. A crossove r Ethernet cable will work in both situations, but a straight through Ethernet cable will only work if one or both of the Ethernet ports can perform auto- switching. How to Set Up Your PC Before you can communicate with the PLC, you w ill need to configure the Ethernet port on your PC to match the settings that you configured in the PLC (default IP is 192.168.1.5). For more information on configuring the PLC Ethernet settings, see section 2.1 Configuring The Ethernet Port . Once you have configured your PLC’s Ethernet settings (If you dec ided to change the default IP), you will need to set your PCs Ethernet port to have a stat ic IP address that is on the same subnet as the IP address that is set for your PLC. How you do this is a bit diffe rent depending on your operating system, so the following sections will show step-by-step in structions for configuring your PCs Ethernet settings on Windows XP, Windows 7, and Windows 8. Windows XP Ethernet Configuration 1. Open Network Connections . The first thing you will need to do is open the Network Connections window from the “Start” menu by selecting “Show all connections” from the “Connect To” menu, as shown here:

124. Chapter 12 Real Time Clock 12-2 In the circuit above, RTC.Err is a special bit that cannot be renamed in your program. The output RTC_Alarm is a user-defined output that could be nam ed to anything. If the RTC Error event occurs for any reason, the RTC.Err bit would activate the RTC_Alarm output. 12.4 Setting the RTC Using TRiLOGI Software The RTC date and time can be easily set within TRiLOGI by selecting “Set PLC’s Real Time Clock” from the “Controller” menu. A window will pop up with default values entered as shown below in Figure 12.1. All of these values can be edited and then written to the PLC by clicking on “Set PLC’s Clock” Figure 12.1: Set Real Time ClockSetting the RTC Using TBASIC The PLCs RTC can be set from TBASIC using the DA TE[] and TIME[] registers shown in section 12.2. Figure 12.2: Set Date & Time in TBASIC, shown bel ow, is an example of a custom function where the date is set to October 1 st 2008, the day of the week is Wednesday , and the time is 14:30:01 (2:30:01 pm). Figure 12.2: Set Date & Time in TBASIC

188. Chapter 18 Extended File System Chapter 18 Extended File System

41. Chapter 2 Ethernet Port 2-14 2. Open Network and Sharing Center : In the Network window, click on the Network and Sharing Center option on the top pane as in the below picture. 3. Manage Network Connections : In the Network and Sharing Center window, click on the Manage network connections option under the tasks pane on t he left side of the window as in the below picture. 4. Follow steps 2-5 in the Windows XP Ethernet Configuration section above to complete the setup, as it is the same process.

90. Chapter 5 Analog Inputs 5-4 data changes. If the analog data changes slowly (such as room temperature) then there may be no need to sample the analog at high frequency. A very simple example of sampling the analog input #1 to #2 every second and converting the data into voltage readings of 0 to 5000 (which repres ents 0 to 5.000V) is shown as follow: Figure 5.3 You can examine the readings of DM[ 11] to DM[12] from the “Online Monitoring - View Variables-DM[n]” screen. These readings represent the voltages measur ed at the analog input pins. You can also read the raw ADC readings (which will change in the range betw een 0 to 4095) from the “View Variables - integer” screen. 5.2.4 Moving Average The Nano-10 PLC offers a built-in “Moving Average” computation routine for each ADC channel. When moving average is enabled the PLC firmware would st ore the past analog readings for each channel in its own historical memory array, and each new inst antaneous reading would overwrite the oldest reading. When you run the ADC(n) function, the PLC firmware would return the average of these past readings instead of the instantaneous new reading. You can define a moving average of 1 to 9 points using the procedure described in Section 5.4.3 Defining a larger moving average can better help to ev en out fluctuations in ADC readings that can be caused by interference from digital noise. However, t he larger the moving average, the slower the ADC(n) function can detect a sudden change in the amplitude of the analog signal due to the averaging effect. For a system that needs to quickly detect a signal c hange, consider using either a smaller number of moving average points or call the ADC(n) functi on more frequently so that a sudden change can be detected earlier. 5.2.5 Scaling of Analog Data The 12-bit analog inputs on the Nano-10 PLC returns dat a in the range of 0 to 4095, which corresponds to the full range of the voltage input presented at t he analog pin. However, very often a user needs a formula to translate this numeric data into units meaningful to the process (e.g. degree C or F, psi etc). To do so, you need to know at least two refer ence points of how the native unit maps to the PLC's ADC reading.

196. Chapter 18 Extended File System 18-9 9. Click “OK” to complete the setup. The FTP server should now be waiting for connection. 18.6.2 Testing Connection To The FTP Server Using Telnet You can now test the FTP Server using the FileZilla c lient as mentioned in Chapter 2.9 of the PLC User’s Manual. But a better way to test is to use the “Telnet” pr ogram on your PC (if you are running Windows Vista or Windows 7 you may need to enable the Telnet program since it is disabled by default – do a quick Google search on how to enable the Tel net client software on your PC). Also you may want to find out the IP address of your PC that is running the FileZilla Server. If you have TLServer running on your PC your IP address is repor ted on the TLServer’s front panel. You can also get the IP address from the Windows “Network Connection Status” as shown below. Our test PC has an IP address = 192.168.1.168 which will be used in the following tests as well as used in the PLC program to connect to the FTP Server.

198. Chapter 18 Extended File System 18-11 connections to the FTP Server. Thus it can give you a lot of headache when you are trying to connect to the FTP server operati ng behind the Windows Firewall. Notes: a) The main purpose of Windows Firewall is to protect your PC when you are connected to say a public wi-fi network. But if your PC is connected to the Internet via a router at work or at home, the router hardware itself would act as a firewall to isolate your PCs and a software Firewall is actually redundant. (If a hacker tr ied to connect to a port using your public Internet IP address what he reached would be the port on the router and he would not be able to reach your PC unless you have specific ally set up to forward all TCP/IP messages sent to that port to a specific PC). b) If you really want to use the Filezilla FTP Server as a permanent server on a PC to receive files, and still want to have the Windows Firewall enabled, you can refer to the last section in this chapter which describes how to do it.

3. USER MANUAL Page ii Conditions of Sale and Product Warranty Triangle Research International Inc. (TRi) and the Buyer agree to the following terms and conditions of Sale and Purchase: 1. The TRi Products are guaranteed against defects in materials or workmanship for a period of one year from the date of registered purchase. Any unit found during this time to have manufacturing defect/s will, at the discretion of TRi, be repaired or replaced. 2. TRi will not be responsible for the repair or replacement of any unit damaged by user modification, negligence, abuse, improper installation, or mishandling. 3. TRi is not responsible to the Buyer for any special, consequential, indirect or similar damages, including any lost profits or loss data arising from the use or the loss of use of TRi products. In no case shall TRi's liability exceed the purchase price for the products. 4. TRi products are NOT certified to be FAILSAFE and hence must NOT be used in applications where failure of the product could lead to physical harm or loss of human life. Buyers are responsible to conduct their own tests to meet the safety regulation of their respective industry. 5. Products distributed, but not manufactured by TRi, carry the full original manufacturers warranty. Such products include, but are not limited to: power supplies, sensors, I/O modules and battery backed RAM. 6. TRi reserves the right to alter any feature or specification at any time with each product revision release. Notes to Buyer : If you disagree with any of the above terms or conditions you should promptly return the unit to the manufacturer or distributor within 30 days from date of purchase for a full refund.

14. Chapter 1 Installation Guide 1-2 browser on a smart phone such as the Apple’s i-Phone or just about any PC/Mac browser! An example template will be provided to demonstrate this ability and you can easily modify the template to create the web page that is specific to your own application. The Nano-10 PLC comprises 2 analog inputs (12-bit, 0-5V DC), 4 digital Inputs, and 4 digital outputs. 2 of the digital outputs (1 and 2) can each sink up to 4A peak and 2A continuous, 24VDC current from the load and can be used to output stepper motor pulse/dir ection signals, or used as Pulse-Width Modulated (PWM) output driver. The other 2 di gital outputs each comprises a pair of voltage-free contacts, allowing switching of two isolated loads of up to 5A current per channel (24VDC/AC or 120VAC). In addition, all 4 of the digital inputs can be used for decoding and measuring pulses received from up to 2 digital encoders, allowing you to measure position and ve locity of 2 moving objects in real time. All 4 of the digital inputs can also be defined as interrupt input s, allowing fast events to be handled in the shortest possible time and to not be constrained by the program scan time. The Nano-10 built-in RS485 port allows it to interface to many peripheral devices such as an LCD display (e.g. MDS100-BW http://www.tri-plc.com/mds100bw.htm ) or a serial touch panel (e.g. Maple System HMI). The RS485 port is conversant in MODBUS pr otocol and can be used as a MODBUS master or slave to construct a highly sophisticated control syst em. You can also use it to interface to bar-code readers, serial printers, RFID readers, or use it for programming/monitoring via the TLServer software (part of the i-TRiLOGI software suite). The Nano-10’s RS485 port is also the only means to co mmunicate with the Nano-10 CPU if your Ethernet configuration settings are corrupted and it c annot be connected to your network router. 1.2 Physical Mounting & Wiring The Nano-10 can be easily installed in many kinds of plastic or metal enclosures. You need to use 4 PCB standoffs (or screws and nuts) to support the c ontroller and fasten it to a console box. CAUTION: DO NOT install the Nano-10 PLC with the mechanica l relays in the vertical position as shown in the following two diagrams. Figure 1.2.1: Incorrect Relay Position The manufacturer of the mechanical relays current ly used on the Nano-10 PLC (part # JQ1a-24V-F) is now specifying that the relay not be installed in the vert ical position or it could fail to actuate on occasion, typically after many previous switches. However, t he results may vary and it should be assumed that the relay can potentially fail at any time when inst alled in the specified vertical position. According to the relay manufacturers revised docum entation: "When installing with the relay terminals parallel to the ground, the contact terminals at t he bottom and the coil terminals at the top, component friction will occur after numerous switching actions or due to vibration in the non-excitation state. Since

21. Chapter 1 Installation Guide 1-9 1.6.2 Non-Volatile Data Storage Users of the M-Series PLCs (T100MD+ and T100MX+ PLCs) may be familiar with the PLCs’ EEPROM memory as well as some of its limitations. Standard Nano-10 PLC does not have any built-in EEPROM on board. An optional FRAMRTC module can be added to the Nano-10 to provide up to 11K words of non-volatile, high-speed ferromagnetic memory t hat behave just like EEPROM to the PLC. However, if you have only limited use of the EEPROM memory say to store some non-volatile parameters once in a while, and you do not wish to incur the expense of buying the FRAM RTC module, then you will be glad to learn that the Nano-10 CPU cleverly uses its static RAM to shadow a flash memory area in the CPU to provide up to 1024 words of “pseudo EEPROM”, t hat allows user to read and write to/from these memory using the standard TBASIC SAVE_EEP, LOAD_EEP , SAVE_EEP$, LO AD_EEP$ commands. The pseudo EEPROM data are normally stored in static RAM memory. This implies you can read/write to the pseudo EEPROM at full speed with no limitation to the read/write life of the pseudo EEPROM area since these are actually just RAM memory. However, since data stored in RAM are volatile, they need to be saved into the non-volatile flash memory befor e power down. Nano-10 allows you to do so easily using a single SETSYSTEM command, as follow: SETSYSTEM 252, 0 Upon execution of the above command, the Nano-10 CPU will erase a special flash memory area used to backup the pseudo EEPROM and it will then copy the entire pseudo EEPROM memory data to the flash memory. However, the CPU will perform the back up only if there are any changes made to the pseudo EEPROM area. This is to prevent unnecessa ry erase/write of the flash memory. It is the responsibility of the programmer to det ermine when and how often to run the abovementioned SETSYSTEM command before power to the Nano-10 is re moved in order not to lose data. The reason why the programmer should not backup the pseudo EEPROM space to the flash memory every time a data has changed is because (a) The backup process can take tens of millisecond to complete. (b) the backup involves erasing the flash sector and burning the new data into the flash sector, and the flash memory does have a write cycle life of only about 100,000 cycles which should not be exceeded. Note: The CPU will also automatically backup t he pseudo EEPROM memory to the flash memory whenever the PLC executes a software reset or reboot, or if the PLC is reset or rebooted via the serial or Ethernet communication. Upon power up, the CPU automatica lly loads the data from the flash memory into all the pseudo EEPROM memory and therefore this memory can be used just like the standard EEPROM data memory in the M-series and the F-series PLCs. Important: If the PLC program runs any of the fo llowing commands: SETIPADDR, SETTIMERSV, SETCTRSV, the command should also be followed by the SETSYSTEM 252, 0 command (or a RESET command) at least once before the power to the PLC is turned off to ensure that the new parameters are written to the flash memory (separate memory loca tion from the data memory mentioned above). In the case of SETIPADDR command, the new IP address only take effect after a REBOOT or power on reset. Automatic Backup Using Power Failure Interrupt On a Nano-10 PLC, an onboard power failure detection circuit detects a power failure when the power supply voltage drops below approximately 16V, and you can setup the PLC to execute a user’s defined power failure interrupt custom function. It is therefore tempting (and indeed possible) to include the SETSYSTEM 252,0 function inside the power failure inte rrupt custom function to automatically backup the pseudo EEPROM data during power failure. This is actually possible provided you are using a good power supply that provides a gradual dec ay of supply voltage during power down.

119. Chapter 11 Pulse Width Modulated Outputs 11-3 2. The simple PWM speed control scheme descri bed above is the open-loop type and does not regulate the speed with respect to changing load torque. Closed-loop speed control is attainable if a tachometer (either digital or analog) is used whic h feeds back to the CPU the actual speed. Based on the error between the set point speed and the act ual speed, the software can then adjust the PWM duty cycle accordingly to offset speed variation caused by the varying load torque. A PID function may also be invoked to provide sophi sticated PID type of speed control. 3. The Nano-10 PWM can be used to control the s peed of small motors only (up to the maximum current limit that the PLCs output can safely drive). For larger motors, industrial-grade variable-speed drives should be used instead. 11.4 Position Control Of RC Servo Motor RC Servo is a class of DC servo motor commonly us ed in remote control (hence the term RC) for positioning a device at a desired location. It is oft en termed “proportional control” because the position where the motor will turn to is directly proportional to the pulse width of the control signal. When chosen appropriately, RC Servo can provide an extremely i nexpensive and versatile solution for positioning a device. For example, for controli ng the percentage opening of a HVAC damper, or to rotate the angle of window blinds or to position a solar panel to tra ck the sun light. There are many sizes of RC Servo available in the market, from those that weigh just a few grams to those for controlling an industrial scale unmanned vehicle (e.g. UAV or unmanned submarine). A small, self-contained RC servo typically cost less than $20 retail price and is incredibly eas y to control using the Nano-10. 1ms 1.5ms 2.0ms Figure 11.3 RC Servo and Control Signal RC Servo typically only have 3 wires: Power “ + ” (typically 4.8 to 6V), “ – “ and a “Control” input. To position the RC Servo to a position within its range of travel (Some are 0 to 90 degree and there are those that can go from 0 to 180 degree), you send a pos itive pulse with pulse width between 1.00 ms to 2.00 ms to the “Control” input once every 20ms. T he servo will position the actuator to one end when it receives a pulse of 1.00ms and the ot her end when it receive a pulse of 2.00ms. If you send it a pulse of 1.50ms it will position the ac tuator to the center. In PWM term, 1.00ms pulse width every 20ms means a duty cycle of 1.00/20.00 = 5.00%. 2.00ms pulse width every 20ms means a duty cycle of 2.00/20.00 = 10.00% duty cycle. So to control the position of the actuator one only needs to send it a positive PWM signal with frequency = 1/0.02 = 50Hz and duty cycle between 5% and 10%. The gear and servo feedback mechanism within the RC Servo produces a huge amount of torque relative to its weight for positioning the ac tuator to the position determined by the pulse width at the “control” input. Yet once it is in the correct position the serv o draws only minimum current required to maintain its

127. Chapter 12 Real Time Clock 12-5 12.9 Control of RTC Hardware On Nano-10 PLC with r72 and above firmware, you c an use the following command to control the RTC hardware: SETSYSTEM 253,n n = 0 ‘ Stop built-in RTC 1 ‘ Run built-in RTC 2 ‘ Disable auto RTC update from FRAMRTC 3 ‘ Enable auto RTC update from FRAMRTC An example program “RTCcontrol.PC6” is incl uded in the “Nano10Samples.zip” file that you can download from: http://www.tri-plc.com/trilogi/Nano10Samples.zip 12.10 Troubleshooting the FRAMRTC If the RTC.Err bit is ON (indicating a bad RTC) and t he battery is properly installed on the FRAMRTC, then the RTC component on the FRAMRTC could be corrupted or damaged. This could happen if there was any damage to the components on the board, such as I/O drivers, communications drivers, or any of the IC’s or PCB circuitry. Also, if a voltage spike came into the PLC through its I/O, power supply, or communications ports, that could cause some co rruption even if there was no component damage. If the RTC is only corrupted, then you should only have to set the RTC to resolve the problem. This can be done most easily by using the TRiL OGI method of setting the RTC that was described in section 12.4. After setting the RTC, the PLC should be power ed off and then powered on again. The RTC.Err bit should be off at this point, but if it isn’t, then there is a possibility of damage to the PLC. At this point you should contact Triangle Research tech support or if you have purchased the unit from a local distributor, then you should contact the di stributor for assistance.

184. Chapter 17 I2C Communication 17-5 Comments After sending the START bit, the CPU will write the 7-bit slave address &H60 (=110 0000 binary) and a R/W bit set to 1, followed by 16 clock pulses to read 2 bytes of data and store into DM[21] and DM [22], and then the CPU will generate the STOP bit. i.e. there is no need execute the I2C_STOP command after an I2C_READ command.

15. Chapter 1 Installation Guide 1-3 this may cause the relay to stop functioning when the pick-up voltage increases even if the nominal voltage is applied, please do not install using this ori entation." This is demonstr ated in Figure 1.2.1 above. On the Nano-10, the relays will be orientated this wa y when the PLC is installed in the following position demonstrated in figure 1.2.2. This position s hould be avoided when the relays are being used. Figure 1.2.2: Incorrect NANO-10 Orientation The following subsections show some hardware details of the I/Os that are av ailable on the Nano-10 PLC model. Separate chapters in this manual will be devot ed to discussing the programming methods for this hardware. 1.2.1 Digital Inputs, Analog I nput and RS485 Communication Ports The two-wire RS485 port, 4 digital inputs and 2 analog inputs as well as a +5V analog reference voltage are all available on a bank of screw termi nal blocks along the lower edge of the PLC: -RS485+ IN1 IN2 IN3 IN4 AN1 AN2 +5V Two-Wire RS485 Port 4 Digital Inputs (24V, NPN) 2 Analog Inputs (0-5V) +5V Analog Reference Figure 1.2

67. Chapter 2 Ethernet Port 2-40 Internal Relay Bits: Figure 2.10.4 The 4 “Output” buttons and 4 “Input” buttons shown on 0.HTM are all mapped to internal relay bits #129 to #134 in the Nano-10 PLC. Even though the buttons are labeled as “Input” and “O utput”, they are not actually connected directly to any physical I/O so it is up to the PLC program to map the internal relay bits to the physical I/O in the PLC program. The “i-Relay.P C6” program maps these relay bits to the physical inputs and outputs of the PLC. However, the relay bits don’t have to just interact with physical I/O, they can control anything in the PLC program such as custom functions, timers, counters, etc. Note: The Nano-10 PLC is preloaded with the “i-Relay .PC6” program. A copy of the program may be download it from: http://www.tri-plc.com/nano/i-Relay.zip . Data Memory: Figure 2.10.5 There are four data memory locations that can bot h display the values set by the PLC program and accept new values to be stored in the PLC DM[] loca tions. The first four DM[] locations are used, which are DM[1], DM[2], DM[3], and DM[4]. These are also the l abel names set in the 0.HTM file, but they could be set to anything such as what is shown in the 2.HTM file. 2.10.3 Customizing the HTML Files Now that you know about the component s included in the HTML files, you can try to customize the HTML files to fit your application or just for fun. In order to customize the HTML files, you will need to open them with a text editor such as Notepad. The file 0.HTM w ill be used as the example in this section, but 2.HTM may be referred to occasionally as well. These files typically open with your default web browser so you will need to right click on 0.HTM, select “Open With”, and then choose Notepad.exe or your preferred text editor. Once you have opened 0.HTM in your text editor, you will need to scroll down to the area in the file where it says: “* Level 1 User Modifications Begins here”. You should then see the following in your text editor:

81. Chapter 4 Timers, Counters & Sequencers 4-3 Figure 4.2: Completed Timer Circuit 4.2.4 Example 2 – Creating a Simple Counter Circuit in Ladder Logic You can place components in the circuit by clicking in the green area to the right of the red arrow, as shown in Figure 4.3 below. This will bring up the component tool bar in t he gray area above the green circuit area. Figure 4.3: Creating Ladder Circuit Once the component toolbar is shown, you can pl ace your activating contact by selecting the #1 component from the toolbar and then selecting the activating input from the I/O Table. The contact will then be automatically placed in the ladder logic circuit. The same can be done for the counter coil by selecting the #7 co mponent from the toolbar and then selecting a counter that has been entered into the I/O Table. Then a counter contact needs to be added as an input to a ladder logic circuit. This contact will activate once t he counter counts down. This could be used to turn on an output after a certain count is reached. Placing a c ounter contact in a circuit is the same as placing any contact in a ladder circuit, except that the co rresponding counter should be selected from the “Counters” section of the I/O table. After creating a ladder circuit that contains one input and one counter output and another ladder circuit that contains one counter contact and one output, the l adder logic circuit should like something like Figure 4.4, below: Figure 4.4: Completed Counter Circuit

84. Chapter 4 Timers, Counters & Sequencers 4-6 The "Special Bits" table is located after the "Counter s" table and before the "Input s" table. Click on the "SeqN:x" item to insert a sequencer bit. You will be prompted to select a sequencer from a pop-up menu. Choose the desired sequencer (1 to 8) and another dial og box will open up for you to enter the specific step number for this sequencer. Each step of the sequencer can be programmed as a contact on the ladder diagram as "SeqN:X" where N = Sequencers # 1 to 8 and X = Steps # 0 - 31. e.g. Seq2:4 = Step #4 of Sequencer 2. Seq5:25 = Step #25 of Sequencer 5. Although a sequencer may go beyond Step 31, if you define a larger SV for it, only the first 32 steps can be used as contacts to the ladder logic. Hence it is necessary to limit the maximum step number to not more than 31. Quite a few of the ladder logic special functions are related to the use of the sequencer. These are described below: 4.4.2 Advance Sequencer - [AVseq] Increment the sequencer's step counter by one until it overflows. This function is identical to (and hence interchangeable with) the [UpCtr] function. 4.4.3 Resetting Sequencer - [RSseq] The sequencer can also be reset to become inactive by the [RSseq] function at any time. Note that a sequencer that is inactive is not the same as sequencer at Step 0, as the former does not activate the SeqN:0 contact. To set the sequencer to st ep 0, use the [StepN] function described next. 4.4.4 Setting Sequencer to Step N - [StepN] In certain applications it may be more convenient to be able to set the sequencer to a known step asynchronously. This function will set the selected s equencer to step #N, regardless of its current step number or logic state. The ability to jump steps is a very powerful feature of the sequencers.

195. Chapter 18 Extended File System 18-8 6. Click “Edit –> Users” in order to set up a user name and password for your test. The “ExtendedFileSystem.PC6” program uses a usernam e = “PLC” and password = “1234” so for a quick test you may like to setup the same username and password: 7. At the “General” page of the se tup screen, click “Add” button at the “Users” pane to add a username “PLC”. Since no group has been defined simply leave the default as “<none>” in the second text box as shown in the following diagram. 8. Next click “Shared folders” page and you must set up a folder that is to be used to receive uploaded file. Click “Add” at the “Directories” pane to add the folder. You can choose any folder on your PC to be used for the FTP upload and you just have to remem ber the location so that you can look for the uploaded file later in the test. However, make sure that you check all the check boxes for “Read”, “Write”, “Append” etc as shown in the diagram.

28. Chapter 2 Ethernet Port 2-1 2 ETHERNET PORT Incredibly, every Nano-10 PLC has a single, built-in 10/100 Base-T Ethernet port that does everything that its bigger brother, the F-series PLCs are designed to do. You can easily connect the Nano-10 PLC to your network router, switch, or hub using the straight CAT-5 cable. When a connection is made, the yellow “Connection LED” on the RJ45 connector will light up, indicating that the PLC has been connected to the network router. Once connected to the network, the i-TRiLOGI pr ogramming software works instantaneously with the PLC, allowing remote programming and process monitori ng over the LAN or the Internet. In addition, the Ethernet facility at this port c an host web pages and Java applets so that users of the equipment can control/monitor their equipment using their web browser from anywhere. Before connecting the PLC’s Ethernet port, you should confi gure it using the configur ation tool that is now built into the 6.3x or higher version of the i- TRiLOGI programming software. Previously, a standalone Ethernet Configuration program was required to setup the basic and advanced Ethernet, ADC, and RTC (Real Time Clock) options. This standalone version is still available and more information on this program, including where to download it, is available at the end of section 2.1 ( 2.14 Standalone Version of Ethernet Configuration Software ). Now these settings can be confi gured directly from the TRiLOGI programming software, as described next. 2.1 Configuring The Ethernet Port This tool, which is located in the "Controller" Menu of TRiLOGI, allows you to configure the Ethernet Port and ADC/RTC calibration settings on a TRi's PLC with built-in Ethernet port, such as the Nano-10 and F- series PLCs. When the “Ethernet & ADC Calibration” is selected from the “Controller” menu, you will see the following screen: The configuration program communicates with the PLC the same way as i-TRiLOGI, which is either through the TLServer software + serial port, or directly through the Ethernet Fserver port. If your i-TRiLOGI is not yet connected to the TLServer software or directly to the PLC’s built-in F- Server, then you will be prompted to login to the PLC’s server. (See the i-TRiLOGI Programmers Reference Manual for more information on this) Figure 2.1.2 Figure 2.1.1

32. Chapter 2 Ethernet Port 2-5 Figure 2.1.4 2.1.5 No. of Connections (FServer/ Modbus TCP) The Nano-10 CPU assigns sufficient memory to s upport up to a maximum of 6 simultaneous TCP/IP connections to the FServer and Modbus/TCP server. By default, each server is assigned a maximum of 3 connections each. However, to improve flexibility, you can re-assign the mix of maximum connections between the two servers as long as the number of Modbus/TCP connections does not exceed 5 and the number of FServer connections does not exceed 4. Th is means that you can define 1 to 4 FServer connections and 2 to 5 Modbus/TCP connections. W hen you change the number in one box the other box will change automatically so that the total number of possible connections remains at 6. 2.1.6 FServer Port No. The Port number is a 16-bit integer (range 0 to 65535) that needs to be specified on top of the IP address when accessing the FServer from across the network . The default value is 9080, which is the same default value used by the TLServer and TRiLOGI cli ent software. Please see the TRiLOGI programmer’s manual for an explanation of the use of the port num ber. One reason why you may want to change the port number is to use the “port fo rwarding” capability of an NAT router so that different Nano-10 or F- series PLCs may be accessible from the Internet usi ng the same public IP address of the router but with different port numbers. 2.1.7 Modbus/TCP Secondary Port No. According to MODBUS.ORG specifications, all M odbus/TCP servers must listen on port #502. However, Modbus.org also permits the device to be assigned a different secondary port number. As such, the Modbus/TCP server will always listen on port #502 fo r all of its connections by default. Should you choose to define a secondary port number, then the Modbus/TCP server will only listen on port 502 on one connection while the additional connections (1 to a maximum of 4) would be listening on the secondary port. You may specify any port number between 1024 and 65535 (except for the port number already used by the FServer) to be the secondary port number. Pl ease see the TRiLOGI programmer’s manual for an explanation of the use of the port number. One r eason why you may want to change the port number is to use the “port forwarding” capability of an NAT router so that different Nano-10 or F-series PLCs may

40. Chapter 2 Ethernet Port 2-13 5. Sample Configuration Figure 2.8.5 Here is an example of a c onfiguration that will work if your PLC has an IP address of 192.168.1.xxx, where xxx is anything from 1-255 except 2. Once you have set the IP address and Subnet mask, you can click on OK and then click on OK again to close the “Local Area Connection Properties” window shown in Figure 2.8.5 Now your Ethernet port has been configured and you can try to connect to your PLC from TRiLOGI using your PLCs IP address and port number. Note: 1. Connecting the PC’s Ethernet port directly to the PLC only establishes a private network connection between the two devices. That is to say, the PLC connected this way is ONLY accessible to this PC. Even if the PC is connec ted to a LAN (e.g. via Wi-Fi connection), the PLC connected to this PC via direct Ethernet connec tion will not be accessible by any other devices on the same LAN. and the PLC will not be able to open network connection to any other devices beyond the PC that it is connect to this way. 2. Sometimes the PC that is connected directly to the PLC via Direct Ethernet Connection may lose its Internet connection via Wi-Fi. This is because the O/S thinks t hat the direct Ethernet connection to the PLC is a real network connecti on and attempt to route TCP/IP packets through it. That will result in a connection failure. If th is occurs and you need to access the Internet, then please temporarily remove the Ethernet cable from the PLC and the PC should then be able to access the Internet again. Windows 7 Ethernet Configuration 1. Open the Network Window . The first thing you will need to do is open the Network window from the “Start” menu by selecting “N etwork", as shown here:

59. Chapter 2 Ethernet Port 2-32 2.9 Installing a Web Page or Web Applet into the Nano-10 PLC using FileZilla With the Nano-10 PLC it is possible to transfer a custom web page to the Nano-10’s built-in web server using the Filezilla FTP transfer program, which is available for free download at the following link: http://filezilla-project.org The Nano-10 PLC comes prepackaged with two ready-t o-use web pages installed in its web server. These web pages run on HTML and JavaScript code so they are accessible from standard browsers such as Internet Explorer, Firefox, and Safari. However, the HTML files are designed to be easily modified by anyone, even if you don’ t have any programming experience. The purpose is to be able to easily customize the web page layout for your spec ific application without having to worry about the control and monitoring portion, which is already progr ammed. More information can be found on this in section ( 2.10 Accessing and Customizing the HTML W eb Interface for Control and Monitoring ). The purpose of this section is to learn how to install t he Filezilla FTP transfer program and how to use it to transfer the required files. 2.9.1 Installing the FileZilla program Once you have gone to the web page from the above link, you will need to select the client version to download. Then you need to select the software versi on for your computers platform, typically the Windows version, and download it to your computer. This is the installation setup file, which you will need to execute after it has downloaded. Please perform a default installation by following the installation steps. 2.9.2 Configuring FileZilla to Communicate with the Nano-10 After installing the FileZilla client, please open it from the start menu or desktop icon and then go to the “File” menu and select “Site Manager”. The following menu will then pop up: Figure 2.9.1 Under the default “General” tab, you will need to enter the Host IP address and configure the “Logontype”. The Host should be the IP address of the Nano-10 PLC (default IP is shown in the example). The Port can be left blank and the Servertype can be left as the default as shown. The Logontype should be set to Normal and the User and Password should be set to the same as for the login to the Nano- 10 Server in the Ethernet port. Nothing else needs to be configured in this area. Next go to the “Transfer settings” tab.

63. Chapter 2 Ethernet Port 2-36 PLC. All data, such as the directory informati on and content of any files to be transferred between FileZilla and the PLC will need to go through the data channel. They are two possible ways of establishing this data channel, one is called the “Act ive Transfer” and the other is known as “Passive Transfer”. FileZilla is able to operate in either transfer mode, but the PLC FTP Server can only operate in “Active Transfer” mode. “Act ive Transfer” mode requires that the c lient (FileZilla) provides a listening socket for the server (PLC) and the se rver (PLC) will then try to connect to this socket to establish the data connection. So if the FileZilla program si ts behind the software firewall and no exception has been configured, then the PLC FTP Server will not be able to make a connection to the FileZilla data socket because it is blocked by the firewall and the connection will therefore fail. This explains why FileZilla seemingly able to connect to the PLC but ye t is unable to send any data or list the directory – because there is no data channel connection for it to do so. However, sometimes the problem could persist after disabling all firewalls and in that case the only option is to revert to an older version of File Zilla, and then transfer the files by doing a right-click download or right-click upload (if drag and drop doesn't work). You can do this as follows : a. Download the FileZilla client version 3.1.5.1 from http://www.oldapps.com/filezilla.php b. Remove the current version and then install version 3.1.5.1 c. Connect to the PLC d. There should be two directories (same as always) : local site (your PC) and remote site (Nano-10). You should see your files in the Nano-10 directory. e. Open the folder in the local site that you would like to save the Nano-10 files to. f. Right click on a file in the Nano-10 direct ory such as 0.HTM and select download. You should see the file in the folder on your local site. g. To move files from the PC to the Nano-10, open the folder in the local site where the file is located and right click it to select upload. You should see it in the Nano-10 or you will be asked to overwrite it if the same file name is there already. 2) FileZilla Can Connect The First Time But Could Not Re-connect After Time-Out FileZilla is normally setup to time out after 1 mi nutes of no activity. However, Since the PLC’s FTP server can only handle a single FTP connection at a time , it is good to avoid letting FileZilla time out due to no activity. This is because when FileZilla time s out it cutoff the connection to the PLC. But if for whatever reason the PLC were to miss the disc onnection information it will be left in a "half-open" state and will not be able to accept a new connecti on. When this happens and if you try to reconnect to the PLC again after the connection has been dropped by FileZilla, you will most likely be unable to connect to the PLC again until after the PLC time out its FTP connection due to no activity. The only quick fix is to power-on reset the PLC so that it starts up fresh and can a ccept new connection again. You can set the FileZilla timeout settings to a la rger number (e.g. 300 seconds) using the FileZilla’s “Edit->Settings” menu item so that it will not time -out automatically too qui ckly. You should always select "disconnect" after a file transfer to properly close the connection and then the PLC will be properly disconnected and is ready to accept new connection. 3) Problem Using FileZilla To Transfer Files to Multiple PLCs Configured To The Same Default IP Address Even Though Only One PLC Is Connected To The Router At A Time. When you connect FileZilla to a PLC with a particula r IP address (e.g. 192.168.1.5) for the first time, Windows will memorize the MAC-ID address of that PL C and associate it with this IP address in its “ARP cache” (ARP = Address Resolution Protocol ). So when you power off one PLC and immediately

115. Chapter 10 Stepper Motor Control 10-5 The r parameter specifies which internal relay will be activated once the motor has moved to its new position. This relay would be cleared when the STEPMOVEABS command is executed in case it was already activated. Example: STEPMOVEABS 1,500,101 ‘ Stepper #1 to move fwd 500 steps ‘ from home and turn on relay 101 10.3.5 Demo Program for Stepper Motor Control A demo program for programming the Stepper Motor Controller and Driver: “StepperMotor.PC6” can be found in the Nano10Samples.zip file which can be downloaded from: http://www.tri-plc.com/trilogi/Nano10Samples.zip

136. Chapter 14 Serial Communications 14-4 14.4 Support of Multiple Communication Protocols The Nano-10 PLC is a real communication wizard! It has been designed to understand and speak many different types of serial communication protoc ols, some of which are extremely widely used de facto industry standards, as follows: a) NATIVE HOST LINK COMMAND b) MODBUS ASCII (Trademark of Modbus.org) c) MODBUS RTU* (Trademark of Modbus.org) d) OMRON C20H protocols. (Trademark of Omron Corp of Japan) The command and response formats of the “NATIVE” pr otocols are described in detail in Chapter 15 and 16. The other protocols and their address mapping to the Nano-10 PLC are described in Section 14.7. Each COMM port can communicate using the same or different protocols, independent of the other. The most wonderful feature of Nano-10 PLCs is that t he support of all the above-mentioned protocols can be fully automatic and totally transparent to the user s. There is no DIPswitch to set and no special configuration software to run to configure the port for a specific communication protocol. The following describes how the automatic prot ocol recognition scheme works: 1. When the PLC is powered ON, the COMM1 port is set to the “AUTO” mode, which means that they are open-minded and listen to all serial data coming through the COMM ports. The CPU tries to determine if the serial data conforms to a certain protocol and if so, the COMM mode is determined automatically. 2. Once the protocol is recogni zed, the CPU sets that COMM port to a specific COMM mode, which enables it to process and respond only to commands that conform to that protocol. Error detection data such as the “FCS”, “LRC” or CRC are computed accordingly which method is used to verify the integrity of the received commands . If errors are detected in the command, the CPU responds in accordance with the action s pecified in the respective protocols. 3. When the COMM port enters a specific COMM mode, it will regard commands of other protocol as errors and will not accept them. Hence, for example, if COMM #1 has received a valid MODBUS RTU command (which puts it in an “RTU” mode), it will no longer respond to TRiLOGI’s attempts to communicate with it using the “NATIVE” mode. You will receive a communication error if you try to use TRiLOGI to access a PLC COMM port that has just been communicating in other protocol modes. 4. To improve the flexibility of switch ing from one COMM mode to another, The Nano-10 incorporates a COMM mode self-reset timer such that a specific COMM mode will time out automatically and enters into “AUTO” mode afte r 10 seconds if no more commands are received from that COMM port. When a user wants to switch from one COMM mode to another, he/she often will be changing the serial connector from one device to another. During this time there is no data received by the COMM port, which present s an opportunity for it to reset its COMM mode. However, the surest way to reset the s pecific COMM mode is to cycle the power to the PLC so that its COMM port will be reset to “A UTO” mode and ready to communicate with any supported protocols. 5. If you wish to use the COMM port for serial data input only, you can use the SETPROTOCOL command to set the COMM port to NO PROTOCOL . This can prevent the PLC from erroneously treating some serial data as the header of an in coming communication protocol and respond to it automatically. The SETPROTOCOL command can also be used to set the PLC to a specific protocol. This may be desirable if the COMM port has a specific role and you do not want it to enter ot her modes by mistake.

22. Chapter 1 Installation Guide 1-10 This is because the process of backing up the shadow RAM to the flash memory as well as executing other user’s power failure interrupt service routine w ould require an execution time of at least tens of milliseconds. It is therefore very im portant for the power supply voltage to the PLC to gradually decrease to zero over several hundred milliseconds during power down. I.e. a nice power down voltage gradient is required. This ensures that the CPU has sufficient ti me before it loses its operating voltage required for it to properly backup the pseudo EEPROM data to the flash memory. If you simply cut off the DC voltage to the PLC (e.g . by disconnecting the power supply terminal to the PLC abruptly), then what could happen is that the PLC may only have time to erase the flash memory sector for backing up the pseudo EEPROM, but does not have enough time to backup the pseudo EEPROM data to the flash memory. The result coul d be loss of all the EEPROM data when the power is returned to the PLC. (You will know that the ba ckup area of the EEPROM has been erased but not re- written if all the EEPROM data reads only –1 upon power up). The additional diode and 470uF (or larger) capacitor c onnected to the PLC’s power supply input screw terminal as shown in Figure 1.4 (also shown bel ow) would also help to obtain a good voltage decay gradient during power down, and is therefore hi ghly recommended if you need to execute any power failure interrupt service routines. +24V DC Power Supply +24V 0V Surge suppressor (Recommended) 1N4007 470uF 50V To ensure that the power supply provides a slow voltage gradient during power down, the power switch must be connected to the AC side of the power supply instead of to the DC side of the power supply. All industrial DC power supplies usually have large filter ing capacitors at the DC output, which means that the power supply to the load would normally decreas e slowly when power supply to the AC side has been cut. Note: if the user intends to execute the SAVE_ EEP or SAVE_EEP$ commands during power failure, then these commands must be executed BEFORE ex ecuting the SETSYSTEM 252, 0 command so that they can be backed up to the flash memory. FRAMRTC Based Non Volatile Memory The optional FRAMRTC module provides a large arra y of state-of-the-art Fe rromagnetic RAM (FRAM) memory to the Nano-10 PLC, and these FRAM memori es will be used as primary storage for the user’s EEPROM data. With FRAMRTC the PLC would hav e a total of 11,000 words of all FRAM-based EEPROM memory. These 11000 words of EEPROM data c an also be used to store up to 549 strings of 40 characters per string. Since these FRAM are truly non-volatile and they do not have to be backed up to any flash memory, the data are therefore not easily corrupt ed by any unplanned power disruptions. Also these FRAM memories allow an unlimited number of read and write cycles at full speed and they are thus much better than the traditional “EEPROM” memo ry on the M-series PLC. However, for legacy reasons we are still calling them EEPROM memory si nce they are to be accessed using the TBASIC’s SAVE_EEP, LOAD_EEP, SAVE_EEP$ and LOAD_EEP$ commands.

30. Chapter 2 Ethernet Port 2-3 2.1.1 IP Address One of the most important Ethernet parameters that you must define here is the “IP Address” field. By default, every Nano-10 PLC is shipped with the static IP address: “192.168.1.5”. You will need to assign the PLC’s with an IP address that is unique on your network and yet is accessible from your PC. If you are on a company network, then you must consult your company’s system adminis trator to assign you a useable IP address. However, if your PC is connected to a small loca l area network, then most likely you will have a LAN IP address of 192.168.XXX.YYY. For proper networking, you should set the PLC’s IP address to “192.168.XXX.ZZZ”. i.e. The first three numbers shoul d match each other. The fourth number (ZZZ) should be an IP address that is not used by any other devices on your network. Note that majority of small LANs are built using a network router that a ssigns dynamic IP addresses (called DHCP server) to the PC. You should enter the administrator page of the router and define the range of DHCP for use by the PCs and then you may a ssign the PLC with any IP address that is outside of the DHCP range. E.g. If y ou define the DHCP address range to be 192.168.1.100 to 192.168.1.150, then you may assign the PLC with any IP address between 192.168.1.2 to 192.168.99 (Usually the router itself would have the IP addre ss 192.168.1.1 so that address is not available) and also between 192.168.151 to 192.168.1.254 (again making sure that 192.168.1.254 is not al ready used by your router). 2.1.2 GateWay IP Addr The Gateway IP address lets the Nano-10 PLC communi cate with other LAN segments or connect to the Internet. The gateway address is usually the local IP address of the router where the PLC is connected. For small local networks with no plan for connection to the Internet, the Gateway IP Address is not needed and can be set to 0.0.0.0. But if you plan to use the FServer’s email capability then you must fill in the correct Gateway IP Address . Ask your system administrator if you have any question about this. 2.1.3 SMTP Server IP Address The SMTP (Simple Mail Transport Protocol) Server field lets you define the IP addr ess of the email server that the PLC can use to send out emails from user’s program (please see section 2.4.2 for more details on how to program the PLC to send emails). This is t he same SMTP server that your normal email client software such as Thunderbird or MS Outlook uses to send out email. You can ask your Internet Service Provider (ISP) for the IP address of their SMTP server. The ISP usually provides the SMTP server in domain name form (such as “mail.sb cglobal.net”), but you s hould also be able to request the numerical IP address of the SMTP server from the ISP. For Windows XP or Vista users, you can resolve t he IP address as follows: First, launch the “Command Prompt” window. Then enter the command nslookup <s mtpserver name>” to get the IP address. An example is shown below where the IP address of ma il.sbcglobal.net is reso lved to the IP address: “207.115.36.120”:

52. Chapter 2 Ethernet Port 2-25 You can use either the Ethernet Configuration Tool mentioned in Section 2.1 , or the standalone F-series Ethernet Configuration program mentioned in Section 2.1.14 to define a list of “Trusted IP” addresses. Please click on the “Advanced” button on the “Basic Configuration screen” (as shown in Figure 2.4.1) and you should see the following Ad vanced Configuration screen. Figure 2.4.1 The first thing you should do is to click on the “Retrieve Parameters from PLC” so that you can capture a copy of the current configuration in the PLC and you can then modify selectively. You can define a list of up to 6 “Trusted IP” addresses in this panel. To enable the Modbus/TCP Trusted IP, click on the “Yes” button next to the “Modbus/TCP Use Trusted IP”. Note: The FServer can also be enabled to only allow connections from devices that match one of the “Trusted IP” defined in this panel. This is on top of the username/password login sequence that can be enabled/disabled from the Basic Configuration screen. In other words, you can choose either security method to access the FServer or implement both security methods at the same time. After you have defined the list of trusted IP addresses and checked the “Use Trusted IP” radio button, click on the “Save Parameters to PLC” to save your data to the PLC’s non-volatile memory. When “MODBUS/TCP Use Trusted IP” is enabled, it means that only TCP/IP packets that come from a client whose IP address matches one of the “T rusted IP” would be allowed connection to the MODBUS/TCP server. 2.5.3 Making A Modbus/TCP Client Conn ection to Other Modbus/TCP Server By using the “Network Services” commands described in Section 2.4, it is unbelievably easy for the Nano-10 PLC to be used as a MODBUS/TCP client to access any industrial control or HVAC device and sensors that support a MODBUS/TCP se rver. Best of all, you can do it without learning any specifics of TCP/IP programming! To open a client socket and connect to a Modbus/TCP Server that is listening on port 502 (default Modbus/TCP port), you only need to send the command tags <MBTCPCONNECT xxx.xxx.xxx.xxx:502> to the CPU via virtual COMM port #4. E.g. PRINT #4 "<MBTCPCONNECT 192.168.1.105:502>" If connection is successful, the system will return the string “<CONNECTED>” on virtual comm. port #4, which you can check with the INPUT$(4) command.

186. Chapter 17 I2C Communication 17-7 same upper address byte (bit 8 to bit 15). E.g. Address &HA011 and &HA0FF are in the same page. But address &HA0FF and &HA100 are NOT in the same page even though t hey are adjacent memory location. So you have to keep the page boundary in mind when performing a page write. The following picture depict the page write command: Example. To write 4 byte of data XX to the EEPROM address 19876 to 19879 (&H4DA4) in first 64K bank, you need to do the following: DM[11] = &H4D DM[12] = &HA4 DM[13] = xx ‘ your data byte 1 DM[14] = yy ‘ your data byte 2 DM[15] = zz ‘ your data byte 3 DM[16] = ww ‘ your data byte 4 I2C_WRITE &H50, 11, 6 ‘ write 6 bytes of data from DM[11] to DM[16] I2C_STOP ‘ necessary to end the write cycles. The data contained in DM[13] to DM[16] will be wr itten to the EEPROM address &H4DA4 to &H4DA7. 17.2.6 Random Read From M24M01 EEPROM

187. Chapter 17 I2C Communication 17-8 Reading data from a random EEPROM location is slight ly more involved than writing. You need to first use the I2C_WRITE command to set the memory point er inside the M24M01 to point to the memory address location, then immediately followed by I2 C_READ command to read one or more data bytes starting from the pointer address. After every byte is read the internal pointer will be incremented automatically and point to the next address byte, th is allows you to read a large number of data sequentially from the EEPROM with minimum overhead. Th is can be very useful for “data dump” to the TLServer to rapidly upload the collected data Example. To Read 100 bytes from EEPROM addre ss 12345 (&H3039) to 12444 in first 64K bank, you need to do the following: DM[11] = &H30 DM[12] = &H39 I2C_WRITE &H50, 11, 2 ‘ write 2 bytes of address in DM[11] to DM[12] I2C_READ &H50,21,100 ‘ read 100 bytes data into DM[21] to DM[120] The returned data will be stored in the DM[21] to DM[120]. Note: There is no need to execute the I2C_STOP command after the I2C_READ since the I2C_READ command automatically sends a STOP bi t after the last byte is read. 17.2.7 Sequential Read From M24M01 EEPROM Note that after a random read, the memory pointer inside the M24M01 will be pointed to the next address following the very last read memory address. This means that you could repeatedly execute only the I2C_READ command to read more data sequentially from the EEPROM memory. Example: DM[11] = &H30 DM[12] = &H39 I2C_WRITE &H50, 11, 2 ‘ write 2 bytes of address in DM[11] to DM[12] FOR I = 1 to 10 I2C_READ &H50,21,100 ‘ read 100 bytes data into DM[21] to DM[120] CALL Datadump ‘ call some subroutine to upload data to server. NEXT In the above example, the I2C_READ command was ex ecuted 10 times, each time 100 data point is read into DM[21] to DM[120] and the program then calls another custom function to dump these data points to the server. The loop then continue for another 9 times, and hence altogether 1000 data points from address 12345 to 13344 can be uploaded to the server in a simple FOR..NEXT loop.

190. Chapter 18 Extended File System 18-3 Advantage of Data Uploading 1. Although it is possible to direct ly access the PLC’s internal web se rver to download the data file it has created, this require active action by the us er and to ensure that the data are retrieved before the file is full and has to be deleted by t he PLC to create space to log new data. 2. By programming the PLC to upload the data periodi cally the PLC can delete the file after it has successfully uploaded the data file to free up space to accept new data. In other words the PLC will never run out of data space to log data si nce it can store the l ogged files on any server including the Cloud! 3. To directly access the file stored on the PLC from outside of t he LAN, you will need to setup the router or firewall to “forward” the PLC’s server port (e.g. 9080) to the PLC. If you have multiple PLCs logging data, then each PLC will need to have a different port number in order to properly forward the port. This not only complicates the se tup, but also is often frown upon by System Administrator and may not even be permitted by the corporate network security policy. 4. The PLC is designed to upload data to any web server via FTP passive mode by providing the login username and password. Using FTP passi ve mode allows the PLC to open a network connection to an external web-server to upload a file and then close the connection immediately. It does not require opening a port on your router fi rewall to permit external access to the PLC from the Internet. Hence there is no complic ated router setup involved as there is no port forwarding required. It also eliminates the secu rity risk from someone trying to take control of the PLC from outside of your LAN and is genera lly much more acceptable to the System Administrator. 5. If you have multiple PLCs in use, you c an program each PLC to upload data to a different directory or append a different file name prefix, or to different servers, and once programmed all PLCs will happily log data unattended indefinitely! 18.2 File Structure and File Naming of The Extended File System All of the information in chapter s 2.9 and 2.10 of this manual regardi ng the built-in 60K bytes of web server space will apply to the extended 256K bytes of data file storage on the FRAM-RTC-256, with exception on the naming scheme which will be explained below: 1. All files in the Extended File space can only use the file name “Zxxx.yyy”. 2. The xxx part of the beginning of the filename is a 3 digit decimal number which can be any number from 000 to 127. 3. The ‘yyy’ part of the file name is the “ext ension”, and only the following MIME extension are accepted by the PLC: HTM, JPG, GIF, CSS, JS, BIN, TXT, JAR, ZIP, XLS Any other extension names will be replaced with “ ???”. The MIME extension are respected by the web browser when you download a file from the bu ilt-in web server so you should always only store files with one of the above extension. 4. The file space is divided into 128 “slots” with each “slot” occupying 2K bytes. The file “Z000.yyy” occupies the first slot, “Z001.yyy” occupies the 2 nd slot .., and the file “Z127.yyy” the last 2K slot.

206. Chapter 19 Using PLC As a Modbus/TCP Gateway 19-3 SETSYSTEM 2, n Where n = number of retries for each COMM port as follow: Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Ethernet COMM3 COMM2 COMM1 Thus each COMM port could be configured to re-a ttempt to send the command from 0 to 3 times if it does not get a response from a Modbus RTU slave. The default settings for n = &HAA (or 10101010 binar y) which means each COMM port as well as the Ethernet port will retry twice (making a total of 3 attempts). E.g. If you run SETSYSTEM 2, 0 the gateway will not resend the RTU command on any of its COMM port if does not receive a response on the first attempt. This can help to reduce the CPU scan time if a Modbus RTC slave does not respond. 4) We strongly recommend that the serial port #n that is to be used as a gateway serial port be configured to be “No protocol” by running the SET PROTOCOL n, 10 statement once. This is to ensure that the serial data returned from the RT U slaves will never be interpreted wrongly by the master PLC as incoming commands, which could lead to errors. (The same advise applies to PLC programs that use the serial port to run READMODBUS, WRIT EMODBUS, READMB2 and WRITEMB2 commands). 19.5 Modbus/TCP Gateway Sample Program Please download the following self-explanatory I-TRiL OGI sample program that demonstrates the new Modbus/TCP Gateway capability via any of the selected COMM port: http://www.tri-plc.com/trilogi/modbusgateway.zip

83. Chapter 4 Timers, Counters & Sequencers 4-5 As described in section 1.6.2, the backup process only occurs when the PLC is reset, rebooted or when the SETSYSTEM 252, 0 command has been executed. T herefore, if you want the new SVs to be permanently stored in the PLC you will have to ei ther run the SETSYSTEM 252, 0 command once, or perform a software reset to backup these new data to the flash memory so that the changes can become permanent. 4.3.5 Controlling a Timer or Counter in a Custom Function You can activate a timer or a counter directly from within a custom function simply by assigning their present value counter to a desired value. E.g. To start a 50 seconds timer: TIMERPV[2] = 500 ‘ Timer #2 will time out 50.0 seconds later. E.g. To decrement a counter or a sequencer: CTRPV[10] = CTRPV[10] - 1 ‘ Counter #10 is decremented by 1. 4.4 Programming Sequencers on Ladder Logic 4.4.1 Introduction TRiLOGI Version 6.xx supports eight sequencers of 32 steps each. Each sequencer uses one of the first eight counters (Counter #1 to Counter #8) as its step c ounter. Any one or all of the first eight counters can be used as sequencers "Seq1" to "Seq8". To use a sequencer, first define the sequencer name in the Counter table by pressing the <F2> key and scroll to the Counter Table. Any counter to be used by the sequencer can only assume label names "Seq1" to "Seq8" corresponding to the counter numbers. For e.g. if Sequencer #5 is to be used, Counter #5 must be defined as "Seq5". Next, enter the last step number for the program sequence in the "Value" column of the table. A circuit that uses the special function "Advanc e Sequencer" [AVSeq] will need to be constructed. The first time the execution condition for the [AVs eq] function goes from OFF to ON, the designated sequencer will go from inactive to step 1. Subs equent changes of the sequencer's execution condition from OFF to ON will advance (increment) the sequencer by one step. This operation is actually identical to the [UPCtr] instruction. The upper limit of the step counter is determined by the "Set Value" ( SV) defined in the Counter table. When the SV is reached, the next advanc ement of sequencer will cause it to overflow to step 0. At this time, the sequencer's contact will tu rn ON until the next increment of the sequencer. This contact can be used to indicate that a program has comple ted one cycle and is ready for a new cycle. Accessing individual steps of the sequencer is ex tremely simple when programming with TRiLOGI. Simply create a "contact" (NC or NO) in ladder edi t mode. When the I/O window pops up for you to pick a label, scroll to the "Special Bits" table as follow:

85. Chapter 4 Timers, Counters & Sequencers 4-7 4.4.5 Reversing a Sequencer Although not available as a unique special f unction, a sequencer may be stepped backward (by decrementing its step-counter) us ing the [DNctr] command on the c ounter that has been defined as a sequencer. This is useful for creating a reversible sequencer or for replacing a reversible "drum" controller. 4.4.6 Program Example Assume that we wish to create a running light pattern which turns on the LED of Outputs 1 to 4 one at a time every second in the following order: LED1, LE D2, LED3, LED4, LED4, LED3, LED2, LED1, all LED OFF and then restart the cycle again. This can be eas ily accomplished with the program shown in Figure 4.5. The 1.0s clock pulse bit will advance (increment ) Sequencer #2 by one step every second. Sequencer 2 should be defined with Set Value = 8. Each step of the sequencer is used as a normally open contact to turn on the desired LED for the step. A "Stop" i nput resets the sequencer asynchronously. When the sequencer counts to eight, it will become Step 0. Sinc e none of the LEDs are turned ON by Step 0, all LEDs will be OFF. Figure 4.5 4.5 Programming Sequencers in Custom Function You can change the current step of Sequencer easily from within a Custom Function by changing the present value of their equivalent c ounter. E.g. Sequencer #3 is the same as Counter #3, thus if you wish to assign Sequencer #3 to Step 10, you can achieve it as follows: CTRPV[3] = 10

35. Chapter 2 Ethernet Port 2-8 2.2 Connecting Ethernet to the PLC Introduction All FMD PLCs can connect to the PC r unning TRiLOGI many ways as follows: a) Wired connection to a router that the PC is also connected to (PC connection can be wired or wireless). b) Direct connection to the PCs wired Ethernet port via crossover cable c) Wireless connection to a wireless router if t he PLC is connected to a wireless bridge (adapter) Only the first two options, which ar e most common, will be described here. 2.2.1 Connecting the PLC to a Local Area Network In a typical local area network (LAN) there would be one router (wired or both wired and wireless) that the network devices connect to, one modem that provides Internet to the router, and the devices connected to the router (such as the PLC and PC). Before You Begin The first thing you need to do is configure the network settings in the PLC to match those of the LAN. This is typically done as follows: 1) Find out what your routers gateway address is (typically 192.168.1.1 or 192.168.0.1) and what static IP addresses are free to use with your PLC. NOTE: if the routers gateway address is “192. 168.1.1”, the default PLC IP address (192.168.1.5) will most likely work unless it is already used by another device on the same network. If it is free to use, the next two steps can be skipped as the PLC will already be able to connect to the LAN. 2) Connect to the PLCs serial port fr om the PC with TRiLOGI and TLServer. 3) Edit the PLC network settings using the Ethernet & ADC Configuration tool from the “Controller” menu in TRiLOGI. Only the IP address is necessary to configure for basic connection to the LAN. Please refer to the Quick Connection guide in appendix 1 of the i-TRiLOGI Programmers Reference Manual . to connect the PLC to your PC via serial port. Please refer to section 2.1 of this manual for more detailed in formation on network configuration. Network Wiring You will likely already have a network av ailable that consists of an Inter net modem that provides Internet to a wired or wireless router, which has at least one PC connected to it. In this case, all that needs to be done is connect the PLC to the router with standard Ethernet cable. The final network configuration will likely rese mble the below simple network diagram.

71. Chapter 2 Ethernet Port 2-44 Changing the Data Memory Labels and Fields Color: Only the background color for the Data Memory labels can be changed in the user level 1 user modification area, but not the Data Memory field (w here the actual data is shown) background color or the Data Memory label/field text color. Data Memory Label Background Color: DMlabelBgColor = '#efffff' The Data Memory label text color is defined by <style>body{} at the top of the 0.HTM file. The Data Memory field text and background colors can be changed in the level 2 user modification area. 2.10.4 Level 2 User Modifications The level 1 user modification area allowed you to quickly and easily customiz e the layout of the interactive objects as well as their main color, size, and name properties. However, the level 2 user modification area allows you to go further and customize some style details, such as: font, text size, more colors, and other layout/style properties. We reco mmend that only expert HTML programmers make any changes to this area, but even users with basic HTML knowledge should be able to make some changes by trial and error. However, we do not provide suppor t for making changes to this area and we advise that back-up copies are kept in case you find that t he web page is not working and you may need to refer to the original copy.

93. Chapter 5 Analog Inputs 5-7 positive voltage (+5 to +30V) and the other pin to 0V, and the signal pin will output a voltage that is directly proportional to the ambient temperature in o F. The output voltage is 10mV per degree F. So at room temperature of 72 degrees F, the devic e will output a voltage of 72 x 0.01 = 0.72V. If you connect this to the PLC’s analog input, you can obtai n the temperature in degree F or degree C using the formula: F = ADC(1)*500/4096 ‘ in degree F OR C = (F – 32)*5/9 ‘ in degree C Although another part number LM35 can output temperatur e in 10mV per degree C, the output falls into even lower ADC range for ambient temperature m easurement since the same 72 degree F is only 22 degree C, which means LM35 only outputs 22 x 0.01 = 0.22V. Hence for better accuracy and resolution we recommend using LM34 instead of LM35 and if need be then convert it to degree C using TBASIC. Another advantage for using LM34 instead of LM 35 is that you can measure down to 0 o F (-17 degree C) without using a negative voltage source as shown in the circuit on the right in Figure 5.5. 5.3.3 Using Thermocouple Thermocouples are very rugged devices that are widel y used in the industry because of their stability, accuracy, and wide functional temperature range. They are commonly used in measuring temperature in ovens that may go up to several hundred degrees C. However, thermocouple output signals ar e in the range of tens of microvol ts to mille-volts, which is too small to be measured by the Nano-10’s analog input di rectly. You will need a “signal conditioner” that can amplify the thermocouple output to 0-5V, whic h can then be connected to the PLC’s analog input. 5.3.4 Using PT100 Temperature Sensor PT100 is a positive temperature coefficient thermistor that is made from platinum. It has the advantage of being very stable and highly accurate. It is usually connected to a signal conditioner in a balanced bridge configuration and the signal conditioner will convert temperature changes to 0-5V output for the PLC. 5.4 Calibration of ADC & Moving Average Definition The ADC on the Nano-10 are factory-calibrated such t hat a voltage of 2.500V should return a value of 2048 when read by the ADC(n) function. However, if there is a need to re-calibrate the ADC you can follow the procedure outlined below. To perform calibration of an ADC channel, you need to supply a precise DC voltage to the ADC channel, and then check the analog readings obtained via the A DC(n) function and compare it to the expected value. If there is an error, you can apply a correction factor to it. To perform the ADC calibration, you would need to us e the “Ethernet Configur ation Tool” mentioned in Chapter 2.1. Click on the “Adv anced” button on the Basic Confi guration screen and open the “Advanced Configuration” screen. The bottom half of the screen contains ADC and DAC calib ration constants that you can enter and transfer to the PLC, as shown below:

205. Chapter 19 Using PLC As a Modbus/TCP Gateway 19-2 packet back to the client. The PLC will not send any RTU command out of the gateway serial port. This means that the client can access the mast er PLC’s own register as per normal. However, if the client send a Modbus/TCP packet with a different ID from that of the gateway PLC’s ID, then the gateway PLC will translate the command in to a Modbus RTU command and send it out of the gateway serial port #n defined by the “SETSYSTEM 12, n” statement. The PLC will also wait for a response from the RTU slave via the gateway serial port, and if it does re ceive a response it will translate it into Modbus/TCP response packet and return to the client. Note: 1) If the Modbus/RTU slave being addressed does not respond to the RTU command, then the gateway PLC will wait till time-out (defaul t is about 150ms) and then resend the Modbus RTU command and wait for a response again. By defaul t the gateway PLC will repeat this procedure twice and if it still doesn’t receive a respons e after repeated attempts, it will send back a “TARGET DEVICE FAILED TO RESPOND” error pa cket back to the Modbus/TCP client. (i.e. It will set the 7 th bit of the function code to “1” and send back an exception code “0B” hex). 2) The CPU firmware is designed to handle only one Modbus gateway translation for each Modbus/TCP connection per ladder logic scan. This is to ensure that the CPU is not completely bogged down by its Modbus gateway job and will hav e time to run its own program. If the Modbus/TCP clients attempt to overload the PLC with more requests than it can handle the PLC will frequently return “SLAVE DEVICE BUSY” error re sponse packets back to the client. (i.e. It will set the 7 th bit of the function code to “1” and send back an exception code “06”). 19.4 Fine-Tuning The Modbus/TCP Gateway Function It is important to know that every time the PLC runs a Modbus/TCP to Modbus RTU translation its own program scan time increases due to the need for the CP U to wait for a response from the slave Modbus RTU devices. The delay becomes much more pr onounced when a Modbus slave device fails to respond (e.g. not online). The system designer must therefor e take this into consideration when designing the system: 1) The Modbus/TCP client should not overload the Modbus gateway with unnecessarily frequent Modbus requests. Whenever the PLC report a “TARGET DEVICED FAILED TO RESPOND” function the client program should back off for a while before re-trying communication with the Modbus/RTU slaves again. 2) You can change the number of wait states the gateway will wait for a response from the Modbus/RTU slave by running: SETSYSTEM 1, w Where w = number of serial port wait states for each COMM port as follow: Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Ethernet COMM3 COMM2 COMM1 Thus each COMM port could be configured to wait fr om 0 to 3 wait states for a response. The default settings for w = &H55 (or 01010101 binary) which means each COMM port as well as the Ethernet port uses 1 wait state of about 150ms.. 3) You can change the number of retries (default = 2) the gateway will attempt to get a response from the Modbus RTU slave by running:

42. Chapter 2 Ethernet Port 2-15 Windows 8 Ethernet Configuration 1. Open the Network Window . The first thing you will need to do is open the Control Panel from the “Start” menu by right-clicking in the bottom left cor ner of the screen where the Start Menu is accessed (below left screenshot): 2. Open View Network Status and Tasks Window . Next you need to click on the "View network status and tasks" link under the "Network and Inter net" category (above-right screenshot), which will bring up the "Network and Sharing Center" window (below screenshot). 3. Click on the "Change Adapter Settings" Link . This will bring up the "Network Connections" window where you can configure the necessa ry network settings for the local adapter. Follow steps 2-5 in the Windows XP Ethernet Configuration section above to complete the setup, as it is the same process.

61. Chapter 2 Ethernet Port 2-34 To add FileZilla to the Windows firewall excepti on list, you will need to open the Windows firewall from your network settings configuration area. Then you will need to click on “Change settings”, which will open up a new window. You will need to go to the “Exc eptions” tab in the new window and look for FileZilla in the list of programs. If you see FileZilla in the list, then you will need to check the box beside it to add it to the exception list. Otherwise, you will need to manually add it to the list by clicking “Add program” and searching for FileZilla in its installation directory. Here is a picture of the Windows Firewall status window and the Change settings wi ndow with the Exceptions tab: Figure 2.9.4 2.9.3 Transferring and Retrieving F iles from the Nano-10 Web Server Now that you have a connection to the PLC’s web serv er and can view the directory listing, you should be able to see the three preloaded files: “0.HTM”, “2.HTM”, and “N.JS”. Downloading Files The first thing to do is download the preloaded files from the Nano-10 server and store them somewhere on your computer. To do this you will need to open up the folder on your computer that you want to store the files in. Then you can drag the files from the N ano-10 web server via FileZilla into your destination folder. It is best to make a copy of these files as a backup on your computer so that you have the original copies available in case you need them. Now you can make any necessary changes to the 0.HTM file and/or 2.HTM file (t his is explained further in section 2.10 ), but the N.JS file shouldn’t be changed unless you are very experienced with JavaScript. File Names Note that the filenames are impor tant and the N.JS file should not be renamed or it will not work. The 0.HTM file and 2.HTM can be renamed (outside of the PLC’s Web Server) with or without the “.HTM” extension, but there are limitations. There is a very simple, pre-confi gured file system in the Nano-10 web server that is implemented as follows: • Files can have the name “0” through “9” (one digit) or “A” through “M” (one character) • Files can have any extension (“.HTM” is used for the pre-loaded files), but only a few MIME types are respected. These incl ude HTM, JPG, GIF, CSS, JS, BI N, TXT, JAR. From firmware

137. Chapter 14 Serial Communications 14-5 Please refer to the TBASIC Programmer’s Refer ence manual for a detailed description of the SETPROTOCOL command. Note: If you fix a COMM port to a non-native, non-auto m ode, TRiLOGI will not be able to communicate with the PLC anymore. You may have to power-c ycle the PLC to reset the COMM mode. If you use the “1st.Scan” contact to activate the SETPROTOCOL command, then you will need to cycle the power to the PLC with Jumper J4 short ed to halt the execution of the SETPROTOCOL command. (Also remember that when the PLC is reset this way, its COMM1 will power up at default format of 38,400, 8,n,1 only so you will need to configure TLServer’s serial port to 38,400bps to communicate with it.) 14.5 Accessing the COMM Port from within TBASIC Besides responding automatically to specific comm unication protocols descri bed in section 14.5, the COMM #1 is fully accessible by the user progr am using the TBASIC commands: INPUT$, INCOMM, PRINT # and OUTCOMM. It is necessary to under stand how these commands interact with the operating system, as follow: When a COMM port receives serial data, the operating system of the Nano-10 autom atically stores them into a 256 bytes circular buffer so that user programs can retrieve them later. The serial data are buffered even if they are incoming commands of one of the supported protocol s described in section 14.5. In addition, processing of a recognized protocol command does not remove the characters from the serial buffer queue so these data are still visible to the user’s program. As long as the user-program retrieves the data befor e the 256-byte buffer is filled up, no data will be lost. If more than 256 bytes have been stored, the buffer wr aps around and the oldest data is overwritten first and so on. The following describes how INCO MM and INPUT$, PRINT # and OUTCOMM functions interact with the serial buffer: a) INCOMM (n) Every execution of the INCOMM(n) function remove s one character from the circular buffer. When no more data is available in the buffer this functi on returns a -1. The data removed by INCOMM will no longer be available for the INPUT$(1) command. b) INPUT$(n) When the INPUT$(1) function is ex ecuted, the CPU checks the COMM1 buffer to see if there is a byte with the value 13 (the ASCII CR character) which ac ts as a terminator for the string. If a string is present, all the characters that make up the st ring will be removed from the COMM1 buffer. If a completed string is not present, then the COMM1 buffer will not be affected, and INPUT$(1) returns an empty string. This ensures that before a complete string is received, the serial characters will not be lost because of the unsuccessful ex ecution of the INPUT$(1) function. c) INPUT$(n) in Blocking Mode INPUT$(n) is designed to be non-blocking and to return i mmediately – i.e. either it returns a complete string or it returns an empty string. This means that INPUT$(n) will not suspend the CPU and wait for a valid string from the COMM port. However, in real world communication very often you will need to send a command to a device and it takes a while for the device to be able to send back a response string.

101. Chapter 7 High Speed Counters 7-3 7.4 Interfacing to 5V type Quadrature Encoder If you have a choice, you should select an encoder t hat can produce 12V or 24V output pulses so that they can drive the inputs #1,2,3,4 directly. If you have a 5V ty pe of encoder only, then you need to add a transistor driver to interface to the PLC’s inputs. The simplest way is to use an IC driver ULN2003 connected as shown in Figure 7.2. T100MD1616+ Input #3 1 2 16 15 8 GND Input #4 5V Phase A 5V Phase B +5V 0V Encoder ULN2003A PLC’s 0V terminal Figure 7.2 Interfacing 5V type Rotary Encoder 1.1.1.1 Nano-10 PLC

103. Chapter 8 Frequency / Speed Measurement 8-1 8 FREQUENCY / SPEED MEASUREMENT The Nano-10 PLC provides a very straightforward means to measure the pulse width (of the ON cycle), the frequency, or the period of a rectangular-wave pulse-train arrivi ng at its Pulse Measurement ( PM ) inputs #1,2,3,4. (Which are mapped to digi tal inputs #1 to #4 – see Chapter 6). 8.1 Programming of PM Input 1) To use the PM input to measure pulse widt h or frequency, execute t he PMON statement ONCE to configure the relevant input to become a pul se measurement input. You usually put the PMON statement in the init custom function and execute it with a “1st.Scan” pulse. 2) Thereafter the pulse width (in μ s) or the pulse frequency (in Hz) can be easily obtained from the PULSEWIDTH(n) or PULSEFREQUENCY(n) functi ons. You can also obtain the pulse period (inverse of frequency) using the PULSEPERIOD function. E.g. A = PULSEWIDTH(1) B = PULSEPERIOD(1) C = PULSEFREQUNCY(1) 3) All PM inputs by default return the measured pul se width and pulse period in unit of microsecond. However, for those who desire better resolution, you can define PM #1 to #4 to return the measured pulse width and pulse period in 0.1 microsecond resolution by executing the following command once only during initialization: SETSYSTEM 20, 1 Once the above statement is executed, if PU SLEWIDTH(1) - PULSEWIDTH(4) returns the value 1234 it means the measured pulse width is 123.4 μ s . A sample program can also be found on y our i-TRiLOGI installation folder at: C:\TRiLOGI\TL6\usr\samples\PulseMeasurement.PC6

25. Chapter 1 Installation Guide 1-13 1.8 Real Time Clock The Nano-10 PLC has a built-in Real-Time clock (RTC ) that keeps track of the time and date and can be used to trigger time-based events readily. Howe ver, on the standard Nano-10 there is no battery- backup of the RTC. This means that when the Nano-10 is powered up the real time clock is set to the factory default date of 2000/ 1/1 and time at 0:00:00. On the other hand, if you have c onnected the Nano-10 PLC to the LAN, you can program the PLC to automatically access a time server on the Internet or on the local LAN upon power up. This means that the PLC is able to synchronize its time accurately to t hat of the atomic clock sour ce that the Internet Time Server’s are often based on. Th is technique is described in Section 2.5 FRAM-RTC As its name implies, the FRAM-RTC module adds a lithium battery-backed Real-Time Clock module to the Nano-10 PLC. The Nano-10 CPU automatically det ects the presence of the FRAM-RTC module and will set its built-in RTC using the battery-backed RTC data in the FRAM-RTC module. The FRAM-RTC therefore is useful to applications that are not connected to the LAN or the Internet (to set the RTC) but requires non-volatile RTC to control time-based events. When the FRAMRTC is present, the Nano-10 PLC also tries to take advantage of the FRAMRTC’s more accurate real-time clock by updating its internal RTC every hour when the seconds and minutes both become zero. This can be optionally disabled by using the SETSYSTEM command described in Chapter 12 . 1.9 CPU Status Indicators There is a single red LED indicator on Nano-10 board marked “PAUSE”. This indicator will light up for about 0.5 seconds during power-on. Thereafter it s hould go off. The PAUSE indicator will be turned ON if one of the following has occurred: 1. The PLC’s program is corrupted. 2. A PAUSE statement has been executed 3. The user halts the PLC by pressing the <P> key during On-Line Monitoring. 4. Jumper J4 is turned ON, which halts the program. 5. A run-time error has occurred. If this light is ON, please connect the host computer running i-TRiLOGI to the PLC and run the “On-Line Monitoring” program. You will be informed of the r eason that caused the PAUSE condition. Except for condition (1) and (4), you can release the PLC from the PAUSE state by clicking on the “Pause” button or by pressing the <P> key during “On-Line Monitoring”. If the PLC’s program is corrupted, then you must re-transfer your program to the PLC. If a run-time error has occurred the PLC will halt at the CusFn where the error took place. If the programmer now executes the “On-Line Monitoring” command in I-TRiLOGI, the cause of the run-time error and the CusFn where the error occurred w ill be reported on TRiLOGI screen. Although the Nano-10 PLC does not have built-in LCD port, you will still be abl e to view the virtual LCD display on the Online Monitoring/View Variable screen that displays the c ause of the runtime error and the function where it occurred. The TBASIC simulator captures many possible run-ti me errors including out-of-range values, but in the Nano-10, only a few most important run-time errors are reported. The remaining errors are ignored. The following are the few run-time errors t hat will be reported in the Nano-10 PLC:

111. Chapter 10 Stepper Motor Control 10-1 10 STEPPER MOTOR CONTROL 10.1 Technical Specifications: No. of Channels (control signal) 1 Max. Pulse Rate (pps) 10000 Continuous Current per phase 2A @24V DC Driver Breakdown Voltage +55V Velocity Profile (Defined by STEPSPEED) Trapezoidal -accelerate from 1/8 max pps to max pps. -decelerate from max pps to 1/8 max pps) Maximum number of steps 2 ~ 2 31 (= 2.1 x 10 9 ) TBASIC commands STEPSPEED, STEPM OVEABS, STEPCOUNTABS( ), STEPMOVE, STEPSTOP, STEPCOUNT( ) It is essential to understand the difference betw een a stepper motor “Controller” and a stepper motor “Driver”. A stepper motor “Driver” comprises the power electronics circuitry that provides the voltage, current, and phase rotation to the stepper motor coils. A stepper motor controller, on the other hand, only supply the direction and output a number of pulses to an external stepper motor driver to actually drive the stepper motor. Since the Nano-10 PLC only has two high speed digita l outputs, the PLC is only capable of acting as stepper motor controller to supply the direction and pulse control signals to an external stepper motor driver. 10.2 Nano-10 As Stepper Motor Controller When configured as a Stepper-Motor Controller, the PLC would generate the required number of "pulses" and sets the direction signal according to the defi ned acceleration and maximum pulsing rate specified by "STEPSPEED" and “STEPMOVE” commands. The "pulse" and “direction” outputs are not meant to be connected directly to the stepper motor. Instead, you will need a stepper motor "driver", which you can buy from the motor vendor. Depending on the power out put, the number of phases of the stepper motor, and whether you need micro-stepping, the driver can va ry in size and cost. Most stepper motor drivers have opto-isolated inputs which acc ept a direction signal and stepping- pulse signal from the "Stepper Motor Controller". In this case the F-Series PLC is the "Stepper Motor Controller" which will supply the required pulse and direction-select signals to the driver. Note that the digital output #1 automatically becomes the direct ion-select signals for the Stepper controller channels #1 and digital output #2 automatic ally becomes the pulse signal output when the stepper controller is being used. The direction pin is turned ON when the motor moves in the negative direction and turned OFF when the stepper motor mo ves in the positive direction. The STEPMOVEABS command makes it extremely simple to position the motor at an absolute location, while the STEPMOVE command lets you implement incremental mo ves in either direction for each channel.

34. Chapter 2 Ethernet Port 2-7 Please download and run the “SetupFPLCConfig.exe” file from the above URL to install the “F-series Ethernet Configuration Utility” program. After you have installed the conf iguration program, please click on the Windows “Start” button and open the “F-series PLC Configuration” group and select the “Ethernet Configurat ion Utility” program. The following screen should appear: This configuration program can only communicate with the PLC via its serial port (RS485 in the case of Nano-10). If you PC already has an RS232 port (or USB-RS232 adapter), you can purchase an Auto485 adapter to obtain the required RS485 interface. Otherwise, it may be more convenient to purchase a USB-to-RS485 adapter (e.g http://www.tri-plc.com/U-485.htm ) for the program to work with the Nano-10 PLC. First, click on the “Serial Setup” button and set the PC’s COM port to the same settings as the PLC’s RS485 port. (default settings are 38,400bps, 8 data bit, 1 stop bit and no parity). It is important that you select a valid COM port on the PC, otherwise the program will report an error when it fails to open the COM port. The selected COM port number is shown in a small text box below the “Serial Setup” button so that you can see the currently selected COM port readily. Figure 2.1.5 Next, click on the “Retrieve Parameters from F-PLC” so that you can captur e a copy of the current configuration stored in the Nano-10 PLC. You can t hen selectively modify the parameters of interest. The main difference between this standalone version of the F-series Ethernet Configuration software and the built-in version on i-TRiLOGI 6.3x is that the stand-alone version c an only communicate directly with the PLC via the serial port, and it does not require the i-TRiLOGI or TLServer software. The built-in version in i-TRiLOGI, on the other hand, can communica te with the PLC through either locally via the serial port or remotely via the Ethernet connection. The standalone version can be useful for OEMs who want to provide their customers a way to configure the Ethernet settings, and/or calibrate the ADC, and RT C settings but don’t want to provide access to the programming software. However, the OEMs must remem ber that their customers’ PC would require the RS485 interface converter to use this standalone software with the Nano-10 PLC. Important: If you make changes to any of these fields , you must select the “Reboot PLC After Save” checkbox before clicking the “Save Parameters to PLC button” so that the new parameters will be saved to the flash memory of the PLC and the new parameter can take effect immediately.

94. Chapter 5 Analog Inputs 5-8 Figure 5.6 5.4.1 ADC Calib. These fields are used to apply a multiplication fact or to the value returned by ADC function. The multiplication factor = (1+ x/10000). Example 1: If you apply 2.500V to ADC #1, you would expect the value returned by ADC(1) to be 2048. But the actual average reading centers around 2060. Proportional Error = 2060/2048 = 1.005859 Multiplication factor required to correct this error = 1/1.005859 = 0.9942 = (1 – 58/10000) => x = -58 You should therefore enter a value of 58 into the “ADC Calib” field for Ch #1 and save it to the PLC. After the PLC has rebooted, the CPU would apply the mu ltiplication factor of 0.9942 to the readings it received, which would correct the reading to: 2060 x 0.9942 = 2048. Example 2: If you apply 4.000V to ADC #2, you would expect the ADC(2) function to return a value of 4.000/5.000 x 4096 = 3277. However, your program returned a value of 3230 from ADC(2). Proportional Error = (3230)/3277 = 0.985658 Multiplication factor required to correct this error = 1/0.985658 = 1.0146 = (1+ 146/10000) => x = +146 To compensate for this error, enter a value of 146 in the “ADC Calib.” for Ch 2 and save it to the PLC. After the PLC has rebooted, the CPU would apply the mu ltiplication factor of 1.0146 to the readings it received, which would correct the reading to: 3230 x 1.0146 = 3277. Notes: 1) We have created an MS-Excel spreadsheet file “AnalogCalibration.xls” to facilitate the computations of the correction factor, X, used in the ADC and DAC Calibration of F-series PLC. The same file can also be used to compute the ca libration factor for the Nano-10. This file can be downloaded from the following web page: http://www.tri-plc.com/appnotes/F-s eries/AnalogCalibration.xls

141. Chapter 14 Serial Communications 14-9 PLC Variables OMRON MODBUS Timer Present Values 1 to 64 IR128 to IR191 40129 to 40192 Counter Present Values 1 to 64 IR256 to IR319 40257 to 40320 Clock TIME[1] TIME[2] TIME[3] IR512 IR513 IR514 40513 40514 40515 Date DATE[1] DATE[2] DATE[3] DATE[4] IR516 IR517 IR518 IR519 40517 40518 40519 40520 Variables A to Z (32-bit) (Firmware >= r79) A B .... Z IR714 & IR715 IR715 & IR716 .. IR764 & 765 4-0715 & 4-0716 4-0717 & 4-0718 4-0763 & 4-0764 Data Memory DM[1] DM[2] .... DM[4000] DM[1] DM[2] .... DM[4000] 41001 41002 .... 45000 14.6.1.1 BIT ADDRESS MAPPING FROM A MODICON / MODBUS DEVICE The bit register offset is shown in the last column of Table 14.1. Note that th is is the Modicon addressing style, which uses 1-based addressing. When the Modic on variation of the Modbus protocol is used to access the Nano-10 (from software or a master device), the above bit addressing should be used. When the standard Modbus protocol is used, 0-based addressing is required. This means that the addresses should be one less than indicated in the last column of Table 14.1. Meaning you would use address 0 to access input #1 on the Nano-10 instead of address 1. All the Nano-10 I/O bits are mapped identically to both the MODBUS “0x” and 1x space. Although MODBUS names the 0x address space as “Coil (which means output bits) and the “1x” address space as “Input Status” (which means input bits only), t he Nano-10 PLCs treat both spaces the same. Some MODBUS drivers only allow you to “read” from 0x space and “write” to 1x space but you still use the same offset shown on Table 14.1. Example 1 – Modicon Variation : To map a lamp symbol to PLC Input 4, you select the MODBUS register addr ess 0-0004. You can also map a lamp symbol to the PLC’s output #2. In that case, you should map it to MODBUS register address 0-0258. To map a toggle switch symbol to the PLC input #4, if you are restricted to select only MODBUS 1x address space, then you will have to map the switch to 1-0004, and likewise you can map the switch to

145. Chapter 14 Serial Communications 14-13 14.7 Using The PLC As a Modbus Master – Getting Data From Power or Flow Meters The Nano-10 PLC support for the MODBUS protocol goes beyond being a MODBUS slave only. You can use the TBASIC READMOBUS and WRITEMODBUS co mmands, as well as READMB2 and WRITEMB2 to send out MODBUS ASCII or RTU commands to acce ss any other Nano-10, F-series or T100M+ series PLC or any third party MODBUS slave devices . The READMODBUS or READMB2 commands use MODBUS Function 03 (this can be changed to func tion 04 using SETSYSTEM 6,4 command) to read from the slave, and WRITEMODBUS or WRITEMB2 us e MODBUS Function 16 to write to the slave. Note that when using the READMODBUS or WRITEMODBUS commands, the 40001 address stated in Table 14.1 should be interpreted as address 0000, and 40002 as address 0001, and 41001 as address 1000, etc. This is in accordance with the specific ations stated in MODBUS protocol. MODICON defined zero offset addresses for the MODBUS protocol, ye t in their holding register definition these are supposed to start from address 40001 - hence the unusual correspondence. But to maintain compatibility with the MODBUS specifications, we have to adhere to their definitions. 14.7.1 Nano-10 PLC As MODBUS RTU Master The Nano-10 PLC can also act as a MODBUS RTU master! The same READMODBUS and WRITEMOBUS commands can be used to send and receive MODBUS RTU commands. What you need to do is add 10 (decimal) to the COMM port number to signal to the processor that you wish to use MODBUS RTU instead of MODBUS ASCII to talk to the slaves. In other words, you should specify port #11 to use RTU commands on COMM1. E.g. the statement DM[10] = READMODBUS (11, 8, 16) will access, via COMM1, the slave with ID = 08 and r ead the content of regist er #16. This register corresponds to MODICON address 40017 and is the OUTPUT[1] of the slave PLC. The ability to speak MODBUS RTU greatly extends t he type of peripherals that can be used with a Nano- 10 PLC. You can now make use of many off-the- shelf, third party RTU devices to extend the PLC capability.

185. Chapter 17 I2C Communication 17-6 17.2.3 I2C_STOP This command has no parameter. It sends a STOP bit to the slave and complete the I2C_WRITE command. 17.2.4 Random Write To M24M01 EEPROM The first M24M01 EEPROM on the I2C-FRTC (U2) has two binary slave device addresses: 101 0000 b (&H50) and 101 0001b (&H51). Device address &H50 is for accessing the first bank of 64K bytes of EEPROM, and address &H51 is for accessing the second bank of 64K bytes of EEPROM. There is also a blank solder pad on the bottom layer of the I2C-FRTC module, which allows you to solder an additional M24M01 (U3) to the I2C-FRTC PCB. When assembled this second M24M01 chip will assume the binary address of 101 0010b (&H52) and 101 0011b (&H53). Device address &H52 on U3 is for accessing the first bank of 64K bytes while device address &H53 is for accessing the second bank. Please refer to the M24M01 EEPROM data sheet for the detailed description of the addressing scheme for writing a byte of data to a random EEPROM addr ess. The following picture depict the necessary command: Example. To write a byte of data XX to the EEPROM address 54321 (&HD431) in first 64K bank, you need to do the following: DM[11] = &HD4 DM[12] = &H31 DM[13] = xx ‘ your data byte I2C_WRITE &H50, 11, 3 ‘ write 3 bytes of data from DM[11] to DM[13] I2C_STOP ‘ necessary to end the byte write. The data XX will be written to the EEPROM address 54321 If you want to store the data to second bank of EEPR OM address, then replace the I2C_WRITE line with: I2C_WRITE &H51, 11, 3 17.2.5 Page Write To M24M01 EEPROM As you can see, writing a single byte of data to a random location involv es 4 bytes of data transfer, which is not very efficient. Fortunately, the EEPROM allo ws you to write more than one byte to the EEPROM and the EEPROM will write to the subsequent locati on sequentially. This is known as “Page Write” and you can write up to 256 bytes in the same page. A page is defined as the memory location having the

189. Chapter 18 Extended File System 18-2 18 EXTENDED FILE SYSTEM Before you begin, please download a sample I-TRiLOGI program that will be referred to throughout this section from our website: http://www.tri-plc.com/trilogi/ExtendedFileSystem.zip 18.1 Introduction A Nano-10 or FMD PLC with r77 or later firmware may be used with a new module - FRAM-RTC-256, which, besides adding 11K words of FRAM (see Sect ion 1.7.2) and a battery-backed RTC module, also adds 256K bytes of extended data file space to the PLC. Note: The I2C EEPROM memory on the I2C-FRTC m odule (default =128K bytes, user-expandable to 256K) described in Chapter 17 can also be used as extended data file in exactly the same way as the FRAM-RTC-256. However, in the rest of this chapter we will only refer to the FRAM-RTC- 256. Without the FRAM-RTC-256, the Nano-10 PLC only has 60K bytes of file memory to be used for storing control web pages as described in Chapter 2.9 (Note the default file space on the Nano-10 PLC before firmware r77 was 64K bytes, but it has been reduced to 60K to make space for the new r77 firmware). FRAM-RTC-256 adds an additional 256K bytes of file s pace to the PLC. You can use the extended file space for storing additional web pages. But more important ly, a PLC with a new r77 or later firmware can open a local data file in this file space and write/ append data to it. The PLC can therefore log a large amount of data into one or more data file s, which can be retrieved for analysis. There are two ways to retrieve the stored data files from the PLC: 1. Download the file from the PLC’s built-in w eb server: The file created by the PLC can be downloaded from the PLC’s built-in web server using any web browser. This allows the user to access the data file at any time of the day. 2. Automatic FTP upload from the PLC to an exte rnal web-server: You can program the PLC to make an FTP client connection to any web server on the local network or on the Internet/Cloud and upload the data file it has created to the web-server using any filename. Imagine what the Nano-10 or FMD PLC can do with th is new uploading capability! The ability to log data locally and automatically upload the data to a web se rver transforms the FMD PLC into a potent data- logger! The PLC can be programmed to capture da ily, weekly or monthly data and then periodically upload the data file to an Internet web server with a unique, time-stamped filename (E.g. “temperaturelog2012-01-01.xls”). This allows the PLC to log data completely unattended. The data uploaded by the PLC to the external web se rver can be viewed or downloaded into a PC using any web browser, anywhere in the world. This allows you to carry out analysis of past logged data file for performance or diagnostic analysis at any time without having to physically access the PLC to retrieve the logged data.

44. Chapter 2 Ethernet Port 2-17 assigned to another device on the same netwo rk, otherwise a conflict would occur and communication is not possible. 2.4 Using Fserver “Network Services” Commands The F-Server firmware in the Nano-10 PLC implements a list of “Network Services” commands similar to what you may have read in the User’s Manual of the X-Server (“NS commands) and TLServer (“Files and Email Services”). These “Network Services” or NS in short, can be used to instruct the Nano-10 PLC’s operating system to perform a number of network related client connec tion via the Ethernet port. These commands allow the PLC to connect remotely to another PLC in another build ing or another part of the world via the Internet! This allows peer-to-peer networking, or so-called “M2M” (machine to machine communication) to take place between the PLCs. Notes : 1. In the case of the X-Server and TLServer , the PLC typically communicates with these external hardware or software servers vi a its COMM1 serial port, and thus TBASIC statements and functions such as PRINT #1, INPUT$(1) and NETCMD$(1) are used since the NS commands are sent through the serial port #1. 2. Since the Ethernet is already built-in on the Nano-10 PLCs, you do not need to send NS commands via any of its serial port (this also m eans that no serial port is sacrificed in order to have access to Ethernet communication). Ho wever, to help users of the XServer and TLServer migrate easily to the Nano-10 PLC Ethernet port, we implement the NS commands using similar command format as that on the XServer and TLServer. But instead of sending the commands through COMM1, you will interact with the O/S through COMM port #4. d Of course, since the Nano-10 PLC doesn’t have 4 serial ports, COMM port #4 is therefore only a “virtual comm. port” and its creation is merely to simplify implementation of the NS commands. 3. The “TestEthernet.pc6” (download from: http://www.tri-plc.com/trilogi/Nano10Samples.zip ) includes all examples of how to use the NS commands via virtual comm. port #4, which serves as a good starting point for you to lear n these simple but yet powerful methods for making a client connection over the LAN or the Internet. 4. The PLC reserves only a single client socket to implement the Network Services. If you use any of the NS commands listed below, please ensure that the command is completed (so that the client socket can be closed) before issuing a different NS command. All NS commands begin with a string enclosed within the angle bracket called a “tag”, e.g. “<EMAIL>”, “<CONNECT>”. Most NS commands end with a closing tag “</>” except the “< REMOTEFS>” tag, which ends with a “</REMOTEFS>” closing tag. D epending on the command type, the Nano-10 CPU may return one or more response strings via virtual comm. port #4, from which the PLC can read to determine if the NS command has been executed properly.

55. Chapter 2 Ethernet Port 2-28 2.7 Web Service: Accessing PLC's data from MS Excel The FServer provides an extremely useful feature called “Web Service” . You can actually use your web browser to access the Nano-10 PLC internal data by specifying the following URL: <IP Address: portno of FServer>/HOS TLINK/<Point-to-point hostlink command without “ * ”> E.g. Please enter the following URL in to your web browser URL address space: 192.168.1.5:9080/HOSTLINK/IR You will see the following data appear on your browser screen: IR01 “IR” is one of the many “host link commands” that allo ws a host computer to read or write to the PLC’s internal data space using ASCII strings. This particu lar command “IR” is for reading the PLC’s ID and in this case the PLC returns “01” by default. For more details on the list of host link commands, please refer to Chapter 15 of this manual. Normally the host link commands are sent to the PL C via the serial port (as per all other PLC models produced by TRi). The FServer, how ever, permits these host link comm ands to be sent using the HTTP protocol, which enables the Nano-10 and F-series PL C to be easily accessible by enterprise software using what is known as “Web Query” methods. The ent erprise software only needs to know the format of the host link command required to read the target data and then they can use their web query capability to query the PLC and extract the requi red data from the response string. One example, which you can try immediately, is to use the Microsoft Excel 2000 (or later version) spreadsheet program. First, open a blank spreadsheet, then click on the “Data” menu and select “Get External Data” -> New Web Query, as shown below: Figure 2.6.1

73. Chapter 3 I/O and Internal Relays Programming 3-1 3 DIGITAL I/O AND INTERNAL RELAYS PROGRAMMING 3.1 Introduction Although the Nano-10 PLC has only 4 physical Digital Inputs and 4 Digital Outputs, all additional input and output bits that are supported by the i-TRiLOGI software are still av ailable to the Nano-10 PLCs as internal inputs and output bits. Nano-10 also supports a ll 512 internal relays available in both ladder logic and BASIC. 3.2 Programming DIO with Ladder Logic The physical I/O and internal relays can be progr ammed in ladder logic in a few simple steps. 3.2.1 For Physical I/O 1. Create or Edit the label names 2. Place the input contact(s) into the ladder logic circuit 3. Place the output coil at the end of the ladder logic circuit 3.2.2 For Internal Relays (Non-Latching) 1. Create or Edit the label names 2. Place the relay contact(s) into the ladder logic circuit 3. Place the relay coil at the end of the ladder logic circuit 3.2.3 For Internal Relays (Latching) 1. Create or Edit the label names 2. Place the activating input/relay c ontact into the ladder logic circuit 3. Place the latching relay in par allel with the activating contact 4. Place the relay coil at the end of the ladder logic circuit

133. Chapter 14 Serial Communications 14-1 14 SERIAL COMMUNICATIONS 14.1 Introduction: There is only a single, RS485 serial port on the N ano-10 PLC. This serial port supports full Modbus ASCII/RTU and Host Link Protocol drivers and it c an also be programmed to accept or send ASCII or binary data using the TBASIC built-in commands such as INPUT$(n), INCOMM(n), PRINT #n, OUTCOMM n, d. This serial port is designated as COMM1 to the T BASIC and it is a two-wire RS485 port that allows multiple PLCs to be connected to a single host computer or a master PLC for networking or to implement a distributed control system. 14.2 COMM1: Two-wire RS485 Port This half-duplex RS485 ports is meant for serial bus type networking or for connecting to optional peripherals such as a serial LCD message-display unit (e.g. MDS100-BW ), external analog modules (e.g. I-7018 ), touch panel HMI, or it can be used for inter-communication between PLCs. Up to 255 RS232/RS485 peripheral devices may be lin ked together in an RS485 network on this port. The RS485 port signal is carried on a 2-way screw te rminal connector (please refer to Chapter 1- Installation Guide). For successful communication using the RS485 port, you need to correctly connect the ‘+’ and ‘-’ terminals to the RS485 equipment using a twisted pair cable. If you are using the PC as the network host, you will need an USB-to -RS485 converter such as the U-485 converter. The following describes some possible uses of the RS485 ports. 14.2.1 PROGRAMMING AND MONITORING The Nano-10 PLC can be programmed via its RS485 por t on a one-to-one or multi-drop manner. If your PC already has an RS232 port or your already own a USB-to-RS232 converter, then you can convert the RS232 port into RS485 port using the Auto485 adapter in order to communicate with the PLC. If your PC only has USB ports, then the easiest way is to purchase a USB-to-RS485 adapter ( U-485 ), which is port-powered so you only need to connect two wires from the U-485 to the PLC’s RS485 port to establish communication. Programming via COMM1 is particularly useful if the Nano-10 PLC is not yet connected to the LAN, and if your PC does not have a spare Ether net port for direct connection (see Section 2.8 ) that can be used for programming. Another reason for programming via RS485 is if your Ethernet port default IP address is not compatible with the subnet of your network. You will then need to connect i-TRiLOGI to the PLC via RS485 port in order to change the IP address.

74. Chapter 3 I/O and Internal Relays Programming 3-2 3.2.4 Programming Examples: 3.2.4.1 Example 1 – Editing Label Names The Digital I/O can be named by selecting “I/O Table” from the “Edit” menu and choosing the particular digital I/O that you want to name. In Figure 3.1, physical input #1 is being named “Input1”. Figure 3.1: I/O Table 3.2.4.2 Example 2 – Creating a Simple Ladder Logic Circuit You can place components in the circuit by clicking in the green area to the right of the red arrow, as shown in Figure 3.2 below. This will bring up the component tool bar in t he gray area above the green circuit area. Figure 3.2: Creating Ladder Circuit Once the component toolbar is shown, you can plac e your input/relay contact by selecting the #1 component from the toolbar and then selecting the digital input from the I/O Table. The contact will then be automatically placed in the ladder logic circuit. The same can be done for the output coil by selecting the #7 component from the toolbar and then selecting an out put that has been entered into the I/O Table. After selecting one input and one output, the ladder logic circuit should like something like Figure 3.3, below: Figure 3.3: Completed Ladder Circuit 3.2.4.3 Example 3 – Creating a Latching Relay Circuit The first part of the circuit follows the same procedur e as the previous example, except that the #7 coil should be a Relay coil. So it should look similar to the circuit in Figure 3.3. The next part requires a parallel contact to be added to the Input1 contact. Th is is done by selecting the Input1 contact (or whichever contact was used) and then adding the #3 contact , as shown in Figure 3.4 below.

75. Chapter 3 I/O and Internal Relays Programming 3-3 Figure 3.4: Completed Latching Circuit 3.3 Programming DIO in a Custom Function In order to program digital I/O or anything in a cust om function, a custom func tion must be created in the I/O Table and added in a ladder logic circuit. Custom func tions act the same way as coils in ladder logic, in that that they need a contact to activate them. Once they are activated, the code inside them will execute. To create a custom function circuit, follow these 3 steps: 1. Edit the name of the custom function in the I/O Table 2. Place the activating contact in the ladder logic circuit 3. Place the custom functi on at the end of the circuit 3.3.1 Editing Label Names: This is the same as for the digital I/O, except that the I/O table window needs to be scrolled to the custom function area for editing custom function names. Placing the custom function in the circuit is done t he same way as other ladder logic contacts and coils, by selecting the and then choosing the Differential cust om function {dCusF} from the pop-up window . The circuit should look something like below: Figure 3.5: Circuit with custom function {dCusF} 3.3.2 Controlling I/O from Custom Functions: An empty custom function looks like this:

77. Chapter 3 I/O and Internal Relays Programming 3-5 In this case, out1 and out5 would need to be entered in the I/O Table as an output. Otherwise, there will be a compilation error. 3.3.4 Example 2 – Toggle an Output TOGGLEIO light ‘This will change the output, light, from off to on or on to off The output, light, would need to be entered into the I/O Table as an output as well and could represent any desired output. 3.3.5 Example 3 – Test the Status of an Output This can be done using both the TESTBIT ( v, n ) and TESTIO ( labelname ) command. Using TESTBIT ( v, n ) X = TESTBIT (INPUT[2], 1) ‘status of input #10 (on = 1, off = 0) is stored in variable X Using TESTIO ( labelname ) X = TESIO (button) ‘status of input button (def ined in the I/O table) is stored in variable X

80. Chapter 4 Timers, Counters & Sequencers 4-2 4.2 Programming timers and counters on Ladder Logic The timers and counters can be programmed in ladder logic in a few simple steps. 4.2.1 For Timers 1. Create/Edit the label names 2. Place the input contact(s) into the ladder logic circuit 3. Place the timer coil at the end of the ladder logic circuit 4. Place the timer contact in one or more ladder logic circuits 4.2.2 For Counters 1. Create/Edit the label names 2. Place the input contact(s) into the ladder logic circuit 3. Place the counter coil at t he end of the ladder logic circuit 4. Place the counter contact in one or more ladder logic circuits (optional) 4.2.3 Example 1 – Creating a Simp le Timer Circuit in Ladder Logic You can place components in the circuit by clicking in the green area to the right of the red arrow, as shown in Figure 4.1 below. This will bring up the component tool bar in t he gray area above the green circuit area. Figure 4.1: Creating Timer Circuit Once the component toolbar is shown, you can pl ace your activating contact by selecting the #1 component from the toolbar and then selecting the activating contact from the I/O Table. The contact will then be automatically placed in the ladder logic circuit. The same can be done for the timer coil by selecting the #7 co mponent from the toolbar and then selecting a timer that has been entered into the I/O Table. Then a timer contact needs to be added as an input to a ladder logic circuit. This contact will activate once t he timer counts down. This could be used to turn on an output a certain amount of time after the timer coil is activated. Placi ng a timer contact in a circuit is the same as placing any contact in a ladder circuit, ex cept that the corresponding timer s hould be selected from the “Timers” section of the I/O table. After creating a ladder circuit that contains one i nput and one timer output and another ladder circuit that contains one timer contact and one output, the ladder l ogic circuit should like something like Figure 4.2, below:

125. Chapter 12 Real Time Clock 12-3 12.5 Setting the RTC from Internet Time Server Please refer to Section 2.5 for more detailed information on how your PLC may be able to automatically set its own real time clock using the time server dat a available on the Internet. A sample program is also included in that section. 12.6 Setting up an Alarm Event in TBASIC Since, to the TBASIC program, the RTC data are simp ly integer arrays DATE[1] to DATE[4] and TIME[1] to TIME[3], they are fully accessible at any time by your PLC program. Theref ore, if you want your program to execute a certain routine on a specific date and or/time, you would need to periodically check these variables against the desired settings and activa te the action when the RTC variable(s) reach the set value. Example: Set up a 1 minute clock pulse to monitor the RTC as follows: Figure 12.3: Using Real Time Clock Example 12.7 Retrieving RTC Clock values using STATUS (18) For Nano-10 PLC with firmware version r72 and abov e, you can read the hour, minute and second of the Nano-10 RTC in a single STATUS(18) function. The RTC hours, minutes and second values are returned as a single integer in the following format: hhmmss. This could be faster and more convenient to use t han to perform 3 comparison statements using TIME[1], TIME[2] and TIME[3]. However, please note that this f unction is not available on the M-series PLC or F- series PLC with older firmware version and it is currently not supported by the i-TRiLOGI version 6.30 simulator. You will need to transfer your pr ogram to the PLC in order to test it.

180. Chapter 17 I2C Communication 17-1 17 I 2 C COMMUNICATION The Nano-10 PLC (with firmware r76 or later) supports the Inter-Integrated Circuit – IIC, also commonly known by the acronym I 2 C or I2C bus. Please refer to the I2C spec ifications of your device for detailed explanation of the I2C protocol. Nano-10 only supports the I2C as a master and operates at 100KHz, which allows it to connect to many off-the-shelve components such as GPS, accelerome ters, thermometer, analog I/O chips, etc. The PLC can connect to multiple I2C slaves in a multi-drop I2C bus, which greatly expands its capability. The built- in TBASIC commands also greatly simplify t he I2C communication with the slave devices. However, you can only use the I2C communi cation capability provided your Nano-10 meets all the following conditions: 1) You have installed the I2C interface module (s uch as the I2C-FRTC supplied by TRi) on the Nano-10. 2) You have upgraded your I-TRiLOGI so ftware to version 6.40 or later. 3) The PLC firmware is >= r76, Note: The I2C-FRTC is intended for advanced users only, so it may not be available for general online sales in the shopping cart system. If you wish to obt ain pricing or would like to place an order, please contact sales directly via email (sales@t ri-plc.com) or phone (877 874 7527) to inquire. 17.1 The I2C-FRTC Module 17.1.1 Installing the I2C-FRTC Module Female 2x5 socket CR1632 battery Nylon standoff To install the I2C-FRTC module, first ensure that you have turned OFF power to the PLC. The I2C-FRTC module has a row of 2x5 male header pins that is to be inserted into the single mating 2x5 female socket on the PLC. Please ensure that the pins are aligned correctly with the socket. There is a

194. Chapter 18 Extended File System 18-7 18.6 Setting Up The FileZilla FTP Server One important capability of the Nano-10 PLC with r77 fi rmware is the ability to upload files created by the PLC to an external server on a local area network or on the Internet via the FTP protocol. If you have access to an FTP username and password on your company’s server (or if the SysAdmin is authorized to set up an account for you) you can certainly use y our own account for testing. If not, you can download the free Filezilla FTP Server and set it up for te sting. The “ExtendedFileSyst em.PC6” has an FTP upload demo and it was configured to work with a FileZilla FTP server. Using Filezilla has the advantage that you can s ee the login sequence performed by the PLC when it attempts to connect to the FTP Server so that it is easier to troubleshoot connection problem. (For professional grade troubleshooting, one handy program to have is the “Wireshark” program which is a TCP/IP packet sniffer that allows you to look at t he actual TCP/IP packets s ent between your PC and the PLC). However, it is important to setup the File zilla server program properly to minimize connection trouble. 18.6.1 Download and Setup FTP Server 1. First download the FileZilla server installer from the following website: http://filezilla-project.org/download.php?type=server 2. Run the “FileZilla Server Interface” program, wh ich is meant for managing the FTP Server settings. 3. If the FileZilla Server is running on the same PC that you are running the FileZilla Server Interface program then you can use the localhost IP addre ss which is 127.0.0.1 – the Port can be anything since this is a client port that the Interface program is using to interact with the FTP Server (don’t be confused with the FTP Server listening port which is by default = 21). 4. If this is the first time you run the program after setting up Filezilla FTP Server there will be no Administration password so you can l eave it blank. Click OK to connect. 5. Click “Edit->Settings” and then “General Settings -> Welcome message ” – leave only one line of welcome message so that the PLC has less work to do. Then click OK to accept the change.

91. Chapter 5 Analog Inputs 5-5 Reference Point ADC Reading x1 a1 x2 a2 Hence, for any reading A = ADC(1), the corresponding X is derived from: X - x1 A - a1 ⎯⎯⎯⎯⎯ = ⎯⎯⎯⎯ x2 - x1 a2 - a1 ==> X = (x2 - x1)*(A - a1)/(a2 - a2) + x1 Note that since x1, x2, a1, and a2 are all constants the actual formula is much simpler then it appears above. E.g. Temperature measurement Temp ADC(n) 30 o 200 100 o 3000 So for any ADC readings A, the temperature is: X = 70*(A - 200)/2800 + 30 Note: To get better resolution , you can represent 30 degree as 300 and 100 degree as 1000 so if X = 123 it means 12.3 degree. 5.3 Temperature Measurement Using Analog Inputs 5.3.1 Thermistor Temperature Sensors A thermistor is a kind of resistor whose re sistance decreases when its surrounding temperature increases. It is a very low cost and stable device t hat can be used to measure a wide range of ambient temperature from freezers to hot water boilers , which are commonly used in HVAC applications. In order to convert the resistance changes into voltage readings to be read by the PLC’s analog input, you can use it to form an arm of a voltage divider circuit which would present a variable voltage to the analog input when the temperature changes. A type of t hermistor that measures 10.0K ohm at 25 degree C (simply called 10K thermistor) is especially su itable for use with the Nano-10 PLC because you can simply connect the 10K thermistor directly to t he analog input due to its internal impedance of 20.00K ohm (0.1% accuracy).

82. Chapter 4 Timers, Counters & Sequencers 4-4 4.3 Programming timers and counters in Custom Function 4.3.1 Programming Timers and Counters Present Values The present values (PV) of the 64 timers and 64 count ers in the PLC can be acce ssed directly as system variables: timerPV[1] to timerPV[64], for timers' present value ctrPV[1] to ctrPV[64], fo r counters' present value 4.3.2 Accessing Inputs, Outputs, Rela ys, Timers and Counters Contacts The bit addressable I/Os elements are organized in to 16-bit integer variables TIMERBIT[n] and CTRBIT[n] so that they may be easily accessed from within a CusFn. These I/Os are arranged as shown in the following diagram: 4.3.3 Changing The Timer and Counter Set Values in a Custom Function You can use the SetTimerSV and SetCtrSV functions to change the Set Value (SV) for a timer and counter respectively. An exam ple of this is shown below: SetTimerSV 1,500 ‘Define Timer #1 to have a Set Value of 500 SetCtrSV 10,1000 ‘Define Counter #10 to have a Set Value of 1000 4.3.4 Volatility of Nano-10 Timer & Counter Set Values It is important to know that, regardless of whether an FRAMRTC is installed, all the Set Values (SV) of timers and counters in Nano-10 PLC are stored at special pseudo EEPROM areas reserved for storing configuration data. We have described in detail how the pseudo EEPROM are implemented in the Nano- 10 PLC (see section 1.6.2 ). Although this pseudo EEPROM area fo r storing configuration data is separate from the user-EEPROM area that y ou access with the SAVE_EEP and LOAD_EEP commands, the underlying mechanism works the same way. That is to say, if your TBASIC program changes the SVs using the SetTimerSV and SetCtrSV command, the new SVs are only temporarily stored in the PLC RAM area until they are backup to the flash memory.

13. Chapter 1 Installation Guide 1-1 1 INSTALLATION GUIDE FOR NANO-10 PLC NANO-10 00-1F-2E-00-10-10 Super PLC 24V 0V OUT1 OUT2 OUT3 OUT4 -RS485+ IN1 IN2 IN3 IN4 AN1 AN2 +5V J3 J4 NANO-10 By TRi PAUSE Output LED Indicators (Red) Input LED Indicators (Green) Reserved 24V DC Power Supply for PLC Power1 (AC/DC) Power2 (AC/DC) LOAD LOAD LOAD LOAD + + - + - Ethernet (RJ45) Modbus/TCP Remote programming Email, peer-to-peer etc. Two-Wire RS485 Port RELAY 1 RELAY 2 4 Digital Inputs (24V, NPN) 2 Analog Inputs (0-5V) +5V Analog Reference Figure 1.1 1.1 Overview The new TRi’s Nano-10 is quite possibly the world’ s most powerful Nano-class PLC! Although measuring only 2.75” x 3.25” and spots just 10 digital+analog I/Os, it comes with a built-in Ethernet port that can be connected directly to a network router, switch, or hub for access to the LAN or to the Internet. The Ethernet port supports the FServer (for remote pr ogramming or monitoring) and a Modbus/TCP server (for access by third party devices) with up to 6 simultaneous connections. The user can also easily program the Nano-10 to connect to another PLC (pee r-to-peer networking) or to Modbus/TCP slave devices via the Internet. It can email real time data to any email address(es), or connect to the Internet Time Server to get the most accurate real time information. The Ethernet port also supports “Web Services”, allowing enterprise software, such as a database program or MS Excel, to query for information from multiple PLCs instantaneously. This also means that you can even create your own Ajax based web page to monitor/control your PLC using an internet

104. Chapter 8 Frequency / Speed Measurement 8-2 8.2 Applications 0V T100MD PLC Input #3 Motor NPN type Optical Sensor +24V Figure 8.1 Setting Up a Simple Tachometer or Encoder 8.2.1 Measuring RPM Of A Motor One useful application of the PM capability is to measure the speed of rotation (RPM) of a motor. A simple optical sensor, coupled with a rotating disk with slots fitted to the shaft of a motor (See Figure 8.1) can be fabricated economically. When the motor tu rns, the sensor will generate a series of pulses. The frequency of this pulse train directly measures the rotational speed of the motor (RPM = Frequency x 60) and can be used to provide precise speed control. Note that the above setup can also double as a lo w cost position-feedback encoder when used with the high speed counter, since the number of pulses c ounted can be used to determine the displacement. With the Nano-10 PLC, the pulses can be both counted and measured simultaneously on the same input. 8.2.2 Measuring Transducer with VCO Outputs Some transducers incorporate a Voltage-Controlled-O scillator (VCO) type of out put that represents the measured quantities in terms of varying frequency of the output waveform. Such transducers may be used conveniently by the Nano-10 PLCs using t he pulse measurement capability. However, the frequency of such signals should be below the maximum input pulse rate. 8.2.3 Measuring Transducer with PWM Outputs Some transducers may output the readings of their measurands (the quantity that is being measured) in the form of “pulse-width modulated” outputs. This means that the transducer would send rectangular pulses with varying duty cycles that are proportional to the measured quantities. You can then easily use the PULSEWIDTH and PULSEPERIOD f unctions to compute the duty cy cle of the incoming PWM pulses and readily convert it to the actual units of t he measurands. The Nano-10 PLC should be able to measure with reasonable accuracy the pulse width of incoming pulses not exceeding 10KHz. Nano-10 PLC

51. Chapter 2 Ethernet Port 2-24 Nano-10 PLC’s Variables MODBUS Timer Present Values 1 to 64 40129 to 40192 Counter Present Values 1 to 64 40257 to 40320 Clock TIME[1] TIME[2] TIME[3] 40513 40514 40515 Date DATE[1] DATE[2] DATE[3] DATE[4] 40517 40518 40519 40520 Data Memory DM[1] DM[2] .... DM[4000] 41001 41002 .... 45000 2.5.1.2 Word Address Mapping As shown in Table 2.1, to access the PLC’s DM [1], you use MODBUS address space 4-1001 and so on. To access the Real Time Clock Hour data (TIME[1] ), use 4-0513. The I/O channels can also be read or written as 16-bit words by using the addresses from 4-0001 to 4-0320. Some MODBUS drivers (such as National Instrument s “Lookout” software) even allow you to manipulate individual bits within a 16-bit word. So it is also possible to map individual I/O bits to the “4x” address space. E.g. Input bit #1 can be mapped to 4-0001.1 and output bit #2 is mapped to 4-0257.2, etc. This is how it is shown in Table 2.1. However, if you do not need to manipulate the individual bit, then you simply use the address 4-0001 to access the system va riable INPUT[1] and address 4-0257 to access the system variable OUTPUT[1]. Note that INPUT[1] and OUTPUT[1] are TBASIC system variables and they each contain 16 bits that reflect the on/off status of the actual physical input and output bits #1 to #16. 2.5.2 MODBUS/TCP Access Security If a Nano-10 PLC is to be accessible only on the loca l area network, then the direct connections offered by MODBUS/TCP provide simplicity without ti me-consuming login sequences. However, if the MODBUS/TCP port is to be exposed to the public Inter net, then you ought to consider the security issues associated with MODBUS/TCP connections. Since a MODBUS/TCP connection does not require a username/password login sequence (unlike the FServer login), the only way to protect against unaut horized access is through the “Trusted IP” addresses defined using the Ethernet C onfiguration software.

126. Chapter 12 Real Time Clock 12-4 Example Time STATUS(18) 0:0:0 0 0:1:5 105 10:5:3 100503 23:59:59 235959 You can therefore easily test the val ue of the RTC using a single command: E.g. IF STATUS(18) >= 100000 ‘ After 10 am in the morning SETIO Pump ENDIF 12.8 RTC Calibration (For FRAMRTC only) The RTC calibration routine is only applicable to t he FRAMRTC module installed on a Nano-10 PLC. The FRAMRTC uses a battery-back real time clock that derived its clock from a 32.768KHz crystal, which should provide reasonably good accuracy for normal use. However, if you like the FRAMRTC to be of greater accuracy, you can calibrate it using t he “Advanced Configuration” page of the “Ethernet Configuration Tool” in the PLC c onfiguration routine mentioned in C hapter 2. The data field to be used is the “RTC Calib” textbox as shown below: In the above field you will need to enter the number of seconds that you want t he PLC to add or subtract over a period of 72 hours. Therefore, first y ou must check the PLC’s RTC reading against a super accurate clock source (e.g. a clock that regularly updat es itself with atomic cl ock data in the airwaves) and find out how many seconds the clock would have gained or lost over 72 hours. For example, if the RTC is too slow and it loses 5 seconds over 72 hours, you would want the RTC to add 5 seconds over 72 hours and you therefore should ent er the value of +5 in the “RTC Calib + “ field. If the RTC is too fast and gains 8 seconds over the 72 hours, then you should enter a value of “-8” in this field to compensate for the inaccuracy. Note that the RTC does not compensat e for temperature variation. Hence, its accuracy is temperature- dependent. If you require the PLC’s RTC to be very accurate you should keep the PLC under a constant operating temperature. If your Nano-10 is connected to a LAN, then you also have the option of having the RTC periodically set itself using the very accurate RTC data that can be obtained from a time-server on the Internet (See Section 2.5 ).

204. Chapter 19 Using PLC As a Modbus/TCP Gateway 19-1 19 USING PLC AS A MODBUS/TCP GATEWAY 19.1 Introduction A Nano-10, FMD or F-series PLC with r77 firmwa re or later can be configured to act as the "MODBUS/TCP GATEWAY" for other Modbus serial devic es while continue to function as a Super PLC! A Modbus/TCP gateway essentially translates a M odbus/TCP command packet it receives from its Ethernet port into a Modbus RTU serial command and sends it out of its serial port (RS232 or RS485). If the Modbus RTU slave sends back a se rial response, the gateway will in turn translate the RTU response data back to Modbus/TCP response packet and retu rn to the client via the Ethernet port. As such the Modbus/TCP gateway enables any non- Ethernet equipped, both TRi or 3rd party serial Modbus slave device to be directly a ccessible by a Modbus/TCP client via the Ethernet or the Internet. In addition, the user PLC program does not need to handle the gateway function at all as the CPU performs the translation functions automatically and transparently to the PLC’s program. Best of all, while acting as a gateway, t he Nano-10, FMD or F-series PLC program can simultaneously act as a Modbus master PLC and read/write to any registers insi de any of the attached Modbus RTU slave! The CPU firmware automat ically schedules the order of t he command/response packets whether it is originated from the client or from the PLC itse lf so that the Modbus/TCP command from the client will be responded to in the correct order and in a timely manner. 19.2 Application Ideas for Modbus/TCP Gateway The Modbus/TCP gateway function can be very useful for many large ar ea control systems, such as a building automation system. A master FMD or F-se ries PLC is linked to many Modbus RTU slave controllers via RS485 bus distributed across an ent ire building. The master PLC can perform sophisticated control functions si nce it has read/write access to ALL the Modbus RTU slaves it connects to. At the same time, a Modbus TCP client softwar e such as a Building Management System (BMS) can access any registers in the master PLC or ANY of the slave Modbus RTU c ontroller directly via the master PLC acting as a gateway for the slave PLCs. 19.3 Configuring The PLC As Modbus/TCP Gateway The command used to define a serial port to become Modbus/TCP Gateway serial port is as follow: SETSYSTEM 12, n Where n = 1, 2 or 3 for COMM1, COMM2 and COMM3 port. This statement must be run once (could be during start up via 1st.Scan pulse) to configure the serial port #n to be used to send out RTU commands and receiv ed RTU responses. If SETSYSTEM 12,n is not run then the Modbus gateway function will be disabled. Here is how it works: A Modbus/TCP client (suc h as a SCADA, HMI etc) would send a Modbus/TCP request with a specific 8-bit Modbus slav e ID to the gateway PLC. If the ID matches the native ID that is assigned to the gateway PLC then the PLC will reac t normally by sending its own Modbus/TCP response

107. Chapter 9 Interrupts 9-1 9 INTERRUPTS 9.1 Input Interrupts During normal PLC ladder program execution, the CPU scans the entire ladder program starting from the first element, progressively solving the logic equation at each circuit until it reaches the last element. After which it will update the physica l Inputs and Outputs (I/O) at the end of the scan. Hence, the location of a logic element within the ladder diagram is impor tant because of this sequential nature of the program execution. When scanning the ladder program, the CPU uses some in ternal memory variables to represent the logic states of the inputs obtained during t he last I/O refresh cycle. Likewise , any changes to the logic state of the outputs are temporarily stored in the output memory variable (not the actual output pin) and will only be updated to the physical output dur ing the next I/O refresh. You can see that the CPU will only notice any change to the input logic state w hen it has completed the current scan and starts to refresh its input variables. T he input logic state must al so persist for at least one scan time to be recognized by the CPU. In some situations this may not be desirable because any response to the event will take at least one scan time or more. An interrupt input, on the other hand, may occur r andomly and the CPU will have to suspend whatever it is doing as soon as it can and start “servicing” the in terrupt. Hence, the CPU responds much faster to an interrupt input. In addition, interrupts are “edge-tri ggered”, meaning that the interrupt condition occurs when the input either changes from ON to OFF or from OFF to ON. Consequently, the input logic state need not persist for longer than the logic scan ti me for it to be recognized by the CPU. Any one or all of the Nano-10’s digital inputs #1 to #4 can be defined as interrupt inputs using the INTRDEF statement. The Interrupt inputs may also be defined as either rising-edge triggered (input goes from OFF to ON) or falling-edge triggered (input goes from ON to OFF), or both using the following statement: INTRDEF ch, fn_num, edge parameters: ch = channel number fn_num = Custom Function # to execute when interrupt edge occurred. This is the Interrupt Service Routine (ISR) edge = +1 :rising edge-triggered, -1 :falling edge-triggered 0 : both rising and falling edge-triggered. When the defined edges occur, the defined CusFn will be immediately executed irrespective of the current state of executi on of the ladder program.

54. Chapter 2 Ethernet Port 2-27 2.6 Getting data from Internet: C onnecting to The Internet Time Server The Nano-10 PLC features a special NS comm and tag <TCPCONNECT xxx.xxx.xxx.xxx: portno> that allows you to connect to any server to download dat a. However, since the PLC does not have a lot of memory for storing incoming text data, it is not suitable for downloading information from a commercial website that sends many kilobytes of data in a single download. It can however, be very useful to connect to some servers that send small amounts of informat ion. For example, there are many Internet Time Servers on the Internet that allow users to synchronize their computer clocks via the Internet. The service responds to time requests from any Internet client in several formats, including the DAYTIME, TIME, and NTP protocols. The simplest are those that send responses in ASCII data and you can extract the date and time information from the response ASCII string once you know the format. You can search on the Internet for a suitable time server and use the TELNET program on your PC to access them to examine their display format. Most timeservers listen either on port 13 or port 123 so you need to specify the port number together with their IP address when s ending the <TCPCONNECT> command. Format: <TCPCONNECT [IP address:por tno] of time server> Response: - none - Successfully connected to the Modbus/TCP server of the specified IP address. ERR:05-Prev Conn.ON Another NS command has been executed and left the client socket opened but did not execute the PRINT #4 “</>” to close the client socket. ERR:04-Not Connected Failed to connect to the targeted server. STATUS(3): This TBASIC function returns 1 if connected, or 0 if connection fails.. Description: Once a connection is made, you can then in teract with the remote server using the PRINT #4 and INPUT$(4) command. You use the INPUT$(4) command to read CR-terminated text strings sent by the server. You can also send data to the remote server using the PRINT #4 command. Example: Please refer to the “fnTCPconn1” cu stom function in the demo program: “TestEthernet.PC6” to see an example of how the PLC can connect to an NIST timer server and use the returned data to update the PLC’s real-time clock. A better, standalone program “TimeServe r.PC6” can also be found in the Nano10Samples.zip folder. This program not only updates the time but also updates the calendar and computes t he time zone and adjust for daylight saving time automatically. Note : Some NIST time servers have stri ct policy against abuse so you should avoid sending repeated request within a shor t period of time, otherwise further connections may be denied once you are considered to have violated their connection policy.

99. Chapter 7 High Speed Counters 7-1 7 HIGH SPEED COUNTERS Technical Specifications: No. of Channels 2 Maximum acceptable pulse rate 10KHz per channel Quadrature signal decoding Automatic Relevant TBASIC Commands HS CDEF, HSCOFF, HSCPV[ ] 7.1 Introduction Digital inputs #1 + 2, #3 + 4, form two channels of hi gh speed counter inputs which can interface directly to a rotary encoder that produces “quadrature” outputs. A quadrature encoder produces two pulse trains at a 90 o phase shift from each other as follows: Direction of Rotation 90 o Phase A Phase B 90 o Direction of Rotation Figure 7.1 When the encoder shaft rotates in one direction, phase A leads phase B by 90 degrees. When the shaft rotates in the opposite direction, phase B w ill lead phase A by 90 degrees. The quadrature signals therefore provide an indication of the direction of rotation. The F-Series PLC handles the quadrature signals as follo ws: if the pulse train arriving at input #1 leads the pulse train at input #2, the High Speed Counter (HSC) #1 increments on every pulse. If the pulse train arriving at input #1 lags the pulse trains at input #2, then the HSC #1 decrements. Note that if input #2 is OFF, then pulse trains arriving at input #1 ar e considered to lead the input #2 and HSC #1 will be incremented. Likewise if input #1 is OFF, then pulse trains arriving at input #2 will decrement HSC #1. Inputs #3 and #4 form the inputs for High Speed Counter channel #2, which operates in the same way as HSC#1 described above. The fact that the Nano-10 PLC autom atically takes care of the dire ction of rotation of the quadrature encoder greatly simplifies the programmer’s task of handling high-speed encoder feedback. The HSCDEF statement can be used to define a CusFn to be executed when the HSC reaches a certain pre- defined value. Within this CusFn you can define t he actions to be taken and define the next CusFn to be executed when the HSC reaches another value. Pl ease note that the HSDDE F statement will also activate the Pulse Measurement hardware as described in the Pulse Measurement section. A programming example of the HSC can be f ound in your iTRiLOGI program folder: C:\TRiLOGI\TL6\usr\samples\HighSpeedCtr.PC6

68. Chapter 2 Ethernet Port 2-41 Setting the Background Image The first line of code you can edit is: bgimagesrc="http://tri-plc.com/nano/hmipics/panelblue1.jpg" This is how you set the background image for your web page. All you need to do is replace URL of the JPEG file ( http://tri-plc.com/nano/hmipics/panelblue1.jpg ) with the URL of your own background graphics file hosted on any web server. Changing Label Names The names of the eight Internal Relay Bit buttons and the four Data Memory labels can be changed to anything or even left blank. All you need to do is replac e the words in the single quotes with anything from the following lines of code. Internal Relay Bit buttons: Ioname = ['Output1','Output2','Output3','Output4','Input1', 'Input2','Input3','Input4'] Data Memory labels: DMlabel =['DM[1]','DM[2]','DM[3]','DM[4]'] Relocating Display Data, Buttons, and Labels It is possible to change the default locations of the in teractive objects, which are the Data Memory labels and fields, the Internal Relay Bit buttons, and the LCD Display. All of these things have x,y coordinates that are defined in the level 1 user modification area. The coordinates are relative to the top left of the browser window, which would be 0,0. These coordinates can be easily modified, but in order to find the right values for your desired location you will need to do some trial and error with different numbers.

197. Chapter 18 Extended File System 18-10 1. First open a command prompt window and then type “ telnet 192.168.1.168 21 ” - this will open a telnet connection to the FTP server on our test PC with IP address 192.168.1.168 and listening at port 21. Please replace the IP address with the actual IP address of your PC. The following screen shot captures the test sequenc e. Note that the same command/response sequence with the server is also shown on the FileZilla Server Interface program front panel: USER PLC PASS 1234 2. Once you get the “230 Logged On” message you know that the FTP setup is done correctly. Note that the welcome message from t he FTP Server shows only one line “ 220 FileZilla Server Version x.xx ” which is what we have set it up to be. You can now disconnect from the FTP server by typing “Quit” at the command prompt. 3. There is one more things you need to do before y ou proceed to test the FTP upload features of the PLC to avoid connection problem – that is to temporarily TURN OFF the Windows Firewall and any software firewall setup by anti-virus software during your test. You can always re-enable your software firewall(s) after the test if you wish. PC operating system are designed to run client program normally instead of acting as a server so Window s Firewall by default is to block all incoming

92. Chapter 5 Analog Inputs 5-6 Figure 5.6: Connecting 10K Thermistor to NANO-10 ADC# 1-2 10K Thermistor A nalog 0V A/D #1 - #2 +5V Internal 20.00K Note that since the thermistor resistance value vs. temperature change is a non-linear function, you cannot simply use a formula to calculate the temperat ure from the voltage value. For better accuracy you need to use a look up table plus a linear interpol ation technique to determine the temperature based on the ADC readings. The look up table and interpolat ion method can be implemented using TBASIC quite easily. For your convenience, we have provided a sample TBASIC progr am that you can download from the following URL: http://www.tri-plc.com/appnotes /Nano10/ThermistorSensor.zip This example uses the R-T (Resistance-Temperat ure) graph of the Precon Type III thermistor to implement the temperature look up. We have provided an Excel file t hat computes the ADC reading vs ambient temperature for this thermistor type. The TBASIC program uses these ADC readings to determine the temperature. The sample program is structured such that the l ookup table values are stored in DM area and you can readily adapt it to other types of thermistors with a different R- T graph. The program only implements lookup for a temperature range of –10 o F to 110 o F, but you can also easily change the temperature range of interest. 5.3.2 Using LM34 Semiconductor Sensor Figure 5.4 The LM34 is a wonderful, low cost semiconduc tor temperature sensor with a range of –50 o F to 300 o F. It is extremely easy to use for measuring temperature above 0 o F. You simply connect one pin to the

19. Chapter 1 Installation Guide 1-7 1.5.2 Digital Output Wiring Diagram 24V DC Power Supply for PLC Power1 (AC/DC) Power2 (AC/DC) LOAD LOAD LOAD LOAD OUT4 OUT4 OUT2 OUT1 0V +24V + + - + - Figure 1.6 – Nano-10 Output Interfacing to Load All digital outputs are directly programmable in Ladder Logic as well as in TBASIC custom functions. Some programming examples are detailed in “ Chapter 3 –Digital I/Os and Internal Relays ”. Note that it is possible to wire the four outputs to become a H-bridge (relay outputs #3 and #4 as high side switch and MOSFET output #1 and #2 as low side switch), which can drive a DC motor in both forward and reverse directions. You can even use the PWM outputs to cont rol the speed of the motor and therefore make it possible to use the Nano-10 as an internet-acce ssible, bi-directional motor speed controller! 1.5.3 Inductive Load +24V Diode's reverse break down voltage should be at least 2 x load voltage Inductive bypass diode (DC only) PLC NPN Digital Output Figure 1.7 When switching inductive loads such as a solenoid or a motor, always ensure that a bypass diode is connected to absorb inductive kicks, which will occur whenever the output driver is turned OFF. Although Output #1 and #2 already incorporate intrinsic Zener by pass diodes to protect the driver, it only activates when the inductive kick voltage rises above the ma ximum breakdown voltage (about 55VDC). This could

66. Chapter 2 Ethernet Port 2-39 0.HTM 2.HTM Figure 2.10.1 Figure 2.10.2 2.10.2 Control and Monitoring Components in the Default HTML Files The 0.HTM and 2.HTM files both include the same components but they are arranged and configured differently with a different background image set. Bo th files have the following components available: • Background Image, which can be defined in the HTML file • LCD Display, which will display whatever the PLC program is displaying on an LCD screen • 8 internal relay bits as buttons with configurable label names • 4 Data Memory variables (DM[1]-DM[ 4]) with configurable label names • Continuous Update checkbox with cycle count and refresh button Background Image: In the 0.HTM file, the background image is set to t he blue border picture and all the other components are positioned inside the blue border. The background image should be a JPEG file loaded from any weserver. The 0.HTM and 2.HTM background images are loaded from the TRI-PLC server. LCD Display: Figure 2.10.3 The LCD display is positioned at the top of the image in 0.HTM and it is displaying a world clock, which is controlled by the “i-Relay.PC6” PLC program. The display in the HTML files is showing the 4-line by 20- character virtual LCD display controlled by t he Nano-10 program using the SETLCD command. This means you can configure your PLC program to disp lay up to four lines and up to 20 characters on each line.

2. USER MANUAL Page i Copyright Notice and Disclaimer All rights reserved. With the exception of legitimate TRi PLC users, who may print or make copies of this manual for reference purposes, no parts of this manual may be reproduced in any form without the express written permission of TRi. Triangle Research International, Inc. (TRi) makes no representations or warranties with respect to the contents hereof. In addition, information contained herein is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, TRi assumes no responsibility for errors or omissions or any damages resulting from the use of the information contained in this publication. MS-DOS and Windows are trademarks of Microsoft Inc. MODBUS is a trademark of Mobdus.org All other trademarks belong to their respective owners. Revision Sheet Release No. Date Revision Description Rev. 1 4/13/2010 Added description of RC Serv o Control in Chapter 11. Corrected wrong or inconsistent numbering of figures. Rev. 2 6/22/2010 Corrected header error on Chapter 16. Rev. 3 11/10/2010 Change all <REMOTE> tag to <REMOTEFS>. Rev. 4 6/22/2012 Added Chapter 18 and 19. Reformatted headers and footers. Rev. 4.1 7/19/2012 Revised di gital output driver specs Rev. 5 5/01/2013 Revised Chapter 2 lay out. Modified Section 1.7 and Chapter 17 Rev. 6 9/03/2013 Added installation position wa rning in regards to updated relay specs.

29. Chapter 2 Ethernet Port 2-2 Notes to New Users If this is the first time that you are configuring the PLC’s Ethernet port, and if your PC is not on the same default subnet of 192.168.1.xxx as the Nano-10, then you may not be able to communicate with the Nano-10 Ethernet port using its default IP addre ss of 192.168.1.5:9080. In t hat case you can only communicate with the Nano-10 PLC through a se rial port connection, until you have changed the PLC’s IP address to match that of your network’s address. However, In order to communicate with the N ano-10 PLC via serial port connection, you will need to run the TLServer software on your PC. TLServer acts as a serial-t o-Ethernet gateway such that the commands it receives from I-TRiLOGI software vi a TCP/IP are conveyed to the PLC via the PC’s serial port, and vice versa Since the Nano-10 PLC only has 1 RS485 serial port, this will require that the PC running TLServer to have an RS485 interface. However, most new PC s today no longer have any built-in serial port. Thus, the easiest way to install an RS485 interf ace on the PC is to purchase a USB to RS485 converter (e.g. http://www.tri-plc.com/U-485.htm ). Since the USB toRS485 converter is powered by USB port, you can simply plug the converter into the PC’s USB port and connect two wires to the Nano-10’s RS485 port and immediately communicate with the PLC via serial communication. Before you make any changes to the PLC's Ethernet configuration parameters, it is a good idea to retrieve the current settings. You can do this by c licking on the “Retrieve Parameters from PLC” button and answer "Yes" when prompted. After you have retrieved the existing parameters from the PLC, you will see that various fields in the configuration software screen are filled up. The following sections describe the significance of each field. Important: If you make changes to any of these fields , you must select the “Reboot PLC After Save” checkbox before clicking the “Save Parameters to PLC button” so that the new parameters will be saved to the flash memory of the PLC and the new parameter can take effect immediately. Note that the Nano-10 PLC has two built-in “Server” programs that listen on a few different ports on the PLC for incoming TCP/IP request packets: 1) The FServer supports the TRi proprietary pr ograms such as the i-TRiLOGI software and TRi- ExcelLink program. By default the FS erver listens on the default port 9080. 2) A MODBUS/TCP server that listens on port #502 and supports the industry standard MODBUS/TCP protocols. Note: • These two servers share the same Ethernet por t and therefore the same IP address and gateway addresses described in the following sections. • Nano-10 PLCs host both the FServer and the Modbus /TCP servers, each providing multiple simultaneous connections to external clients. This means that it is possible to connect multiple TRiLOGI, ExcelLink and Modbus/TCP clients to the PLC, all at the same time! Section 2.1.5 shows you how you can change the maximum number of connections for each server.

79. Chapter 4 Timers, Counters & Sequencers 4-1 4 TIMERS, COUNTERS AND SEQUENCERS 4.1 Introduction The Nano-10 PLC supports 64 timers with 0.1s or 0. 01s time base, and 64 counters with range of 0 to 9999. You can define timer #1 to #n to become high s peed timers (with 0.01s time base) by executing the “ HSTIMER n “ command (i.e. High Speed Timer always start from timer #1 up to timer #n). 4.1.1 Timer Coils A timer is a special kind of relay that, when its coil is energized, must wait for a fixed length of time before closing its contact. The waiting time is dependent on the "Set Value" (SV) of the timer. Once the delay time is up, the timer's N.O. contacts will be closed for as long as its coil remains energized. When the coil is de-energized (i.e. turned OFF), all the timer's N. O. contacts will be opened immediately. However, if the coil is de-energized before the delay time is up, the timer will be reset and its contact will never be closed. When the last aborted timer is re-energized, the delay timing will restart and use the SV of the timer rather than continue from the last aborted timing operation. 4.1.2 Counter Coils A counter is also a special kind of relay that has a programmable Set Value (SV). When a counter coil is energized for the first time after a reset, it will load the value of SV-1 into its count register. From there on, every time the counter coil is energized from OFF to ON, the counter decrements its count register value by 1. Note that the coil must go through an OFF to ON cycle in order to decrement the counter. If the coil remains energized all the time, the counter will not dec rement. Hence, a counter is suitable for counting the number of cycles an operation has gone through. W hen the count register hits zero, all of the counter's N.O. contacts will be tur ned ON. These counter contacts will remain ON regardless of whether the counter's coil is energized or not. To turn OFF t hese contacts, you have to reset the counter using a special counter rese t function [RSctr]. 4.1.3 Sequencers A sequencer is a highly convenient feature for progra mming machines or processes that operate in fixed sequences. These machines operate in a fixed, clearly distinguishable step-by-s tep order, starting from an initial step, progressing to the fi nal step, and then restarting from the initial step again. At any moment, there must be a "step counter" to keep track of t he current step number. Every step of the sequence must be accessible and can be used to trigger some action, su ch as turning on a motor or solenoid valve, etc. As an example, a simple Pick-and-Place machine that can pick up a component from point 'A' to point 'B' may operate as follow: Step # Action 0 Wait for "Start" signal 1 Forward arm at point A 2 Close gripper 3 Retract arm at point A 4 Move arm to point B 5 Forward arm at point B 6 Open gripper 7 Retract arm at point B 8 Move arm to point A

109. Chapter 9 Interrupts 9-3 When the PTI timer times up, the CPU will suspend the execution of the ladder l ogic or a (non-interrupt) TBASIC function and immediately calls up the custom function defined by the INTRDEF 18 statement. However, if the CPU is currently ex ecuting a user-interrupt service rout ine (e.g. an input interrupt or HSC interrupt), then the CPU will have to complete the current interrupt service routine before it will run the PTI interrupt function. Notes: 1) Limit the use of PTI only for critical code that requires precise ti ming between two events. Program bugs that occur due to problems in the PTI interrupt routine may be quite hard to debug. 2) For normal periodic routines, such as checki ng for temperature or checking serial port for incoming bar code data every few seconds, it is better to use the system clock pulses e.g. “Clk:1.0s” to trigger a {dCusF}. 3) Always try to keep your interrupt service r outine short and simple and ensure that it will not end up in an endless loop. The TBASIC custom func tion execution time should be much shorter than the period of the PTI events. Ot herwise, you may find that the CPU will be spending most of its time servicing the PTI interrupt routine, leavi ng very little time for scanning the ladder program, and that will have an adverse im pact on the CPU performance. 9.3 Power Failure Interrupt (PFI) The Nano-10 CPU has a built-in power failure sensing circuit that will call a custom function when it detects an impending power failure. This allows you to perform such critical function such as saving critical data to the PLC’s non-volatile memory (see Section 1.6.2 ) just before power failure. The syntax for the PFI is as follow: INTRDEF 17 , cfnum, 1 ‘ Interrupt 17 is reserved for PFI cfnum - custom function number to ex ecute when PTI event takes place. E.g. INTRDEF 17, 256, 1 ‘ call function #256 when power failure occur.

199. Chapter 18 Extended File System 18-12 18.7 Uploading File From PLC to FileZilla FTP Server Directory 18.7.1 Overview of The FTP Protocol The FTP protocol requires two socket-connections between the devices performing the file transfer. One connection is the “command” channel where FTP comm ands such as STOR or DELE and the responses are sent as plain ASCII text strings between the FTP client and the FTP server. The second connection is the “data” channel where only the file content or the file directory data are being transferred. There are two transfer modes: “Active” mode and “P assive” mode. Active mode requires that the server establish a data connection back to the client. Passive mode on the other hand, requires that the client also be the one to establish the data connection. i. e. For passive mode, both the command and the data connections are performed by the client (the PLC in this case). The PLC has been designed to use only passive mode to transfer file to the FTP server. Passive mode is preferred because that is the only way to transfer file if the FTP Server is located on the Internet. The alternative active mode transfer requires the server to make a data connection back to the PLC that is sitting behind a router firewall, and that can be problematic unless the router is specifically configured to forward the data port to the PLC. 18.7.2 PLC FTP Upload Procedure In order to upload file to the FTP Server , the PLC would use the PRINT #4 “<TCPConnect xxx.xxx.xxx.xxx:21>” command tag to connect to the FTP server port 21 to establish the “command” connection to the FTP Server. The PLC uses its PR INT #4 to send and INPUT$(4) to receive ASCII text strings from the FTP server via the command c hannel. The PLC would then send the command “PASV” to inform the FTP server that it wants to transfer a file in passive mode. At this point you can use the PRINT #4 command to send any valid FTP command to the server, including changing directory (CWD command – make sure the di rectory exist), deleting a file (DELE command – beware of what you are deleting!) etc. When the PLC is ready to start a file transfer to the FTP server, the server will in turn provide the PLC with the port number that it has opened for the PLC to connect to establish a data connection. Upon receiving this port number the PLC will make a second TCP connection to the given port and then the actual file transfer will begin. A new, network service command tag named “FTPUPLD ” handles the negotiation between the FTP Server and the PLC as well as handling of the data transfer from the PLC to the FTP server. The following is the syntax: PRINT #4 “<FTPUPLD Zxxx.yyy [destination file name]>” Where: Zxxx.yyy is the file name of the extended file that the PLC has access to. The [destination file name] can be any legal name acceptable to the serv er so you can attach a date or time stamp to the file name for easy identifications. When the above <FTPUPLD> command is run, the PLC will send the actual “STOR” command in the background to the FTP server and then obtain the port num ber from the server and it will then make a data connection to it, and file transfer can then begin.

53. Chapter 2 Ethernet Port 2-26 Once the connection is successfully established, you can begin to use the built-in TBASIC commands: READMODBUS, WRITEMODBUS, R EADMB2 and WRITEMB2 operating on virtual comm. port #4 to send MODBUS commands and receive processed dres ponses from a remote MODBUS/TCP Server!! This greatly simplifies your programming task, since it is very similar to communicating with a Modbus RTU slave that is connected to the serial port #1, 2, or 3. Although in this case, the Modbus/TCP device could be located in the other hemisphere and connected via the Internet! The full syntax for the <MBTCP CONNECT> tag is described below: Format: <MBTCPCONNECT [IP address:502] of another Modbus/TCP Server> Response: <CONNECTED> Successfully connected to the Modbus/TCP server of the specified IP address. ERR:05-Prev Conn.ON Another NS command has been executed and left the client socket opened but did not execute the PRINT #4 “</>” to close the client socket. ERR:04-Not Connected Failed to connect to the targeted Modbus/TCP Server STATUS(3): This TBASIC function returns 1 if the Modbus/TCP connection is live and returns 0 if the connection has ended. Y ou can test the connection status to determine if the connection is still alive. Description: This service allows your PLC to l og in to any device that supports a Modbus/TCP server and is connected to t he same LAN or to the Internet. Of course, you may also use it to connec t to another Nano-10 or F-Series PLC on the Internet since every these PLCs all have MODBUS/TCP server too. Once the connection with the Modbus/TCP server is established, the CPU will return the response string <CONNECTED> to the users program, which can read it using the INPUT$(4) function. The STATUS(3) function can also be used to determine if the connection is successful and alive. When the program gets the confirmed c onnection, it can then use any one of the four TBASIC commands: READMO DBUS, WRITEMODBUS, READMB2, WRITEMB2 to read or write data to the remote devices via the virtual comm. port #4, as if a Modbus slave device has been locally connected to a COMM4 port of this PLC. (You do not need to distinguish between Modbus ASCII and RTU in this case, simply use comm. port #4 in your all your commands). Multiple Modbus master commands can be sent as long as the connection is live. You can test the connection stat us by checking the result of the STATUS(3) function at any time. Once all the command exchanges have been completed, you should send a </> tag to close the client connection to t he remote server so that other NS commands can be executed in ot her parts of the program. Example: Please refer to the “fnMBTCP”, “f nRdMBTCP” and “fnWrtMBTCP” custom functions in the demo program: “TestEthernet.PC6”.

62. Chapter 2 Ethernet Port 2-35 version r77 onwards the following MIME type ar e also supported: ZIP, XLS. Any unsupported extension will be converted to “???”. • There is 2Kb of reserved space for each File “0” through “9” and “A” through “T” • If the HTML file is more than 2kb, t hen more than one file space will be used. • If a file takes up multiple 2kb locations and another file is added within one of the used locations, the larger file will be corrupted and no longer accessible. For Example, the file “0.HTM” is about 3.5kb so it takes up two 2kb locations (“0” and “1”), which is why the second preloaded file is “2.HTM”. If you attempt ed to add a file named “1.HTM”, it would corrupt “0.HTM” but “1.HTM” would work. Uploading Files When you are ready to transfer your modified .HTM file, you just need to drag it from the folder it is saved to on your computer into the bottom right window of FileZilla where the current files are shown. If you didn’t change the filename, you can tell the new file to overwrite the old file. Otherwise, you will need to manually delete the old file “0.HTM” or “2.HTM” from the Nano-10 web server in FileZilla by right clicking on it and selecting Delete. 2.9.4 Download the Web Page Files If you have modified the original “0.htm” and “2.htm” or “N.JS” files that were preloaded in the Nano-10 server and need to retrieve the original files, it is possible to download them from the following web page: http://www.tri-plc.com/nano/updates/nanoHMI.zip Note that the “N.JS” file within the above zip f ile is password protected, so you will need the password to open it. This information is stored at the begi nning of the N.JS file, which can be opened with any standard text editor such as Notepad. If you have lo st this file, then you will need to email support ( support@tri-plc.com ) with proof of purchase of the Nano- 10 PLC and the password will be provided. 2.9.5 Troubleshooting FileZilla File Transfer Problems 1) FileZilla appears to have connected to the PL C’s FTP server, but it cannot list the directory or transfer any file to the PLC. The reason almost always have something to do with the PC’s software firewall. You need to configure the Windows Firewall (and any software ant i-virus firewall on your PC) to allow incoming connections to the FileZilla program . You can try to disable the firewall temporarily to test the connection and if does work, you can then be sure that it is the firewall configuration issue that need to be resolved. The following paragraphs explain how the firewall c an affect the FTP communications for those who are interested : The File Transfer Protocol is unique in that it requires two socket connections between two devices that are communicating via FTP. When FileZilla is connected to the PLC’s FTP server on port 21, it establishes a “command” channel and it is thru this command channel that FTP commands are being sent. However, once the command channel is established (F ileZilla is “connected” to the FTP Server), a second socket connection (known as the “data c hannel”) needs to be made between FileZilla and the

100. Chapter 7 High Speed Counters 7-2 7.2 Enhanced Quadrature Decoding The default method in which the PLC handles quadr ature signals as described above is somewhat simplistic. It does not take into consideration the “jiggling” effect that occurs when the encoder is positioned at the transition edge of a phase. Mechanical vi bration could cause multiple counts if the rotor shaft “jiggles” at the transition edge of the phase, resu lting in multiple triggering of the counter. This simplistic implementation, however , does have the advantage that the HSC can also be used for single- phase high-speed counting. For the Nano-10 PLC, an enhanced quadrature decoding rout ine is provided which will lock out multiple counting by examining the co-relationship between the two phases. You can configure the Nano-10 PLC to use the enhanced quadrature counting by us ing the SETSYSTEM command, as follows: SETSYTEM 4, n The value of n at bit 0, 1, and 2 respectively defines if the HSC channel 1, 2, and 3 is to run in “Simple” (when the bit is 0) or “Enhanced” (w hen the bit is 1) mode. As such: N (bit 1,0) HSC #2 HSC #1 0 (00) Simple Simple 1 (01) Simple Enhanced 2 (10) Enhanced Simple 3 (11) Enhanced Enhanced 7.3 Configuring HSC as x1, x2 or x4 Counters By default the HSC in Nano-10 only increment or decrement the counter by 1 for each full cycle of pulses. However, since there are two pulse trains and ther efore a full cycle produces 4 rising and falling edges in total. It is possible to configure the HSC to either c ount by 1 for every two transit ion edges (x2) or to count every transition edge (x4). A new, special SETSYSTEM 24, N command can be used to configure the 2 channels of HSCs on the Nano-10 PLC so that they can become simple, x1, x2 or x4 quadrature high speed counters. This new command (not available to T100M+ PLCs) overwr ites the settings performed by SETSYSTEM 4, xx mentioned in Section 7.2 and is the new, pref erred method for configuring the HSC channel. N is defined as a two-byte integer: Upper byte : channel number (&H01 or &H02) Lower byte : &H00 =s imple; &H01=x1; &H 02=x2; &H03= x4 E.g. To define HSC #1 as x2 HSC, N = &H0102 To define HSC #2 as x4 HSC, N = &H0203 An example program: “HSC-x4.PC6” that uses this command is included in the “Nano10Samples.zip” file that you can download from: http://www.tri-plc.com/trilogi/Nano10Samples.zip .

181. Chapter 17 I2C Communication 17-2 single mounting hole on other end of the I2C-FRTC m odule, which provides support to the module via a nylon standoff included in the I2C-FRTC package. Y ou should also find a matching hole on the Nano-10 PLC which is aligned with the mounting hole on t he I2C-FRTC module. The nylon standoff has two supporting catches that will mate to the mounti ng holes on both the I2C-FRTC and the PLC and it provides a fairly strong suppor t to the I2C-FRTC module. 17.1.2 I2C-FRTC Hardware Overview Device Logic Power +2V to +15V 2x5 Male Header Pins Mounting hole for Standoff SCL V+ SDA GND The I2C-FRTC modules adds the fo llowing hardware to the Nano-10: a. I 2 C communication interface chip b. 11K words of FRAM memory, Expand program memory to 16K words, DM[1001] to DM[4000] and a Battery-backed Real Time Clock (RTC) * c. 128K bytes of I2C EEPROM memory (M24M01) – Expandable to 256K bytes by soldering an additional M24M01 chip next to it on the blank solder pad. d. Additional Analog output channel #3 and #4 (0-5V only) * The FRAM memory and battery-backed RTC on the I2C-FRTC is identical to that found on the FRAM-RTC module. I2C-FRTC = FRAM-RTC + additional I2C hardware. The I2C interface chip allows the Nano-10 PLC to interf ace to external I2C devices that are of different logic voltage level from the PLC. You must connect t he positive logic voltage of the target device to the “V+” terminal shown in the above diagram and 0V of the target device to the “GND” terminal. Then connect the SCL and SDA signal between the I2C-FR TC module and target device and you are good to go. A 1 M bits I2C EEPROM chip (M24M01) is also included in the I2C-FRTC module. This allows you to use the new I2C_READ and I2C_WRITE command (available onl y in I-TRiLOGI version 6.40 or later) to store and retrieve up to 128K bytes of non-volatile EEPROM memory to store additional data. This will be described in the next section. 17.1.3 I2C-FRTC Availability The I2C-FRTC is intended for advanced users only, so it may not be available for general online sales in the shopping cart system. If you wish to obtain pric ing or would like to place an order, please contact sales directly via email (sales@tri-plc.com) or phone (877 874 7527) to inquire. 17.2 New TBASIC Commands: I2C_READ, I2C_WRITE and I2C_STOP

49. Chapter 2 Ethernet Port 2-22 2.5 MODBUS/TCP Server and Client Connection The Nano-10 PLC supports both the FServer and the industry standard MODBUS/TCP server simultaneously. This means that all Nano-10 PLCs are r eady to interface directly with many third party industrial control devices that support the MODBUS /TCP protocol. These include the SCADA software, HMI hardware, OPC Server, HVAC controllers and many other industrial control devices. In addition, the Nano-10 PLC can be used both as a MODBUS/TCP SERVER as well as a MODBUS/TCP CLIENT simultaneously . This means that the Nano-10 PLC can readily read data from any device that has a MODBUS/TCP server, such as: flow meters , AC/DC drives, HVAC elements, RTUs, network sensors etc. It is also possible to perform peer-to-peer networking with other MODBUS/TCP controllers (e.g. another Nano-10 or F-Se ries PLC) over a LAN or over the Internet! 2.5.1 Connecting To The PLC’s MODBUS/TCP Server By default, the Nano-10 CPU supports up to 3 simultaneous MODBUS/TCP connections. You can change the number of simultaneous MODBUS/TCP connecti ons from 2 to 5 using the “Ethernet Basic Configuration Tool” program as described in Section 2.1. The PLC will listen on the default, well-known MODBUS /TCP port #502 for one or all of the connections. However, it is also possible to define a secondar y port number using the Nano-10 Ethernet Configuration program as described in Section 2.1.7 (Note that if you define a se condary port number, then only one of the MODBUS/TCP connection will listen on port #502 and the remaining connections will only be listening on the secondary port number.) If you have a MODBUS/TCP client program (e.g. you can download a trial version of “Modbus Poll” from http://www.modbustools.com for testing), you simply specify the Nano-10 IP address and connect to it. Once connected, you will then be able to read from or write to most of the Nano-10 PLC’s internal data from the MODBUS/TCP client. The PLC’s I/O and in ternal variables are mapped to the MODBUS device space according to Table 2.1. 2.5.1.1 Bit Address Mapping All the Nano-10 PLC I/O bits are mapped identically to both the MODBUS “0x” and 1x space. The bit register offset is shown in the last column of Table 2.1. Although MODBUS names the “0x” address space as “Coil” (which means output bits) and the “1x” address space as “Input Status” (which means input bits only), the Nano-10 PLC treats both spaces the same. Some MODBUS drivers only allow a “read” from 0x space and a “write” to 1x space but you still use the same offset shown on Table 2.1. Example: 1. To map an element to the PLC Input 4, you select the MODBUS regi ster address 0-0004. You can also map the element to the PLC’s output #2. In that case, you should map it to MODBUS register address 0-0258. 2. To map an HMI toggle switch symbol to the PLCs input #4, if you are re stricted to select only MODBUS 1x address space, then you will have to map the switch to 1-0004, and, likewise, you can map the switch to output #2 using the MOB DUS address 1-0258. However, if the driver allows the switch to be mapped to the 0x spac e then you can use MODBUS register space 1- 0258 and 0-0258 for the output #2 mapping with identical result.

16. Chapter 1 Installation Guide 1-4 Please refer to Section 1.4 regarding the specificati ons of the Digital Inputs. The specifications and programming methods for the analog inputs are detailed in Chapter 5 of this manual. Chapter 14 describes the use of the RS485 serial communication port. Note that the screw terminal block is actually detachable from its solder ed pins to the PCB, which permits easy replacement of the controller board when necessary, as shown below: wire Insulated crimp ferrules screw Ti g htenin g Figure 1.3 – Using Ferrules to connect to screw terminal block Although wires may be connected directly to the screw terminal, insulated crimp ferrules should be used to provide a good end termination to multi-stranded wires. Use of ferrules reduces the possibility of stray wire strands short-circuiting adjacent terminals and their use is, therefore, highly recommended. 1.2.2 Power Supply and Digital Output Ports The Nano-10 power supply and 4 digital outputs are av ailable on the detachable screw terminal block along the top edge of the Nano-10 PCB: 24V 0V OUT1 OUT2 OUT3 OUT4 The following sections describe the specifications of the PLC power supply as well as digital I/Os. 1.3 Power Supply The Nano-10 PLC requires a single regulated, 24V (+/- 5% ripple) DC power supply. The PLC typically consumes less than 100mA and thus you may also us e the same power supply to power the PLC and a small output load, as long as the total load curr ent is within the power supply maximum limit. If the loads require higher current, then it is re commended that a separate power supply be used for the output load. Note that if you choose to use two separate power supplies for non-isolated output (#1 and #2), their 0V terminals should be tied together to provide a common ground reference for the two power supplies. The two power supplies are also recommended to be of the same output volt age. Otherwise, if the voltage of the load power is lower than the voltage of the CPU power, the out put LED will light up even when the output driver is not energized. This is bec ause the current could flow out of the PLC’s output

142. Chapter 14 Serial Communications 14-10 output #2 using MOBDUS address 1-0258. But if the driver allows the switch to be mapped to 0x space, then you can use MODBUS register space 0-0004 and 0-0258 for the mapping, with identical results. Example 2 – Standard Modbus Variation : To map a lamp symbol to PLC Input 4, you select the MODBUS register addr ess 0-0003. You can also map a lamp symbol to the PLC’s output #2. In that case, you should map it to MODBUS register address 0-0257. To map a toggle switch symbol to the PLC input #4, if you are restricted to select only MODBUS 1x address space, then you will have to map the switch to 1-0003, and likewise you can map the switch to output #2 using MOBDUS address 1-0257. But if the driver allows the switch to be mapped to 0x space, then you can use MODBUS register space 0-0003 and 0-0257 for the mapping, with identical results. 14.6.1.2 WORD ADDRESS MAPPING As shown in Table 14.1, to access DM[1] from the PLC, you use MODBUS address space 4-1001 and so on. To access the Real Time Clock Hour data (TIM E[1]), use 4-0513. The I/O channels can also be read or written as 16-bit words by using the addresses from 4-0001 to 4-0320. Some MODBUS drivers (such as National Instrument s “Lookout” software) even allow you to manipulate individual bit within a 16-bit word. So it is also possible to map individual I/O bits to the “4x” address space. E.g. Input bit #1 can be mapped to 4-0001.1 and output bit #2 is mapped to 4-0257.2, etc. This is how it is shown in Table 14.1. However, if y ou do not need to manipulate the individual bit then you simply use the address 4-0001 to access the syst em variable INPUT[1] and address 4-0257 to access the system variable OUTPUT[1]. Note that INPUT[ 1] and OUTPUT[1] are TBASIC system variables and they each contain 16 bits that reflec t the on/off status of the actual physical or internal input and output bits #1 to #16. 14.6.2 MODBUS RTU Protocol Support The Nano-10 PLC also supports the MODBUS RTU protocol. The difference between the ASCII and RTU protocols is that the latter transmits binary data dire ctly instead of converting one byte of binary data into two ASCII characters. A me ssage frame is determined by the silent interval of 3.5 character times between characters received at the COMM port. Ot her than that, the function codes and memory mappings are identical to the MODBUS ASCII protoc ol. Table 14.1 therefore applies to the MODBUS RTU protocol as well. MOBBUS RTU has the following command and response format: Start Address Function Data CRC 16 END Silence of 3.5 char times 1 byte 1 byte # byte 2 bytes Silence of 3.5 char times The following Function Codes are supported: 01/02 Read I/O bit (Use Bit Address Mapping in Table 14.1) 03/04 Read I/O Word registers 05 Force I/O Bit (Use Bit Address Mapping in Table 14.1). 06 Preset Single Word Register 16 Preset Multiple Word Registers

17. Chapter 1 Installation Guide 1-5 into the (lower voltage) load power supply and therefor e light up the LED. This can be very confusing to users even though it should not dam age the LED. Should this happen, you will need to add a series diode to the output terminal to block the output LE D currents from flowing through the load and back to the load power. Please use only an industrial grade linear or swit ching regulated power supply from established manufacturers. Using a poorly made switching power supply can give rise to a lot of problems if the noisy high frequency switching signals are not filtered properly. Note : If your application demands very stable analog I/Os you should choose a linear power supply instead of a switching power source for the CPU. Always place the power supply as close to the PL C as possible and use a separate pair of wires to connect the power to the PLC. Keep the power supply wires as short as possible and avoid running them along side high current cables in the same cabl e conduit. The Nano-10 PLC will enter a shut down procedure when the power supply voltage dips below approximately 16V. It is a good idea to connect a 470 μ F to 1000 μ F, 50V electrolytic capacitor near t he power supply connector to suppress any undesirable voltage glitches from conducting into the PLC. If other high current devices, such as a frequency inverter, were to affect the operation of the PLC, you should then also connect a diode before the capacitor to prevent reverse current which might flow back to the power supply, as shown in the following diagram: +24V DC Power Supply +24V 0V Surge suppressor (Recommended) 1N4007 470uF 50V Figure 1.4 If the AC main is affected by nearby machines draw ing large amounts of current (such as large three- phase motors), you should use a surge-suppressor to prevent any unwanted noise voltage from being coupled into the Nano-10 power supply. The required current rating for the power supply depends mainly on the total output current, taking into considerat ion the peak current demand and the duty cycle of the operation. 1.4 Digital Input Circuits All 4 digital inputs are NPN type (with green colored LE D indicators), meaning that to turn ON an input, you should connect it to the low-voltage rail (0V termi nal) of the power supply as shown in the following diagram. The input numbers are marked on the PCB al ongside the side of the screw terminal block. All digital inputs are directly programmable in Ladder Logic, as well as in TBASIC custom functions. Some programming examples are detailed in “ Chapter 3 –Digital I/Os and Internal Relays ”

20. Chapter 1 Installation Guide 1-8 result in a large dose of noise being introduced in to the system and may have undesirable effects. For DC we recommend using a fast recovery diode such as UF4001 to UF4007 connected as shown in the above diagram to absorb the inductive noise. For AC loads (output #3 & #4) you’ll need to select a su itable Metal Oxide Varistor (MOVs) to protect the relay contacts, as shown below: A C Powe r Metal Oxide Varistor (MOV) ( b ) NANO-10 Relay Output ~ 1.6 Program and Data Memory Default Configuration With FRAM-RTC Add On Program Memory 8000 words* 16000 words Non-Volatile Data Storage Integers (16-bit) Strings (40 chars max) 1024 words 51 11000 words 549 RAM Data Memory DM A to Z (32-bit) A$ to Z$ (70 chars string) EMINT[], EMLINT[], EMEVENT[] 1000 words (volatile) Yes (volatile) Yes (volatile) Yes (volatile) 4000 (non-volatile) Yes (J1:non-volatile) Yes (J1:non-volatile) Yes (volatile) * Each word is 16-bit (two bytes) 1.6.1 Program Memory Standard Nano-10 PLC can store up to 8000 (16-bit) word s of program memory stored in the CPU Flash memory area. This can be expanded to 16,000 word s with the addition of an optional FRAM-RTC module. Each ladder logic element (contacts or coils) takes up 1 word of memory. A TBASIC statement or function takes up half a word to four or five words, depending on the number of param eters the statement or function has. The program memory can be erased and reprogra mmed more than one hundred thousand times, which is a limit that you are unlikely to ever reach. Ho wever, unlike on the T100M+ PLCs, the program memory of the Nano-10 is not stored in an easily removable IC , so it is not possible to upgrade your customer’s PLC program by swapping out a single IC (suc h as the M2017P or M2018P on a T100M+ PLC).

97. Chapter 6 Special Digital I/Os 6-1 6 SPECIAL DIGITAL I/O S All of the 4 digital inputs of the Nano-10 PLC can be configured as “special inputs” such as High Speed Counters, Interrupts and Pulse Measurement. 2 of t he 4 digital outputs can also be configured as PWM, or stepper motor controller pulse-outputs. If these are not used as special I/Os, then they can be used as ordinary ON/OFF type I/O in the ladder diagram. The High Speed Counters and Pulse measurement inputs share physical inputs, but they can be used simultaneously as HSC and PMON (unlike M-Series). Note that if any other two special functions share the same I/O then only one of them can be active at any one time. The location of these special I/Os are tabulated as follows: Special Inputs Input # High Speed Counter Interrupt Pulse Measurement 1 Ch #1: Phase A Ch #1 Ch #1 2 Ch #1: Phase B Ch #2 Ch #2 3 Ch #2: Phase A Ch #3 Ch #3 4 Ch #2: Phase B Ch #4 Ch #4 Note: While inputs 1-4 can be used simultaneously as High Speed Counters and Pulse Measurement pins, any pins defined as interrupts can only be interrupts. Special Outputs Output # Stepper Pulse/Dir outputs PWM output 1 Ch #1 Direction Ch #1 2 Ch #1 Pulse Ch #2 3 - - 4 - - These special I/Os therefore share the same electric al specifications as the ON/OFF type I/Os, which have already been described in the Chapter 1 - Installa tion Guide. We will describe each of these special I/Os in greater details in the following chapters.

154. Chapter 15 Host Link Communication Protocol 15-8 PLCs by executing the “NETCMD$” function or the “READMODBUS” or the “WRITEMODBUS” commands (the latter two are for communicating using MODBUS protocols only and are covered in Section 14.8 ). Only the master can issue commands to the slave PLCs. To transmit a command, the master controller must first enable its RS-485 transmitter and then s end a multi-point command to the network of controllers. After the last stop bit has been sent, the master controller must re linquish the RS485 bus by disabling its RS485 transmitter and enabling its receiver. At this point the master will wait for a response from the slave controller that is being addressed. Since the command c ontains the ID of the target controller, only the controller with the correct ID would respond to the command by sending back a response string. For the network to function properly, it is obvious that no two nodes can have the same ID . You can use the “Setup Serial Port” command in TLServer to set the ID for each PLC on the node. You can also use the "IW” Host Link command to set the device ID. Also, all nodes must be configured to the same baud rate and communication format. Care should be taken to ensure that the power supplie s for all the controllers are properly isolated from the main so that no large ground potential differenc es exist between any controllers on the network. 15.5.4 Multi-Master (Peer-to-P eer) RS485 Networking Fundamentals The built-in Ethernet port of Nano-10 PLC inherent ly supports multi-master, peer-to-peer network connection without any arbitration. T herefore if there is a need to perfo rm peer-to-peer networking, it will be much easier to do it via the Ethernet port. However, if the Nano-10 is not connected to LAN or a low cost local networking solution via RS485 is desir ed, then the following discussion will be relevant. Since any F, M or Nano PLC is capable of sendi ng out network commands, the obvious question is whether multiple masters are allowed on the RS485 net work? It is possible to have multiple masters on a single RS485 network provided the iss ues of collision and arbitration are taken care of. There are several means to achieve these objectives. 15.5.4.1 Multiple Access with Collision Detection There is nothing to stop any PLC from sending out hos t-link commands to other PLCs. However, if more than one PLC simultaneously enables their transmi tters and send out host-link commands, then the signals will conflict and the messages will be garbled up. If the network traffic is low, then the solution may be a matter of having the master check for the correct response after sending out a command string. If there is error in the response string, the master should back off the network for a short while (use different timing for different PLCs) and then re-s end the command until a correct response string is obtained. Fortunately, the “NETCMD$” function of these PLCs always checks the in tegrity of the response string for correct FCS (Frame Check Sequence) characters bef ore returning the string (Please refer to the Programmer’s Reference for detail descr iption of the NETCMD$( ) function). However, the program must still check the following item s in the response string to verify that the string returned from NETCMD$( ) function indeed comes fr om the PLC that it had talked to and not from another PLC (which tries to send a command to someone else): i) The ID is correct ii) The header is identical to the command string iii) The length of response string is correct. Pros and Cons: This method does not incur any hardware cost, but it requires careful programming and strict checking of the response st ring and hence requires more effort to program. It is also the least

177. Chapter 16 Host Link Command/Response Format 16-20 16.41 Testing of Host Link Commands You can try out all the Host-Link commands using TL Server’s “Serial Communication Setup”. However, TLServer is designed to accept only multi- point protocol commands except the “IR * ” command (which is necessary to obtain the device ID from the PLC). You, therefore, have to enter all your host link commands in multi-point format. Since the multi-point protocol requires an FCS (f rame check sequence) character to be appended to the end of the command string, you may be able to get around it by using the “wildcard” FCS “00” in place of the actual FCS. E.g. To read input channel 02 fr om a PLC with ID = 01, you can enter the command string as “ @01RI0200* ”. For TLServer version 2.1 and above, there is an “FCS” button that lets you compute the actual FCS for the string in the command string text field. You can then use the act ual FCS with the command string to completely test your command. E.g. If you type in the string “ @01RI02 ” in the command string (but do not press Enter) and then click on the “F CS” button, the FCS for this string will be computed and shown as “FCS = 58”, as shown in the following figure: You now can enter the complete command string as “ @01RI0258* ” and it will be accepted by TLServer. (Note: If the PLC has executed a SETPROTOCOL n ,5 to configure its serial port into pure native mode, then wildcard FCS will not be accepted and you must use the actual FCS with your command. The FCS button makes it much easier than computation by hand). If you have changed some data using the write command, then activate On-Line Monitoring and examine the changes made using the “View Variables” window.

23. Chapter 1 Installation Guide 1-11 1.6.3 RAM Data Memory All the TBASIC variables used in the Nano-10 PLC: A to Z, DM[1] to DM[1000] and string A$ to Z$, EMINT[1] to EMINT[16] and EMLINT[1] to EMLINT [16] are normally stored in the CPU RAM area and therefore they fall into the categor y of “volatile data memory” - meani ng when you turn off power to the PLC the memory content will be lost and they will be reset to zero when the PLC is powered up again. Hence, you should use the SAVE_EEP command to save any data that must be pr eserved after the PLC is powered down. Also note that in a standard Nano-10 PLC, only the first 1000 DM memory locations are available. This means that your program would not be able to access any DM beyond DM[1] to DM[1000]. Reading from DM[1001]-DM[4000] will always return 0 and writing to these address will be ignored. With FRAM-RTC With addition of the FRAM-RTC module, the amount of DM memory is increased to 4000 words, making it the same as those on standard T100M+ or F-series PLCs. Also, since some FRAM memory area is reserved to store these variables, it is possible to make variables A to Z, A$ to Z$ and DM[1] to DM[4000] non- volatile by shorting Jump J1 on the Nano-10 circuit board (see Section 1.7). This provides for additional non-volatile data storage to applications that need them. 1.7 Jumpers J1 & J4 Two jumpers, J1 and J4, are provided on the Nano-10 PL C in place of the DIP switches #1 & #4 that you may already be familiar with on the M and F-series PLCs. The two jumpers have the following functions when they are closed (i.e a jumper block is plac ed over the two pins to short them together): Jumper OPEN CLOSE J1 All RAM data memory are volatile If FRAM-RTC is installed, then A to Z, A$ to Z$ and DM[1] to DM[4000] are non-volatile. J4 Normal Run mode Suspends execution of the ladder logic program. But host communication remains active. 1.7.1 Usefulness of Jumper J4 We have taken every effort to ensure that the hos t communication is always available even when the user-program ends up in a dead-loop. This allows the user to re-transfer a new program to the PLC and overwrite the bad program. However, you may still enc ounter a situation whereby after transferring a new program to the PLC, you keep encountering communi cation errors and you are unable to erase the bad program. This is especially common if y ou have been experimenting with the communication commands such as SETBAUD, SETPROTOCOL , PRINT or OUTCOMM. These commands may modify the communication baud rate, format, or protocol or se t the PLC to send data out of a COMM port that conflict with i-TRiLOGI. In such cases, you can shor t the jumper J4 and perform a power-on reset for the PLC. The PLC will not execute the bad program t hat causes communication problems and you can then transfer a new program into the PLC to clear up the problem. Note that when the PLC has been power-reset with Ju mper J4 closed, the COMM1 (RS485) serial port will boot up with default baud rate and communication form at of 38,400, 8,n,1. (T his differs from the T100M+ PLC.)

33. Chapter 2 Ethernet Port 2-6 be accessible from the Internet using the same public IP address of the router but with different port numbers. 2.1.8 LAN Speed You can set the LAN speed of the Nano-10 PLC to be either 10 Mbps or 100 Mbps (default) per second using this menu option. Most moder n Ethernet switch or router will automatically connect to the PLC using its default LAN speed and there is usually no need for user to configure this option except in very special application where the dev ices are connected via a 10Mbps Ethernet “hub”, which demands all connected device to be set to the same 10Mbps LAN speed. 2.1.9 Node Name You can assign up to 16 ASCII characters (any charac ter) in naming a PLC. The node name is currently not used by the network router so it is merely a convenient name for user to identify a PLC. 2.1.10 Username and Password (FServer only). You can use the username and password feature to prevent unauthorized access to the FServer. It adopts the same proprietary encryption scheme used in the TLServer and TRiLOGI software to encrypt the password transmission. However, unlike the TLServ er software that allows you to define unlimited number of usernames and passwords, the FServe r only permits a single username and password and this is limited to a length of 16 characters each. 2.1.11 Use Username/Password (Yes/No)? In applications where there is no danger of unauthoriz ed access to the PLC via FServer, you can elect not to use the username/password. With the “No” opti on selected, the TRiLOGI cli ent or Java Applet can log-in to the FServer using whatever username and password since FServer will bypass the username and password authentication and allow the client to log in. 2.1.12 Access Level You can define the access level that the TRiLOGI client is permitted to operate on the PLC. Three access levels are currently defined: 1 for Programmer, 2 fo r User and 3 for Guest. Choose “1-Programmer” if you wish to be able to program the PLC. Please see t he i-TRiLOGI Programmer’s Reference manual for the definition of the access levels. 2.1.13 Advanced Configuration The Advanced Configuration button lets you confi gure other more advanced (beyond the basic Ethernet configuration), but less often used features of the PLC. This incl udes definition of the “Trusted IP” addresses (see Section 2.4.2 ) as well as calibrations of the PLCs Analog I/Os and RTC (see Section 5.4 ). 2.1.14 Standalone Version of Ethernet Configuration Software The standalone version of the Ethernet Configuration software, which wa s previously the only option for configuring the Ethernet port and advanced settings on t he F-series PLCs, can also be used to configure the Nano-10 PLC’s Ethernet port. You can download the so ftware from our website at the following URL: http://www.tri-plc.com/downl oad/FserverConfig/index.htm

143. Chapter 14 Serial Communications 14-11 14.6.3 OMRON Host Link Command Support Command Type Header Level of Support a) TEST TS Full support b) STATUS READ MS Full support c) ERROR Read MF Dummy (always good) d) IR Area READ RR Full support (0000 to 1000) e) HR, AR, LR Area & TC Status READ RH Dummy (always returns “0000”) f) DM AREA READ RD Full support g) PV READ RC Dummy (always returns “0000”) h) Status Write SC Dummy (always OK) l) IR Area WRITE WR Full Support j) HR, AR, LR Area & TC Status WRITE WH, WJ, WL, WG Dummy (always OK) k) DM Area WRITE WD Full Support (from DM0001-DM4000) l) FORCED SET KSCIO KRCIO Full Support for IR Area only Dummy for other areas. m) Registered I/O Read for Channel or Bit QQMR/ QQIR Full Support for IR and DM only Dummy for other areas (always 0000) Some OMRON host link commands are described in Section 16.40 . For other commands please refer to the Omron C20H/C40H PLC Operation manual published by OMRON Corporation. If your purpose is only to use the PLC’s OMRON mode with SCADA or HMI, then there is no need to learn the actual command/response format. 14.6.4 Application Example: Interfacing to SCADA Software SCADA software or MMI systems (also known as LCD Touch Panels) normally use an object-oriented programming method. Graphical objects such as switches indicator lights or meters, etc., are picked from the library and then assigned to a certain I/O or in ternal data address of the PLC. When designing a SCADA system, first you need to define the PLC type. You can choose the MODBUS ASCII, MODBUS RTU or OMRON C20H. Once a graphical object has been created, you will need to edit its connection and at this point you will be presented with a selection table that corresponds to the memory map of that PLC type. Example 1: To connect an indicator lamp to Input #9 of the PLC. You will need to program the switch to connect to IR 00.8 for the OMRON protocol. However, If you have defined the PLC as MODBUS type, then this indicator lamp should be connected to bit address 1-0265. In either case there is no need to learn about the act ual command format of the protocol itself, as the SCADA software will automatically generate the requir ed commands to access the input address that has been chosen for the object. Example 2: To display readings fr om ADC #2 as a bar graph on SCADA. Since the data from ADC #2 is not directly mapped to MODBUS or OMRON in Table 14.1, you need to add a statement in the custom f unction that reads ADC #2 and copies it into a data memory, e.g.,

69. Chapter 2 Ethernet Port 2-42 Relocating the LCD Display: Note that the LCD Display content is not configured in the HTML files bec ause it is displaying what is set in the PLC program. The display is grouped as a singl e unit so it is not possible to define separate locations for each display line (remember it is a 4-line by 20-character display emulation). This is the code to change the coordinates for the st arting location of the LCD screen: LCDXY = [22,52] // starting [x,y] location of LCD panel All you need to do is change the numbers in the square brackets. The x location is 22 by default and the y location is 52 by default, both relative to the top left corner of the browser display area. Relocating the Internal Relay Bit Buttons: Each of the eight buttons (4 input buttons and 4 out put buttons) can be moved i ndividually by editing the following code: IOLocX = [24,120,24,120,24,120,24,120] IOLocY = [142,142,164,164,267,267,290,290] The values in the square brackets for “IOLocX” are the x coordinates and the values in the square brackets for “IOLocY” are the y coordinates for each button. The button for Output1 is the first value and the next value is for Output2, etc. Relocating the Data Memory Labels and Fields: The labels and fields are grouped together for each of t he four data memory locations used, so each label and field group will move as one item. Here is the c ode to change the coordinates for the starting location of the data memory items: DMLocX = [24,24,24,24] DMLocY = [185,205,225,245] The values in the square brackets for “DMLocX” ar e the x coordinates for each data memory item. The label and field for DM[1] is the first value and the nex t value is for DM[2], etc. Note that the default x coordinates are all the same so they are in line ve rtically, but they each hav e different y coordinates. The values in the square brackets for “DMLocY” ar e the y coordinates for each data memory item. The label and field for DM[1] is the first value and the next value is for DM[2], etc. Changing the Size of Display Data, Labels, and Buttons It is possible to change the default size of the intera ctive objects, which are the Data Memory labels and fields, the Internal Relay Bit buttons, and the LCD Display. Only the values need to be edited in the corresponding lines of code in the HTML file, just like how the x,y coordinates c an be edited. Again, some trial and error will be required to find the desired size. Resizing the LCD Display: LCDSIZE=[185,21] // [width, height] of each line of LCD The specified size is reflected equally in all four of the display lines so each line cannot have a different size.

46. Chapter 2 Ethernet Port 2-19 IF LEN(A$) <> 0 SETLCD 1,1,” IP=”+A$ RETURN ENDIF NEXT Notes: a) There is no need for the closing tag </> to end this command. b) If your DNS server has been correctly defi ned, the above program should return the IP address as a string such as “130.94.216.144”. You can then use this IP address string in all the other NS commands to be described in the following sub-sections. c) The DNS server may take some time to re solve the domain name. If it is unable to resolve the domain name then it will return an error string, so your program should test to see if it receives the ERR07 error message to determi ne whether the returned string is useable. d) Although it is possible to embed the domain nam e directly in the NS command in place of IP address, it is usually much more efficient to use the IP address directly if it is known in advance. This is because the DNS server may take some time to resolve the domain name into IP address each time it is called, and ther e is a possibility that the domain name server may be overloaded or down momentarily w hen it is needed, and hence complicating the attempt for the PLC to connect to a remote server. Therefore we recommend that you use the <DNS domain > tag to resolve the domain name in to IP address first and then use the resulting IP address for all Network Services commands via the Internet. 2.4.3 Send Email Format: <EMAIL [recipient email address]> SENDER: [sender email address] SUBJECT: [whatever text string] [body of the email line 1] [body of the email line 2] ..... </> Response: <OK> Email successfully sent ERR:04-Not Connected Failed to connect to SMTP server (Section 2.1.3) ERR:06-Email Failure Failed to complete email transmission . STATUS(3): This function returns 1 on success and 0 on failure. Note that this function only returns the email status after the closi ng tag </> has been sent. If the function is polled before the last closing tag is sent, the status is indeterminate. Description: You can use this command to send out an email for you at any time. The FServer uses the SMTP server and Gateway IP addresses defined by the Nano- 10 (See Section 2.1 ) to perform this task. If it encounters any errors, it will send back an error string, which begins with t he “ERR:” followed by the reason for the error. Although the sender’s email address does not have to be a valid email address, it is good to at least use a valid domain name as the sender address.

129. Chapter 13 LCD Display Programming 13-1 13 LCD DISPLAY PROGRAMMING Although the Nano-10 PLC lacks a connector for connecti ng to a physical LCD display, it does support the SETLCD command available to all the M-series and F-series PLC. The cont ent of the non-existent LCD display however can still be displayed as a “V irtual LCD” screen using the I-TRiLOGI On-line monitoring function. Thus the SETLCD command can still be an effective debugging tool for the PLC to display internal or computed data. The LCD content is also accessible from a web br owser using the appropriate web services commands. Hence it can still be extremely useful for a N ano-10 to use the SETLCD command to manipulate its virtual LCD display, and the content is visible on the user configurable control web page (described in Section 2.10 for controlling the Nano-10 PLC using a web browser. The virtual LCD would then become a real display on the web browser. If you require a physical LCD display to be used wi th the Nano-10 PLC, then there are many options, One of which is to purchase an RS485 based MDS100-BW that is produced by TRi. However, it is important to note that what we describe in this chapter is not applicable to MDS100-BW. MDS100-BW is a peripheral device and it is controlled by a set of communication protocol described in the MDS100- BW installation guide . 13.1 SETLCD Command The SETLCD y, x, string TBASIC command allows you to easily display any string of up to 20 characters on the y th line starting from the x th column. E.g., to display the message “Super Nano-10” on the 3 rd line starting from the 5th character positi on from the left end of the screen, you use the command: SETLCD 3, 5, “ Super Nano-10 ” Normally, y = 1,2,3, 4; x = 1, 2, .... 20. Int egers must be converted to strings using the STR$() or HEX$() function before they can be displayed usi ng SETLCD. You can use the concatenation operator “+” to combine a few components together in the command. E.g. SETLCD 1,1,“Rm Temp = ”+ STR$(ADC(1)/100,3)+CHR$(223)+”C” The function STR$(ADC(1)/100,3) r eads the content of ADC channel #1, divides it by 100 and converts the result into a 3-digit string. The CHR$(223) appends a special character which corresponds to the ‘ o ‘ symbol. E.g. if ADC(1) returns the value 1234, the final string being displayed will be : Rm Temp = 012 o C. 13.2 Special Commands For LCD Display If you use the SETLCD command with line #0, then the st rings will be treated as s pecial “instructions” to be sent to the LCD module to program it for various modes of operation. This includes: blinking cursor, underline cursor or no cursor, as well as display shi ft mode. You have to refer to the LCD manufacturer’s data sheet for the detailed commands. Some of the most useful commands are listed below:

70. Chapter 2 Ethernet Port 2-43 Resizing the Internal Relay Bit Buttons: IOwidth = 80 // Fixed width for I/O button. Set to 0 for Auto width. IOheight= 0 // Use Auto height. If you set the IOwidth or IOheight to 0 then the progr am will adjust the I/O button size based on the width of height of the entire label name. But if you specify a fixed value (s uch as 80 as shown above), then the specified size is reflected equally in all eight of the buttons so each one cannot have a different size. Resizing the Data Memory Labels and Fields: DMWidth = 175 DMHeight = 20 The specified size is reflected equally in all four of the label and field items so each item cannot have a different size. Changing the Color of Display Data, Labels, and Buttons It is possible to change the default color of the intera ctive objects, which are the Data Memory labels and fields, the Internal Relay Bit buttons, and the LCD Display. Each of these objects has different configurable color properties, which will be explained further. Color can be set one of two ways: 1. Using the specific name in single quotes. Eg. ‘Yellow’ 2. Using a unique code called an RGB value that equat es to a color (also in single quotes). Eg. ‘#FFFF00’ for the color Yellow Here is a link to a website that converts colors to color codes: http://jdstiles.com/colorchart.html Changing the LCD Display Color: The LCD display has a background color and a text colo r, which can be individually configured as per the following code. LCDbgColor = '#ffffAA' // LCD background color in RGB value. // Can also be set as "white" for white background LCDTextColor = 'black' // LCD text color Changing the Internal Relay Bit Buttons Color: The eight Input and Output buttons have two background color settings (one for an ON status and one for an OFF status) and a text color se tting that can each be configured. Text Color: IOnameColor = 'black' Background Color: ONcolor= 'yellow' // 'yellow' can also be written in RGB value as '#ffff00' OFFcolor='grey' // 'grey' can also be written in RGB value as '#7f7f7f' The “ONcolor” value is the color that a relay bi t button will turn when it has been activated. The “OFFcolor” value is the color that a relay bit button will turn when it is deactivated.

191. Chapter 18 Extended File System 18-4 5. Any file may occupy more than 1 slot so y ou can specify “Z000.yyy” to occupy the entire 256K bytes of the file space. Or you can configure “Z000.yyy” to occupy the first 5 slots (10K total) and the next valid file should start from Z005.yyy which can occupy the next 10 slots (20K bytes total). i.e. If you want to allocate 10K bytes of file space to file Z000.yyy you cannot not use name any file Z001, Z002, Z003 and Z004, otherwise these file will corrupt the file space of Z000.yyy 6. This means that the programmer will have to des ign the file space carefully and determine how to best use the file structure to provide the ri ght balance between the number of data files and the amount of data space allocated to each data file. Note : The file name restriction only applies to files stored on the PLC’s internal file space. When you use the FTP upload function described later, you can specify any destination filename as long as they are acceptable to the external FTP server. 18.3 Transferring Files To The PLC’s Web Server If you are only using the extended file space for t he purpose of storing additional web pages on the built- in web server, then you can use the FTP client software such as FileZilla client to transfer the program to the PLC. Section 2.9 of this Manual describes in details how to configure the FileZilla client to communicate with the PLC. Please take note that files that are name 0.yyy, 1.yyy......to T.yyy are only stored on the PLC’s on chip flash memory. Only files that are named Z000. yyy, Z001.yyy....Z127.yyy are stored on the FRAM-RTC- 256 as explained in the last section. 18.4 Accessing The Extended Data Files Using TBASIC A Nano-10 PLC with r77 firmware can access the extended data file space (i.e. only file names from Z000.yyy to Z128.yyy) from within TBASIC. The PLC can open a new file for writing new data (essentially deleting the old file content), or open an existing file and append data to the end of the file. It can also open a file and read data from the file as ASCII strings. It can achieve this by using the PRINT #8 and INPUT$(8) functions, which will be described in details in the following sections. 18.4.1 Open A File For Writing New Data Syntax: PRINT #8 “<WRITE Zxxx.yyy>” where “Zxxx.yyy” is the file name. If successfully executed, the “<WRITE>” command will open the file and set the file pointer to the beginning of the file. Thereafter the PLC can start writing ASCII data to the file using the PRINT #8 <string data> command. [Note: the PRINT #8 command automatically appends a carriage return to the end of the string data unless the string data is terminated with a semi- colon (‘;’) ]. When the PLC has completed writing dat a, it must close the file by executing the command: PRINT #8 “</>”. E.g. PRINT #8 “<WRITE Z005.TXT>” PRINT #8 “The current Greenwich Mean Time is” PRINT #8 STR$(TIME[1]);”:”;STR$(TIME[2]);”:”;”00” PRINT #8 “</>”

193. Chapter 18 Extended File System 18-6 where “Zxxx.yyy” is the file name of the file to be opened for reading. If the file has been successfully opened for reading after execution of the PRINT #8 “<READ>” command, the PLC can start to retrieve ASCII data from the file line-by-line using the INPUT$(8) command. A line is either a string that is terminated with a Carriage Return character (ASCII 13) , or is a 70-character long string (which is the maximum length of any string variables A$ to Z$) wit hout carriage return. In either case the return string does not contain the CR character itself. The PLC can check if a file has been successfully opened for reading using the STATUS(2) function AFTER executing the PRINT #8 “<READ>” command. STATUS(2) will only return a 1 if a file has been successfully opened. The PLC can determine if the End-of -File (EOF) has been reached using the STATUS(2) function after every INPUT$(8) command has been executed. STATUS(2) returns a 255 if the EOF has been reached. The PLC should then close t he file by executing the PRINT #8 “</>” command. A$ = "<READ Z"+STR$(F,3)+".txt>" S = STATUS(2) IF S <> 0 SETLCD 1,1, "Failed to Open File" GOTO @100 ENDIF C = 0 PRINT #8 A$ SETLCD 1,1, A$ WHILE 1 A$ = INPUT$(8) S = STATUS(2) IF S = 255 EXIT : ENDIF ' S = 255 means EOF SETLCD 2,1,A$ DELAY 50 ' So that reader can read from the screen. C = C+1 ENDWHILE SETLCD 1,1, "Read ” +STR$(C) + " lines " @100 PRINT #8 "</>" ' close the opened file

134. Chapter 14 Serial Communications 14-2 14.2.2 Accessing 3 rd Party RS485-based Devices There are more and more industrial devices such as electric power meters, analog I/O modules (e.g. the I-70xx modules by ICPDAS), vari able frequency drives, servo contro ller, etc that allows data communication via their RS485 port. The Nano-10 PLC can readily use its RS485 port to communicate with these devices. The PLC has many built-in comm ands for reading/writing to the serial port, including built-in commands for communicating with devices t hat deploy the MODBUS ASCII or RTU protocols. 14.2.3 Interfacing Other Devices to Modbus/TCP Host or to the Internet Since the Nano-10 PLC supports serial MODBUS protoc ols, it can operate as a master PLC and serve as a gateway to interface non MODBUS-enabled PLCs (suc h as the H-series and E10+ PLCs, or the I-7000 analog modules) to third party SCADA software or MMI hardware that speaks MODBUS. The Nano-10 PLC also makes it easy for these devices to be cont rolled or monitored over the Internet. The master Nano-10 will use its RS485 port to pull data from these devices into its data-memory. The data memory in the Nano-10 is in turn accessible by a SCADA pr ogram using the Modbus/TCP protocol. Through the Nano-10 PLC, these other connected devices t hus become accessible from the Internet. 14.2.4 Distributed Control Another important use of the RS485 port will be to connect a Nano-10 PLC to other Nano-10, F-Series, M-series, H-series or E10+ PLCs. One of these PLCs will act as the master and a ll other PLCs will act as slaves. Each PLC must be given a unique ID. The ma ster will send commands to all the slaves using the “NETCMD” or READMODBUS, WRITEMODBUS, READMB2, WRITEMB2 statements and coordinate information flow between the PLCs. In this way, a big system can be built by empl oying multiple units of Nano, F, M, E or H-series PLCs connected in a netwo rk. This results in more elegant implementation of complex control systems and simplifies maintenance jobs. 14.3 Changing Baud Rate and Communication Formats: Use of the SETBAUD Statement The Nano-10 PLC’s COMM port is highly configurable. It can be set to a wide range of baud rates. You can also program it to communicate in either 7 or 8 data bits, 1 or 2 stop bits, odd, even or no parity. The baud rate and communication formats of the seri al port are set by the following command: SETBAUD ch, baud_no ch represents the COMM port number (1 only). The baud_no parameter takes a value from 0 - 255 (&H0 to &HFF), which allows for additional configurati on of the communication format. The upper 4 bits of baud_no specify the communication format (number of data bits, number of stop bits, and parity) and the lower 4 bits represent the baud rate. Hence the baud_no for 8 data bit, 1 stop bit, and no parity is the same as the old models, providing co mpatibility across the PLC families. Once the new baud rate has been set, it will not be changed until execution of another SETBAUD statement. The baud rate is not affected by a software RESET but the settings will be lost when the power is turned OFF. The available baud rates and their corresponding baud rate numbers for COMM1, 2, and 3 are shown below: Format baud_no Format baud_no

47. Chapter 2 Ethernet Port 2-20 Otherwise the SMTP server may refuse to send the email because it may deduce that an email with an invalid domain name is likely to be a Spam mail. Example: Please refer to the fnEmail function in the “TestEthernet.PC6” file. 2.4.4 Open Connection to Remote FServer or TLServer to Use NETCMD$ Format: <CONNECT [IP address:port of TLServer or XServer]> [username string] [password string] Response: <CONNECTED> Successfully connected to remote FServer, TLServer or XServer at the IP address. ERR:05-Prev Conn.ON Another NS command has been executed and left the client socket opened but did not execute the PRINT #4 “</>” to close the client socket. ERR:04-Not Connected Failed to connect to remote Fserver or TLServer. STATUS(3): This TBASIC function returns 1 if the c onnection is active and returns 0 if the connection has ended. You can test the c onnection status to determine if the connection is still alive. Description: This service allows your PLC to log in to another Nano-10, an F-Series PLC or a T100MD+ PLC connected via TLServer or XServer through the Internet. You execute this command by first sending the string “ <CONNECT xxx.xxx.xxx.xxx:9080 >” using the PRINT #4 command, where xxx.xxx.xxx.xxx is the IP address of the remote FServe r or TLServer, followed by sending the username and password needed to log in to the remote server. Each line should be terminated with a CR (carriage return) character. (The PRINT #4 command automatically appends the CR character). Once a connection with the remote server is established, the CPU will return the response string <CONNECTED> to the user program, which can read it using the INPUT$(4) function. The ST ATUS(3) function can also be used to test if the connection is successful and alive. When the program gets the confirmation of connection, it can then use the TBASIC “NETCMD$(4, x$)” command to read or write data to the remote PLCs as if the remote PLC is locally connected to COMM4 port of th is PLC, as shown in the following example: A$ = NETCMD$(4, “@01RI00”) Multiple NETCMD$ commands can be ex ecuted as long as the connection is alive. You can test the connection stat us by checking the result of the STATUS(3) function. Once all the command exchanges have been completed, you should send a </> tag to close the client connection to t he remote server so that other NS commands can be executed in ot her parts of the program.

155. Chapter 15 Host Link Communication Protocol 15-9 desirable if the network traffic is moderately high as many collisions will occur and there is danger of some undetected error being allowed to pass through. 15.5.4.2 Token Awarding Scheme A “token” is a software means of telling a PLC that it has been given the right to temporarily act as the master. A Nano-10 PLC or a host PC can serve as the to ken master. An internal relay bit or a variable of the PLC can be defined as the token. The token master will begin by giving the token (i.e., by setting the token relay bit to ‘1’ or the token variable to some fixed value) to the first PLC on the list. The PLC that has the token can then send host-link commands to other PLCs. When it has finished the job it can then send a command to the token master to relinquish it s token. If it is based on a fixed timing scheme the master can assume that the PLC will complete its job after a fixed time (say 0.1 seconds) and turn off its corresponding token relay bit. The token master then passes the token to the nex t PLC on the list and so on until the last PLC has relinquished its token, and the token is passed back to the first PLC on the list again. This way at any one time there will only be one active network master (t he one with the token) and hence there is no danger of conflicting signals or garbled messages to handle. Pros and Cons : This method also does not incur any hardwar e cost, but it requires the programmer to draw up a plan on what internal relay or variable to use as the token and how the PLC can relinquish its token to the token master. (It could be by fixed timing or by returning a message to relinquish the token) It is a challenging job for programmers unfamiliar with networking schemes, but with some experimentation it can be achieved readily. 15.5.4.3 Rotating Master Signal In this scheme we make use of the digital inputs of the PLC to grant the PLC the right to act as the network master. Lets call this input the “Be the Ma ster” input. We can use a low cost H-series PLC running a sequencer to activate the “Be the Master” input line of each PLC one at a time. Each PLC is given a fixed amount of time to be the master (e.g. 0.1s each). Only when the “Be the Master” input is ON can the new master PLC start sending out host- link commands to other PLCs. So at any one time there will only be one master on the network and no conflict will occur as a result. Pros and Cons: This method is the easiest to program sinc e there is no need to handle the token with the token master or perform extensive error check on the response string. However, this method uses one input of each PLC and as many output s on the master-signal generator PL C as there are PLC masters. It also requires wiring the PLCs to the master-signal generator PLC. 15.5.5 TROUBLE-SHOOTING AN RS485 NETWORK 1) Single faulty device If a single device on the RS485 network becomes inaccessi ble, problems can be isolated to this particular device. Check for loose or broken wiring or wrong DIP switch settings. Also double check the device ID using the host-link command " IR* " sent via the RS232C port of the PL C. If all attempts fail, either replace the entire PLC or the 75HVD3082 chip t hat handles the RS485 interfacing and try again. 2) Multiple faulty devices If all the PLCs are inaccessible by the host com puter, it may possibly be due to a faulty RS232C-to- RS485 converter at the host computer. If this is the case, disconnect the RS485 converter from the network and check it using a single PLC. Replace the conv erter if it is confirmed to be faulty. Next check the wire from the converter to t he beginning of the network. A broken wire here can lead to the failure of the entire network.

108. Chapter 9 Interrupts 9-2 A simple interrupt test function is as follow: Variable A will be incremented on every rising edge sensed on Input #9 (not available on Nano but available on F-series PLCs). Note: 1) Since inputs 1 to 4 can also be used as ot her special inputs such as High Speed Counter (HSC) inputs and/or Pulse Measurement (PM) as described in Chapter 6, 7 and 8, if these inputs are defined as interrupts using the INTRDE F statement, then they will lose their other special function. i.e., they can only be defined ei ther as a HSC/PM or as an interrupt input and not both. 2) When the digital inputs are used as interr upt inputs, the PLC oper ating system does not perform software filtering on these inputs. That means these interrupt inputs are extremely sensitive and will trigger the interrupt service routine even with the shortest input pulse. While the high sensitivity could be useful for some applications that need to capture events that produce very short, sharp pulses, it coul d be problematic for other applications that need to filter out such narrow pulses since they can trigger the interrupt inputs multiple times. You can add in some hardware filtering by connecti ng a small, 100pF (or large capacitor) across the interrupt input and the power supply ground (0V). 9.2 Periodic Timer Interrupt (PTI) The Periodic Timer Interrupt (PTI - not available on T100M+ PLC) lets you defi ne a custom function that will be executed by the CPU precisely every x number of milliseconds (ms). The syntax for setting up a PTI is as follow: INTRDEF 18 , cfnum, x ‘ Interrupt 18 is reserved for PTI cfnum - custom function number to ex ecute when PTI event takes place. x - The period in number of milliseconds between two PTI events. E.g. INTRDEF 18, 101, 15 ‘ call function #101 every 15 ms. The Periodic Timer Interrupt runs independently of t he ladder logic and its exec ution is therefore not affected by the total PLC program scan time.

148. Chapter 15 Host Link Communication Protocol 15-2 15.3.1 Command/Response Frame Format (Point to Point) x x .... .... .... * Header Data Terminator Each command frame starts with a two-byte ASCII character header, followed by a number of ASCII data and ends with a terminator which is comprised of a ' * ' character and a carriage return (ASCII value = 13 10 ). The header denotes the purpose of the command. Fo r example, RI for Read Input, WO for Write Output, etc. The data is usually t he hexadecimal representation of numeric data. Each byte of binary data is represented by two ASCII characters (00 to FF). To begin a communication session, the host computer mu st first send one byte of ASCII character: Ctrl-E (=05Hex) via its serial port to the controller. This in forms the controller that t he host computer wishes to send a (point-to-point) host-link command to it. Therea fter, the host computer must wait to receive an echo of the Ctrl-E character from the controller. Reception of the ec hoed Ctrl-E character indicates that the controller is ready to respond to the command fr om the host computer. At this moment, the host computer must immediately send the command frame to the controller and then wait to receive the response frame from the controller. The entire communi cation session is depicted in Figure 15.1. After the controller has received t he command, it will send a response frame back to the host computer and this completes the communication session. If t he controller accepts the command, the response frame will start with the same header as the command, followed by the information that has been requested by the command and the terminator. As you can probably see, proper hands haking using the Ctrl-E characte r between the host and the PLC is important to communicate successfully using the Point-to-point protocol. Although the “Multi-point” format di scussed in the next section seems more complex, the communication exchange using multi-point protocol is actually simpler than point-to-point since it involves only a single exchange of command/response string. We therefore recommend using the multi-point format if you are writing your own communication program. Note: TBASIC has a built-in command “NETCMD$” t hat lets a Nano-10 PLC access another slave PLC using the multipoint Host-link protocol format very easily. If an unknown command is received or if the command is illegal (such as access to an unavailable output or relay channel), the following error response will be received: 15.3.2 Error Response Format E R * The host computer program should always check the re turned response for possibilities of errors in the command and take necessary actions.

200. Chapter 18 Extended File System 18-13 18.7.3 Monitoring The FTP Upload Progress Once the file transfer begins the PLC firmware will handle t he rest of the file transfe r until either the file has been completely transferred or the transfer is aborted due to a network or server trouble. You can monitor the progress of the file transfer using either the STATUS(4) or STATUS(20) functions. STATUS(4)= 0 : FTP client was idle or last FTP failed 1 : FTP data transfer just started 2 : 1st FTP segment transferred, now transferring the rest 3 : FTP data transfer completed. STATUS(20) > 0 : Number of bytes uploaded to FTP Server. Transfer is in progress. < 0 : Total number of bytes uploaded. Transfer completed. For example, If 2,345 bytes has been uploaded to the server and the transfer has ended, STATUS(20) will return the number = –2345. Since file transfer can take substantial amount of time to complete, it is not wise to run a loop to wait for the file transfer to complete since this will block the PLC from processing any other part of the program. The demo “ExtendedFileSystem.PC6” shows y ou how to setup a monitoring function to periodically monitor the progress of the file transfer and report t he transfer status on the LCD display. Please refer to the comments in the custom function “fnConnFTP” and “fnMonFTP” of the “ExtendedFileSystem.PC6” program for mo re detailed descriptions of each command involved in the FTP file transfer.

150. Chapter 15 Host Link Communication Protocol 15-4 15.4.2 Calculation of FCS The FCS is 8-bit data represented by two ASCII characters (00 to FF). It is a result of performing an Exclusive OR on each character in the frame sequentia lly, starting from @ in the device number to the last character in the data. An example is as follows : @ 0 4 R V I A 4 8 * Device ID Header Data FCS @ 0100 0000 XOR 0 0011 0000 XOR 4 0011 0100 XOR R 0101 0010 XOR V 0101 0110 XOR I 0100 1001 XOR A 0100 0001 0100 1000 = 48 16 Value 48 16 is then converted to ASC II characters '4' (0011 0100) and '8' (0011 1000) and placed in the FCS field. FCS calculation program example The following C function will compute and return the FCS for the "string" passed to it. unsigned char compute_FCS(unsigned char *string){ unsigned char result; result = *string++; /*first byte of string*/ while (*string) result ^= *string++; /* XOR operation */ return (result); } A Visual Basic routine for FCS computation is included in the source code of a sample communication program you can download from: http://www.tri-plc.com/applicat ions/VBsample.htm#VB6sample 15.4.3 Communication Procedure Unlike the point-to-point communication protocol, the host computer must NOT send the CTRL-E character before sending the command frame. After the host computer has sent out the multi-point host- link command frame, only the controller with the correct device ID will respond. H ence it is essential to ensure that every controller on the RS485 network assumes a different ID (If a master PLC is used, then

192. Chapter 18 Extended File System 18-5 The CPU should use the STATUS(2) command to c heck whether the <WRITE > has been successfully executed before begin writing data to it. STATUS(2 ) command returns a 1 if “<WRITE>” operation is successful and returns a ‘0’ if the operation failed. The following are some possible reasons that could cause the “<WRITE>” command to fail: 1. A previously opened File was not closed. The CPU can only write to a single file at a time so any opened file must be closed by the PRINT #8 “</>” command before another file can be opened for writing. 2. The FRAM-RTC-256 is not installed. The PLC can only write data to the extended data file space (i.e. file name Zxxx.yyy) which are only ava ilable if an FRAM-RTC-256 is installed. 18.5 Open A File For Appending Data To The End Of The File Syntax: PRINT #8 “<APPEND Zxxx.yyy>” where “Zxxx.yyy” is the file name. If successfully executed, the “<APPEND>” command will open the file and set the file pointer to the end of the file. Thereafter any string data following a PRINT #8 command will be appended to the end of the file. When the PLC has completed appending data, it must close the file by executing the command: PRINT #8 "</>" . As per the “<WRITE>” command, the CPU should al so use the STATUS(2) command to check whether the <APPEND> command has been successfully executed before begin writing data to it. Since the same reasons that could cause a “<WRITE>” command to fail would also cause the “<APPEND>” command to fail, please refer to the last sect ion on a list of possible causes of failure. Example PRINT #8 "<APPEND Z"+STR$(F,3)+".txt>" S = STATUS(2) ‘ Status(2) returns 1 if successful. IF S <> 1 RETURN: ENDIF FOR I = 1 to 100 PRINT #8 STR$(I,4)+":This is the Appended first line" PRINT #8 STR$(I,4)+":This is the Appended second line" SETLCD 1,1, "Append #"+STR$(I,4) NEXT PRINT #8 "</>" ‘ close the file 18.5.1 Delete A File Syntax: PRINT #8 “<DELETE Zxxx.yyy>” where “Zxxx.yyy” is the file name of the file to be deleted. There is no need to close a deleted file. 18.5.2 Open A File For Reading Syntax: PRINT #8 “<READ Zxxx.yyy>”

139. Chapter 14 Serial Communications 14-7 14.6 Using The PLC As a Modbus / Omron Slave – SCADA, HMI Applications The Nano-10 PLC supports a subset of the OMRON ™ C20H and MODBUS ™ (Both ASCII and RTU modes are supported) compatible communication protocol s so that it can be easily linked to third-party control software/hardware products such as SC ADA software, LCD touch panels etc. The PLC automatically recognizes the ty pe of command format and will generate a proper response. These are accomplished without any user intervention and wi thout any need to configure the PLC at all! Both MODBUS and Omron protocols use the same device ID address (00 to FF) as used by the native “Hostlink Command” protocol described in Chapter 15. Since the addresses of I/O and internal variables in the Nano-10 PLC are organized very diffe rently from the OMRON or Modicon PLCs, we need to map these addresses to the corresponding memory areas in the Modbus address space so that they can be easily accessed by thei r corresponding protocols. All I/Os, timers, counters, internal relays and dat a memory DM[1] to DM[4000] are mapped to the Modbus Holding Registers space. The I nputs, Outputs, Relays, Timers and Counters bits are mapped to the MODBUS Bit address space as shown in Table 14.1. Note that input and output bits are always mapped according to Table 14.1 whether it is MODBUS function 01, 02 or 05. However, 32 bit variables and string variables ar e not mapped since they are fundamentally quite different in their implementation among different PL Cs. Internal variables that are not mapped can be still be accessed by copying the cont ents of these variables to unused data memory DM[n] (this can be easily accomplished within a CusFn) so that they can be accessed by these third party protocols. 14.6.1 MODBUS ASCII Protocol Support The Nano-10 PLC supports MODBUS ASCII protocols with the following command and response format: START Address Function Data LRC Check CRLF : 2 chars 2 chars # chars 2 chars 2 chars The following Function Codes are supported: 01/02 Read I/O bit (Use Bit Address Mapping in Table 14.1) 03/04 Read I/O Word registers 05 Force I/O Bit (Use Bit Address Mapping in Table 14.1). 06 Preset Single Word Register 16 Preset Multiple Word Registers The exact command/response format of the MODBUS protocol can be found at http://www.modbus.org. However, if your only purpose is to interface the PLC to other MODBUS hosts such as an LCD touch panel or SCADA software then there is no need to know the underlying protocol command format. All you need to know is which PLC’s system Variable is mapped to which MODBUS register, as shown in Table 14.1.

153. Chapter 15 Host Link Communication Protocol 15-7 1. You can replace the standard RS485 driver (75H VD3082) on the PLC with a fault-tolerant RS485 driver IC; part number LT1785AIN8. This 8 pi n IC is made by Linear Technology and can withstand wrong voltages of up to + 60V! The LT1785AIN8 is a 1/4 power RS485 driver, which means up to 128 PLCs can be connected together. Unfortunately this IC is much more expensiv e than 75HVD3082 and hence it is not provided as standard component on the PLC. You can purchase the IC from any major electronic catalog company such as www.digikey.com . 2. When using non fault-tolerant RS485 driver s such as SN75176 or SN75HVD3082, we strongly recommend the following protection circuit to be added between every PLC’s RS485 and the twisted pair multi-drop network cable: 10 Ω 1/2 W 0.1A Fuses RS485 Network 9V 1W Zene r RS485 + - Power 0V Ground the Shield 24V Figure 15.3 Note: As can be seen from the circuit, the two 9V Zener diodes clamp the signal voltage on the PLC’s RS485 interface to between +9V and - 0.7V. If the high volt age persists, the 0.1A fuse will blow, effectively disconnecting the PLC from the offending voltage on the network. Even if you choose to replace the RS485 driver by an LT1785AIN8 IC in stead of using the zener/fuse pair wiring, you should still use shielded twisted pair cabl es as the multi-drop network “backbone” and connect the shield to the 0V (DC ground) power terminal of every PLC. The grounded shield then provides a common ground reference for all the different PL Cs’ power supplies. Even though the RS485 network may still work without a common ground reference because the signal wire pair will somehow “pull” all the RS485 devices to some reference point. Failure to provide a common grou nd is a potential source of serious trouble as signal wires with a floating ground eas ily induce large voltage differences between nodes when subjected to electromagnetic interference. Hence, for reliabl e operation it is important to provide the common ground. A grounded shield also has the additional advantage of shielding the electrical signals from EMI. 15.5.3 Single Master RS 485 Networking Fundamentals RS485 is a half-duplex network, i.e., the same two wires are used for both transmission of the command and reception of the response. Of course, at any one time, only one transmitter may be active. The Nano- 10 PLC implements a master/slave network protocol. T he network requires a master controller, which is typically a PC equipped with an RS485 interface. In the case of a PC, you can purchase an RS-485 adapter or an RS232C-to-RS485 converter and connect it to the RS232C serial port. Any F-series, M- series, or even the Nano-10 PLC can be programmed to ac t as the master, it can communicate with other

164. Chapter 16 Host Link Command/Response Format 16-7 16.14 Read Variable - Data Memory (DM[1] to DM[4000]) Command Format R V D 16 3 16 2 16 1 16 0 * 0001 to 0FA0 (4000 10 ) Response Format R V D 16 3 16 2 16 1 16 0 * 4 Hexadecimal Digit for 16-bit integer E.g. To read the value of DM[3600], send host-link command “ RVD0E10* ”. If variable DM[3600] contains the value 12345 10 (=3039 16 ), PLC will send the response string as “ RVD3039* ”. 16.15 Read Variable - System Variables This command allows you to read all the Nano-10 PLC’ s 16-bit system variables such as the inputs[ ], outputs[ ], relays[ ], counters[ ], time rs[ ], timers’ P.V., counters’ P.V ., CLK[ ] and DATE[ ]. Although inputs, outputs etc. are also accessible via the “RI”, “RO”, “RR”... commands, the RVS command can access them as 16-bit words instead of as 8-bit bytes in those commands. For the 32-bit system variable HSCPV[ ], use the “RVH” command described in the next section to access it. It may be more conventional for some SCADA software driver to use a single header command “RVS” to access all the I/O, varying only the “type” number to access different I/O types. The RVS command also can be used to access the inte rnal variables used to store ADC, DAC and PWM values obtained during the latest ex ecution of the ADC(), setDAC or setPWM statement. These are however not system variables in t he TBASIC sense. E.g. it is illegal to use ADC[2] to access the ADC channel #2 in TBASIC (you have to use the ADC(2) function instead). An 8-bit hexadecimal number is used to denote the “type” of system vari able, as shown in the following table: System Variable type System Variable type input[ ] 01 clk[ ] 08 output[ ] 02 date[ ] 09 relay[ ] 03 - 0A timer[ ] 04 ADC* 0B ctr[ ] 05 DAC* 0C timerPV[ ] 06 PWM* 0D ctrPV[ ] 07 *Not a system variable in TBASIC, but readable.

147. Chapter 15 Host Link Communication Protocol 15-1 15 HOST LINK PROTOCOL INTRODUCTION While a Nano-10 PLC is running, it may receive ASCII string commands that read or write to its inputs, outputs, relays, timers, counters, and all the internal variables from a host computer or another Nano-10, F-Series or T100M+ PLC. These ASCII commands ar e known as the "Host-link commands" and are to be serially transmitted (via RS485 port) to and from the controller. The default serial port settings of the Nano-10 PLC for host-link communication are: 38400 baud, 8 data bit, 1 stop bit, no parity . The baud rate and the communication format may be changed using the “SetBAUD” TBASIC command described in the i-TRiLOGI Programmer’s Reference. Nano-10 PLC supports the full set of Host Link co mmand protocol found on F-series and M-series PLCs. Hence if you are already familiar with the F or M-series host link protocol the command formats are identical. 15.1 Multiple Communication Protocols The Nano-10 PLC, just like the F-series and T100M + PLCs, supports many different communication protocols to allow maximum application flexibility. In addition to its own native set of communication protocols, the Nano-10 PLC also underst ands and speaks the following protocols: a) *MODBUS ™ ASCII mode compatible communication protocol. b) *MODBUS ™ RTU mode compatible communication protocol. c) *OMRON ™ Host Link Commands for the C20H PLC family. *Note: all trademarks belong to their respective owners. The native host link command protocol will be descri bed in detail in this and the next chapter. The MODBUS and OMRON compatible protocols hav e already been discussed in Section 14.7. 15.2 Native Mode Communication Protocols When the Nano-10 receives a native host-link co mmand via COMM1, it will automatically send a response string corresponding to the command. This oper ation is totally transparent to the user and does not need to be handled by the user’s program. All Nano-10 PLCs support both the point-to-point (one-to-one) and multi-point (one-to-many) communication protocols. Each protocol has a different command structure as described below. 15.3 Point-To-Point Communication Format In a point-to-point communication system, the host computer's RS485 serial port is connected to the PLC’s COMM1. At any one time, only one controller may be connected to the host computer. The host- link commands do not need to specify any controller ID code and are therefore of a simpler format, as shown below:

76. Chapter 3 I/O and Internal Relays Programming 3-4 TBASIC code is entered into the custom function, which a llows the possibility of total control of all of the PLCs functions and hardware. There are 7 TBASIC functions available to control all of the digital I/O, which are: 1. SETIO labelname 2. CLRIO labelname 3. TOGGLEIO labelname 4. TESTIO ( labelname ) 5. SETBIT v,n 6. CLRBIT v, n 7. TESTBIT ( v, n ) Each function has its own advantage depending on what needs to be done to a digital I/O. Each of these functions is explained in the programmer’s refer ence manual, which should be referred to for further information. Here are some examples of how to control digital I/O using these functions. 3.3.3 Example 1 – Turn on/off an Output This can be done using both the SETBIT v,n / CLRBIT v,n command and the SETIO labelname / CLRIO labelname command. 1. Using SETBIT v,n / CLRBIT v,n SETBIT OUTPUT[1], 0 ‘This will turn on the first output using the output[] register CLRBIT OUTPUT[1], 7 ‘This will turn off the 8th output using the output[] register 2. Using SETIO labelname / CLRIO labelname SETIO out1 ‘This will turn on the output out1 CLRIO out5 ‘This will turn off the output out5

95. Chapter 5 Analog Inputs 5-9 2) Changes to the ADC calibration data only take effect after the PLC has been cold-booted. You can either power cycle the PLC or simply c heck the “Reboot PLC After Save” checkbox and the PLC will re-boot after you have transferred the parameters to it. 5.4.2 ADC Zero Offset 4095 4094 4093 1 2 3 0 Input Voltage 0 5.00 A DC(n) value Zero Offset Figure 5.7 The zero offset error can be corrected by entering a value into the “ADC Zero Offset” field. Any number between –100 and 100 can be entered here. The ADC(n) f unction would add the zero-offset value that you entered here to the measured value and retu rn the total sum to the calling routine. 5.4.3 A/D Moving Avg This field lets you define the number of points of moving average that the Nano-10 CPU firmware uses to compute the value returned by the ADC(n) function (Please see explanation of moving average in Section 5.2.5). A larger number of moving Average points has the positiv e effect of filtering out large noise spikes seen at the analog input, but the disadv antage is that the PLC would be slower in noticing a sudden step change at the analog input. If you specify a moving av erage of 1 point, that means no moving average will be used and the ADC(n) function will return the most recently sampled data at the analog input #n.

11. USER MANUAL Page x 18.7.2   PLC FTP Upl oad Proc edure ........................................................................................ 18-12   18.7.3   Monitoring The FTP Upload Pr ogress ......................................................................... 18-13   18.8   Setting Up A FTP Server Behind a Window s Firewall. ................................................... 18-14   19   USING PLC AS A MODBUS/TCP GATEWAY 19-1   19.1   Introduc tion ................................................................................................................... ........ 19-1   19.2   Application Ideas for Modbus/TCP Gateway ..................................................................... 19-1   19.3   Configuring The PLC As Modbus/TCP Gateway ............................................................... 19-1   19.4   Fine-Tuning The Modbus/T CP Gatewa y Function ............................................................ 19-2   19.5   Modbus/TCP Gateway Sample Program ............................................................................ 19-3  

176. Chapter 16 Host Link Command/Response Format 16-19 E.g. To read DM#112 to #130 (19 words), send: “ @01RD0112001357* ” The PLC will send return a response “ @01RD00xxxxyyyyzzzz...* ” 16.40.4 WRITE Data Memory DM[1] to DM[4000] Command Format @ d d W D n n n n 16 3 16 2 16 1 16 0 .... Device ID Header DM Start Addr(Dec) 1 st data 16 3 16 2 16 1 16 0 f f * Last data FCS Response Format @ d d W D s s f f * Device ID Header Status FCS 00 – OK E.g. To Write to DM#1200 to #1201 using this command, send: “ @01WD1200xxxxyyyyff* ” where xxxx and yyyy are the values to be written to DM[1200] & DM[1201].

88. Chapter 5 Analog Inputs 5-2 However, if you need to connect to 0-10V inputs or a 4-20mA analog source to either channel, you have to take into consideration the low A/D input impedance in your design. The following figures show how to connect 4-20mA current source signals and 0-10V signals to the A/D inputs #1 to 2. : 0.0 - 5.0V or 1.0 - 5.0V V 2 :0-5V A nalog 0V A/D #1 - #2 0-20mA or 4-20mA Current loop 250 Ω 1% 3.16 Ω 1% A nalog 0V A/D #1 - #2 V 1 : 0-10V R 1 =20.0K Ω 0.1% Converting 20mA current-loop to 0-5V Converting 0-10V signal to 0-5V Internal 20.00K Internal 20.00K Figure 5.1 You can see that interfacing to a 0-10V analog signal is extremely simple since all you need is to add a 20.0K ohm series resistor and it will be divi ded into 0-5V when it enters the AD #1 or #2 However, to convert a 0-20mA or 4-20mA current sour ce into 0-5V or 1-5V voltage signal, you should use a 253.16 ohm resistor which, when paralleled with t he 20K ohm of internal impedance, will yield a 250.0 ohm total resistance. You can obtain 253.16 ohm by combining a 250 ohm and a 3.16 ohm metal-film resistor. 5.2.1 Interfacing to two-wire 4-20mA sensors Many 4-20mA analog sensors only have two wire c onnections and are designed to be powered by the 4- 20mA output current that flows through it. These types of sensors can be interfaced easily to the 0-5V analog inputs of the PLC as shown in the following diagram:

160. Chapter 16 Host Link Command/Response Format 16-3 Please refer to the Input/Output vs Channel Number table described in the section “16.3. Read Digital Input Channels” for details. 16.5 Read Internal Relay Channels Command Format R R n n * 8-bit Channel # (Hex) Response Format R R 16 1 16 0 * 8-bit data (Hex) 16.5.1 Definition of Internal Relay Channel Numbers Nano-10 supports 512 internal relays, the channel definition of the first 256 internal relays is the same as the inputs and the outputs. The remaining relays and their assigned channels are shown in the following table: bit7 Relay numbers bit0 CH20 16 : 264 263 262 261 260 259 258 257 CH21 16 : 272 271 270 269 268 267 266 265 CH22 16 : 280 279 278 277 276 275 274 273 CH23 16 : 288 287 286 285 284 283 282 281 CH24 16 : 296 295 294 293 292 291 290 289 CH25 16 : 304 303 302 301 300 299 298 297 CH26 16 : 312 311 310 309 308 307 306 305 CH27 16 : 320 319 318 317 316 315 314 313 CH28 16 : 328 327 326 325 324 323 322 321 CH29 16 : 336 335 334 333 332 331 330 329 CH2A 16 : 344 343 342 341 340 339 338 337 CH2B 16 : 352 351 350 349 348 347 346 345 .. .. .. .. .. .. .. .. .. CH3A 16 : 488 487 486 485 484 483 482 481 CH3D 16 : 496 495 494 493 492 491 490 489 CH3E 16 : 504 503 502 501 500 499 498 497 CH3F 16 : 512 511 510 509 508 507 506 505

161. Chapter 16 Host Link Command/Response Format 16-4 16.6 Read Timer Contacts Command Format R T n n * 8-bit Channel # (Hex) Response Format R T 16 1 16 0 * 8-bit data in Hex 16.6.1 Definition of Timer- Contact Channel Numbers A timer contact is a single bit of memory and 8 ti mer contacts are grouped into one 8-bit channel similar to that of the i nputs, outputs etc. The following table shows the timer numbers defi ned in TRiLOGI's Timer entry table and their corresponding channel numbers. bit7 Timer Contact numbers bit0 CH0: 8 7 6 5 4 3 2 1 CH1: 16 15 14 13 12 11 10 9 CH2: 24 23 22 21 20 19 18 17 CH3: 32 31 30 29 28 27 26 25 CH4: 40 39 38 37 36 35 34 33 CH5: 48 57 56 45 44 43 42 41 CH6: 56 55 54 53 52 51 50 49 CH7: 64 63 62 61 60 59 58 57 16.7 Read Counter Contacts Command Format R C n n * 8-bit channel # (Hex) Response Format R C 16 1 16 0 * 8-bit data in Hex 16.7.1 Definition of Counter -Contact Channel Numbers: The 64 counter contacts are assigned channel #’s in ex actly the same way as the 64 timers. Please refer to the last section: “16.6. Read Timer Contacts” for details.

48. Chapter 2 Ethernet Port 2-21 Example: Please refer to the “fnConnect” and “fnN etCmd” custom functions in the demo program: “TestEthernet.PC6”. 2.4.5 Remote File Services Format: <REMOTEFS [IP Address of remote TLServer 2.1 & above]> [File Service tag for TLServer] ..... </REMOTEFS> Response: The response strings sent by the re mote TLServer in response to the [ File Service tag] sent by this PLC. Or, ERR:04-Not Connected Failed to connect to remote TLServer. Example: Please refer to the “fnRFS1” and “fnR FS2” custom functions in the demo program: “TestEthernet.PC6”. Description: This commands allows the Nano-10 PLC to connect to a remote TLServer to perform any of the “Files & Email Services” that a TLServer normally provides to PLCs that are connected to it. This includes creating text files on a remote PC running the TLServer software and writing or appending data to it anytime. This makes it very convenient for the PLC to collect large amounts of data and save them to the easily accessi ble, virtually limitless hard disk storage space that is available in today’s PCs. For detailed descriptions of the available [F ile Service Tags] please refer to TRiLOGI programmer’s reference manual under the chapter “File & Email Services”. All TLServer’s “File & Email Services” tags, such as <Email>, <WRITE>,<APPEND>, <READ> and <READ RTC> are available to the Nano-10 PLCs through the use of the <REMOTEFS> tag. You simply have to wrap t he abovementioned command tags between the <REMOTEFS IPAddr:port > and </REMOTEFS> tag, where “IPAddr:port” is the IP address and listening port of the remote TLServer. E.g. through the <R EAD RTC[]> tag, the PLC can synchronize its Real Time clock with a remote TLServer. (As you will later see, this feature is probably not very useful for the Nano-10 PLC anymore since Nano-10 has the ability to connect to the NIST Time Server to update its real time clock to Atomic clock accurately!) Note: Only TLServer version 2.1 or above can handle the <REMOTEFS> command tag sent by the Nano-10 or F-series PLC. 2.4.6 Other Network Services Tags We will describe two more Network Services commands: <TCPCONNECT> and <MBTCPCONNECT> in separate sections later in this manual.

151. Chapter 15 Host Link Communication Protocol 15-5 the master PLC should also have a different ID from all the slaves). Otherwise, contention may occur (i.e., two controllers simultaneously sending data on the receiver bus, resulting in garbage data being received by the host). On the other hand, if none of the controller ID s match that specified in the command frame, then the host computer will receive no response at all. The PLC automatically recognizes the type of command protocols (point-t o-point or multi-point) sent by the host computer and it will respond accordingly. If a multi-point command is acc epted by the controller, the response frame will start with a character '@', followed by its device ID and the same header as the command. This will be followed by the data request ed by the command, a response frame FCS and the terminator. 15.4.4 Framing Errors When the controller receives a multi-point host-lin k command frame, it computes the FCS of the command and compares it with the FCS field receiv ed in the command frame. If the two do not match, then a "framing error" has occurred. The controller will send the following Framing Error Response to the host: Framing Error Response Frame (Multi-point only) @ x x F E x x * Device ID Header FCS Terminator 15.4.5 Command Errors If an unknown command is received or if the comm and is illegal (such as an attempt to access an unavailable channel), the following error response will be received: Error Response Format @ x x E R x x * Device ID Header FCS Terminator The host computer program should always check the re turned response for possibilities of errors in the command and take necessary action. 15.4.6 SHOULD YOU USE POINT-TO -POINT OR MULTI-POINT PROTOCOL? Although at first the point-to-poi nt protocol appears simpler in format (having no ID and no FCS computation), the communication procedure is actua lly more complex since it involves the need to synchronize the two communicating devices by exchanging the Control- E character. The lack of error checking also makes the protocol less re liable especially in noisy environment. In fact, the TLServer software will only accept multi-point communication protocol from the client software with the exception of the “IR*” command, which is needed to obtain the ID of a PLC with unknown ID. Hence, if you were to write your own communicati on program to talk to the PLCs, we would strongly recommend using only the multi-point protocol exclus ively due to its simplicity and built-in error checking capability.

45. Chapter 2 Ethernet Port 2-18 The PLC can operate the Ethernet port by means of TBASIC INPUT$ and PRINT # commands operating on COMM 4. It uses the PRINT #4 command to send out NS commands and the INPUT$(4) command to receive response data via the Ethernet port. Notes: 1. UNLIKE the case of T100MD PLC + XServer , the CPU does not route communication data that the FServer (or Modbus/TCP server) is exchanging with exte rnal clients to the virtual comm port #4. This means that there would not be interference to the NS command/response being sent and received by the PLC program via virtual comm. port #4. As such, there is no need to implement the “arbitration” method ment ioned in the XServer User’s Manual for this PLC. 2. Only PRINT #4 and INPUT$(4) are implemented on virtual COMM port #4. Nano-10 PLC DOES NOT support the INCOMM (4) and OUTCOMM 4 commands. However, you may send any non -zero ASCII data using the PRINT #4 command. The following subsections describe the various Ne twork Service commands available to the Nano-10 PLC. 2.4.1 Get Our Local IP Address Format: <IP> Response: xxx.xxx.xxx.xxx:nnnn (IP address:port of FServer) Example: PRINT #4 “ <IP>” SETLCD 1,1,”Our IP=”+INPUT$(4) Note: This IP address is returned instantly, so there is no need to wait for INPUT$(4). There is also no need for the closing tag </> 2.4.2 DNS command: Resolving Domain Name into IP Address In order to use this command successfully, you mu st first correctly defi ne the DNS Server IP address mentioned in Section 2.1.4 . Format: <DNS [domain name]> Response: xxx.xxx.xxx.xxx IP address string returned by DNS server ERR:07-DNS Unresolved Either DNS se rver not properly defined or the domain name does not exist. Response: xxx.xxx.xxx.xxx (IP address string returned by domain name server) STATUS(3): This function returns 1 on success and 0 on failure. Example: PRINT #4 “ <DNS tri-plc.com> “ FOR I = 1 to 10000 A$ = INPUT$(4)

178. Chapter 16 Host Link Command/Response Format 16-21 16.42 Visual Basic Sample Program To help users get started writing their own Visual Ba sic program to communicate with the PLC, we have created a sample Visual Basic program with full s ource code listing. Please visit the following web page to download the visual basic sample program. http://www.tri-plc.com/applications/VBsample.htm 16.43 Inter-PLC Networking Using NETCMD$ Command Nano-10 is able to send out host link commands to anot her Nano-10, FMD, F-series, M-series or even the E10 PLCs using the built-in TBASIC function NETCMD$() . This function accepts host link commands in multi-point format and automatica lly computes the Frame Check Sequence (FCS) characters, appends them to the command string and s ends out the whole command string together with the terminators. The function then waits for a response string and che cks the integrity of the received response string for errors. This function return s a string only if a proper response string has been received. Please refer to the TBASIC Referenc e for a detailed explanation of this command. The NETCMD$() function therefore greatly simplifies t he programming tasks for handling networking between PLCs. The programmer only needs to construc t the correct command string according to the formats described in this chapter, pass the formatted string to the NETCMD$() function, and then check for the response string. The Nano-10 PLC may use the NETCMD$ to map the I/O of another PLC into its internal relays and use the other PLC as its remote I/O. There are some programming examples in your “ TRILOGI\TL6\usr\samples ” folder that illustrate the use of NETCMD$() to map I/Os of a slave PLC to the ma ster. Please study the two examples: “ RemoteIO-Hseries.PC6 ” and “ RemoteIO-Mseries.PC6 ” carefully to understand the mechanism of mapping I/Os between the PLCs. The TRiLOGI program “ REMOTE-Hseries.PC6 ” will work on the H- series, M-series or F-series PLCs as slaves, whereas the program “ REMOTE-Mseries.PC6 ” will only work with another FMD, F-series, Nano-10 or M-series slaves. This is because the F-series and M-series host link command set is a superset of the H-series host link command set, and this example uses the more efficient M-series host link commands to r ead/write 16-bit data for networking between M-series PLCs. An application note and example programs demonstrati ng how to use our other PLC models as slave remote I/O for the F- or M-series PLC can be found at the following web page: http://www.tri-plc.com/appnotes/AppnoteMain.htm 16.44 Inter PLC Networking Using MODBUS Protocols The PLCs may also pass data to each other using special MODBUS commands, which are even simpler to use than NETCMD$ but are restricted to accessi ng variables that are mapped into MODBUS address structure. Please refer to the Se ction 14.7 and 14.8 as well as the T BASIC Reference manual for details on using the READMODUS, WRITEMODBU S, READMB2 and WRITEMB2 commands.

113. Chapter 10 Stepper Motor Control 10-3 10.3 Programming Stepper Control Channel 10.3.1 Introduction The PLC’s stepper motor controller channel #1 is controlled by the PLC program using the “ STEPMOVE ” and “ STEPMOVEABS ” commands. These commands have the same parameters as they did when they were used on M-Series PLCs. For example, STEPMOVE ch, count, r STEPMOVEABS ch, position, r The ch parameter is the channel. This is how the PL C knows which stepper motor channel to turn on. Now this parameter is also used to set the stepper motor channel to controller mode, full-step driver mode, or half-step driver mode. To set the stepper motor channel to controller mode, the ch parameter should be a “1”. The same format should be used for STEPMOVEABS , except that the count parameter is changed to the position parameter (more details provided in t he Programmers Reference manual and also in the program examples section of this chapter). 10.3.2 Setting the Accel eration Properties Before the stepper motor channel can be used to control a stepper motor driver, the STEPSPEED command must be executed first in order to define the acceleration settings. Once this command has been executed, the acceleration settings w ill not change until another STEPSPEED command is executed with different settings or if the PLC is powered down. If the PLC is powered down, the STEPSPEED command will need to be executed again bef ore the stepper motor channels can be used. However, if a software reset executed (from onli ne monitoring or within the program), the STEPSPEED command does not need to be re-executed. STEPSPEED ch, pps, acc The ch parameter should be a 1. Speed, pps , is based on the no. of pulses per second ( pps ) output by the pulse generator. The pps parameter should be set to a value between 1 and 10000 (max rated pps for the Nano-10 PLC). The acceleration, acc , determines the total number of steps taken to reach full speed from a standstill and the number of steps from full s peed to a complete stop. The stepper motor controller calculates and performs the speed trajectory according to these parameters when the STEPMOVE or STEPMOVEABS commands are executed. To set stepper motor channel #1 to a speed of 100 pps in 50 steps, the command would be as follows: STEPSPEED 1, 100, 50 This would be equivalent to an acceleration of 100 pul ses/s2, which can be calculated using the following expression: A = V 2 /2S = 100 2 /2*50 = 100pps 2

158. Chapter 16 Host Link Command/Response Format 16-1 16 HOST LINK PROTOCOL FORMAT This chapter describes the detailed formats of the command and response frames for Nano-10 PLC host link commands. Only the formats for the point-to-poi nt communication protocol are presented, but all these commands are available to the multi-point protocol as well. To use a command for multi-point system, simply add the device ID (@nn) before the command header and the FCS at the end of the data (S ee Chapter 3 for detailed descripti ons of multi-point communication command format). 16.1 Device ID Read Command Format I R * Response Format I R 16 1 16 0 * Device ID (00 to FF) The device ID is to be used for the multi-point comm unication protocol so that the host computer can selectively communicate with any controller c onnected to a common RS485 bus (see Chapter 3 for details). The ID has no effect for point-to-point co mmunication. The device ID is stored in the PLC's non- volatile memory and, therefore, will remain with the controller until it is next changed. 16.2 Device ID Write Command Format I W 16 1 16 0 * New Device ID (00 to FF) Response Format I W * E.g. To set the PLC’s ID to 0A, send command string “ IW0A *” to PLC. 16.3 Read Digital Input Channels Command Format R I n n * 8-bit Channel # (Hex)

89. Chapter 5 Analog Inputs 5-3 0V V+ PLC’s V+ - + ADC Input 253.16 Ω 24V P.S. for PLC A nd Sensors 4-20mA Sensor PLC’s 0V * Use a 250.0 + 3.16 ohm resistors in series to obtain 253.16 ohm. Again due to the 20.00K ohm internal resistance on the PLC’s ADC inputs, you need to wire a 253.16 ohm resistor (formed by a 250 ohm and 3.16 ohm resistors in series) to t he circuit in order to convert the 4-20mA signal to 1.00-5.00V analog voltage and can be read by the PLC using the ADC(n) statement, which will return readings of between 819 and 4095. 5.2.2 Using Potentiometer to Set Parameters A potentiometer can provide a very low cost means fo r users to input parameters to the PLC such as temperature settings, timer or counter preset values , etc. The diagram above shows how easy it is to implement such a device using the 5V reference output and an analog input. Very accurate parameters can be set if an external LCD display (e.g. MDS 100-BW) is used as visual feedback of the settings. Alternatively, a paper scale can be printed to give approximate set value at various angles of the potentiometer’s rotating arm. 10K Ω Potentiomete r A/D#1 to 8 +5V GND Figure 5.2 5.2.3 Reading Analog Input Data The 2 analog input signals are read by the TBASIC co mmand ADC(1) to ADC(2). The ADC(n) function will return a number between 0 and 4095 (12-bit resolu tion), which corresponds to the measured voltage at any of the analog inputs n. The re solution of a 12-bit ADC is 1/4096, th is means that for the 0-5V ADC range, the resolution is 5/4096V = 1.22mV. That means that if you apply a 2.500V to the PLC’ s analog input #3, ADC(3) should return a value of 2.500/5.000 x 4096 = 2048. Note that the CPU only accesses the analog input #n w hen the TBASIC function ADC( n) is called. Hence, in order to monitor the analog input, you have to execute the ADC function periodically. The frequency that the ADC function is called is known as t he “sampling rate” and it depends on how fast the analog

162. Chapter 16 Host Link Command/Response Format 16-5 16.8 Read Timer Present Value (P.V.) Command Format R M n n * nn: Timer1=00, ..... Timer16=0F.... Timer64=3F Response Format R M 10 3 10 2 10 1 10 0 * Timer present value in Decimal The present value (PV) of the specified timer is returned in decimal form as four byte ASCII text characters from 0000 to 9999. 16.9 Read Timer Set Value (S.V.) Command Format R m n n * nn: Timer1=00, ..... Timer16=0F.... Timer64=3F Response Format R m 10 3 10 2 10 1 10 0 * Timer Set Value in Decimal The Set Value (S.V.) of the specified timer is returned in decimal form as four byte ASCII text characters from 0000 to 9999. Note that this command header contains small letter “m” instead of “M” in the “RM” command. 16.10 Read Counter Present Value (P.V.) Command Format R U n n * nn: Counter1=00, ..... Counter16=0F.... Counter64=3F Response Format R U 10 3 10 2 10 1 10 0 * Counter present value in Decimal The Present Value of the specified counter is returned in decimal form as four byte ASCII text characters from 0000 to 9999.

135. Chapter 14 Serial Communications 14-3 8, 1, n 0000 xxxx 8, 2, n 0001 xxxx 8, 1, e 0100 xxxx 8, 2, e 0101 xxxx 8, 1, o 0110 xxxx 8, 2, o 0111 xxxx 7, 1, n 1000 xxxx 7, 2, n 1001 xxxx 7, 1, e 1100 xxxx 7, 2, e 1101 xxxx 7, 1, o 1110 xxxx 7, 2, o 1111 xxxx Where xxxx represents the baud rate of the comm port, as follow: x x x x 0000 0001 0010 0011 0100 0101 0110 0111 Baud Rate 2400 2400 4800 9600 19200 31250 38400 57600 x x x x 1000 1001 1010 1011 1100 1101 1110 1111 Baud Rate 100K 115.2K 230.4K 110 150 300 600 1200 A table of all the available baud rates and COMM formats is shown in the following page. The communication format written as “7,2,e”, which means 7 data bits, 2 stop bits and even parity. Likewise, “8,1,n” means 8 data bits, 1 stop bit and no parity. Y ou can use the table to select the baud number for a certain baud rate and COMM format. COMM1 can work at high baud rate of up to 230.4 K bps. Baud No Table (All numbers in Hexadecimal: &H00 to &HFF) Format Baud 8,1,n 8,1,e 8,1,o 7,1,n 7,1,e 7,1,o 8,2,n 8,2,e 8,2,o 7,2,n 7,2,e 7,2,o 110 0 B 4 B 6 B 8 B C B E B 1 B 5 B 7 B 9 B D B F B 150 0 C 4 C 6 C 8 C C C E C 1 C 5 C 7 C 9 C D C F C 300 0 D 4 D 6 D 8 D C D E D 1 D 5 D 7 D 9 D D D F D 600 0 E 4 E 6 E 8 E C E E E 1 E 5 E 7 E 9 E D E F E 1200 0 F 4 F 6 F 8 F C F E F 1 F 5 F 7 F 9 F D F F F 2400 0 1 4 1 6 1 8 1 C 1 E 1 1 1 5 1 7 1 9 1 D 1 F 1 4800 0 2 4 2 6 2 8 2 C 2 E 2 1 2 5 2 7 2 9 2 D 2 F 2 9600 0 3 4 3 6 3 8 3 C 3 E 3 1 3 5 3 7 3 9 3 D 3 F 3 19200 0 4 4 4 6 4 8 4 C 4 E 4 1 4 5 4 7 4 9 4 D 4 F 4 31250 0 5 4 5 6 5 8 5 C 5 E 5 1 5 5 5 7 5 9 5 D 5 F 5 38400 0 6 4 6 6 6 8 6 C 6 E 6 1 6 5 6 7 6 9 6 D 6 F 6 57600 0 7 4 7 6 7 8 7 C 7 E 7 1 7 5 7 7 7 9 7 D 7 F 7 100K 0 8 4 8 6 8 8 8 C 8 E 8 1 8 5 8 7 8 9 8 D 8 F 8 115K2 0 9 4 9 6 9 8 9 C 9 E 9 1 9 5 9 7 9 9 9 D 9 F 9 230K4 0 A 4 A 6 A 8 A C A E A 1 A 5 A 7 A 9 A D A F A E.g . To set the baud rate of COMM1 to 19200, 7 data bit, 1 stop bit and even parity, execute the statement: SETBAUD 1, &HC4 Important :. Please note that if you change the baud rate or communication format of the COMM port to something that is different from that set in the TLServer , then both the TLServer and TRiLOGI will no longer be able to communicate with the PLC via this COMM port. You will have to either configure the TLServer’s serial port setting using its “Serial Comm unication Setup” routine to match the PLC, or you can cycle the power to the PLC to reset the CO MM port to the default format (38,400, 8,n,1). If you had used “1st.Scan” contac t to activate the SETBAUD command than you will need to cycle the power to the PLC with Jumper J4 shorted to halt the execution of t he SETBAUD command. When the PLC is reset this way, its COMM1 will power up at the default format of 38,400, 8,n,1 only so you will need to configure TLServer’s serial por t to 38,400bps to communicate with it.

117. Chapter 11 Pulse Width Modulated Outputs 11-1 11 PULSE WIDTH MODULATED OUTPUTS 11.1 Introduction Pulse-Width Modulation (PWM) is a highly efficient and convenient way of controlling output voltage to devices with large time constants, such as cont rolling the speed of a DC motor, the power to a heating element, or the position of a proportional valve. The PWM works by first turning on the output to full voltage for a short while and then shutting it off for another short while and then turning it on again, and so on, in consistent and accurate time intervals. This can be illustrated with the following diagram: a b Load Voltage V Full x V Full A verage voltage a + b a = Figure 11.1 The average voltage seen by the load is determined by the “duty cycle” of the PWM waveform. The duty cycle is defined as follow: Duty Cycle = a a + b x 100% Period = (a + b) Frequency = 1/period Hz Average voltage = % duty cycle mult iplied by the full load voltage V Full. Since the voltage applied to the load is either “Fully ON” or “Fully OFF”, it is highl y efficient because the switching transistors are working in their saturated and cut-off region and dissipate very little power when it is fully turned ON. 11.2 Nano-10 PLC PWM Outputs Technical Specifications: No. of Channels 4 Duty Cycle range 0.00 to 100.00 Worst case resolution 0.1% Available Frequencies (Hz) % Frequency Errors : 50Hz to 50 KHz, < + 0.01% @ 100Hz < + 0.5% @ 10KHz < + 2% @ 50KHz Relevant TBASIC commands SETPWM

159. Chapter 16 Host Link Command/Response Format 16-2 Response Format R I 16 1 16 0 * 8-bit Data (Hex) 16.3.1 Definition of Input Channels The following table shows the input numbers as defi ned in TRiLOGI's Input entry table corresponding to the input channel number. Bit7 Input/Output Numbers Bit0 CH00: 8 7 6 5 4 3 2 1 CH01: 16 15 14 13 12 11 10 9 CH02: 24 23 22 21 20 19 18 17 CH03: 32 31 30 29 28 27 26 25 CH04: 40 39 38 37 36 35 34 33 CH05: 48 57 56 45 44 43 42 41 CH06: 56 55 54 53 52 51 50 49 CH07: 64 63 62 61 60 59 58 57 CH08: 72 71 70 69 68 67 66 65 CH09: 80 79 78 77 76 75 74 73 CH0A 16 : 88 87 86 85 84 83 82 81 CH0B 16 : 96 95 94 93 92 91 90 89 CH0C 16 : 104 103 102 101 100 99 98 97 .... .. .. .. .. .. .. .. .. CH1E 16 : 248 247 246 245 244 243 242 241 CH1F 16 : 256 255 254 253 252 251 250 249 The 8-bit inputs of each channel are represented by a two byte ASCII text expression of its hexadecimal value. For example: if inputs 1 to 3 are logic '0's , inputs 4 to 10 are logic '1's and all other inputs are logic '0's, then if you send command “ RI00 * ”, you will get the response “RIF8 * ” (F8 16 =1111 1000 2 ). 16.4 Read Digital Output Channels Command Format R O n n * 8-bit Channel # (Hex) Response Format R O 16 1 16 0 * 8-bit data (Hex)

173. Chapter 16 Host Link Command/Response Format 16-16 16.38 WRITE EEPROM String Data Command Format W X $ n n n n a a ... ... a * EEPROM String ASCII characters Address (Hex) (max. 40 characters) Response Format W X $ * E.g. To write the string data “Hello TR i” at EEPROM String address 12, send host-link command “ RX$000CHello TRi * ”. 16.39 Force Set/Clear Single I/O Bit This new “Wbnnnnxx” command allows you to change a si ngle I/O bit on the PLC. You can force set or clear any single input, output, relay, timer or c ounter bit. This has an advantage over other write commands such as WI, WO, etc that affects the ent ire group of 8 or 16-bits organized into “channels”. Command Format W b n n n n x x * I/O Bit address 00 – Clear I/O bit (OFF) (Hex) FF – SET I/O bit (ON) Response Format W b * I/O Type Bit address nnnn (Hex) Input #1 to #256 0000 to 00FF Output #1 to #256 0100 to 01FF Timer #1 to #256 0200 to 02FF Counter #1 to #256 0300 to 03FF Relay #1 to #256 0400 to 04FF Relay #257 to #512 0500 to 05FF E.g. To force output 1 to ON, send “ Wb0100FF* ”. To turn it OFF, send “ Wb010000* ”

174. Chapter 16 Host Link Command/Response Format 16-17 16.40 Using OMRON Host Link Commands Since the PLCs also support OMRON C20H Host Link commands, which are very similar in construct to our multi-point command/response format, you can al so make use of OMRON commands to supplement the native host link commands. We will only discuss four of the OMRON host link co mmands “RR”, “WR”, “RD” and “WD” in this section because these commands can be used by users to read/write to multiple I/O registers and data memory in a single command (Note: maximum length of command string should be <=80 characters). Note: Since the Nano-10 native protocol command se t typically only supports read/write of single variables and data memory, if you want to read/write multiple memory locations in a single command, you can make use of these OMRON host link commands. 16.40.1 Read IR Registers This command refers to Table 14.1 in Chapter 14 to map the PLC’s I/Os to OMRON IR register space from IR0 to IR519 Command Format @ d d R R n n n n c c c c Device ID Header IR Address (Dec) IR count (Hex) f f * FCS Response Format @ d d R R s s 16 3 16 2 16 1 16 0 ... ... Device ID Header Status 1 st Data (Hex) 00 – OK 15 - Bad 16 3 16 2 16 1 16 0 f f * Last data FCS E.g. To read Timer PV #1 to #7 using this command, send: “ @01RR012800074D* ” The PLC will send return a response “ @01RR00xxxxyyyyzzzz....* ”

130. Chapter 13 LCD Display Programming 13-2 Action Command 1. Clear screen SETLCD 0,1, CHR$(1) 2. No cursor SETLCD 0,1, CHR$(12) 3. Underline Cursor SETLCD 0,1, CHR$(14) 4. Blinking Cursor SETLCD 0,1, CHR$(13) 5. Underline + Blinking Cursor SETLCD 0,1, CHR$(15) 13.3 Displaying Numeric Variable With Multiple Digits The “SETLCD y, x, string” command only overwrites the exact number of characters in the string parameter to the LCD display, and thereafter the curs or is placed back to the location specified by the x and y parameters. Thus if there exists some old charac ters right after the last character it can cause confusion, especially if you are displaying a number. E. g. If you first display the following string at row 1 and column 1: Pressure = 12345 And if you subsequently display the st ring “Pressure = 983” at the same location without first clearing the line, then you will see the followi ng string being displayed: Pressure = 98345 What happens is that the string “ Pressure = 983 ” is correctly displayed but the two old characters “45” left over from previous display would appear to be par t of the new data. This can cause confusion. There are several ways you can eliminate such a display problem: 1) Clear the line first before overwriting with a new st ring. You can create a custom function just to clear a particular line. E.g. if you pa ss the parameter DM[100] to the cu stom function and inside the custom function you do the following: SETLCD DM[100],1, “ ” Hence calling this custom function with DM[100] = 1,2,3, or 4 would clear the corresponding line. 2) A “ quick and lazy” way to do it is to add a few more characters to the back of the string to be displayed which will wipe out old characters that could be present adjacent to the new string. E.g. SETLCD 1,1, “ Money = $ ” + STR$(D) + “ ” 3) If there is data to the right of the currently disp layed string that you cannot overwrite with spaces, then you can restrict the number of di gits that a numeric variable may be converted to using the two parameters from the STR$ or HEX$ command. E.g SETLCD 1,1, “ Temp = ” + STR$(T,4) The STR$(T,4) function will always return 4 digits of the data stored in T. If T is less than 4 digits, then one or more preceding “0”’s will be added. E.g. if T = 12 then this function will return the string “0012. Note that for negative number s the negative sign is counted as par t of the digit count so you

123. Chapter 12 Real Time Clock 12-1 12 REAL TIME CLOCK 12.1 Introduction A Real Time Clock (RTC) is a device that keeps a ccurate date and time information down to the second. The Nano-10 has a built-in Real Time Clock that prov ides calendar and time data for year, month, date, day of week, hour, minute and second, but it is not battery-backed. You can however easily add an optional battery-backed FRAMRTC module and the N ano-10 will sense it automatically and use it upon installation. NOTE: If the RTC battery is not installed or the battery is removed for more than 15 seconds from the FRAMRTC, then the PLC will lose its real time cl ock data when it is powered up even with the FRAMRTC installed. When this happens the RTC.Err bit in the ladder logic special bit will be ON so that user program can use it to alert the operator. The PLC c an also use the RTC.Err bit to trigger an automatic RTC update from an Internet Time Server or from a TLServer that it connects to. 12.2 TBASIC variables Used for Real Time Clock Date Time YEAR DATE[1] HOUR TIME[1] MONTH DATE[2] MINUTES TIME[2] DAY DATE[3] SECOND TIME[3] Day of Week DATE[4] There are 7 registers available in TBASIC that are used to access and configure the date and time. These registers, which are shown above, can be read from and written to just like any other integer variable. The data for these registers are in integer format. DATE[1] : may contain four digits (e.g. 1998, 2003 etc). DATE[4] : 1 for Monday, 2 for Tuesday, .... 7 for Sunday. 12.3 RTC Error Status On Ladder Logic There is a special bit available in TRiLOGI that a llows you to notify the PLC program if the RTC Error event occurs and the RTC Error stat us light is turned on. The RTC E rror event occurs if the RTC is corrupted or damaged (see section 12.8 for more detail) or if the battery is not installed. The special bit is called RTC.Err and can be obtained from the “Special Bi ts” I/O Table. The RTC.Err contact can be used to activate an alarm of some kind. The following l adder logic circuit is an example of this using the RTC.Err bit as an input that cont rols an output called RTC_Alarm:

87. Chapter 5 Analog Inputs 5-1 5 ANALOG INPUTS 5.1 Analog Power Supply The analog power of the PLC is derived from the sa me 24VDC power supply as the CPU. It will generate a 5V regulated DC voltage source that will be used in ternally as voltage reference and is available externally for use by other analog input devices. T he reference voltage output is available on the analog I/O connector terminal block, and may be used as the source voltage for connecting to potentiometers. Its current is limited to 30mA. Thus if you need more current for your analog device, you will need to supply your own +5V DC source. 5.2 Analog Inputs Each Nano-10 has two channels of built-in 0-5V, 12-bi t Analog inputs. The terminal block location for these analog inputs is described in Section 1.2.1 . Electrical Characteristics No. of A/D channel 2 Resolution 12-bit Input Impedance Ch #1 to 2 20.00K Ohms Moving Average 1 to 9 points (user definable) Conversion Time < 4 μ s per channel. 4095 4094 4093 1 2 3 0 Input Voltage 0 5.00 A DC(n) value Fi g ure 5.1 Transfer Function for 12-bit ADC . The DC input impedance of Analog inputs #1 to 2 are all 20.00K ohms (0.1%). This is not a problem when connected to a 0-5V low impedance analog source.

120. Chapter 11 Pulse Width Modulated Outputs 11-4 position. Hence being a closed-loop controller an RC Servo is actually a much more efficient and effective positional control device (for a limited range) than a st epper motor which relies on a constant current in its winding to provide the “holding torque” for positioni ng. The open loop nature of stepper motor means that it does not know if the device is actually being knocked out of its des ired location whereas in the Servo any deviation from its desired location is inst antly being corrected by the servo mechanism. 11.4.1 Using Nano-10 PWM Output To Control RC Servo (Non-Isolated) As you probably have realized by now that you can us e a single PWM output to very easily position the RC Servo to whatever position within its range of travel. However, since the Nano-10 power supply is 24V (v s 4.8 to 6V on the typical RC Servo) and the PWM output is NPN (current sink) type, the signal to the servo is actually inverted if you connect the PLC’s output to the Servo’s “cont rol” input directly. 3 (PWM2) 4 24V DC Power For PLC +V 0V OUTPUTS 0V + - 1K 1 2 Control +6V 4.8V to 6V DCPower For Servo 0V 1N4001 RC Servo Figure 11.4 Non-isolated Interace to RC Servo As shown in the above figure, we use a 1K ohm resist or to pull up the “Control” input to the RC Servo’s power supply so that when the PLC’s output is OFF, the Control input is +6V and when the PLC output is ON, the “Control” input is pulled to low. The 1N4001 diode is to prevent the 24V weak pullup si gnal at the PLC output fr om entering the servo’s “Control” input. As such, when the PLC output is ON , the “Control” input is pulled down to about 1 diode drop (about 0.7V). In other words, the RC Servo connected above are controlled by the PLC’s PWM output but the duty cycle is inverted. I.e. To send a 5% positive PWM c ontrol pulse to the Servo, you can run the following statement: SETPWM 2, 9500, 50 ‘ Set PWM 2 output to 95% duty cycle at 50 Hz Likewise, to send a 10% positive PWM control pulse to the Servo, you will need to run the following statement: SETPWM 2, 9000, 50 ‘ Set PWM 2 output to 90% duty cycle at 50 Hz

172. Chapter 16 Host Link Command/Response Format 16-15 Response Format R X $ a a a ... ... a a a * E.g. To read the string data stored at EEPROM address 10, send host-link command “ RX$000A * ”. The response string will contain stri ng data stored in the EEPROM (maximum 40 characters). 16.36 Write Analog Output Upon receiving this command, the PLC updates the value of its DAC data at the analog output channel (i.e. no need for PLC to execute SETDAC to update the analog output). Command Format W A n n c c 16 3 16 2 16 1 16 0 ... 16 1 16 0 * Starting Analog c hannel DAC output data DAC output data channel # (01-02h) count of 1 st channel for subsequent ch (Hex) Response Format W A c c * channel count (Hex) 16.37 Write EEPROM Integer Data Command Format W X I n n n n c c 16 3 16 2 16 1 16 0 ... Starting EEPROM count Hex data for starting Address (0001-xxxx) (01-10h) EEPROM addr ess 16 3 16 2 16 1 16 0 ... 16 1 16 0 * data for subsequent EEPROM addresses Response Format W X I * Maximum allowable word count per command is 16 (01 to 10 Hex).

166. Chapter 16 Host Link Command/Response Format 16-9 16.18 Write Outputs Command Format W O n n 16 1 16 0 * Channel # Data (00 to 0F) Response Format W O * 16.19 Write Relays Command Format W R n n 16 1 16 0 * Channel # Data Response Format W R * 16.20 Write Timer-contacts Command Format W T n n 16 1 16 0 * Channel # Data (00 to 07) Response Format W T * 16.21 Write Counter-contacts Command Format W C n n 16 1 16 0 * Channel # Data (00 to 07)

167. Chapter 16 Host Link Command/Response Format 16-10 Response Format W C * 16.22 Write Timer Present Value (P.V.) Command Format W M n n 10 3 10 2 10 1 10 0 * Timer1=00, New timer PV ........ Timer64=3F (Hex) Response Format W M * Please note that the timer number starts from 00, wh ich represent timer #1, then 01 represents timer #2. and so on. 16.23 Write Timer Set Value (S.V.) Command Format W m n n 10 3 10 2 10 1 10 0 * Timer1=00, New timer SV .... Timer64=3F (Hex) Response Format W m * Note: the 2nd character is a lower case “m” in stead of the upper case “M” of “WM” command. 16.24 Write Counter Present Value (P.V.) Command Format W U n n 10 3 10 2 10 1 10 0 * Counter1=00, New PV .... Counter64=3F (Hex)

170. Chapter 16 Host Link Command/Response Format 16-13 16.30 Write Variable - High Speed Counter HSCPV[ ] Command Format W V H n 16 7 16 6 16 5 16 4 16 3 16 2 16 1 16 0 * 1 or 2 8 Hexadecimal Digit for 32-bit integer Response Format W V H * E.g. To clear the value of HSCPV[2], send hostlink command “ WVH200000000* ”. 16.31 Halting the PLC Command Format C 2 * Response Format C 2 * When the PLC receives this command, it temporarily halts the execution of the PLC's ladder program after the current scan. However, the PLC conti nues to scan the I/Os and processes host link commands sent to it and will report the current I/O data and internal variables to the host computer. 16.32 Resume PLC Operation Command Format C 1 * Response Format C 1 * When the PLC receives this command, it will resu me execution of the ladder program if it had been halted previously by the "C2" command. Otherwise, this command has no effect. 16.33 Read Analog Input This command forces the PLC to refresh the value of its ADC data at the anal og channel before returning its value in the response string (i.e. no need for the PL C to execute ADC(n) function to refresh the analog input)

50. Chapter 2 Ethernet Port 2-23 Table 2.1 Memory Mapping of Nano-10 CPU Internal Data to MODBUS Register NANO I/O # MODBUS Word Addr. Mapping MODBUS Bit Addr. Mapping Input n n 1 to 16 40001.1 to 40001.16 1 to16 17 to 32 40002.1 to 40002.16 17 to 32 33 to 48 40003.1 to 40003.16 33 to 48 49 to 64 40004.1 to 40004.16 49 to 64 65 to 80 40005.1 to 40005.16 65 to 80 81 to 96 40006.1 to 40006.16 81 to 96 Output n 256 + n 1 to 16 40017.1 to 40017.16 257 to 272 17 to 32 40018.1 to 40018.16 273 to 288 33 to 48 40019.1 to 40019.16 289 to 304 49 to 64 40020.1 to 40020.16 305 to 320 65 to 80 40021.1 to 40021.16 321 to 336 81 to 96 40022.1 to 40022.16 337 to 352 Timer n 512+n 1 to 16 40033.1 to 40033.16 513 to 528 17 to 32 40034.1 to 40034.16 529 to 544 33 to 48 40035.1 to 40035.16 545 to 560 49 to 64 40036.1 to 40036.16 561 to 576 Counter n 768 + n 1 to 16 40049.1 to 40049.16 769 to 784 17 to 32 40050.1 to 40050.16 785 to 800 33 to 48 40051.1 to 40051.16 801 to 816 49 to 64 40052.1 to 40052.16 817 to 832 Relay n 1024 + n 1 to 16 40065.1 to 40065.16 1025 to 1040 17 to 32 40066.1 to 40066.16 1041 to 1056 33 to 48 40067.1 to 40067.16 1057 to 1072 49 to 64 40068.1 to 40068.16 1073 to 1088 65 to 80 40069.1 to 40069.16 1089 to 1104 81 to 96 40070.1 to 40070.16 1105 to 1120 97 to 112 40071.1 to 40071.16 1121 to 1136 113 to 128 40072.1 to 40072.16 1137 to 1152 129 to 144 40073.1 to 40073.16 1153 to 1168 145 to 160 40074.1 to 40074.16 1169 to 1184 161 to 176 40075.1 to 40075.16 1185 to 1200 177 to 192 40076.1 to 40076.16 1201 to 1216 193 to 208 40077.1 to 40077.16 1217 to 1232 209 to 224 40078.1 to 40078.16 1233 to 1248 .. .. .. 497 to 512 40097.1 to 40097.16 1521 to 1536

140. Chapter 14 Serial Communications 14-8 Table 14.1: Memory Mapping of to other PLCs PLC I/O # OMRON MODBUS Word Addr. mapping MODBUS Bit Addr. Mapping Input n n 1 to 16 IR00.0 to IR00.15 40001.1 to 40001.16 1 to16 17 to 32 IR01.0 to IR01.15 40002.1 to 40002.16 17 to 32 33 to 48 IR02.0 to IR02.15 40003.1 to 40003.16 33 to 48 49 to 64 IR03.0 to IR03.15 40004.1 to 40004.16 49 to 64 65 to 80 IR04.0 to IR04.15 40005.1 to 40005.16 65 to 80 81 to 96 IR05.0 to IR05.15 40006.1 to 40006.16 81 to 96 Output n 256 + n 1 to 16 IR16.0 to IR16.15 40017.1 to 40017.16 257 to 272 17 to 32 IR17.0 to IR17.15 40018.1 to 40018.16 273 to 288 33 to 48 IR18.0 to IR18.15 40019.1 to 40019.16 289 to 304 49 to 64 IR19.0 to IR19.15 40020.1 to 40020.16 305 to 320 65 to 80 IR20.0 to IR20.15 40021.1 to 40021.16 321 to 336 81 to 96 IR21.0 to IR21.15 40022.1 to 40022.16 337 to 352 Timer N 512+n 1 to 16 IR32.0 to IR32.15 40033.1 to 40033.16 513 to 528 17 to 32 IR33.0 to IR33.15 40034.1 to 40034.16 529 to 544 33 to 48 IR34.0 to IR34.15 40035.1 to 40035.16 545 to 560 49 to 64 IR35.0 to IR35.15 40036.1 to 40036.16 561 to 576 Counter n 768 + n 1 to 16 IR48.0 to IR48.15 40049.1 to 40049.16 769 to 784 17 to 32 IR49.0 to IR49.15 40050.1 to 40050.16 785 to 800 33 to 48 IR50.0 to IR50.15 40051.1 to 40051.16 801 to 816 49 to 64 IR51.0 to IR51.15 40052.1 to 40052.16 817 to 832 Relay n 1024 + n 1 to 16 IR64.0 to IR64.15 40065.1 to 40065.16 1025 to 1040 17 to 32 IR65.0 to IR65.15 40066.1 to 40066.16 1041 to 1056 33 to 48 IR66.0 to IR66.15 40067.1 to 40067.16 1057 to 1072 49 to 64 IR67.0 to IR67.15 40068.1 to 40068.16 1073 to 1088 65 to 80 IR68.0 to IR68.15 40069.1 to 40069.16 1089 to 1104 81 to 96 IR69.0 to IR69.15 40070.1 to 40070.16 1105 to 1120 97 to 112 IR70.0 to IR70.15 40071.1 to 40071.16 1121 to 1136 113 to 128 IR71.0 to IR71.15 40072.1 to 40072.16 1137 to 1152 129 to 144 IR72.0 to IR72.15 40073.1 to 40073.16 1153 to 1168 145 to 160 IR73.0 to IR73.15 40074.1 to 40074.16 1169 to 1184 161 to 176 IR74.0 to IR74.15 40075.1 to 40075.16 1185 to 1200 177 to 192 IR75.0 to IR75.15 40076.1 to 40076.16 1201 to 1216 193 to 208 IR76.0 to IR76.15 40077.1 to 40077.16 1217 to 1232 209 to 224 IR77.0 to IR77.15 40078.1 to 40078.16 1233 to 1248 .. .. .. .. 497 to 512 IR96.0 to IR96.15 40097.1 to 40097.16 1521 to 1536 * MODBUS is a registered trademark of Groupe Schneider. OMRON is a registered trademark of OMRON Corporation.

169. Chapter 16 Host Link Command/Response Format 16-12 E.g. To assign the string “ Super PLC” to the string variable P$, send hostlink command “ WV$P Super PLC* ”. 16.28 Write Variable - Data Memory (DM[1] to DM[4000]) Command Format W V D 16 3 16 2 16 1 16 0 16 3 16 2 16 1 16 0 * 16-bit Index to array 16-bit Integer Data 0001 to 0FA0 (4000 10 ) Response Format W V D * E.g. To write the value 1234 10 (=4D2 16 )to DM[1000], send hostlink command “ WVD03E804D2 *”. (1000 10 = 3E8 16 ) 16.29 Write Variable - System Variables System Variable type System Variable type input[ ] 01 clk[ ] 08 output[ ] 02 date[ ] 09 relay[ ] 03 - 0A timer[ ] 04 ADC* 0B ctr[ ] 05 DAC* 0C timerPV[ ] 06 PWM* 0D ctrPV[ ] 07 * Not a system variable in TBASIC Command Format W V S n n 16 1 16 0 16 3 16 2 16 1 16 0 * type Index 16-bit Integer Data type (01 to 0D) - denotes the type of system variable to access, index (01 to 1F) - index into the array, starting from 01. Response Format W V S * E.g. To set clk[1] (which represents the hour of the RTC) to 14, send the command “ WVS0801000E *” to the PLC.

114. Chapter 10 Stepper Motor Control 10-4 10.3.3 Using the STEPMOVE Command Once the STEPSPEED command is executed, the STEPMOVE command can be used to move the stepper motor forwards or backwards. STEPMOVE ch, count, r The ch parameter specifies which stepper motor channel is being used and should be ‘1’ on Nano-10 PLC. The count parameter specifies how many pulses the motor will move. If the motor were in half-step driver mode, then count would be in half steps. The r parameter specifies which internal relay will be activated once the motor has moved count number of steps. This relay would be cleared when the STEPMOVE command is executed in case it was already activated. Example 1: Moving Forwards STEPMOVE 1, 500, 101 ‘ channel 1 would send 500 pulses ‘ to a driver and then turn on relay 101 Example 2: Moving Backwards STEPMOVE 1, -500, 101 ‘ channel 1 would send 500 pulses ‘ to a driver and then turn on relay 101 10.3.4 Using the STEPMOVEABS Command This command allows you to move the stepper motor # ch to an absolute position indicated by the position parameter. At the end of the move the relay # r will be turned ON. Position can be between -2 31 to +2 31 (i.e. about ± 2 x 10 9 ). The absolute position is calculated with respect to the last move from the "HOME" position. (The HOME position is set when the STEPHOME command is executed). The speed and acceleration profile are determined by the STEPSPEED command as in the original command set. This command automatically computes the number of pulses and the direction required to move the stepper motor to the new position with respect to the current location. The current location can be determined at any time by the STEPCOUNTABS() function. Once the STEPMOVEABS command is executed, re-execution of this command or the STEPMOVE command will have no effect until the entire motion is completed or aborted by the STEPSTOP command. The STEPMOVEABS command is also used to specify whether the PLC is a motor controller, a full-step motor driver, or a half-step motor driver. STEPMOVEABS ch, position, r The ch parameter would specify which stepper moto r channel is being used and should be a “1” on Nano- 10. The position parameter specifies how many pulses the moto r will move relative to its home position.

163. Chapter 16 Host Link Command/Response Format 16-6 16.11 Read Counter Set Value (S.V.) Command Format R u n n * nn: Counter1=00, ..... Counter16=0F.... Counter64=3F Response Format R u 10 3 10 2 10 1 10 0 * Counter Set Value in Decimal The Set Value of the specified counter is returned in dec imal form as four byte ASCII text characters from 0000 to 9999. Note that this header contains small letter “u” instead of “U” in the “RU” command. 16.12 Read Variable - Integers (A to Z) Command Format R V I alphabet * A,B.C....Z Response Format R V I 16 7 16 6 16 5 16 4 16 3 16 2 16 1 16 0 * 8 Hexadecimal Digit for 32-bit integer E.g. To read the value of the va riable “K”, send host-link command “ RVIK * ”. If variable K contains the value 123456 10 (=1E240 16 ), the PLC will send the response string as “ RVI0001E240 * ”. 16.13 Read Variable - Strings (A$ to Z$) Command Format R V $ alphabet * A,B.C....Z Response Format R V $ a a a ... ... a a a * ASCII characters of the string (variable length) E.g. To read the value of the stri ng variable “M$”, send host-link command “ RV$M *”. If variable M$ contains the string “Hello World”, the PLC will send the response string as “ RV$Hello World *”.

171. Chapter 16 Host Link Command/Response Format 16-14 Command Format R A n n c c * Starting Analog Channel count Channel # (01-08h) (01 to 08h) Response Format R A 16 3 16 2 16 1 16 0 ... 16 2 16 1 16 0 * Starting channel ... Ending channel 16-bit Data (Hex) 16-bit Data (Hex) E.g. To read 4 channels of Analog i nputs starting from Ch #2, Send “ RA0204* ”. The response string will contain 4 sets of data for channel 2, 3, 4 and 5. 16.34 Read EEPROM Integer Data Command Format R X I n n n n c c * EEPROM starting Word Count Address (Hex) (01 to 20h) Response Format R X I 16 3 16 2 16 1 16 0 ... 16 2 16 1 16 0 * 1 st EEPROM Integer ... Last EEPROM 16-bit Data (Hex) 16-bit Data (Hex) Maximum allowable word count per command is 32 ( 01 to 20 Hex). If “count” is > 32, only the first 32 words will be returned. E.g. To read the 10 words of EEPROM data starting from address 100, send host-link command “ RXI00640A * ”. The response string will contain 10 sets of 16-bit data (4 ASCII hex digit per set). 16.35 Read EEPROM String Data (r47 Firmware Only) Command Format R X $ n n n n * EEPROM String starting Address (Hex)

165. Chapter 16 Host Link Command/Response Format 16-8 Command Format R V S n n 16 1 16 0 * type Index type (01 to 0D) - denotes the type of system variable to access, index (01 to 1F) - index into the array, starting from 01. Response Format R V S 16 3 16 2 16 1 16 0 * 4 Hexadecimal Digit for 16-bit integer Example: To read the value of DATE[2] (whi ch represents the month of the RTC), send command “ RVS0902 *” and if the PLC responds with “ RVS0005 ”, it means the month is May. 16.16 Read Variable - High Speed Counter HSCPV[ ] Command Format R V H n * Channel: 1 or 2 Response Format R V H 16 7 16 6 16 5 16 4 16 3 16 2 16 1 16 0 * 8 Hexadecimal Digit for 32-bit integer E.g. To read the value of HSCPV[2], send hostlink command “ RVH2 *”. If variable HSCPV[2] contains the value 123456 10 (=1E240 16 ), the PLC will send the response string as “ RVH0001E240 *”. 16.17 Write Inputs Command Format W I n n 16 1 16 0 * Channel # Data (00 to 0F) Response Format W I *

121. Chapter 11 Pulse Width Modulated Outputs 11-5 11.4.2 Using Nano-10 PWM Output To Control RC Servo (Opto-Isolated) You can also use the PLC’s PWM output to drive an optocoupler (such as 4N35) and the output from the optocoupler is use to provide control pulse to the RC Servo, as shown in Figure 11.5 3 (PWM2) 4 24V DC Power For PLC +V 0V OUTPUTS GND 2K2 4N35 Optoisolator 1 2 5 4 1 2 + - 1K Control +6V 4.8V to 6V DCPower For Servo 0V RC Servo Figure 11.5 Opto-Isolated Interace to RC Servo In the opto-isolated interface shown above, the power supply to the PLC and that to the RC Servo are completely isolated (no common ground required). Also since the interface inverts the output signal from the PLC, no software inversion is necessary. i.e When the PLC NPN output is OFF, the “control” input to the RC Servo will be OFF, and when the PLC NPN output is ON, the “control” input to the RC Servo = +6V. Hence, to send a 5% positive PWM control pulse to the Servo, you can run the following statement: SETPWM 2, 500, 50 ‘ Set PWM 2 output to 5% duty cycle at 50 Hz Likewise, to send a 10% positive PWM control pulse to the Servo, you can run the following statement: SETPWM 2, 1000, 50 ‘ Set PWM 2 output to 10% duty cycle at 50 Hz Of course you can replace the duty cycle with a value (e.g. DM[1]) and run statement such as: SETPWM 2, DM[1], 50 ‘ Set PWM 2 output to DM[1]/100% duty cycle at 50 Hz 11.4.3 RC Servo Positioning Resolution Since the resolution on the Nano-10 PLC’s PWM output is precise to 0.01% at 50Hz, this means that you can get a maximum of 500 discrete positions within the travel range of the RC Servo. This should be sufficiently accurate for many applications such as HVAC damper control or control of proportional valves. The actual positioning accuracy and prec ision, however, will depend on the quality of the RC Servo.

182. Chapter 17 I2C Communication 17-3 These 3 new TBASIC commands are only available on i-TRiLOGI version 6.40 and above, and they are only enabled on Nano-10 or FMD PLCs that are install ed with I2C-FRTC. If you are still running the older version of I-TRiLOGI, you can get a free update by clicking on the “Help” menu on your production version of I-TRiLOGI software and follow the “Upgr ade TRiLOGI” link to download the latest I-TRiLOGI software in order to use these 3 newly added commands. Both I2C_WRITE and I2C_READ commands use a range of data memory DM[ ] to transmit the data to be written into the device or to be read from the device. The parameters comprise the I2C slave address, the starting index of the DM[] memory location to use and the number of bytes to be sent/received from the slave. 17.2.1 I2C_WRITE An I2C_WRITE command begins with the master (PLC) sendi ng the START bit, followed by a 7-bit slave address, and then a “R/W” bit set to low, which indica tes that it is a WRITE command. If the slave device with the targeted slave address is present, it w ill send the ACK response to the master on the 9 th clock cycle. Otherwise the master sends a ST OP bit and quits the I2C_WRITE function. If the slave does send the ACK bit, the master will t hen send out a number of data bytes to be written to the slave and the slave will respond with the ACK bit wi th the completion of each byte it received. After the last data byte has been written to the slave, and if the master is not expecting to read any data from the slave, the master must then immediately send the STOP bit by executing the I2C_STOP command (to be described later) to indicate the End-of-Write to the slave. The PLC program can determine if the I2C_WRITE is successful by checking with the STATUS(2) command. The syntax of the I2C_WRITE command is as follow: I2C_WRITE i2cslave, dmstart, count Purpose Special command to execute a I2C WRITE out of the PLC's I2C port (if so equipped). The CPU will send a I2C START, followed by the slave address byte ( i2cslave ) and count number of data bytes from the DM[ dmstart ] up to DM[ dmstart+count-1 ] i2cslave - The 7-bit slave address that the CPU is writing to. dmstart - The starting index of the DM[ ] t hat contains the first data byte count - number of byte data to send (m aximum is dependent on the slave). Examples DM[5]= 12: DM[6]= 34 : DM[7]= 56 I2C_WRITE &H60,5,3 I2C_STOP Comments Following the START bit, the CPU will write the 7-bit slave address &H60 (=110 0000 binary) and a R/W bit set to 0, followed by the byte data stored in DM[5], DM[6] and DM[7]. The command automatically checks for ACK r eceived from the slave device and the user

183. Chapter 17 I2C Communication 17-4 program can check the status of this opera tion by testing the STATUS(2) function. STATUS(2) returns a 1 if ACK is received , and 0 if no ACK is received after time out. Note: This command does not automatically generate the I2C STOP bit, this is to allow the CPU to perform a I2C_READ following a I2 C_WRITE. I2C READ after WRITE is commonly encountered in I2C protocol which requires using the I2C_WRITE to set the internal pointer address in the slave devi ce and then followed by the I2C_READ command. Therefore, if your command involves only I2C_WRITE, you must end the WRITE command by executing a I2C_STOP statement. 17.2.2 I2C_READ An I2C_READ command begins with the master (PLC) sendi ng the START bit, followed by a 7-bit slave address, and then a “R/W” bit set to high, which indica tes that it is a READ command. If the slave device with the targeted slave address is present, it will send the ACK response to the master. Otherwise the master sends a STOP bit and quit the I2C_WRITE function. If the slave does send the ACK bit, the master will then toggle the SCL (clock) signal and the slave will send the data byte one bit at a time in response to the SCL pulses. After an 8-bit byte has been received, the master will automatically send the ACK bit to the slave and the slave will continue to send the next byte sequentially out to the master. After the last data byte has been read from the slav e, the master will not send the ACK bit but will automatically send the STOP bit to the slave. This indicates the End-of-Read to the slave and the communication is complete. I2C_READ i2cslave, dmstart, count Purpose Special command to execute a I2C_READ out of the PLC's I2C port (if so equipped). The CPU will send a I2C START bit, followed by the slave address byte ( i2cslave ) with "R/W" bit set to high, and t hen send out the number of clock pulses required to read count number of data bytes from t he the slave. The data bytes received from the slave will be st ored in the memory location DM[ dmstart ] to DM[ dmstart+count-1 ]. After receiving all the required data bytes the CPU automatically send the I2C STOP bit to the slave to end the communication. i2cslave - The 7-bit slave address that the CPU is reading from. dmstart - The starting index of the DM[ ] t hat is to receive the first data count - number of byte data bytes to read from the slave. Examples I2C_READ &H0C,21,2 ' read 2 bytes into DM[21] and DM[22]

175. Chapter 16 Host Link Command/Response Format 16-18 16.40.2 WRITE IR Registers This command refers to Table 14.1 in Chapter 14 to map the PLC’s I/Os to OMRON IR register space from IR000 to IR519 Command Format @ d d W R n n n n 16 3 16 2 16 1 16 0 .... Device ID Header IR Start Addr(Dec) 1 st data 16 3 16 2 16 1 16 0 f f * Last data FCS Response Format @ d d W R s s f f * Device ID Header Status FCS 00 – OK E.g. To Write to CtrPV #1 to #2 using this command, send: “@01WR0256xxxxyyyyff*” where xxxx and yyyy are the hex values to be written to CtrPV 1 & 2. 16.40.3 Read Data Memory DM[1] to DM[4000] Command Format @ d d R D n n n n c c c c Device ID Header DM Address (Dec) DM count (Hex) f f * FCS Response Format @ d d R D s s 16 3 16 2 16 1 16 0 ... ... Device ID Header Status 1 st Data (Hex) 00 – OK 16 3 16 2 16 1 16 0 f f * Last data FCS

168. Chapter 16 Host Link Command/Response Format 16-11 Response Format W U * 16.25 Write Counter Set Value (S.V.) Command Format W u n n 10 3 10 2 10 1 10 0 * Counter1=00, New Counter SV .... Counter64=3F (Hex) Response Format W u * Note: the 2nd character is a lower case “u” instead of the upper case “U” of the “WU” command. 16.26 Write Variable - Integers (A to Z) Command Format W V I alphabet 16 7 16 6 16 5 16 4 16 3 16 2 16 1 16 0 * A,B.C....Z 8 Hexadecimal Digit for 32-bit integer Response Format W V I * E.g. To assign variable “K” to number 56789 10 (=0DD5 16 ), send hostlink command “ WVIK00000DD5* ”. 16.27 Write Variable - Strings (A$ to Z$) Command Format W V $ alphabet a a ... ... a a * A,B.C....Z ASCII characters of the string (variable length) Response Format W V $ *

112. Chapter 10 Stepper Motor Control 10-2 10.2.1 Interfacing to 5V Stepper Motor Driver Inputs Some stepper motor drivers accept only 5V signals from the stepper motor controller. In such a case, you need to determine whether the driver’s inputs are opto-isolated. If they are, then you can simply connect a 2.2K current limiting resistor in series with the path from the PLC’s output to the driver’s inputs, as shown in Figure 10.1. Figure 10.1 However, if the stepper motor driver input is onl y 5V CMOS level and non opto-isolated, then you need to convert the 24V NPN PLC outputs to 5V. This can be achieved using a low cost transistor such as a 2N4403. A better way is to use an opto-isolator with a logic level output, as shown in Figure 10.2. This provides a galvanic isolation between the PLC and the stepper motor driver. 1 2 24V DC Power Supply for PLC +V 0V OUTPUTS GND 2K2 resistor (2.2K) Logic output Optoisolator H11L2 or H11L3 (Quality Technology) 1 2 5 4 +5V To 5V CMOS stepper driver input (5mA max) 6 0V (Stepper’s supply) Figure 10.2 Conversion of Nano- 10 outputs to 5V logic level 1 3 4 +24V 24V DC Power S for PLC +V 0V Nano-10 PLC OUTPUTS GND Direction Select Input Stepping Pulse Input Stepper Motor Driver Calculation : I F = 10mA R = (V - 5)/0.01 e.g. for V=24V, R = (24-5)/0.01 =1.9K Select R=2K2 Rating = 19 2 /2200 = 0.16W Use 0.5W resistor. R R I f I f PLC’s Power Supply 2 GND

118. Chapter 11 Pulse Width Modulated Outputs 11-2 Unlike in the T100M+ PLCs, which only support 8 fixed frequencies settings, the PWM channels in the Nano-10 PLC can generate pulses with frequency ranging fr om 50Hz all the way to 50KHz. At the lower frequency range, the output frequency can be extremely a ccurate (less than 0.01% error). Even at 10KHz the output frequency error is less than 0.5%. This makes it possible to use the PWM channels to generate square wave pulses of a certain frequency. Usually it is better to select as high a frequency as possible because the resulting effect is smoother for higher frequencies. However, some systems may not respond properly if the PWM frequency is too high, in such cases a lower frequency should be selected. The TBASIC SETPWM statement controls the frequency and duty- cycle settings of the PWM channel. The Nano-10 PLC features two channels of PWM on it s digital outputs #1 and #2(PWM channel #1 and #2). Since both PWM outputs are high voltage, high current outputs (24V, 4A peak, 2A continuous) they can be used to directly control the speed of a small DC mo tor. They can also directly drive proportional (variable position) valves whose opening is dependent on the applied voltage. Note: When using the PWM output to drive a motor or solenoid valve, please take note of the need to add a bypass diode to absorb the inductive kick that will occur when the output current to the load is turned OFF, as mentioned in Chapter 1.5.3. 11.3 Increasing Output Drive Current (Opto-Isolated) The advantage of using the PWM is that you can easily amplify the drive cu rrent to a larger load such as a larger permanent magnet DC motor by using a power transistor or power MOSFET to boost the current switching capability. If the load is of a different voltage and the load current is high, you should use an opto-isolator to isolate the PLC from the load, as in Figure 11.2 3 (PWM2) 4 24 V DC Power For PLC +V 0V OUTPUTS GND 2K2 + - Flyback Diode ~ Bridge Rectifier A C M 4N35 Optoisolator 1 2 S D G N-channel Power MOSFET e.g. IRF530 can sink 12A DC at up to DC100V max. Voltage divider to obtain approx. 10V DC at gate G. For DC48V load, choose R1 = 3.9K, R2=1K R1 R2 5 4 6 220K 1 2 Figure 11.2 PWM Speed Control of a large DC Motor. Note: 1. The opto-isolator must be able to operate at a frequency matching that of the PWM frequency, otherwise the resulting output waveform will be distorted and effective speed control cannot be attained.

18. Chapter 1 Installation Guide 1-6 NANO-10 Input Input +24V 0V NPN sensor Limit Switch Si g nal ( Normall y Open ) 0V NANO-10 Input = logic '1' when Limit Switch is closed Input = logic '1' when object is sensed Input Voltage for Logic 0: Open Circuit or +10V to +24VDC Input Voltage for Logic 1: 0V to +2.5V DC Figure 1.5 –Interfacing to Limit Switch and NPN Sensor 1.5 Digital Output Circuits 1.5.1 Electrical Specifications: Output #1 & 2 Output #3 & 4 Output Driver type NPN Darlington Transistors Voltage-free Contacts (Isolated pair per output) Maximum Breakdown Voltage 55V 1000V RMS (1 min) Maximum Output Current: 4A 5A @24V/120VAC 2A @ 250VAC Continuous Output Current 2A 5A @24V/120VAC 2A @ 250VAC Output Voltage when OFF Resistor pulled up to 24V power rail None Output Voltage when ON: 0.2V @2A 0V @2A Inductive Back EMF Bypass Yes (Intrinsic Zener @55V) None All outputs have red colored LED indicators. The Nano-10 PLC employs “sinking” (NPN) type power MOSFET on its two solid state output #1 and #2 that turn ON by sinking current from the load to the 0V terminal. Note: Output #1 and #2 can also be configured as 1) PWM outputs to drive heating elements or proporti onal valves using the SETPWM command – please see Chapter 11 for more information. 2) Stepper Motor Controller : to send pulse and direction signals to an external stepper motor driver in order to control motion of a stepper motor. See Chapter 10 for more details.

149. Chapter 15 Host Link Communication Protocol 15-3 Host Computer The F-Series PLC Send Ctrl - E (05H) and wait for echo Send Command string to controller Wait for response Ready to process command: return Ctrl - E (05H) Execute command. Return Response string to host A ccept Response Check for errors Figure 15.1 15.4 MULTI-POINT COMMUNICATION SYSTEM In this system, one host computer may be connected to either a single PLC (via RS485) or multiple PLCs on an RS485 network. 15.4.1 Command/Response Frame Format (Multi-point) @ n n x x .... .... .... x x * Device ID Header Data FCS Terminator Each command frame starts with the character "@ " and two-byte hexadecimal representation of the controller's ID (00 to FF), and ends with a two-byte "Frame Check Sequence" (FCS) and the terminator. FCS is provided for detecting communication errors in the serial bit-stream. If desired, the command frame may omit calculating the FCS simply by putti ng the characters "00" in place of the FCS. Note : we call “00” the “wildcard” FCS, which is availabl e when the PLC is in “auto protocol” mode. This is to facilitate easy testing of the multi-point protocol. However, the wildcard FCS can be disabled if the PLC has executed the SETPROTOCOL n , 5 to put its COMM port n into pure native mode. In that case you will have to supply the actual FCS to your command string.

152. Chapter 15 Host Link Communication Protocol 15-6 15.5 RS485 Primer 15.5.1 RS485 Network Interface Hardware The built-in RS-485 interface allows the Nano-10 PL C to be networked together using very low cost twisted-pair cables. Since the N ano-10 PLCs are fitted with a 1/8-power RS485 driver such as the 75HVD3082, up to 256 devices can be connected toget her. The twisted-pair cable goes from node to node in a daisy chain fashion and should be termi nated by a 120-ohm resistor as shown below. Host Computer with RS - 485 or F-series Twisted - pair RS485 network cable 1 20 Ω Terminating resistor 560 560 +5V 0V + _ + + + + _ _ _ _ RS485 T100MD + RS485 T28H - Relay RS485 Nano-10 PLC RS485 Figure 15.2 Note that the two wires are not interchangeable so they must be wired the same way to each controller. The maximum wire length should not be more than 1200 meters (4000 feet). RS-485 uses balanced or differential drivers and receivers, which means that the logic state of t he transmitted signal depends on the differential voltage between the two wires and not on the voltage with respect to a common ground. As there will be times when no transmitters are active (which leaves the wi res in "floating" state), it is good practice to ensure that the RS-485 receivers will indicate to the CPUs that there is no data to receive. In order to do this, we should hold the twis ted pair in the logic '1' stat e by applying a differential bias to the lines using a pair of 560 Ω to 1K Ω biasing resistors connected to a +9V (at least +5V) and 0V supply as shown in Figure 15.2. Otherwise, random noise on the pair could be falsely interpreted as data. The two biasing resistors are necessary to ensur e robust data communication in actual applications. Some RS485 converters may already have biasing bu ilt-in so the biasing resistors may not be needed. However, if the master is an F-series, M-series or Nano PLC then you should use the biasing resistor to fix the logic states to a known state. Alt hough in a lab environment the PLCs may be able to communicate without the biasing re sistors, their use is strongly re commended for industrial applications. 15.5.2 Protection of RS485 Interface The simple, direct multi-drop wiring shown in Figure 15.2 will work well if all the networked PLCs are in close proximity and they all share a common power s upply. They will even work for long distance as long as there are no wiring errors. However, in an indus trial environment, the PLCs are most likely far apart and may each have their own power supply. Since processes are often modified regularly, should somebody on one occasion by mistake short one of the PLC’s RS485 to high voltage, all the PLCs connected to the same RS485 wiring will be fried simultaneous ly. This can result in very costly down time for the whole process because all of the PLCs connected to the network will need to be repaired. Hence, for networking over long dist ances and involving more than a few PLCs, it is important to either strengthen or protect the RS485 in terface, as described below:

9. USER MANUAL Page viii 15.5.5   TROUBLE-SHOOTING AN RS485 NE TWORK ............................................................ 15-9   16   HOST LINK PROTOCOL FORMAT 16-1   16.1   Device ID Read................................................................................................................. ..... 16-1   16.2   Device ID Write................................................................................................................ ...... 16-1   16.3   Read Digital I nput Cha nnels................................................................................................ 16-1   16.3.1   Definition of Input C hannels........................................................................................... 16-2   16.4   Read Digital Ou tput Ch annels............................................................................................. 16-2   16.5   Read Internal Relay Ch annels ............................................................................................. 16-3   16.5.1   Definition of Internal Relay Channel Numbers .............................................................. 16-3   16.6   Read Timer Contact s............................................................................................................ 16-4   16.6.1   Definition of Timer-Cont act Channel Numbers .............................................................. 16-4   16.7   Read Counter Cont acts........................................................................................................ 16-4   16.7.1   Definition of Counter-C ontact Channel Number s: ......................................................... 16-4   16.8   Read Timer Presen t Value (P.V.) ......................................................................................... 16-5   16.9   Read Timer Set Value (S.V.)................................................................................................. 16-5   16.10   Read Counter Presen t Value (P.V.)................................................................................. 16-5   16.11   Read Counter Se t Value (S.V.) ........................................................................................ 16-6   16.12   Read Variable - In tegers (A to Z)..................................................................................... 16-6   16.13   Read Variable - St rings (A$ to Z$) .................................................................................. 16-6   16.14   Read Variable - Data Memo ry (DM[1] to DM[ 4000])....................................................... 16-7   16.15   Read Variable - Sy stem Vari ables .................................................................................. 16-7   16.16   Read Variable - High Sp eed Counter HSCPV[ ]............................................................. 16-8   16.17   Write I nputs................................................................................................................... .... 16-8   16.18   Write Ou tputs.................................................................................................................. .. 16-9   16.19   Write Re lays ................................................................................................................... ... 16-9   16.20   Write Timer- contact s........................................................................................................ 16-9   16.21   Write Counter -contact s ................................................................................................... 16-9   16.22   Write Timer Presen t Value (P.V.) .................................................................................. 16-10   16.23   Write Timer Set Value (S.V.) .......................................................................................... 16-10   16.24   Write Counter Presen t Value (P.V.) .............................................................................. 16-10   16.25   Write Counter Se t Value (S.V.) ...................................................................................... 16-11   16.26   Write Variable - In tegers (A to Z) .................................................................................. 16-11   16.27   Write Variable - St rings (A$ to Z$) ................................................................................ 16-11   16.28   Write Variable - Data Memo ry (DM[1] to DM[ 4000]) .................................................... 16-12   16.29   Write Variable - Sy stem Vari ables ................................................................................ 16-12   16.30   Write Variable - High Sp eed Counter HSCPV[ ] .......................................................... 16-13   16.31   Halting th e PLC............................................................................................................... 16-13   16.32   Resume PLC Operation ................................................................................................. 16-13  

7. USER MANUAL Page vi 8.2   Applicat ions ................................................................................................................... ......... 8-2   8.2.1   Measuring RPM Of A Motor ................................................................................................. 8-2   8.2.2   Measuring Transducer with VCO Outputs ........................................................................... 8-2   8.2.3   Measuring Transducer with PWM Outputs .......................................................................... 8-2   8.3   Frequency Measurement on Hi gh Speed Count er Inputs .................................................. 8-3   9   INTERRUPTS 9-1   9.1   Input Inte rrupts ............................................................................................................... ........ 9-1   9.2   Periodic Timer Inte rrupt (PTI) ............................................................................................. 9-2   9.3   Power Failure In terrupt (PFI) ................................................................................................. 9-3   10   STEPPER MOTOR CONTROL 10-1   10.1   Technical Speci fications: .................................................................................................... 10-1   10.2   Nano-10 As Stepper Motor Cont roller ................................................................................ 10-1   10.2.1   Interfacing to 5V Stepper Motor Driv er Inputs ............................................................... 10-2   10.3   Programming Stepper Control Ch annel............................................................................. 10-3   10.3.1   Introduc tion ................................................................................................................... . 10-3   10.3.2   Setting the Accele ration Pr operti es ............................................................................... 10-3   10.3.3   Using the STEPM OVE Co mmand ................................................................................. 10-4   10.3.4   Using the STEPM OVEABS Co mmand .......................................................................... 10-4   Example: ....................................................................................................................... .............. 10-5   10.3.5   Demo Program for St epper Motor Contro l..................................................................... 10-5   11   PULSE WIDTH MODULATED OUTPUTS 11-1   11.1   Introduc tion ................................................................................................................... ........ 11-1   11.2   Nano-10 PLC PW M Outputs................................................................................................. 11-1   11.3   Increasing Output Drive Curre nt (Opto- Isolated) ........................................................... 11-2   11.4   Position Control Of RC Servo Motor .................................................................................. 11-3   11.4.1   Using Nano-10 PWM Output To C ontrol RC Servo (Non-Isol ated)............................... 11-4   11.4.2   Using Nano-10 PWM Output To C ontrol RC Servo (O pto-Isol ated) ............................. 11-5   11.4.3   RC Servo Positioni ng Resolu tion................................................................................... 11-5   12   REAL TIME CLOCK 12-1   12.1   Introduc tion ................................................................................................................... ........ 12-1   12.2   TBASIC variables Used for Real Ti me Clock ..................................................................... 12-1   12.3   RTC Error Status On Ladde r Logic..................................................................................... 12-1   12.4   Setting the RTC Using TRiLOGI So ftware.......................................................................... 12-2   12.5   Setting the RTC from In ternet Time Server........................................................................ 12-3   12.6   Setting up an Alarm Event in TBASIC ................................................................................ 12-3   12.7   Retrieving RTC Clock valu es using STAT US (18) ............................................................. 12-3   12.8   RTC Calibration (For FRAMRT C only) ................................................................................ 12-4   12.9   Control of RT C Hard ware..................................................................................................... 12-5   12.10   Troubleshooting th e FRAM RTC...................................................................................... 12-5  

4. USER MANUAL Page iii TABLE OF CONTENTS Page # 1   INSTALLATION GUIDE FOR NANO-10 PLC 1-1   1.1   Overview ....................................................................................................................... ........... 1-1   1.2   Physical Mount ing & Wi ring .................................................................................................. 1-2   1.2.1   Digital Inputs, Analog Input and RS485 Communica tion Ports ........................................... 1-3   1.2.2   Power Supply and Digita l Output Ports................................................................................ 1-4   1.3   Power Supply ................................................................................................................... ....... 1-4   1.4   Digital Input Circ uits......................................................................................................... ...... 1-5   1.5   Digital Output Circ uits........................................................................................................ .... 1-6   1.5.1   Electrical Spec ificati ons:..................................................................................................... .. 1-6   1.5.2   Digital Output Wiring Di agram.............................................................................................. 1-7   1.5.3   Inductive Load ................................................................................................................. ..... 1-7   1.6   Program and Da ta Memory .................................................................................................... 1-8   1.6.1   Program Memo ry................................................................................................................. . 1-8   1.6.2   Non-Volatile Data St orage.................................................................................................... 1-9   1.6.3   RAM Data Memo ry............................................................................................................. 1-11   1.7   Jumpers J1 & J4 ................................................................................................................ ... 1-11   1.7.1   Usefulness of Jumper J4.................................................................................................... 1-11   1.8   Real Time Clock ................................................................................................................ .... 1-13   1.9   CPU Status Indicat ors .......................................................................................................... 1-13   2   ETHERNET PORT 2-1   2.1   Configuring The Ethernet Port .............................................................................................. 2-1   2.1.1   IP Address ..................................................................................................................... ....... 2-3   2.1.2   GateWay IP Addr ................................................................................................................ . 2-3   2.1.3   SMTP Server IP Addr ess ..................................................................................................... 2-3   2.1.4   DNS Server IP Addr ess........................................................................................................ 2-4   2.1.5   No. of Connections (F Server/ M odbus TC P) ....................................................................... 2-5   2.1.6   FServer Po rt No. ............................................................................................................... ... 2-5   2.1.7   Modbus/TCP Secondar y Port No......................................................................................... 2-5   2.1.8   LAN S peed ...................................................................................................................... ..... 2-6   2.1.9   Node Na me ...................................................................................................................... .... 2-6   2.1.10   Username and Password (FServer only)......................................................................... 2-6   2.1.11   Use Username/Passw ord (Yes /No)?............................................................................... 2-6   2.1.12   Access Level ................................................................................................................... . 2-6   2.1.13   Advanced Conf iguration................................................................................................... 2-6   2.1.14   Standalone Version of Ethernet Configurati on Software ................................................. 2-6   2.2   Connecting Ethernet to the PLC ........................................................................................... 2-8   2.2.1   Connecting the PLC to a Local Area Networ k ..................................................................... 2-8   2.2.2   Setting up Ethernet Communication Dire ctly Between a PC and an FM D PLC ................ 2-10   2.3   On-line Monitoring/Progr amming via FServer................................................................... 2-16   2.4   Using Fserver “Netwo rk Services” Commands ............................................................. 2-17   2.4.1   Get Our Local IP Address .................................................................................................. 2-18   2.4.2   DNS command: Resolving Domain Name into IP Address ............................................... 2-18  

10. USER MANUAL Page ix 16.33   Read Anal og Input.......................................................................................................... 16-13   16.34   Read EEPROM In teger Data .......................................................................................... 16-14   16.35   Read EEPROM String Data (r47 Firmware Only) ......................................................... 16-14   16.36   Write Anal og Out put ...................................................................................................... 16-15   16.37   Write EEPROM In teger Data .......................................................................................... 16-15   16.38   WRITE EEPROM String Data ......................................................................................... 16-16   16.39   Force Set/Clear Si ngle I/O Bit........................................................................................ 16-16   16.40   Using OMRON Host Link Commands .......................................................................... 16-17   16.40.1   Read IR R egister s........................................................................................................ 16-17   16.40.2   WRITE IR R egisters..................................................................................................... 16-18   16.40.3   Read Data Memory DM[1] to DM[ 4000] ...................................................................... 16-18   16.40.4   WRITE Data Memory DM[1] to DM[ 4000] ................................................................... 16-19   16.41   Testing of Host Link Commands .................................................................................. 16-20   16.42   Visual Basic Sa mple Program....................................................................................... 16-21   16.43   Inter-PLC Networking Us ing NETCMD $ Command .................................................... 16-21   16.44   Inter PLC Networking Us ing MODBUS Pr otocols....................................................... 16-21   17   I 2 C COMMUNICATION 17-1   17.1   The I2C-FRTC Module .......................................................................................................... 17-1   17.1.1   Installing the I2 C-FRTC Module .................................................................................... 17-1   17.1.2   I2C-FRTC Hardwa re Over view ...................................................................................... 17-2   17.1.3   I2C-FRTC Av ailab ility..................................................................................................... 17-2   17.2   New TBASIC Commands: I2C_READ, I2C_WRITE a nd I2C_ STOP.................................. 17-2   17.2.1   I2C_WR ITE .................................................................................................................... 17-3   17.2.2   I2C_READ...................................................................................................................... 17-4   17.2.3   I2C_ST OP...................................................................................................................... 17-6   17.2.4   Random Write To M24M01 EEPROM ........................................................................... 17-6   17.2.5   Page Write To M24M01 EEPROM ................................................................................ 17-6   17.2.6   Random Read From M24M01 EEPROM....................................................................... 17-7   17.2.7   Sequential Read From M24M01 EEPROM ................................................................... 17-8   18   EXTENDED FILE SYSTEM 18-2   18.1   Introduc tion ................................................................................................................... ........ 18-2   18.2   File Structure and File Naming of The Extended File System ......................................... 18-3   18.3   Transferring Files To The PLC’s We b Server .................................................................... 18-4   18.4   Accessing The Extended Data Files Usi ng TBASIC ......................................................... 18-4   18.4.1   Open A File For Writing Ne w Data ................................................................................ 18-4   18.5   Open A File For Appending Da ta To The End Of The File................................................ 18-5   18.5.1   Delete A File.................................................................................................................. . 18-5   18.5.2   Open A File For R eading ............................................................................................... 18-5   18.6   Setting Up The File Zilla FTP Server.................................................................................... 18-7   18.6.1   Download and Set up FTP Se rver .................................................................................. 18-7   18.6.2   Testing Connection To The FTP Server Us ing Te lnet................................................... 18-9   18.7   Uploading File From PLC to F ileZilla FTP Serv er Dir ectory........................................... 18-12   18.7.1   Overview of T he FTP Pr otocol..................................................................................... 18-12  

6. USER MANUAL Page v 4.2   Programming timers and counters on La dder Logic.......................................................... 4-2   4.2.1   For Ti mers ..................................................................................................................... ....... 4-2   4.2.2   For Count ers ................................................................................................................... ..... 4-2   4.2.3   Example 1 – Creating a Simple Timer Circuit in Ladder Logic ............................................ 4-2   4.2.4   Example 2 – Creating a Simple Counter Circuit in Ladder Logic......................................... 4-3   4.3   Programming timers and count ers in Cust om Function.................................................... 4-4   4.3.1   Programming Timers and C ounters Present Values ........................................................... 4-4   4.3.2   Accessing Inputs, Outputs, Relays , Timers and Count ers Cont acts ................................... 4-4   4.3.3   Changing The Timer and Counter Set Va lues in a Cust om Func tion.................................. 4-4   4.3.4   Volatility of Nano-10 Time r & Counter Set Values ............................................................... 4-4   4.3.5   Controlling a Timer or Counter in a Custom Function.......................................................... 4-5   4.4   Programming Sequencer s on Ladde r Logic........................................................................ 4-5   4.4.1   Introduc tion................................................................................................................... ........ 4-5   4.4.2   Advance Sequencer - [AVseq] ............................................................................................. 4-6   4.4.3   Resetting Sequencer - [R Sseq]............................................................................................ 4-6   4.4.4   Setting Sequencer to Step N - [S tepN] ................................................................................ 4-6   4.4.5   Reversing a Sequenc er........................................................................................................ 4-7   4.4.6   Program Ex ample................................................................................................................ . 4-7   4.5   Programming Sequencers in Custom Function.................................................................. 4-7   5   ANALOG INPUTS 5-1   5.1   Analog Powe r Supply............................................................................................................ . 5-1   5.2   Analog I nputs.................................................................................................................. ........ 5-1   5.2.1   Interfacing to two-wi re 4-20mA sensors............................................................................... 5-2   5.2.2   Using Potentiometer to Set Pa ramete rs............................................................................... 5-3   5.2.3   Reading Analog Input Data .................................................................................................. 5-3   5.2.4   Moving Av erage ................................................................................................................. .. 5-4   5.2.5   Scaling of Analog Data......................................................................................................... 5-4   5.3   Temperature Measurement Using Anal og Inputs ............................................................... 5-5   5.3.1   Thermistor Temper ature S ensors ........................................................................................ 5-5   5.3.2   Using LM34 Semic onductor S ensor..................................................................................... 5-6   5.3.3   Using Ther mocoupl e ............................................................................................................ 5-7   5.3.4   Using PT100 Temper ature S ensor ...................................................................................... 5-7   5.4   Calibration of ADC & Movi ng Average De finition ............................................................... 5-7   5.4.1   ADC Ca lib...................................................................................................................... ....... 5-8   5.4.2   ADC Zero Offset................................................................................................................ ... 5-9   5.4.3   A/D Movi ng Avg................................................................................................................. ... 5-9   6   SPECIAL DIGITAL I/OS 6-1   7   HIGH SPEED COUNTERS 7-1   7.1   Introduc tion ................................................................................................................... .......... 7-1   7.2   Enhanced Quadra ture D ecoding........................................................................................... 7-2   7.3   Configuring HSC as x1, x2 or x4 Counter s .......................................................................... 7-2   7.4   Interfacing to 5V type Quadrature Encoder ......................................................................... 7-3   1.1.1.1   Nano-10 PL C .................................................................................................................. 1   8   FREQUENCY / SPEED MEASUREMENT 8-1   8.1   Programming of PM Input...................................................................................................... 8-1  

8. USER MANUAL Page vii 13   LCD DISPLAY PROGRAMMING 13-1   13.1   SETLCD Co mmand............................................................................................................... 13-1   13.2   Special Commands For LCD Di splay ................................................................................. 13-1   13.3   Displaying Numeric Variable With Multip le Digits ............................................................ 13-2   13.4   Displaying Deci mal Point..................................................................................................... 13-3   14   SERIAL COMMUNICATIONS 14-1   14.1   Introduc tion:.................................................................................................................. ........ 14-1   14.2   COMM1: Two-wi re RS485 Port ......................................................................................... 14-1   14.2.1   PROGRAMMING A ND MONITO RING.......................................................................... 14-1   14.2.2   Accessing 3 rd Party RS485-bas ed Devi ces ................................................................... 14-2   14.2.3   Interfacing Other Devices to Modbus /TCP Host or to the In ternet ................................ 14-2   14.2.4   Distributed Contro l ......................................................................................................... 14-2   14.3   Changing Baud Rate and Communication Formats: Use of the SETBAUD Statement 14-2   14.4   Support of Multiple Co mmunication Pr otocols................................................................. 14-4   14.5   Accessing the COMM Port fr om within TBASIC ............................................................... 14-5   14.6   Using The PLC As a Modbus / Omron Slav e – SCADA, HMI Applications............. 14-7   14.6.1   MODBUS ASCII Prot ocol S upport ................................................................................. 14-7   14.6.1.1   BIT ADDRESS MAPPING FROM A MODICON / MODBUS DEVICE ...................... 14-9   14.6.1.2   WORD ADDRESS MAPPING ................................................................................. 14-10   14.6.2   MODBUS RTU Prot ocol S upport ................................................................................. 14-10   14.6.3   OMRON Host Link Command Support ..................................................................... 14-11   14.6.4   Application Example: Interf acing to SCAD A Software................................................. 14-11   14.7   Using The PLC As a Modbus Master – Getting Data From Power or Flow Meters ....... 14-13   14.7.1   Nano-10 PLC As MO DBUS RTU Master .................................................................. 14-13   15   HOST LINK PROTOCOL INTRODUCTION 15-1   15.1   Multiple Communicat ion Prot ocols .................................................................................... 15-1   15.2   Native Mode Communi cation Prot ocols............................................................................. 15-1   15.3   Point-To-Point Comm unication Format ............................................................................. 15-1   15.3.1   Command/Response Frame Form at (Point to Point) .................................................... 15-2   15.3.2   Error Respons e Format ................................................................................................. 15-2   15.4   MULTI-POINT COMM UNICATION SYSTEM ........................................................................ 15-3   15.4.1   Command/Response Frame Fo rmat (Multi -point) ......................................................... 15-3   15.4.2   Calculation of FCS ......................................................................................................... 15-4   15.4.3   Communication Procedur e ............................................................................................ 15-4   15.4.4   Framing Erro rs ............................................................................................................... 15-5   15.4.5   Command E rrors ............................................................................................................ 15-5   15.4.6   SHOULD YOU USE POINT-TO-POINT OR MULTI-POIN T PROTOCOL? .................. 15-5   15.5   RS485 Pr imer ................................................................................................................... ..... 15-6   15.5.1   RS485 Network Inte rface Ha rdwa re .............................................................................. 15-6   15.5.2   Protection of RS 485 Interf ace........................................................................................ 15-6   15.5.3   Single Master RS485 Ne tworking F undamental s.......................................................... 15-7   15.5.4   Multi-Master (Peer-to-Peer) RS485 Networking Fundament als.................................... 15-8   15.5.4.1   Multiple Access with Collision Detection ................................................................... 15-8   15.5.4.2   Token Awardi ng Scheme .......................................................................................... 15-9   15.5.4.3   Rotating Mast er Signal .............................................................................................. 15-9  

5. USER MANUAL Page iv 2.4.3   Send Em ail ..................................................................................................................... .... 2-19   2.4.4   Open Connection to Remote FServer or TLServer to Use NE TCMD$.............................. 2-20   2.4.5   Remote File Services ......................................................................................................... 2-21   2.4.6   Other Network Se rvices Tags ............................................................................................ 2-21   2.5   MODBUS/TCP Server and Client C onnectio n.................................................................... 2-22   2.5.1   Connecting To The PLC’s MODBUS/TCP Server ............................................................. 2-22   2.5.1.1   Bit Address Mapping ................................................................................................. 2-22   2.5.1.2   Word Address Mapping ............................................................................................. 2-24   2.5.2   MODBUS/TCP A ccess Security......................................................................................... 2-24   2.5.3   Making A Modbus/TCP Client Connecti on to Other Modbus /TCP Server......................... 2-25   2.6   Getting data from Internet: Connecti ng to The Internet Time Server ............................. 2-27   2.7   Web Service: Accessing PLC' s data from MS Excel ........................................................ 2-28   2.8   Accessing The PLC fr om Internet....................................................................................... 2-30   2.8.1   Small Local Area Network Using Consumer Grade Ne twork R outer ................................ 2-30   2.8.2   Large Corporate Local Area Ne twork ................................................................................ 2-31   2.9   Setting up Ethernet Communication Directly Between a PC and Nano-10 PLC Error! Bookmark not defined . 2.10   Installing a Web Page or Web Applet into the Nano-10 PL C using FileZilla .................. 2-32   2.10.1   Installing the F ileZilla progr am ....................................................................................... 2-32   2.10.2   Configuring FileZilla to Co mmunicate with the N ano-10 ............................................... 2-32   2.10.3   Transferring and Retrieving Files from the Nano- 10 Web Se rver ................................. 2-34   2.10.4   Download the W eb Page F iles ...................................................................................... 2-35   2.10.5   Troubleshooting FileZilla F ile Transfer Problems .......................................................... 2-35   2.11   Accessing and Customizing the HTML Web Interface for Control and Monitoring ...... 2-38   2.11.1   Accessing the HTML Files from a Standar d Brow ser.................................................... 2-38   2.11.2   Control and Monitoring Components in the Default HTML Files ................................... 2-39   2.11.3   Customizing the HTML Files.......................................................................................... 2-40   2.11.4   Level 2 User Modifications............................................................................................. 2-44   3   DIGITAL I/O AND INTERNAL RELAYS PROGRAMMING 3-1   3.1   Introduc tion ................................................................................................................... .......... 3-1   3.2   Programming DIO wi th Ladde r Logic ................................................................................... 3-1   3.2.1   For Physic al I/O ............................................................................................................... ..... 3-1   3.2.2   For Internal Rela ys (Non-Lat ching) ...................................................................................... 3-1   3.2.3   For Internal Rela ys (Latching).............................................................................................. 3-1   3.2.4   Programming Ex amples: ...................................................................................................... 3-2   3.2.4.1   Example 1 – Edit ing Label Names .............................................................................. 3-2   3.2.4.2   Example 2 – Creating a Si mple Ladder Logi c Circ uit.................................................. 3-2   3.2.4.3   Example 3 – Creating a Lat ching Relay Circuit........................................................... 3-2   3.3   Programming DIO in a Custom Function ............................................................................. 3-3   3.3.1   Editing Label Name s: ........................................................................................................... 3-3   3.3.2   Controlling I/O from Custom F unctions: ............................................................................... 3-3   3.3.3   Example 1 – Turn on/off an Output ...................................................................................... 3-4   3.3.4   Example 2 – T oggle an Ou tput ............................................................................................ 3-5   3.3.5   Example 3 – Test the Status of an Out put ........................................................................... 3-5   4   TIMERS, COUNTERS AND SEQUENCERS 4-1   4.1   Introduc tion ................................................................................................................... .......... 4-1   4.1.1   Timer Coils .................................................................................................................... ....... 4-1   4.1.2   Counter Coils.................................................................................................................. ...... 4-1   4.1.3   Sequencer s ..................................................................................................................... ..... 4-1  

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