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MVI69-MCM

1. performed Controller Tags MVI69MCM controller 5 x Scope MVIESMCM contralk X Show Show All Sort Tag Name Force Mask De Local 1 C eae 4B 1769_MODULE C 0 F Local 1 1 A ee AB 1769_MODULE_INT_488 Local 1 0 EN Gost 4B 1769_MODULE_INT_462 MBOffset 100 Decimal INT MbO ffsetbit 320 Decimal INT MBPassThruScratch Tarat Decimal INT 3 MCM1 ace esa MCM1ModuleD ef n wWordLength 10 Decimal INT Monitor Tags Edit Tags rly At this point take the time to fill in the configuration values in the MCM data table and adjust array sizes Refer to the Module Data Object section of this document for information on configuring the module The last step is to add the ladder logic If you are using the example ladder logic adjust the ladder to fit your application If you are not using the ladder example copy the ladder logic shown in the Controller Organization list below to your application m J Controller MVI6GIMCM A EMES Controller Fault Handler Power Up Handler amp Tasks MainTask 5 MainProgram A Program Tags EA MainRoutine B ReadData B WriteData Unscheduled Programs Motion Groups C Ungrouped Axes Trends Data Types Ca User Defined Ci Strings Ch Predefined C Module Defined I O Configuration 1 1769 L35 Ethernet Port LocalENB 8 CompactBus Local g 1 1769 MODULE MY169 m D an
2. 2 Press R Receive Module Configuration The message Press Y key to confirm configuration receive is displayed at the bottom of the screen eHyperTeeminat Ee Em Mew CH Inde te Dw 3 oa g MODULE MENU Display Menu A Data Analyzer B Block Transfer Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Configuration V Version Information W Ware Boot Module Esc Exit Progran Press Y key to confirm configuration receive Connected 0 00 07 fata detect STOO M I Mm Page 50 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module 3 Press Y The screen now indicates that the PC is ready to send HyperTerminal MODULE HENU Display Menu A Data Analyzer B Block Transfer Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Configuration V Version Information Ware Boot Module Esc Exit Progran Press Y key to confirm configuration receive Receiving configuration file TRANSFERRING CONFIGURATION FROM PC TO ProSoft NODULE Using the Ymodem file transfer protocol Select the SEND menu option and transfer the configuration file c Cornscted 0 00 07 4 From the Transfer menu in HyperTerminal select Send File Hyper Terminai Displa _ Suen rer A Data Analyzer B Block Transfer
3. O O O O O OOOO 00 09 00 00 00 09 02 03 8 52 _TT_TT_ lt R gt lt 01 gt lt 04 gt lt 00 gt lt 00 gt lt 00 gt lt QA gt lt 70 gt lt 0D gt lt R gt _TT_TT_ 01 0 0OOI 011 00 _TT_ 02 00 03 00 04 00 05 00 06 00 07 00 0 ae TT__TT_ lt R gt lt 1 gt lt 82 gt lt 00 gt lt O0 gt lt O0 gt lt OA gt lt F8 gt lt OD gt lt R gt _TT__TT__TT_I 00 B7 e 00 B9I B8 _TT__TT_ lt R gt lt 1 gt lt 3 gt lt 0 gt lt 00 gt lt 00 gt lt OA gt lt C5 gt lt CD gt lt R gt _TT_TT__ ose The lt R gt means that the module is transitioning the communications line to a transmit state All characters shown in lt gt brackets are characters being sent out by the module The lt R gt shows when the module is done transmitting data and is now ready to receive information back And finally all characters shown in the brackets is information being received from another device by the module After taking a minute or two of traffic capture you will now want to stop the Data Analyzer To do so press the S key and you will then see the scrolling of the data stop When you have captured the data you want to save open the Transfer menu and choose Capture Text On the secondary menu choose Stop final Transfer Help Send File Receive File Capture Text Send Text File Pause ProSoft Technology Inc Page 71 of 121 May 22 2007 M
4. m D amp E Page 28 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform 2 2 Modbus Communication Module The module is now set up and ready to use with your application Insert the module in the rack and attach the MODBUS serial communication cables Download the new application to the controller and place the processor in run mode If all the configuration parameters are set correctly and the module is attached to a MODBUS network the module s Application LED APP LED should remain on and the backplane activity LED BP ACT should blink very rapidly If you encounter errors refer to Diagnostics and Troubleshooting page 55 for information on how to connect to the module s Config Debug port to use its troubleshooting features Installing and Configuring the Module with a MicroLogix Processor If you are installing and configuring the module with a MicroLogix processor follow these steps If you are using a CompactLogix processor refer to the previous section This chapter describes how to install and configure the module to work with your application The configuration process consists of the following steps 1 Use RSLogix to identify the module to the processor and add the module to a project NOTE The RSLogix software must be in offline mode to add the module to a project 2 Modify the module s configuration files to meet the nee
5. 1675 Chester Avenue Fourth Floor Bakersfield CA 93301 Before calling for support please prepare yourself for the call In order to provide the best and quickest support possible we will most likely ask for the following information 1 Product Version Number 2 System architecture 3 Module configuration and contents of configuration file if the module requires one 4 Module Operation o Configuration Debug status information o LED patterns 5 Information about the processor and user data files as viewed through the processor configuration software and LED patterns on the processor 6 Details about the serial devices interfaced An after hours answering system allows pager access to one of our qualified technical and or application support engineers at any time to answer the questions that are important to you Module Service and Repair The MVI69 MCM device is an electronic product designed and manufactured to function under somewhat adverse conditions As with any product through age misapplication or any one of many possible problems the device may require repair When purchased from ProSoft Technology Inc the device has a 1 year parts and labor warranty 3 years for RadioLinx according to the limits specified in the warranty Replacement and or returns should be directed to the distributor from whom the product was purchased If you must return the device for repair obtain an RMA Returned Material Authorization number from
6. Page 102 of 121 ProSoft Technology Inc May 22 2007 Reference 5 4 5 5 MCM Database Definition This section contains a listing of the internal database of the MVI69 MCM module This information can be used to interface other devices to the data contained in the module MVI69 MCM CompactLogix Platform Modbus Communication Module Register Range Content Size 0 4999 User Data 5000 5000 5009 Backplane Configuration 10 5010 5039 Port 1 Setup 30 5040 5069 Port 2 Setup 30 5070 5869 Port 1 Commands 800 5870 6669 Port 2 Commands 800 6670 6702 Misc Status Data 32 6703 6749 Reserved 6750 6759 Port 1 Status Data 10 6760 6769 Port 2 Status Data 10 The User Data area holds data collected from other nodes on the network master read commands or data received from the processor write blocks Additionally this data area is used as a data source for the processor read blocks or other nodes on the network write commands Detailed definition of the miscellaneous status data area can be found in Misc Status page 111 Definition of the configuration data areas can be found in the data definition section of this document and in Configuration Data Definition page 105 Status Data Definition This section contains a description of the members present in the MCMStatus object This data is transferred from the module to the processor as part of each read block Status Data
7. DB Poll Reg Swap Slave Func Address Addr Delay Count Code Addr Code In Dev 3700 0O 2 0 1 3 6100 Modbus Slave 000 000 46101 37 25 46102 275 69 The user needs to know what area in the Slave s database has been defined for holding Floating values In this example the Slave s Float Start was set at 46001 Internal DB Float Flag Not applicable with Modbus Function Code 3 Float Start Not applicable with Modbus Function Code 3 DB Addr Tells the Master where in its data memory to store the data obtained from the Slave Reg Count Tells the Master how many registers to request from the Slave Swap Code same as above Func Code Tells the Master to read the register values from the Slave FC3 Addr in Dev Tells the Master where in the Slave s database to obtain the data ProSoft Technology Inc Page 41 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module In the above example the Master s Modbus command to transmit inside the Modbus packet will be as follows Slave Function Address in Reg count address Code Device DEC 01 3 6100 2 HEX 01 03 17 D4 00 02 In the above example the Enron Daniel supporting Slave s Modbus command to transmit inside the Modbus packet will be as follows Slave Function Byte Data address Code Count DEC 01 3 8 32 75 275 69 HEX 01 03 08 00 00 42 03 D8 52 43 89 In the above example
8. H A ae 01081817979 QQ 38409206 a 13801020197 MSN xc comml 3 com MVI69 MCM CompactLogix Platform Modbus Communication Module User Manual May 22 2007 TECHNOLOGY He 010 81817979 QO 58409206 H 13801020197 Please Read This Notice MSN xc comil63 com Successful application of this module requires a reasonable working knowledge of the Rockwell Automation CompactLogix or MicroLogix hardware the MVI69 MCM Module and the application in which the combination is to be used For this reason it is important that those responsible for implementation satisfy themselves that the combination will meet the needs of the application without exposing personnel or equipment to unsafe or inappropriate working conditions This manual is provided to assist the user Every attempt has been made to assure that the information provided is accurate and a true reflection of the product s installation requirements In order to assure a complete understanding of the operation of the product the user should read all applicable Rockwell Automation documentation on the operation of the Rockwell Automation hardware Under no conditions will ProSoft Technology be responsible or liable for indirect or consequential damages resulting from the use or application of the product Reproduction of the contents of this manual in whole or in part without written permission from ProSoft Technology is prohibited Information in this manual is s
9. Hyper Terminai Display Menu A Data Analyzer B Block Transfer Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Configuration V Version Information W Horm Boot Module Esc Exit Program Press Y key to confirm configuration send Sending configuration file TRANSFERRING CONFIGURATION FILES FROM ProSoft MODULE TO PC The Yaodem protocol is used to send the file from the module Select the RECEIVE menu option and destination directory Building configuration file image from module Ready to Send Cormected 0 00 07 feta detect STOO SME une 4 From the Transfer menu in HyperTerminal select Receive File This action opens the Receive File dialog box Hyper Terminal Capture to Printer Data f_Sseeens _ Block Transfer Statistics Module Configuration D Database View R Receive Module Configuration Send Module Configuration V Version Information H Horm Boot Module EsceExit Program Press key to confirm configuration send Sending configuration file TRANSFERRING CONFIGURATION FILES FROM ProSoft MODULE TO PC The Ymodem protocol is used to send the file from the module Select the RECEIVE menu option and destination directory Building configuration file image from module Ready to Sendt Cormected 0 00 07 foto detect STUDO BML m 5 Use the Browse button to choose a folder on your computer to save the file and then
10. Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module On the General page fill in the values shown in the tables below according to the Block Transfer Size parameter in the configuration file You must select the Comm Format as Data INT The configured Input Size and Output Size will depend on the block transfer size parameter defined in the configuration file Use the values in the table corresponding with the block transfer size you configured Block Transfer Size 60 Field Recommended Value Type 1769 MODULE Generic 1769 Module Parent Local Name MVI69 Description MVI69 Application Module Comm Format Data INT Slot The slot number in the rack where the module is installed Input Assembly 101 Instance Input Size 62 Output Assembly 100 Instance Output Size 61 Configuration 102 Assembly Instance Configuration Size 0 Block Transfer Size 120 Field Recommended Value Type 1769 MODULE Generic 1769 Module Parent Local Name MVI69 Description MVI69 Application Module Comm Format Data INT Slot The slot number in the rack where the module is installed Input Assembly 101 Instance Input Size 122 Output Assembly 100 Instance Output Size 121 Configuration 102 Assembly Instance Configuration Size 0 ProSoft Technology Inc May 22 2007 Page 23 of 121 MVI69 MCM Compact
11. lt 1 gt lt 03 gt lt 80 gt lt 80 gt lt 80 gt lt BA gt lt C5 gt lt CD gt lt R gt _TT__TT_ 011 03 021 001 031 001 041 001 051 601 061 601 671 001 88 lt 01 gt lt 01 gt lt 00 gt lt 00 gt lt 00 gt lt AA gt lt 3C gt lt 72 gt lt R gt _TT_TT_ 011 01 00 03 00 04 0Q 05 00 06 00 07 00 08 00 lt 01 gt lt 04 gt lt 80 gt lt 80 gt lt 00 gt lt BA gt lt 70 gt lt OD gt lt R gt _TT__TT_ 011 041 1 021 081 031 001 041 601 05 601 061 601 671 801 881I8 lt 01 gt lt 82 gt lt 88 gt lt 80 gt lt 00 gt lt BA gt lt F8 gt lt 8D gt lt R gt _TT__TT__TT_ 011 02 _TT_ lt R gt lt 1 gt lt 03 gt lt 80 gt lt 00 gt lt B80 gt lt OA gt lt C5 gt lt CD gt lt R gt _TT__TT_ 01 061_TT_ 021 001 031 001 041 001 051 601 061 901 671 001 8 _TT_ lt R gt lt 61 gt lt 01 gt lt 80 gt lt OB gt lt BB gt lt AB gt lt 30 gt lt 72 gt lt R gt _TT__TT__TT_I 1 081 02 _TT_ 00 031 001 041 001 05 601 061 001 671 001 88 _TT__TT_ lt R gt lt 1 gt lt 4 gt lt 0 gt lt 0 gt lt 80 gt lt A gt lt 70 gt lt OD gt lt R gt _TT__TT_I 1 I 01 00 _TT_ 02 00 03 00 04 00 05 00 06 00 07 00 _ITT_TT_ lt R gt lt 01 gt lt 02 gt lt 00 gt lt 00 gt lt 00 gt lt 0A gt lt F8 gt lt 0D gt lt R gt _TT_TT_IO1 I B8 _TT__TT_ lt R gt lt 1 gt lt 3 gt lt 0 gt lt 80 gt lt 80 gt lt BA gt lt C5 gt lt CD gt lt R gt _TT__TT_I 00 01 00 _TT_ 02 00 03 00 04 00 09 100 06 1 001 07 7 oS
12. 4999 3000 words of configuration Status and status data and Config 7999 Page 80 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Data contained in this database is paged through the input and output images by coordination of the CompactLogix or MicroLogix ladder logic and the MVI69 MCM module s program Up to 242 words of data can be transferred from the module to the processor at a time Up to 241 words of data can be transferred from the processor to the module The read and write block identification codes in each data block determine the function to be performed or the content of the data block The block identification codes used by the module are listed below Block Range Descriptions 1 Status Block 0 Status Block 1 to 84 Read or write data 1000 Event Port 1 2000 Event Port 2 3000 to 3001 Port 1 slave polling control 3002 to 3006 Port 1 slave status 3100 to 3101 Port 2 slave polling control 3102 to 3106 Port 2 slave status 5000 to 5006 Port 1 command control 5100 to 5106 Port 2 command control 9958 Function Code 5 data formatted Pass Thru Control Blocks 9956 and 9957 Function Code 6 and 16 Floating point data formatted Pass Thru Control Block 9959 Function Code 15 data formatted Pass Thru Control Block 9998 Warm boot control block 9999 Cold boot control block Each image has a d
13. 62 Page 120 of 121 ProSoft Technology Inc May 22 2007 Index Ivivioy IviuM CompactLogix Platform Modbus Communication Module Viewing the Previous 20 Commands 65 Viewing the Previous Page of Commands 65 Viewing Version Information 59 63 64 66 W Warm Boot 93 Warm Booting the Module 60 Write Block 84 Write Block Command Control 90 Write Block Disable Slaves 88 Write Block Enable Slaves 88 Write Block Event Command 89 Write Block Request Slave Status 87 Y Your Feedback Please 2 amp ae 01081817979 QO 38409206 a 13801020197 MSR xc comml 3 com ProSoft Technology Inc May 22 2007
14. Errors on the port These errors could be due to a bad response or command 21 Port 2 Requests This field contains the total number of messages sent out the port 22 Port 2 Responses This field contains the total number of messages received on the port 23 Port 2 Errors Sent This field contains the total number of message errors sent out of the port 24 Port 2 Errors This field contains the total number of message errors Received received on the port 25 Read Block Count This field contains the total number of read blocks transferred from the module to the processor 26 Write Block Count This field contains the total number of write blocks transferred from the processor to the module 27 Parse Block Count This field contains the total number of blocks successfully parsed that were received from the processor 28 Command Event This field contains the total number of command event blocks Block Count received from the processor 29 Command Block This field contains the total number of command blocks Count received from the processor 30 Error Block Count This field contains the total number of block errors recognized by the module 31 Port 1 Current Error For a slave port this field contains the value of the current error code returned For a master port this field contains the index of the currently executing command 32 Port 1 Last Error For a slave port this field contains the value of the last error code returned For a master port
15. and Tick we are now ready to start a capture of this data The easiest way to do so is to go up to the top of you HyperTerminal window and do a Transfer gt Capture Text as shown below Transfer Help Send File Receive File Capture Text Send Text File Capture to Printer After selecting the above option the following window will appear 21x Folder C ProS oft txt File C ProS oft txt i Start Cancel Page 70 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module Next name the file and select a directory to store the file in In this example we are creating a file ProSoft txt and storing this file on our root C drive After you have done this press the se button Now you have everything that shows up on the HyperTerminal screen being logged to a file called ProSoft txt This is the file that you will then be able to email to ProSoft Technical Support to assist with issues on the communications network To begin the display of the communications data you will then want to press B to tell the module to start printing the communications traffic out on the debug port of the module After you have pressed B you should see something like the following 031 001 041 001 051 601 061 001 071 001 881 801 89 lt 08 gt lt 80 gt lt 80 gt lt BA gt lt F8 gt lt OD gt lt R gt _TT__TT__TT_ 01 021 82
16. 0 is entered the data will not be stored in the database If the value specified is in the range of 0 to 4940 the data will be placed in the user data area 5006 Initialize Output Data This parameter determines if the output data for the module should be initialized with values from the processor If the parameter is set to No the output data will be initialized to 0 If the parameter is set to Yes the data will be initialized with data from the processor Use of this option requires associated ladder logic to pass the data from the processor to the module 5007 BT Size This parameter defines the size of the block transfer data area for the application Valid values are 60 120 and 240 5008 Spare 5009 Spare ProSoft Technology Inc May 22 2007 Page 105 of 121 MVI69 MCM CompactLogix Platform Modbus Communication Module 5 6 1 Port 1 Setup Reference Register Content Description 5010 Enable This parameter defines if this MODBUS port will be used If the parameter is set to 0 the port is disabled A value of 1 enables the port 5011 Type This parameter specifies if the port will emulate a MODBUS master device 0 a MODBUS slave device without pass through 1 or a MODBUS slave device with unformatted pass through 2 or a MODBUS slave device with formatted pass through and data swapping 3 5012 Float Flag This flag specifies if the fl
17. 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Register Content Description 5046 Baud Rate This is the baud rate to be used on the port Enter the baud rate as a value For example to select 19K baud enter 19200 Valid entries are 110 150 300 600 1200 2400 4800 9600 19200 28800 384 for 38400bps 576 for 57600bps and 115 for 115 200bps 5047 Parity 5048 Data Bits This is the parity code to be used for the port Values are None Odd Even This parameter sets the number of data bits for each word used by the protocol Valid entries for this field are 5 through 8 5049 Stop Bits This parameter sets the number of stop bits to be used with each data value sent Valid entries are 1 and 2 5050 RTS On This parameter sets the number of milliseconds to delay after RTS is asserted before the data will be transmitted Valid values are in the range of 0 to 65535 milliseconds 5051 RTS Off This parameter sets the number of milliseconds to delay after the last byte of data is sent before the RTS modem signal will be set low Valid values are in the range of 0 to 65535 5052 Minimum Response Time This parameter specifies the minimum number of milliseconds to delay before responding to a request message This pre send delay is applied before the RTS on time This may be required when communicating with slow
18. 422 101 RS 485 102 RS 485 and RS 422 Tip 102 S Sending the Configuration File 59 Serial Port Menu 66 Setting Jumpers 9 Skipping 500 Registers of Data 62 Slave Driver 93 Slave Polling Control and Status 35 Slave Status Blocks 86 Special Blocks 86 Standard MODBUS Protocol Errors 96 Start Here 5 7 Starting the Data Analyzer 69 Status Data Block Read Block ID 0 85 Status Data Definition 103 Status Object MCM1Status 34 Stopping the Data Analyzer 69 Support Service amp Warranty 5 115 System Requirements 7 T The Configuration Debug Menu 55 Transferring the Command Error List to the Processor 96 Transferring the Configuration File to the Module 50 Transferring the Configuration File to Your PC 47 Troubleshooting 73 U Uploading and Downloading the Configuration File 45 59 User Data Objects 34 Using the Configuration Debug Port 57 V Viewing Backplane Diagnostic Information 63 Viewing Configuration Information 63 65 Viewing Data in ASCII Text Format 62 69 Viewing Data in Decimal Format 62 Viewing Data in Floating Point Format 62 Viewing Data in Hexadecimal Format 62 69 Viewing Error and Status Data 65 Viewing Register Pages 61 Viewing the Next 100 Registers of Data 62 Viewing the Next 20 Commands 65 Viewing the Next Page of Commands 66 Viewing the Previous 100 Registers of Data
19. Back Pages Goes back five pages of data P Previous Page op Goes back one page of data Skip 5 Pages p Goes forward five pages ofdata eee 4 Si F4 N Next Page Goes forward one page ofdata IDS D Decimal Display Displays data in decimal frmat SS H Hexadecimal Display ay Displays data in hex format n S F Float Display Displays data in floating point format y A ASCII Display ay Displays data in text format LJ z e M Main Menu Goes up one level to main menu Viewing Register Pages To view sets of register pages use the keys described below Command Description 0 Display registers 0 to 99 1 Display registers 1000 to 1099 2 Display registers 2000 to 2099 And so on The total number of register pages available to view depends on your module s configuration Displaying the Current Page of Registers Again DATABASE DISPLAY TO 99 lt DECIMAL gt 100 161 16 11 12 13 14 1 Seegqoogsgggnn eeoeoeceoqoun Seeeegcgegggnn Seeooceogggn eeeegegegggg2 Seeoqoesegggqgy eeeoececggs 2 i This screen displays the current page of 100 registers in the database ProSoft Technology Inc Page 61 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Moving Back Through 5 Pages of Registers Press from the Database View menu to skip back
20. Block This field contains the total number of command blocks received from Count the processor 6698 Error Block This field contains the total number of block errors recognized by the Count module 6699 Port 1 Current Fora slave port this field contains the value of the current error code Error returned For a master port this field contains the index of the currently executing command 6700 Port 1 Last Error For a slave port this field contains the value of the last error code returned For a master port this field contains the index of the command with an error 6701 Port 2 Current Fora slave port this field contains the value of the current error code Error returned For a master port this field contains the index of the currently executing command 6702 Port 2 Last Error For a slave port this field contains the value of the last error code returned For a master port this field contains the index of the command with an error Page 104 of 121 ProSoft Technology Inc May 22 2007 Reference 5 6 Configuration Data Definition MVI69 MCM CompactLogix Platform Modbus Communication Module This section contains listings of the MVIG9 MCM module s database that are related to the module s configuration This data is defined in the MVIG9MCM CFG file which initializes the module during bootup When the module is configured as a slave this data is available to the Modbus master and can be read at the offset addresses
21. Input Words Output Words 60 62 61 120 122 121 240 242 241 5 Click Next to continue 6 After completing the module setup the I O configuration dialog box will display the module s presence The last step is to add the ladder logic If you are using the example ladder logic adjust the ladder to fit your application Refer to the example Ladder Logic section in this manual Download the new application to the controller and place the processor in run mode If you encounter errors refer to Diagnostics and Troubleshooting page 55 for information on how to connect to the module s Config Debug port to use its troubleshooting features ProSoft Technology Inc Page 31 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 2 3 Module Data Object MCMModuleDef All data related to the MVI69 MCM is stored in a user defined data type An instance of the data type is required before the module can be used This is done by declaring a variable of the data type in the Controller Tags Edit Tags dialog box The structure of the object is displayed in the following figure A Data Type MCMiModuleDef i lol x Name MCM1ModuleDef Description Members Data Type aoe 4592 ge de e o BlockTransferSize z ae ReadData o NRW Decimal WriteData _INT 20 Decimal BP MCM1Backplane ModuleStatus MCM1_STATUS BlockRequest MCM1BlockRequest ReadCl
22. OA gt lt C5 gt lt CD gt lt R gt _TT_ 01 03 14 08 06 86 86 66 TT _ 66 66 60 66 66 66 60 60 66 60 G0 G9 06 00 68 A3 67 _TT_ lt R gt lt 81 gt lt 63 gt lt 08 gt lt 88 gt lt 8O gt lt BA gt lt C5 gt lt CD gt lt R gt _TT_ 61 83 14 80 80 66 68 86 60 TT 60 66 66 60 66 66 66 60 60 66 60 00 00 00 A3 67 TT The Data Analyzer displays the following special characters Character Definition Data enclosed in these characters represent data received on the port lt gt Data enclosed in these characters represent data transmitted on the port lt Rt gt These characters are inserted when the RTS line is driven high on the port lt R gt These characters are inserted when the RTS line is dropped low on the port lt CS gt These characters are displayed when the CTS line is recognized high _TT_ These characters are displayed when the timing mark interval has been reached This parameter is user defined Stopping the Data Analyzer Press S to stop the data analyzer Use this option to freeze the display so the data can be analyzed To restart the analyzer press B Important When in analyzer mode program execution will slow down Only use this tool during a trouble shooting session Before disconnecting from the Config Debug port please be sure to press S to stop the Data Analyzer before returning to the main menu
23. Platform Installing and Configuring the Module Modbus Communication Module Slave Function Address Reg Byte Data address Code in count Count Device DEC 01 16 7100 2 8 85 37 22 86 HEX 01 10 1B BC 0002 08 BD 71 42 AA E148 41 B6 In conclusion The Master s Modbus packet contains the data byte and data word counts that have been doubled from the amount specified by Reg Count due to the Float flag set to Y Some Slaves look for the byte count in the data packet to know the length of the data to read from the wire Other slaves know at which byte the data begins and read from the wire the remaining bytes in the packet as the data the Master is sending Master is issuing Modbus command with FC 16 with Float Flag No to transfer Float data MCM Master Internal DB float specific Module parameters Float Flag N 1500 1501 85 37 Float Start 7100 1502 1503 22 86 Modbus Command parameters DB Poll Reg Swap Slave Func Addr Delay Count Code Addr Code 1500 0 2 0 1 16 Modbus Slave 47101 85 37 The user needs to know what area in the Slave s database has been defined for holding Floating values In this example the Slave s Float Start was set at 47001 Internal DB Float Flag N tells the Master to ignore the floating values and treat each register data as a data point composed of 1 word 2 bytes or 16 bits Float Start Ignored DB Addr same as when Float Flag Y Reg Count Tells the Master how
24. Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Confiauration V Version Information W Ware Boot Module Esc Exit Progran Press Y key to confirm configuration receive Receiving configuration file TRANSFERRING CONFIGURATION FROM PC TO ProSoft NODULE Using the Ymode file transfer protocol Select the SEND menu option and transfer the configuration file c Cornscted 0 00 07 The Send File dialog appears E Send File Folder C Documents and Settings mrodriques Filename Ce Protocol v 5 Use the Browse button to locate the configuration file your computer Note This procedure assumes that you are uploading a newly edited configuration file from your PC to the module However configuration files are also available on the ProSoft CD as well as the ProSoft Technology web site at http www prosoft technology com ProSoft Technology Inc Page 51 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 6 Select Ymodem as the protocol 7 Click the Send button This action opens the Ymodem File Send dialog box Ymodem file send Sending CAMVINFILE CFG Packet 7 Eror checking ERC File size 6K Retries 0 Total retries oo Files 1 of 1 Last error File TETTIIIIPT PPP 5K of BK Elapsed 00 00 01 Remaining Throughput When the file trans
25. You may see something like this Configure Drivers Available Driver Types x Add New m Configured Drivers Status Name and Description AB_DF1 1 DH485 Sta 10 COM1 RUNNING Page 98 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module If you see the status as running you will not be able to use this com port for anything other than communication to the processor To stop the driver press the Stop on the side of the window Configure Startup Start Stop Delete 5 After you have stopped the driver you will see the following Available Driver Types zl r Configured Drivers Name and Description _ _Status AB_DF1 1 DH485 Sta 10 COM1 STOPPED Stopped 6 Upon seeing this you may now use that com port to connect to the debug port of the module Note You may need to shut down and restart your PC before it will allow you to stop the driver usually only on Windows NT machines If you have followed all of the above steps and it will not stop the driver then make sure you do not have RSLogix open If RSLogix is not open and you still cannot stop the driver then reboot your PC 5 3 2 RS 232 When the RS 232 interface is selected the use of hardware handshaking control and monitoring of modem signal lines is user definable If no hardware handshaking will be used the ca
26. a block code of 5003 contains 3 command indexes that are to be used with Port 1 The Command index parameters in the block have a range of 0 to 99 and correspond to the master command list entries The module responds to a command control block with a block containing the number of commands added to the command queue for the port The format of the block is displayed below Read Block Command Control Offset Description Length in words 0 5000 to 5006 or 5100 to 5106 1 1 Write Block ID 1 2 Number of commands added to command queue 1 3 to n 1 Spare n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file Pass Through Control Blocks If one or more of the slave ports on the module are configured for the formatted pass through mode the module will pass blocks with identification codes of 9956 9957 9958 and 9959 to the processor for each received write command Any MODBUS function 5 6 15 or 16 commands will be passed from the port to the processor using this block identification number Ladder logic must handle the receipt of all MODBUS write functions to the processor and to respond as expected to commands issued by the remote MODBUS master device The structure of the formatted pass through control block is shown in the following tables Function 5 Offset Description Length in words 0 0 1 1 9958 1 2 Length 1 3 Data Address 1 4t
27. and 2 respectively Sending the Configuration File Press S to upload send an updated configuration file to the module For more information on receiving and sending configuration files please see Uploading and Downloading the Configuration File page 45 Receiving the Configuration File Press R to download receive the current configuration file from the module For more information on receiving and sending configuration files please see Uploading and Downloading the Configuration File page 45 ProSoft Technology Inc Page 59 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Warm Booting the Module Caution Some of the commands available to you from this menu are designed for advanced debugging and system testing only and can cause the module to stop communicating with the processor or with other devices resulting in potential data loss or other failures Only use these commands if you are specifically directed to do so by ProSoft Technology Technical Support staff Some of these command keys are not listed on the menu but are active nevertheless Please be careful when pressing keys so that you do not accidentally execute an unwanted command Press W from the Main Menu to warm boot restart the module This command will cause the program to exit and reload refreshing configuration parameters that must be set on program initialization Only use th
28. block The location of this status block in the module s internal database is user defined The following flow chart and associated table describe the flow of data into and out of the module Driver 8 r Processor Memory Backplane Interface 1 MCM Memory 8 I ControlLogix f Cano es Database Modbus Addresses Addresses 0 40001 8 8 I _ _ ______ i 8 I Regi s i pnag z Register a I Dafi w storage 1 i i Master l Mode I 4999 I Status r from Module Status 1 onfiguratio nfiguration Data Event Cmd Event Cmd ee _ gt Data Command Control Step Description 1 The Master driver obtains configuration data from the user defined CFG file that is stored locally on the MVI69 MCM module itself The configuration data obtained includes port configuration the number of commands and the Master Command List that the MVI69 MCM module will issue or commands can be issued directly from the Compact Logix processor using event command control These values are used by the Master driver to determine the type of commands to be issued to the other nodes on the MODBUS network 2 After configuration the Master driver begins transmitting read and or write commands to the other nodes on the network If writing data to another node the data for the write command is obtained from the module s internal database to build the com
29. click Receive W Receive File Place received file in the following folder cw Come Use receiving protocol Ymodem v Receive Close Cancel e Note ProSoft Technology suggests that you upload the configuration file pre loaded on your module However configuration files are also available on the ProSoft CD as well as the ProSoft Technology web site at http www prosoft technology com 6 Select Ymodem as the receiving protocol Page 48 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module 7 Click the Receive button This action opens the Ymodem File Receive dialog box showing the progress of your file transfer Hyper Terminal Ee Et Yew Cat Inde io EsceExit Progr Press Y key to Sending configurd TRANSFERRING CONF The Ynoden Select the Building configuration file image from module Ready to Send Cornscted 0 00 07 feta detect SOO BML ue When the configuration file has been transferred to your PC the dialog box will indicate that the transfer is complete HyperTerminal fie Em Yew Ce Iade tho Cow 3 0a g Press Y key to confirm configuration send Sending configuration file TRANSFERRING CONFIGURATION FILES FROM ProSoft MODULE TO PC The Ymoden protocol is used to send the file from the module Select the RECEIVE menu option and destination directory Building
30. devices 5053 Use CTS Line This parameter specifies if the CTS modem control line is to be used If the parameter is set to 0 the CTS line will not be monitored If the parameter is set to 1 the CTS line will be monitored and must be high before the module will send data This parameter is normally only required when half duplex modems are used for communication 2 wire 5054 Slave ID This parameter defines the virtual MODBUS slave address for the internal database All requests received by the port with this address are processed by the module Verify that each device has a unique address on a network Valid range for this parameter is 1 to 255 247 on some networks 5055 Bit in Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network requests for MODBUS Function 2 commands For example if the value is set to 150 an address request of 0 will return the value at register 150 in the database 5056 Word in Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network request for MODBUS function 4 commands For example if the value is set to 150 an address request of 0 will return the value at register 150 in the database ProSoft Technology Inc May 22 2007 Page 109 of 121 MVI69 MCM CompactLogix Platform Modbus Communication Module Reference Register Content Descriptio
31. display the configuration and statistics of the backplane data transfer operations Press to view a list of commands available on this menu eeaeee III IIo B Backplane Menu Is Display Menu i J V Version Information r h M Main Menu h C Coniguration Information eN 7 5 h D Diagnostic Information CE aang Redisplays refreshes this menu Displays version information screen pS aMMa Goes up one level to main menu ah Displays configuration screen SS Displays backplane diagnostic information Redisplaying the Menu Press to display the current menu Use this command when you are looking at a screen of data and want to view the menu choices available to you Viewing Version Information Press V to view Version information for the module Use this command to view the current version of the software for the module as well as other important values You may be asked to provide this information when calling for technical support on the product Values at the bottom of the display are important in determining module operation The Program Scan Counter value is incremented each time a module s program cycle is complete Tip Repeat this command at one second intervals to determine the frequency of program execution Returning to the Main Menu Press M to return to the Main Menu Viewing Configuration Information Press C to view configuration
32. few special characters that must be entered exactly as shown Some of these characters will require you to use the Shift Ctrl or Alt keys to enter them correctly For example on US English keyboards enter the command as Shift Also take care to distinguish capital letter I from lower case letter I L and number 1 likewise for capital letter 0 and number 0 Although these characters look nearly the same on the screen they perform different actions on the module 4 1 2 Required Hardware You can connect directly from your computer s serial port to the serial port on the module to view configuration information perform maintenance and send upload or receive download configuration files ProSoft Technology recommends the following minimum hardware to connect your computer to the module 80486 based processor Pentium preferred 1 megabyte of memory Atleast one serial communications port available A null modem serial cable Page 56 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module 4 1 3 Required Software In order to send and receive data over the serial port COM port on your computer to the module you must use a communication program terminal emulator A simple communication program called HyperTerminal is pre installed with recent versions of Microsoft Windows operating sy
33. in the ladder logic of the processor The write data WriteData is an array set to match the value entered in the WriteRegCnt parameter of the MCMModule object For ease of use this array should be dimensioned as even increments of n words This data is paged up to nwords at a time from the processor to the module The WriteData task places the write data into the output image for transfer to the module This data is passed from the processor to the module for status and control information for use in other nodes on the network If this array is gt 480 registered change the high LIM value in ReadData rung 1 and WriteData rung 21 of the ladder file 2 3 3 Slave Polling Control and Status Two arrays are allocated in the module s primary object to hold the polling status of each slave on the master ports This status data can be used to determine which slaves are currently active on the port are in communication error or have their polling suspended and disabled Ladder logic in the processor can be written to monitor and control the status of each slave on a master port The objects used are displayed in the following diagram SlaveStatus Decimal Slaves Status Using special blocks the processor can request the current data for the slaves Through the use of other blocks the processor can enable or disable the polling of selected slaves 2 3 4 MODBUS Message Data This new version of the module s program includes the pass through
34. information for the selected port protocol driver or device Viewing Backplane Diagnostic Information Press D to view Backplane Diagnostic information Use this command to display the configuration and statistics of the backplane data transfer operations between the module and the processor The information ProSoft Technology Inc Page 63 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module on this screen can help determine if there are communication problems between the processor and the module Tip Repeat this command at one second intervals to determine the number of blocks transferred each second 4 1 8 Protocol Serial MCM Menu Press 0 or 1 to view protocol serial information for ports 1 and 2 respectively Use this command to view a variety of error and status screens for the port Press to view a list of commands available on this menu See 0 1 Protocol_Serial Menu Display Menu p Redisplays refreshes this menu L a gt IS ar z Y Version Information Displays version information screen pua __________ eee C Configuration Information F pays configuration information 8 a auMM 5 ha Opensthe Master Command List h See Master Command List Menu L Master Command List g rimenu gt section Serial Port m Opensthe Serial Port menu ED See Serial Port Men
35. is required to perform a warm boot software reset operation The structure of the control block is shown below Offset Description Length in words 0 9998 1 1ton Spare 247 n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file Cold Boot This block is sent from the CompactLogix or MicroLogix processor to the module output image when the module is required to perform the cold boot hardware reset operation This block is sent to the module when a hardware problem is detected by the ladder logic that requires a hardware reset The structure of the control block is shown below Offset Description Length in words 0 9999 1 1ton Spare 247 n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file 5 2 5 Data Flow between MVI69 MCM Module and CompactLogix or MicroLogix Processor The following topics describe the flow of data between the two pieces of hardware CompactLogix or MicroLogix processor and MVI69 MCM module and other nodes on the MODBUS network under the module s different operating modes Each port on the module is configured to emulate a MODBUS master device or a MODBUS slave device The operation of each port is dependent on this configuration The sections below discuss the operation of each mode Slave Driver The Slave Driver Mode allows the MVI69 MCM module to respond to data r
36. many data points to send to the Slave Swap Code same as when Float Flag Y Func Code same as when Float Flag Y Addr in Dev same as when Float Flag Y as long as the Slave s Float Flag Y In the above example the Master s Modbus command to transmit inside the Modbus packet will be as follows Page 40 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module Slave Function Address Reg Byte Data address Code in count Count Device DEC 01 16 7100 2 4 85 37 HEX 01 10 1B BC 00 02 04 BD 71 42 AA In conclusion The Master s Modbus packet contains the data byte and data word counts that have NOT been doubled from the amount specified by Reg Count due to the Float Flag set to N The Slave looks for the byte count in the data packet to know the length of the data to read from the wire Because of insufficient byte count some slaves will read only half the data from the Master s transmission Other slaves will read all 8 bytes in this example because they will Know where in the packet the data starts and ignore the byte count parameter inside the Modbus packet Master is issuing Modbus command with FC 3 to transfer Float data from Slave MCM Master Internal DB 0009 float specific Module parameters Float Flag not applicable 3700 3701 37 25 Float Start not applicable 3702 3703 275 69 Modbus Command parameters
37. of 0 to 65535 The following table discusses each parameter Each parameter is discussed below Command Range Description Parameter Enable 0 1 2 This field defines whether or not the command is to be executed and under what conditions Value Description 0 The command is disabled and will not be executed in the normal polling sequence ProSoft Technology Inc Page 43 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Modbus Communication Module Installing and Configuring the Module Command Parameter Range Description 1 The command is executed each scan of the command list if the Poll Interval Time is set to zero If the Poll Interval time is set the command will be executed when the interval timer expires 2 The command will execute only if the internal data associated with the command changes This value is valid only for write commands Internal Address 0 to 4999 registers 0 to 65535 bits This field specifies the internal database register to be associated with the command If the command is a read function the data read from the slave device will be placed starting at the register value entered in this field If the command is a write function the data written to the slave device will be sourced from the address specified Poll Interval 0 to 65535 This parameter specifies the minimum interval to execute continuous commands Enable code of 1
38. or disconnecting from the port This action will allow the module to resume its normal operating mode ProSoft Technology Inc Page 69 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Returning to the Main Menu Press M to return to the Main Menu 4 1 12 Data Analyzer Tips From the main menu press A for the Data Analyzer You should see the following text appear on the screen Data Analyzer Mode Selected After the Data Analyzer mode has been selected press to view the Data Analyzer menu You will see the following menu DATA ANALYZER VIEW MENU Display Menu 1 Select Port 1 2 Select Port 2 9 1 mSec Ticks 6 5 mSec Ticks 7 10 mSec Ticks 8 50 mSec Ticks 9 100 mSec Ticks No mSec Ticks H Hex Format A ASCII Format B Start Stop M Main Menu Port 1 Format HEX Tick 10 From this menu you can select the Port the format and the ticks that you can display the data in For most applications HEX is the best format to view the data and this does include ASCII based messages because some characters will not display on HyperTerminal and by capturing the data in HEX we can figure out what the corresponding ASCII characters are supposed to be The Tick value is a timing mark The module will print a _TT for every xx mSec of no data on the line Usually 10msec is the best value to start with After you have selected the Port Format
39. parameter is 1 to 255 247 on some networks 5025 Bit in Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network requests for MODBUS Function 2 commands For example if the value is set to 150 an address request of 0 will return the value at register 150 in the database 5026 Word in Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network request for MODBUS function 4 commands For example if the value is set to 150 an address request of 0 will return the value at register 150 in the database 5027 Out in Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network requests for MODBUS function 1 5 or 15 commands For example if the value is set to 100 an address request of 0 will correspond to register 100 in the database 5028 Holding Reg Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network requests for MODBUS function 3 6 or 16 commands For example if a value of 50 is entered a request for address 0 will correspond to the register 50 in the database 5029 Command Count This parameter specifies the number of commands to be processed by the MODBUS master port 5030 Minimum Command Delay This parameter specifies the number of milliseconds to wait between
40. processor is asynchronous from the actions on the Modbus network A 5000 word register space in the module exchanges data between the processor and the Modbus network 5 1 1 Features and Benefits The inRAx Modbus Master Slave Communications module MVI69 MCM is designed to allow CompactLogix processors to interface easily with Modbus protocol compatible devices and hosts Many host SCADA packages support the Modbus protocol while devices commonly supporting the protocol include several PLCs as well as many other third party devices in the marketplace For a partial list of devices that speak Modbus please visit the ProSoft Tested section of the ProSoft web site 5 1 2 General Specifications Single Slot 1769 backplane compatible The module is recognized as an Input Output module and has access to processor memory for data transfer between processor and module Ladder Logic is used for data transfer between module and processor Sample ladder file included Configuration data obtained from configuration text file downloaded to module Sample configuration file included Supports all CompactLogix processors L20 L30 L31 L32 L35 L43 v16 only Supports MicroLogix 1500 Controller with LRP firmware version 6 0 or newer ProSoft Technology Inc Page 75 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module 5 1 3 Hardware Specifications Specification Descript
41. the Com Port on the PC e 57 97 Displaying the Current Page of Registers Again 61 Displaying Timing Marks in the Data Analyzer 68 Download the Sample Program to the Processor 14 MVI69 MCM CompactLogix Platform Modbus Communication Module E ENRON Floating Point Support 37 Event Command 89 Exiting the Program 60 F Features and Benefits 75 Floating Point Support 36 Function 15 92 Function 5 91 Function 6 and 16 92 Functional Overview 5 78 Functional Specifications 76 G General Concepts 78 General Specifications 75 Guide to the MVI69 MCM User Manual 5 H Hardware Specifications 76 If Block Transfer Size 120 83 If Block Transfer Size 240 84 If Block Transfer Size 60 83 Initialize Output Data 84 Installing and Configuring the Module 19 Installing and Configuring the Module with a CompactLogix Processor 21 Installing and Configuring the Module with a MicroLogix Processor 29 Installing the Module 10 K Keystrokes 56 L Ladder Logic 53 LED Status Indicators 72 Main Logic Loop 79 Main Menu 58 Master Command Error List Menu 65 Master Command List 96 Master Driver Mode 94 MCM Database Definition 103 Misc Status 103 111 MODBUS Command Configuration 36 ProSoft Technology Inc May 22 2007 Page 119 of 121 MVI69 MCM CompactLogix Platform Modbus Communication Module MODBUS Mes
42. the accompanying written materials for up to one year 12 months from the date of original purchase 3 years for RadioLinx products from ProSoft If you need to return the device for repair obtain an RMA Returned Material Authorization number from ProSoft Technology Inc in accordance with the RMA instructions below Please call the factory for this number and print the number prominently on the outside of the shipping carton used to return the device If the product is received within the warranty period ProSoft will repair or replace the defective product at our option and cost Page 116 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Warranty Procedure Upon return of the hardware product ProSoft will at its option repair or replace the product at no additional charge freight prepaid except as set forth below Repair parts and replacement product will be furnished on an exchange basis and will be either reconditioned or new All replaced product and parts become the property of ProSoft If ProSoft determines that the Product is not under warranty it will at the Customer s option repair the Product using then current ProSoft standard rates for parts and labor and return the product freight collect Limitation of Liability EXCEPT AS EXPRESSLY PROVIDED HEREIN PROSOFT MAKES NO WARRANT OF ANY KIND EXPRESSED OR IMPLIED WITH RESPECT TO ANY EQUIPMENT PART
43. this field contains the index of the command with an error 33 Port 2 Current Error For a slave port this field contains the value of the current error code returned For a master port this field contains the index of the currently executing command 34 Port 2 Last Error For a slave port this field contains the value of the last error code returned For a master port this field contains the index of the command with an error 5 2 3 Special Blocks Slave Status Blocks Slave status blocks send status information of each slave device on a master port Slaves attached to the master port can have one of the following states State Description 0 The slave is inactive and not defined in the command list for the master port 1 The slave is actively being polled or controlled by the master port and communications is successful 2 The master port has failed to communicate with the slave device Communications with the slave is suspended for a user defined period based on the scanning of the command list Page 86 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module State Description 3 Communications with the slave has been disabled by the ladder logic No communication will occur with the slave until this state is cleared by the ladder logic Slaves are defined to the system when the module initializes the master command list Each slave define
44. this parameter 5036 Spare 5037 Spare 5038 Spare 5039 Spare 5 6 2 Port 2 Setup Register Content Description 5040 Enable This parameter defines if this MODBUS port will be used If the parameter is set to 0 the port is disabled A value of 1 enables the port 5041 Type This parameter specifies if the port will emulate a MODBUS master device 0 a MODBUS slave device without pass through 1 or a MODBUS slave device with unformatted pass through 2 or a MODBUS slave device with formatted pass through and data swapping 3 5042 Float Flag This flag specifies if the floating point data access functionality is to be implemented If the float flag is set to 1 MODBUS functions 3 6 and 16 will interpret floating point values for registers as specified by the two following parameters 5043 Float Start This parameter defines the first register of floating point data All requests with register values greater than or equal to this value will be considered floating point data requests This parameter is only used if the Float Flag is enabled 5044 Float Offset This parameter defines the start register for floating point data in the internal database This parameter is only used if the Float Flag is enabled 5045 Protocol This parameter specifies the MODBUS protocol to be used on the port Valid protocols are 0 MODBUS RTU and 1 MODBUS ASCII Page 108 of
45. to the previous 500 registers of data Viewing the Previous 100 Registers of Data Press P from the Database View menu to display the previous 100 registers of data Skipping 500 Registers of Data Hold down Shift and press to skip forward to the next 500 registers of data Viewing the Next 100 Registers of Data Press N from the Database View menu to select and display the next 100 registers of data Viewing Data in Decimal Format Press D to display the data on the current page in decimal format Viewing Data in Hexadecimal Format Press H to display the data on the current page in hexadecimal format Viewing Data in Floating Point Format Press F from the Database View menu Use this command to display the data on the current page in floating point format The program assumes that the values are aligned on even register boundaries If floating point values are not aligned as such they are not displayed properly Viewing Data in ASCII Text Format Press A to display the data on the current page in ASCII format This is useful for regions of the database that contain ASCII data Returning to the Main Menu Press M to return to the Main Menu Page 62 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module 4 1 7 Backplane Menu Press B from the Main Menu to view the Backplane Data Exchange List Use this command to
46. values In this example the Slave s Float Start was set at 47001 Float specific module parameters Float Flag Y tells the Master to consider the data values that need to be sent to the Slave as floating point data where each data value is composed of 2 words 4 bytes or 32 bits Float Start Tells the Master that if this address number is lt the address number in Addr in Dev parameter to double the byte count quantity to be included in the Command FC6 or FC16 to be issued to the Slave Otherwise the Master will ignore the Float Flag Y and treat data as composed of 1 word 2 bytes Modbus Command parameters DB Addr Tells the Master where in its data memory is the beginning of data to obtain and write out to the Slave slave device Reg Count Tells the Master how many data points to send to the Slave Two counts will mean two floating points with Float Flag Y and the Addr in Dev gt the Float Start Parameter Swap Code Tells the Master how to orient the Byte and Word structure of the data value This is device dependent Check Command Entry formats Section Func Code Tells the Master to write the float values to the Slave FC16 Addr in Dev Tells the Master where in the Slave s database to locate the data In the above example the Master s Modbus command to transmit inside the Modbus packet will be as follows ProSoft Technology Inc Page 39 of 121 May 22 2007 MVI69 MCM CompactLogix
47. 0 66 60 60 60 A3 67 TT lt R gt lt 01 gt lt 03 gt lt 08 gt lt 80 gt lt 66 gt lt 0A gt lt C5 gt lt CD gt lt R gt _TT_ 61 63 14 60 60 60 00 90 60 96 00 09 909 86 90 96 96 60 _TT_ 60 60 66 96 60 A3 67 _TT_ lt R gt lt O1 gt lt 03 gt lt 00 gt lt 05 gt lt 00 gt lt 8A gt lt C5 gt lt CD gt lt R gt _TT_ 61 03 14 68 08 60 60 68 TT 80 G8 06 80 66 98 86 66 66 60 66 66 aali aali 60 A3 67 _TT_ lt R gt lt 01 gt lt 63 gt lt 06 gt lt 00 gt lt 80 gt lt OA gt lt C5 gt lt CD gt lt R gt _TT_ 61 63 14 60 60 60 06 60 60 TT_ 60 G0 G6 99 00 00 08 86 86 60 60 66 66 00 AS 67 _TT_ lt R gt lt 61 gt lt 63 gt lt 80 gt lt 80 gt lt 06 gt lt OA gt lt C5 gt lt CD gt lt R gt _TT_ 61 03 14 66 08 68 66 66 66 _TT_ 66 66 66 60 06 99 990 99 98 86 66 68 66 68 A3 67 _TT_ lt R gt lt 61 gt lt 63 gt lt 88 gt lt 86 gt lt 86 gt lt GA gt lt C5 gt lt CD gt lt R gt _TT_ 61 83 14 08 00 66 66 68 66 66 66 66 64 68 60 G0 G8 0 TT 88 68 86 60 68 A3 67 TT _ lt R gt lt 61 gt lt 03 gt lt 06 gt lt 60 gt lt 80 gt lt 6A gt lt C5 gt lt GD gt lt R gt _TT_ 01 03 14 86 60 66 66 66 66 60 60 66 06 00 60 66 60 G0 _TT 00 00 60 909 80 A3 67 _ TT _ lt R gt lt 01 gt lt 03 gt lt 60 gt lt 08 gt lt 068 gt lt
48. 2 This parameter sets the number of milliseconds to delay after RTS is asserted before the data will be transmitted Valid values are in the range of 0 to 65535 milliseconds 5021 RTS Off This parameter sets the number of milliseconds to delay after the last byte of data is sent before the RTS modem signal will be set low Valid values are in the range of 0 to 65535 5022 Minimum Response Time This parameter specifies the minimum number of milliseconds to delay before responding to a request message This pre send delay is applied before the RTS on time This may be required when communicating with slow devices Page 106 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Register Content Description 5023 Use CTS Line This parameter specifies if the CTS modem control line is to be used If the parameter is set to 0 the CTS line will not be monitored If the parameter is set to 1 the CTS line will be monitored and must be high before the module will send data This parameter is normally only required when half duplex modems are used for communication 2 wire 5024 Slave ID This parameter defines the virtual MODBUS slave address for the internal database All requests received by the port with this address are processed by the module Verify that each device has a unique address on a network Valid range for this
49. 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Where n 60 120 or 240 depending on the Block Transfer Size parameter refer to the configuration file Ladder logic in the processor must recognize these blocks and place the correct information in the output image to be returned to the module The format of the returned write block is shown in the following table Offset Description Length 0 4000 to 4083 1 1ton Output Data n Status Data Block Read Block ID 0 After the last Read Block is sent the module builds an output image ID 0 to transfer the module s status information to the processor This information can be used by the PLC program to determine the current status of the module Ladder logic should be constructed to transfer the information in this block to a user data file The structure of this block is shown in the following table Offset Content Description 0 Read Block ID Block identification code 1 to indicate a status block 1 Write Block ID Block requested from the processor by the module 2 Program Scan Count This value is incremented each time a complete program cycle occurs in the module 4 Product Code These two registers contain the product code of MCM 6 Product Version These two registers contain the product version for the currently running software 7 8 Operating System These two registers contain the month and yea
50. 9 QO 58409206 a 13801020197 MSA ecucompl 3 com Start Here Ivivioy iviuM CompactLogix Platform Modbus Communication Module Guide to the MVI69 MCM User Manual Function Section to Read Details Introduction gt This Section introduces the customer to the Must Do module Included are package contents Start Here page 7 system requirements hardware installation and basic configuration Verify Communication gt Verifying This section describes how to verify Diagnostic and Communication communications with the network Diagnostic Troubleshooting page 55 and Troubleshooting procedures Diagnostics and Troubleshooting page 55 Reference gt Reference page These sections contain general references 74 associated with this product Specifications progech be diications and the Functional Overview Functional Overview z unctio nal Overview page Glossary 77 Product Specifications page 75 Support Service and gt Support Service This section contains Support Service and Warranty and Warranty Warranty information Index page 114 Index of chapters ProSoft Technology Inc May 22 2007 i 010 81817979 QQ 58409206 13801020197 MSN xec comil 3 com MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module RB Page 6 of 121 i 010 81817979 QO 58409206 13801020197 MSN ec comil 3 com Sta
51. Block Structure Offset Content Description 6670 Program Scan This value is incremented each time a complete program cycle Count occurs in the module 6671 to 6672 Product Code These two registers contain the product code of MCM 6673 to 6674 Product Version These two registers contain the product version for the current running software 6675 to 6676 Operating These two registers contain the month and year values for the System program operating system 6677 to 6678 Run Number These two registers contain the run number value for the currently running software 6679 Port 1 Command This field contains the number of requests made from this port to List Requests slave devices on the network 6680 Port 1 Command This field contains the number of slave response messages received List Response on the port ProSoft Technology Inc Page 103 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Modbus Communication Module Reference Offset Content Description 6681 Port 1 Command This field contains the number of command errors processed on the List Errors port These errors could be due to a bad response or command 6682 Port 1 Requests This field contains the total number of messages sent out of the port 6683 Port 1 This field contains the total number of messages received on the Responses port 6684 Port 1 Errors This field contains t
52. Description 6751 Port 1 Guard Band A value of 0 uses the default baud rate or you can Time set a timeout value in milliseconds 6752 Port 1 Fen 99 Offset Internal DB offset to Function 99 counter 6753 Spare 6759 Spare 6760 Port 2 Use Guard Use packet gap timeout for messages Yes or No Band Use only in multi drop applications 6761 Port 2 Guard Band A value of 0 uses the default baud rate or you can Time set a timeout value in milliseconds 6762 Port 2 Fen 99 Offset Internal DB offset to Function 99 counter 6763 Spare 6799 Spare 5 6 6 Command Control Register Content Description 6800 Command Code Enter one of the valid control command codes in this register to control the module 9997 9998 or 9999 6801 Command Data Not Used 6999 Command Data Not Used ProSoft Technology Inc May 22 2007 Page 113 of 121 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Page 114 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Support Service amp Warranty ProSoft Technology Inc survives on its ability to provide meaningful support to its customers Should any questions or problems arise please feel free to contact us at Internet Web Site http Awww prosoft technology com support E mail address support prosoft technology com Phone 1 661 716 5100 1 661 716 5101 Fax Postal Mail ProSoft Technology Inc
53. Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform 4 1 Modbus Communication Module Diagnostics and Troubleshooting In This Chapter gt Reading Status Data from the module ceeeeeeeeeee 55 gt LED Status Indicators eee eeeeeeeeenneeeeeeeeeeenneeeeneaaes 72 gt Clearing a Fault Condition ce ceceeeeceeeeeeeeceeeeeeeeeeeeeaees 73 amp Troubleshooting ccccccccccccsceececeeeeeeeeaeceeeeeseeeeeeeeeeeeeeee 73 The module provides information on diagnostics and troubleshooting in the following forms Status data values are transferred from the module to the processor Data contained in the module can be viewed through the Configuration Debug port attached to a terminal emulator LED status indicators on the front of the module provide information on the module s status Reading Status Data from the module The MVI69 MCM module returns a 29 word Status Data block that can be used to determine the module s operating status This data is located in the module s database at registers 6670 to 6698 and at the location specified in the configuration This data is transferred to the CompactLogix or MicroLogix processor continuously 4 1 1 The Configuration Debug Menu The Configuration and Debug menu for this module is arranged as a tree structure with the Main Menu at the top of the tree and one or more sub menus for each menu command The first menu you see when you c
54. Drivers dialog box r vailable Driver Types Cos RS 232 DF1 Devices Add New L tose Help H Configured Drivers Name and Description _ _ Status Configure Startup Start Stop Delete Note If the list of configured drivers is blank you must first choose and configure a driver from the Available Driver Types list The recommended driver type to choose for serial communication with the processor is RS 232 DF1 Devices H A ae 010 81817979 QQ 38409206 a 13801020197 MSH xc comml 3 com ProSoft Technology Inc May 22 2007 MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module 3 Click to select the driver and then click Configure This action opens the Configure Allen Bradley DF 1 Communications Device dialog box Configure Allen Bradley DF1 Communications Device Device Name AB_DF1 1 Comm Port com Re Device Logix 5550 Serial Port Baud Rate 19200 7 Staron Number oi Octal Parity None x Error Checking crc x Stop Bits fi he Protocol FullDuplex Auto Configure I Use Modem Dialer Cancel Delete Help 4 Click the Auto Configure button RSLinx will attempt to configure your serial port to work with the selected driver 5 When you see the message Auto Configuration Successful click the OK button to dismiss the dialog box Note If the auto c
55. Logix Platform Modbus Communication Module Block Transfer Size 240 Installing and Configuring the Module Field Recommended Value Type 1769 MODULE Generic 1769 Module Parent Local Name MVI69 Description MVI69 Application Module Comm Format Data INT Slot The slot number in the rack where the module is installed Input Assembly 101 Instance Input Size 242 Output Assembly 100 Instance Output Size 241 Configuration 102 Assembly Instance Configuration Size 0 Important If you set the Assembly Instance and Size values incorrectly the module will not communicate over the backplane of the CompactLogix or MicroLogix rack Click Next to contin ue For Block Size 60 words New Module Name Description Comm Form Slot 1769 MODULE Generic 1769 Module Local Connection Parameters Assembly nstance Size Input 101 62 Output 100 61 Configuration at MV Open Module Properties Cancel 0 H 16 bit 16 bit 16 bit Page 24 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform For Block Size 120 words Type 1769 MODULE Generic 1769 Module Parent Local Connection Parameters Assembly Instance Name Input 101 Description Output 100 Configuration 102 Comm Format Data INT v Slot 1
56. M1_sTATUS Description H Menini Data Type Size 72 byte s E o Pass_Cnt INT Decimal Prod SINTA asa O Rev SINT 4 ASCII Op SINT 4 ASCII Run SINT 4 JASO JE PortEr MCM1_PORT_ERROR 2 _ BkStats MCM1_BLK_STATS Bb Portl_CurEr INT Decimal E Portl_LastErr INT Decimal E Port2_CurErr INT Decimal i Port2_LastErr INT Decimal Cancel Apply Help Refer to the Reference chapter for a complete listing of the data stored in this object 2 3 2 User Data Objects These objects hold data to be transferred between the processor and the MVI69 MCM module The user data is the read and write data transferred between the processor and the module as pages of data up to 240 words long ReadData INT 720 Decimal Data read from module WriteData INT 720 Decimal Data written to module The read data ReadData is an array set to match the value entered in the ReadRegCnt parameter of the MCMModule object For ease of use this array should be dimensioned as an even increment of n words where n 60 120 or 240 words This data is paged up to n words at a time from the module to the processor The ReadData task places the data received into the proper position Page 34 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module in the read data array Use this data for status and control
57. MODBUS register or digital point address to be considered by the command in the MODBUS slave device Refer to the documentation of each MODBUS slave device on the network for their register and digital point address assignments The FC determines the addresses range and that this value will be the register or bit OFFSET into a given data range For instance if the command is to be a bit command FC 1 2 5 or 15 to Read Write a Coil 0X address 00001 then the value to enter here would be 0 For Coil address 00110 the value here would be 109 For register Read Write commands FC 3 4 6 or 16 in the 3X FC4 or 4X FC3 say 30001 or 40001 the value here would again be 0 For 31101 or 41101 the value to enter for this parameter would be 1100 2 6 Uploading and Downloading the Configuration File ProSoft modules are shipped with a pre loaded configuration file In order to edit this file you must transfer the file from the module to your PC After editing you must transfer the file back to the module This section describes these procedures Important The illustrations of configuration debug menus in this section are intended as a general guide and may not exactly match the configuration debug menus in your own module For specific information about the configuration debug menus in your module refer to The Configuration Debug Menu ProSoft Technology Inc May 22 2007 Page 45 of 121 MVI69 MCM CompactLogix Platfo
58. NOTE The RSLogix software must be in offline mode to add the module to a project 2 Modify the module s configuration files to meet the needs of your application and copy the updated configuration to the module Example configuration files are provided on the CD ROM Refer to the Modifying the Example Configuration File section later in this chapter for more information on the configuration files 3 Modify the example ladder logic to meet the needs of your application and copy the ladder logic to the processor Example ladder logic files are provided on the CD ROM Note If you are installing this module in an existing application you can copy the necessary elements from the example ladder logic into your application ProSoft Technology Inc May 22 2007 Page 21 of 121 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module The rest of this chapter describes these steps in more detail The first step in setting up the processor ladder file is to define the I O type module to the system Right click the mouse button on the I O Configuration option in the Controller Organization window to display a pop up menu Select the New Module option from the I O Configuration menu B E Controller MVI69 A Controller Tags Controller Fault Handler Power Up Handler Tasks fa MainTask 3 MainProgram 2 Unscheduled Programs Motion Groups Ungrouped Axes Trends Dat
59. ProSoft Technology Inc Please call the factory for this number and print the number prominently on the outside of the shipping carton used to return the device ProSoft Technology Inc Page 115 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module General Warranty Policy Terms and Conditions ProSoft Technology Inc hereinafter referred to as ProSoft warrants that the Product shall conform to and perform in accordance with published technical specifications and the accompanying written materials and shall be free of defects in materials and workmanship for the period of time herein indicated such warranty period commencing upon receipt of the Product Limited warranty service may be obtained by delivering the Product to ProSoft in accordance with our product return procedures and providing proof of purchase and receipt date Customer agrees to insure the Product or assume the risk of loss or damage in transit to prepay shipping charges to ProSoft and to use the original shipping container or equivalent Contact ProSoft Customer Service for more information This warranty is limited to the repair and or replacement at ProSoft s election of defective or non conforming Product and ProSoft shall not be responsible for the failure of the Product to perform specified functions or any other non conformance caused by or attributable to a any misuse misapplication accidental damage abnor
60. S OR SERVICES PROVIDED PURSUANT TO THIS AGREEMENT INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE NEITHER PROSOFT OR ITS DEALER SHALL BE LIABLE FOR ANY OTHER DAMAGES INCLUDING BUT NOT LIMITED TO DIRECT INDIRECT INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES WHETHER IN AN ACTION IN CONTRACT OR TORT INCLUDING NEGLIGENCE AND STRICT LIABILITY SUCH AS BUT NOT LIMITED TO LOSS OF ANTICIPATED PROFITS OR BENEFITS RESULTING FROM OR ARISING OUT OF OR IN CONNECTION WITH THE USE OR FURNISHING OF EQUIPMENT PARTS OR SERVICES HEREUNDER OR THE PERFORMANCE USE OR INABILITY TO USE THE SAME EVEN IF ProSoft OR ITS DEALER S TOTAL LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT Where directed by State Law some of the above exclusions or limitations may not be applicable in some states This warranty provides specific legal rights other rights that vary from state to state may also exist This warranty shall not be applicable to the extent that any provisions of this warranty are prohibited by any Federal State or Municipal Law that cannot be preempted Contact ProSoft Customer Service at 1 661 716 5100 for more information RMA Procedures In the event that repairs are required for any reason contact ProSoft Technical Support at 1 661 716 5100 A Technical Support Engineer will ask you to perform several tests in an attempt to diagnose the problem Simply calling and asking for a RMA witho
61. Soft Technology Inc May 22 2007 Page 111 of 121 MVI69 MCM CompactLogix Platform Modbus Communication Module Reference Register Content Description 6685 Port 1 Errors This field contains the total number of message Received errors received on the port 6686 Port 2 Command List This field contains the number of requests made Requests from this port to slave devices on the network 6687 Port 2 Command List This field contains the number of slave response Response messages received on the port 6688 Port 2 Command List This field contains the number of command errors Errors processed on the port These errors could be due to a bad response or command 6689 Port 2 Requests This field contains the total number of messages sent out the port 6690 Port 2 Responses This field contains the total number of messages received on the port 6691 Port 2 Errors Sent This field contains the total number of message errors sent out the port 6692 Port 2 Errors This field contains the total number of message Received errors received on the port 6693 Read Block Count This field contains the total number of read blocks transferred from the module to the processor 6694 Write Block Count This field contains the total number of write blocks transferred from the module to the processor 6695 Parse Block Count This field contains the total number of blocks successfully parsed that we
62. The parameter is entered in seconds Therefore if a value of 1 is entered for a command the command will execute no more frequently than every 1 second Count Regs 1 to 125 Coils 1 to 2000 This parameter specifies the number of registers or digital points to be associated with the command Functions 5 and 6 ignore this field as they only apply to a single data point For functions 1 2 and 15 this parameter sets the number of digital points inputs or coils to be associated with the command For functions 3 4 and 16 this parameter sets the number of registers to be associated with the command Swap Code 0 1 2 3 This parameter is used only for functions 3 4 6 and 16 to define if the data received or sent from the module is to be ordered differently that data received from the slave device This parameter is helpful when dealing with floating point or other multi register values as there is no standard method of storage of these data types in slave devices This parameter can be set to order the register data received in an order useful by other applications The following table defines the values and their associated operations Code 0 None No Change is made in the byte ordering Description 1 Words The words are swapped 2 Words amp Bytes The words are swapped then the bytes in each word are swapped 3 Bytes The bytes in each word are swapped When swappin
63. VI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module You have now captured and saved the file to your PC This file can now be used in analyzing the communications traffic on the line and assist in determining communication errors 4 2 LED Status Indicators The LEDs indicate the module s operating status as follows ProSoft Color Status Indication Module CFG Green On Data is being transferred between the module and a remote terminal using the Configuration Debug port Off No data is being transferred on the Configuration Debug port P1 Green On Data is being transferred between the module and the MODBUS network on Port 1 Off No data is being transferred on the port P2 Green On Data is being transferred between the module and the MODBUS network on Port 2 Off No data is being transferred on the port APP Amber On The MVI69 MCM is functioning normally Off The MVI69 MCM module program has recognized a communication error between the module and the processor BP ACT Amber On The LED is on when the module is performing a write operation on the backplane Off The LED is off when the module is performing a read operation on the backplane Under normal operation the LED should blink rapidly on and off OK Red Off The card is not receiving any power and is not securely plugged into the rack Green Green The module is operating normally Red The progr
64. a IV Open Module Properties Modbus Communication Module Size 122 16 bit fha H nebi 0 H f6 For Block Size 240 words New Module Type 1769 MODULE Generic 1769 Module Parent Local Connection Parameters Assembly Instance Size Name Input 101 242 16 bit Description Output 100 24 H 16 bi Configuration 102 0 H 16 bit Comm Format Data INT z Slot 1 V Open Module Properties Cancel Fill in the dialog boxes as shown adjusting the Name Description and Slot options for your application You must select the Comm Format as Data INT in the dialog box Failure to set the Assembly Instance and Size values correctly will result in a module that will not communicate over the backplane of the CompactLogix rack Click Next to open the next dialog box ProSoft Technology Inc May 22 2007 Page 25 of 121 MVI69 MCM CompactLogix Platform Modbus Communication Module Ml Module Properties Locat 1 1769 MODULE 1 1 Eg General Connection Requested Packet Interval RPI l 2 0 ms r Z Major Fault Gn Controller If Connection Fails hilein Run Mode Installing and Configuring the Module r Module Fault Status Offline Cancel Apply Help Select the Request Packet Interval value for scanning the I O on the module This value represents the minimum frequency the module will handle scheduled events This value should not be s
65. a Types Ca User Defined Oe Strings Cih Predefined C Module Defined I O Configuration 1 1769 1355 Ethernet Port LocalENB o BP aH eresi D F go Cut rl X Ba Cop Ctrl C Cross Reference Ctrl E Properties This action opens the Select Module Type dialog box Select Module Type xi Type 1769 MODULE Description 1769 1Q16F 16 Point 24V DC High Speed Input 1769 1032 32 Point High Density 24V DC Input 1769 IQ6XOW4 6 Point 24V DC Sink Source Input 4 Point AC DC Relay Output 1769 IR6 6 Channel RTD Direct Resistance Analog Input 1 769 IT6 6 Channel Thermocouple mY Analog Input Generic 1769 Module 1769 0416 16 Point 100 240 AC Output 1769 048 8 Point 100 240 AC Output 1769 0016 16 Point 24V DC Output Source 1769 0B16P 16 Point 24V DC Protected Output 1769 0832 32 Point High Density 24V DC Output 1769 088 8 Point High Current 24 DC Output 1 769 0F2 2 Channel Current Voltage Analog Output 1769 0V16 16 Point 24V DC Output Sink xl Show Vendor All 7 Other V Specialty 1 0 Select All M Analog WM Digital V Communication V Motion IV Controller Clear All Cancel Help Select the 1769 Module Generic 1769 Module from the list and click OK You should configure the Connection Parameters according to the Block Transfer Size parameter in the configuration file as follows Page 22 of 121 ProSoft Technology Inc May 22 2007
66. aaea avane aaea aeaii 7 1 1 System Requirements ccccsecccceceeeseeesseeeeseeeeneeeeeseeeseseeeeeeeeeeeaesaseeenseeeeseaeseseeeenseeeeeas 7 1 2 Package Contents siiin aean easan anaien ae ot Se aaa ene aa oaa censetececeetuervasneetcecerenede 8 1 3 SOT G JUMperS asihe sated ce cece ehna boan aeae aan eue teat penaa a ruth vetece eaeeretcvesteareeueerenes 9 1 4 Installing the MOCUIe cccsecccceseeeceeeseneeeeeneneeeeenseeeeeeeseeeeeenseeeeeeenseeeeeenseeeeeenseeeeeennees 10 1 5 Connect your PC to the Processor s ecccsecsesteesseeeeeeeeeseeeseseaeenseeeeeeeeeseeeesaseeeeneeeess 13 1 6 Download the Sample Program to the ProCe SSOl 1ccssccssscesseeeeeeeeeeeeesseeenseeeeeees 14 1 6 1 Configuring RSLINX 2cicecdiceccetenecedtivin deed vend eseveade aeii vane ee i aedini ea 15 1 7 Connect your PC to the MOdulle ccscsecccesccesseeeeseeeeeeeeeseeeseseeeeeneeeeseeeseseeesnseeeeeeeeeas 17 2 INSTALLING AND CONFIGURING THE MODULE 0 ccssccssseeeeseeeesseeseeeeeeeeeeeeeeeseneeeeeeenenas 19 2 1 Installing and Configuring the Module with a CompactLogix Processor 21 2 1 1 After you Complete the Module Setup ccccccceceeeeeeeeceeceeeeeeeseceeecaeaeeeeeeeeeeeenaees 26 2 2 Installing and Configuring the Module with a MicroLogix Processot 00 29 2 3 Module Data Object MCMModuleDeb ccceseeeceeeseeeeeeeseeneeenseeeeeeeeseaeseneeses 32 2 3 1 Status Object MCM1 Statu
67. abled Signal Signal Common Common NOTE If the port is configured with the Use CTS Line set to Y then a jumper is required between the RTS and the CTS line on the module connection 5 3 3 RS 422 RS 422 Application Port Cable DB 9 Male RS 422 Device TxD RxD TxD RxD Signal Signal Common Common RxD 2 roi RxD s to ProSoft Technology Inc Page 101 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module 5 3 4 RS 485 The RS 485 interface requires a single two or three wire cable The Common connection is optional and dependent on the RS 485 network The cable required for this interface is shown below RS 485 Application Port Cable DB 9 Male RS 485 Device TxD RxD TxD RxD TxD RxD TxD RxD Signal Signal Common Common RS 485 and RS 422 Tip If communication in the RS 422 RS 485 mode does not work at first despite all attempts try switching termination polarities Some manufacturers interpret and A B polarities differently 5 3 5 DB9 to RJ45 Adaptor Cable 14 Cable Assembly J2 QOGO0o Gs h Mill J1 Vv 7V Vv J2 or EN DCD Tee TXD PGS e pre RXD RXD UIS i 4 TXD i z i i DTR i cS GND GND GND LS GH i DSR RXD i LS DS HO 2 i i CTS TXRXD TXD i NIC ip i j Wiring Diagram
68. ain a eh adds aeiae a E a teeta S 21 gt Installing and Configuring the Module with a MicroLogix PFOCESSOR erii eira tab E a a ADI EE 29 gt Module Data Object MCMModuleDef cece 32 gt Command List OvervieW eee eeeeeeeeeeneeeeeeneeeeenneeeeeeas 35 gt MODBUS Command Configuration ccceeeeeeeerteees 36 gt Uploading and Downloading the Configuration File 45 This chapter describes how to install and configure the module to work with your application The configuration process consists of the following steps 1 Use RSLogix to identify the module to the processor and add the module to a project NOTE The RSLogix software must be in offline mode to add the module to a project 2 Modify the module s configuration files to meet the needs of your application and copy the updated configuration to the module Example configuration files are provided on the CD ROM Refer to the Modifying the Example Configuration File section later in this chapter for more information on the configuration files 3 Modify the example ladder logic to meet the needs of your application and copy the ladder logic to the processor Example ladder logic files are provided on the CD ROM Note If you are installing this module in an existing application you can copy the necessary elements from the example ladder logic into your application The rest of this chapter describes these steps in mor
69. am has detected an error or is being configured If the LED remains red for over 10 seconds the program has probably halted Remove the card from the rack and re insert the card to restart the module s program BAT Red Off The battery voltage is OK and functioning On The battery voltage is low or battery is not present Allow battery to charge by keeping module plugged into rack for 24 hours If BAT LED still does not go off contact the factory as this is not a user serviceable item During module configuration the OK LED will be red and the BP ACT LED will be on If the APP BP ACT and OK LEDs blink at a rate of every one second this indicates a serious problem with the module Call Prosoft Technology support to arrange for repairs Page 72 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform 4 3 4 4 Modbus Communication Module Clearing a Fault Condition Typically if the OK LED on the front of the module turns red for more than ten seconds a hardware problem has been detected in the module or the program has exited To clear the condition follow these steps Turn off power to the rack Remove the card from the rack Verify that all jumpers are set correctly If the module requires a Compact Flash card verify that the card is installed correctly Re insert the card in the rack and turn the power back on Verify the configuration data being tran
70. and list The structure of this data area is as described in the data object section of the documentation 5878 5885 Command 2 Command 2 data set 6662 6669 Command 100 Command 100 data set 5 6 5 Misc Status Register Content Description 6670 Program Scan Count This value is incremented each time a complete program cycle occurs in the module 6671 6672 Product Code These two registers contain the product code of MCM 6673 6674 Product Version These two registers contain the product version for the current running software 6675 6676 Operating System These two registers contain the month and year values for the program operating system 6677 6678 Run Number These two registers contain the run number value for the currently running software 6679 Port 1 Command List This field contains the number of requests made Requests from this port to slave devices on the network 6680 Port 1 Command List This field contains the number of slave response Response messages received on the port 6681 Port 1 Command List This field contains the number of command errors Errors processed on the port These errors could be due to a bad response or command 6682 Port 1 Requests This field contains the total number of messages sent out of the port 6683 Port 1 Responses This field contains the total number of messages received on the port 6684 Port 1 Errors Sent This field contains the total number of message errors sent out of the port Pro
71. as 55 4 1 1 The Configuration DebUg MeNu eee eneeeeeeeeeeeeeeeeeeeeeaeeeeeeeaeeeeeeaeeeeeenaeeeeeeaas 55 4 1 2 Required Hardware cccccccccceceeeeeeeeseeeeee cece ceeeecaeeeceeeeeeeeeneaneeeeseeeseeencaneeeeeeeneeeeeees 56 4 1 3 Required Software sedalaadi anene a e aaa i a a aea d aaia a iE 57 4 1 4 Using the Configuration Debug Port sssssssssesiissesrrsseerrsstrrrsstirresttnrssttrnssttnnsstennssreeen 57 4315 Maini MENU inaenea a edna ata ates Peele 58 4 1 6 Database View Menu cccccccececsccceceeeeeeeeeeeceaeeeeeeeeeseccaeaeeeeeeeseescciaeeeeeeeeeeenanes 61 41 7 Backplane Menuai oian aa e ea aea aaa te Heavens 63 4 1 8 Protocol Serial MCM Menu ccecececcecccceeeeeeeceeeceeeeeeeeeesecaeaeeeeeeesessccueeeeeeeeeeeesenaneas 64 00 8409206 ProSoft Technology Inc May 22 2007 Page 3 of 121 MVI69 MCM CompactLogix Platform Contents Modbus Communication Module 41 9 Master Command Error List Menu c cccccceceeeeeeeeeeeeeeeeeeesesenacaeeeeeeeeeesensnsaeeeeees 65 4110 SerialPort MMe tssie2 45 acs a a a aa aaa E ana Aa E a aaa 66 41 17 Data ANZ a REE A EA T A AER 67 4 1 1 22Data AnalyZenr TIDS eor E E EE EE ET 70 4 2 LED Status IndicatorS sssasnssnnennnnnennnnnnnnnnnnn nunne nnnnnn nunne nnnm nunne nnmnnn nnmnnn nnmnnn nnne 72 4 3 Clearing a Fault Condition ss sssssssnnsennnnenneennennnennnnnnnnnnnnnnnnnnnnnnnn nnne nnnn nenne ennn anneanne 73 4 4 Trou
72. ave mode of the Modbus protocol When in slave mode the module can accept Modbus commands from a master to read write data stored in the module s internal registers This data is easily transferred to the CompactLogix processor s data registers Modbus Slave Driver Node Address 1 to 247 software selectable Status Data Error codes counters and port status available per configured slave port starting at memory register 4400 Modbus Function Codes 1 Read Output Status 2 Read Input Status 3 Read Multiple Data Registers 4 Read Input Registers 5 Write Single Bit 6 Write Single Data Register 15 Write Multiple Bits 16 Write Multiple Data Register Modbus Master Protocol Specifications The ports on the MVI69 MCM module can be individually configured as Master ports When configured in master mode the MCM module is capable of reading and writing data to remote Modbus devices enabling the CompactLogix platform to act as a SCADA sub master or a device data concentrator Modbus Master Driver Command List Up to 100 commands per master port each fully configurable for function slave address register to from addressing and word bit count Status Data Error codes available on an individual command basis In addition a slave status list is maintained per active Modbus master port Polling of Command List Configurable polling of command list including continuous and on change of data Modbus Function Cod
73. ay 22 2007 Bi 010 81817979 QO 58409206 a 13801020197 MSN xec comil 3 com MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module 5 Press the DIN rail mounting area of the controller against the DIN rail The latches will momentarily open and lock into place ON rail clasp m1 hy aig DIN rail clasp re 010 81817979 QO 38409206 a 13801020197 MSN xec ocomil 3 com Page 12 of 121 Start Here Ivivioy liviuM CompactLogix Platform Modbus Communication Module 1 5 Connect your PC to the Processor 1 Connect the right angle connector end of the cable to your controller at the communications port a Cm CHANNEL 1 CHANNEL 0 T 2 Connect the straight connector end of the cable to the serial port on your computer ProSoft Technology Inc i 01081817979 QQ 58409204 MA SAPARO 4 13801020197 MSN xc comml 3 com MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module 1 6 Download the Sample Program to the Processor gt To download the sample program from RSLogix 5000 to the CompactLogix processor Note The key switch on the front of the CompactLogix processor must be in the REM position 1 If you are not already online to the processor open the Communications menu and then choose Download RSLogix will establish communication with the processor 2 When communication is established RSLogix will open a confirmati
74. ble to connect to the port is as shown below RS 232 Application Port Cable No Handshaking DB 9 Male RS 232 Device ProSoft Technology Inc Page 99 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module RS 232 Modem Connection This type of connection is required between the module and a modem or other communication device RS 232 Application Port Cable Modem Connection DB 9 Male RS 232 Device RxD RxD RTS 7 nrs CTS CTS Signal Signal Common Common DTR DTR The Use CTS Line parameter for the port configuration should be set to Y for most modem applications RS 232 Null Modem Connection Hardware Handshaking This type of connection is used when the device connected to the module requires hardware handshaking control and monitoring of modem signal lines RS 232 Application Port Cable Hardware Handshaking DB 9 Male RS 232 Device TxD RxD RxD TxD RTS CTS CTS RTS Signal Signal Common 5 Common Page 100 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module RS 232 Null Modem Connection No Hardware Handshaking This type of connection can be used to connect the module to a computer or field device communication port RS 232 Application Port Cable No Handshaking DB 9 Male RS 232 Device mw jro RTS RTS CTS jumper must be installed if CTS line CTS Ea monitoring en
75. bleshooting s sssssunnsennunnennnnnnennnnnnnnnnnnnnnnnnnnnnnn nunnu nnnnnnnnnnnnn nnmnnn nnmnnn nnmnnn mnanaa na 73 5 REFERENCE voreres arane raa na S aa EAE e N ANa aed 75 5 1 Product SpeCifiCatiOn msanii dee aeee iandae anoddan aae na adean Eo dararia indes 75 5 1 1 Features and Benefits odioase a aa e aa at aa a ESEA 75 5 12 Generali peciicatlons soe erri a aaee a a aa ea a EAR Aee Aaaa a TEAs 75 5 1 3 Hardware Specifications rrei me aanaeio aaoi ae aaae ea a E A aa a ria aade eaaa 76 5 1 4 Functional Specifications sedrasi oaae eae ee a aaae eana aaae a Ar AEL Eat 76 5 2 Functional Overview sssssssesssnnennnnnnnnnnnnnnnnnnnnnnnn nnnm nnnm nunne nnn nnn nnana n ennnen nanne nanna 78 5 2 1 General COnGepts i riri etio m r aaeeei a eare a eaa e eden Ga tes 78 52 2 No rfmal Data Transferases esa aaao Aa aaa Eae aoda a aTa edi 81 52 387 Special BIOCKS iarsna at n eee e tates a r a a e Seated a eea e aea ea aaa eed 86 5 2 4 Command Control BIOCKS zs ini na aeeie aeaa aa aada eieaa akioa naei 89 5 2 5 Data Flow between MVI69 MCM Module and CompactLogix or MicroLogix Processor93 5 3 Cable Connections ciiccasccsicecetaicdeseelicccnristeceveascdedveiicsiavviselaavesd cduvtsiedecvsTavcaaversscueyts 97 5 3 1 RS 232 Configuration Debug Pa aei eee eeetee EREE E E EAE 97 B32 BROLA arn O E A EE O E E E N E 99 S e E e a A E E E E E al E E E A ag 101 GIA RS 485 ti ee RAR A E OE TOE 102 5 3 5 DB9 to RJ45 Adaptor Cable 14 ccccccccssccececs
76. configuration file image from module Ready to Send CONFIGURNTION FILE TRANSFERRED TO PC Press key to confirm configuration send Sending configuration file TRANSFERRING CONFIGURATION FILES FROM ProSoft NODULE TO PC The Yaoden protocol is used to send the file from the module Select the RECEIVE menu option and destination directory Building configuration file image from module Ready to Send CONFIGURATION FILE TRANSFERRED TO PC Cormected 0 00 07 feta detect SNO BMI The configuration file is now on your PC at the location you specified 8 You can now open and edit the file in a text editor such as Notepad When you have finished editing the file save it and close Notepad ProSoft Technology Inc Page 49 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 2 6 4 Transferring the Configuration File to the Module Perform the following steps to transfer a configuration file from your PC to the module 1 Connect your PC to the Configuration Debug port of the module using a terminal program such as HyperTerminal Press to display the main menu e HyperTerminal Ee Eat Yew Ca Tranter tho Dw 3 2S g MODULE MENU Display Menu A Data Analyzer B Block Transfer Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Configuration V Version Information W Ware Boot Module Esc Exit Progran
77. d will be set to a state of one in this initial step If the master port fails to communicate with a slave device retry count expired on a command the master will set the state of the slave to a value of 2 in the status table This suspends communication with the slave device for a user specified scan count Error Delay Count parameter in the configuration file Each time a command in the list is scanned that has the address of a suspended slave the delay counter value will be decremented When the value reaches zero the slave state will be set to one In order to read the slave status table refer to the sample ladder logic The ladder logic must send a special block to the module to request the data Each port has a specific set of blocks to request the data as follows Block ID Description 3002 Request status for slaves 0 to 59 for Port 1 3003 Request status for slaves 60 to 119 for Port 1 3004 Request status for slaves 120 to 179 for Port 1 3005 Request status for slaves 180 to 239 for Port 1 3006 Request status for slaves 240 to 255 for Port 1 3102 Request status for slaves 0 to 59 for Port 2 3103 Request status for slaves 60 to 119 for Port 2 3104 Request status for slaves 120 to 179 for Port 2 3105 Request status for slaves 180 to 239 for Port 2 3106 Request status for slaves 240 to 255 for Port 2 The format of these blocks is as shown below Write Block Request Slave Status Offset Descripti
78. dem file transfers Page 46 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module 2 6 3 Transferring the Configuration File to Your PC 1 Connect your PC to the Configuration Debug port of the module using a terminal program such as HyperTerminal Press to display the main menu e HyperTerminal Ble Edt Yew Ca Tranter teo owe 3 2S g MODULE MENU Display Menu A Data Analyzer B Block Transfer Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Confiauration V Version Information W Ware Boot Module Esc Exit Progran 2 Press S Send Module Configuration The message Press Y key to confirm configuration send is displayed at the bottom of the screen Bie Edt ew Cal Tranter to oe 3 2S g MODULE MENU Display Menu A Data Analyzer B Block Transfer Statistics C Module Configuration D Database View R Receive Module Configuration Send Module Confiauration V Version Information W Ware Boot Module Esc Exit Progran Press Y key to confirm configuration send Connected 0 00 07 feta detect STOO EMI nu ProSoft Technology Inc Page 47 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 3 Press Y The screen now indicates that the module is ready to send
79. ds of your application and copy the updated configuration to the module Example configuration files are provided on the CD ROM Refer to the Modifying the Example Configuration File section later in this chapter for more information on the configuration files 3 Modify the example ladder logic to meet the needs of your application and copy the ladder logic to the processor Example ladder logic files are provided on the CD ROM Note If you are installing this module in an existing application you can copy the necessary elements from the example ladder logic into your application The rest of this chapter describes these steps in more detail The first step in setting up the processor ladder file is to define the I O type module to the system Start RSLogix 500 and follow these steps 1 In RSLogix open your existing application or start a new application depending on your requirements ProSoft Technology Inc Page 29 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 2 Double click the I O Configuration icon located in the Controller folder in the project tree This action opens the I O Configuration dialog box _ 1 0 Configuration Mia Ei Filter far 10 x Pat Description _ _ Read I0 Config al 1769 0416 16 Dutput 120 240 VAC 1769 088 8 Dutput High Current 24 VDC 1769 0816 16 Dutput 24 VDC Source 1769 0B16P 16 Dutput 24 VDC Source w Protecti
80. e The output image for the module may be set to 61 121 or 241 words depending on the block transfer size parameter set in the configuration file ProSoft Technology Inc Page 79 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module The following illustration shows the data transfer method used to move data between the CompactLogix or MicroLogix processor the MVI69 MCM module and the MODBUS network Processor MVI69 MCM Module Processor Controller Tags Status Ladder Logic transfers data from module s Module s i lt _ Input Image Internal input image to Database data areas in Read Data the processor 4 MCM Write Data T gt Ladder logic Maser Port transfers data Driver Drivers from Logic gt processor 7 gt Output Image E aa Special data areas to ea A Control output image Slave Blocks ee pd gt ogic As shown in the diagram above all data transferred between the module and the processor over the backplane is through the input and output images Ladder logic must be written in the CompactLogix or MicroLogix processor to interface the input and output image data with data defined in the Controller Tags All data used by the module is stored in its internal database The following illustration shows the layout of the database Module s Internal Database Structure 5000 registers for user data
81. e detail ProSoft Technology Inc Rh May 22 2007 010 81817979 QQ 58409206 a 13801020197 MSN xc comil 3 com MVI69 MCM CompactLogix Platform Modbus Communication Module Instaning ana Vonfiguring the Module The first step in installing and configuring the module is to define the module to the system Select I O Configuration in the Controller Organization List and then click the right mouse button to open a shortcut menu On the shortcut menu choose New Module m D a Controller MvI69 Em a Tasks aa Oo J Motion Groups Oo Trends J Data Types HHR mA a aOR 48 J 1 0 Configuration Controller Tags Controller Fault Handler Power Up Handler MainTask E MainProgram Program Tags E MainRoutine B ReadData B writeData Unscheduled Programs Ungrouped Axes User Defined Strings Predefined Module Defined 1 1769 L35E Ethernet Port LocalENB B 1 1769 1 Cut Cirl X Copy Ctrl C Paste Cirit Delete Del Cross Reference Ctril E Print ChitP Properties Page 20 of 121 H A i 010 81817979 a 13801020197 MSN xec comil 3 com QQ 38409206 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module This action opens the Select Module Type dialog box Select Module Type Type 1769 MODULE Maj
82. e written or read Count The number of words to be transferred 1 to 125 on FC 3 4 or 16 Select the number of bits on FC 1 2 15 As the list is read in from the processor and as the commands are processed an error value is maintained in the module for each command This error list can be transferred to the processor The errors generated by the module are displayed in the following tables Note 125 words is the maximum count allowed by the MODBUS protocol Some field devices may support less than the full 125 words Check with your device manufacturer for the maximum count supported by your particular slave Transferring the Command Error List to the Processor You can transfer the command error list to the processor from the module database To place the table in the database set the Command Error Pointer parameter to the database location desired To transfer this table to the processor make sure that the Command Error table is in the database area covered by the Read Data Standard MODBUS Protocol Errors Code Description Illegal Function Illegal Data Address Illegal Data Value Failure in Associated Device Acknowledge O n R w nyn Busy Rejected Message Page 96 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform 5 3 Modbus Communication Module Module Communication Error Codes Code Description 1 CTS modem con
83. ead and write commands issued by a master on the MODBUS network ProSoft Technology Inc Page 93 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Step Description 1 The MODBUS slave port driver receives the configuration information from the user defined CFG file that is stored on the MVI69 MCM module This information configures the serial port and define the slave node characteristics Additionally the configuration information contains data that can be used to offset data in the database to addresses requested in messages received from master units 2 A Host device such as a Modicon PLC or an MMI package issues a read or write command to the module s node address The port driver qualifies the message before accepting it into the module 3 After the module accepts the command the data is immediately transferred to or from the internal database in the module If the command is a read command the data is read out of the database and a response message is built If the command is a write command the data is written directly into the database and a response message is built 4 After the data processing has been completed in Step 2 the response is issued to the originating master node 5 Counters are available in the Status Block that permit the ladder logic program to determine the level of activity of the Slave Driver Review Module Set Up for a complete list of the
84. efer to the configuration file Function 15 When the module receives a function code 15 when in pass through mode the module will write the data using block ID 9959 for multiple bit data First the bit mask clears the bits to be updated This is accomplished by ANDing the inverted mask with the existing data Next the new data ANDed with the mask is ORed with the existing data This protects the other bits in the INT registers from being affected This function can only be used if the Block Transfer Size parameter is set to 120 or 240 words Offset Description Length in words 0 0 1 1 9959 1 2 Write Block ID 1 3 Number of Words 1 4 Word Address 1 5 to 55 Data 50 56 to 105 Mask 50 106 to 180 Spare 15 The ladder logic will be responsible for parsing and copying the received message and performing the proper control operation as expected by the master Page 92 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module device The processor must then respond to the pass through control block with a write block with the following format Offset Description Length in words 0 9959 1 1ton Spare This will inform the module that the command has been processed and can be cleared from the pass through queue Warm Boot This block is sent from the CompactLogix or MicroLogix processor to the module output image when the module
85. efined structure depending on the data content and the function of the data transfer as defined in the following topics 5 2 2 Normal Data Transfer Normal data transfer includes the paging of the user data found in the module s internal database in registers 0 to 4999 and the status data These data are transferred through read input image and write output image blocks The structure and function of each block is discussed in the following topics Read Block These blocks of data transfer information from the module to the processor The structure of the input image used to transfer this data is shown below Offset Description Length in words 0 Read Block ID 1 1 Write Block ID 1 2 to n 1 Read Data n where n 60 120 or 240 depending on the Block Transfer Size parameter refer to the configuration file ProSoft Technology Inc Page 81 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module The Read Block ID is an index value used to determine the location of where the data will be placed in the processor controller tag array of module read data The number of data words per transfer depends on the configured Block Transfer Size parameter in the configuration file possible values are 60 120 or 240 The Write Block ID associated with the block requests data from the processor Under normal program operation the module sequentially sends read blocks and requests write b
86. erify that RSLinx is not controlling the COM port Refer to Disabling the RSLinx Driver for the Com Port on the PC page 98 3 Verify that your communication software is using the correct settings for baud rate parity and handshaking 4 Oncomputers with more than one serial port verify that your communication program is connected to the same port that is connected to the module If you are still not able to establish a connection you can contact ProSoft Technology Technical Support for further assistance ProSoft Technology Inc Page 57 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module 4 1 5 Main Menu When you first connect to the module from your computer your terminal screen will be blank To activate the main menu press the key on your computer s keyboard If the module is connected properly the following menu will appear on your terminal screen MUI69 MCM MENU Display Menu U Version Information D Database Menu C Clear diagnostic data B Backplane Menu Protocol_Serial_MCM 1 1 Protocol_Serial_MCM 2 Transfer Configuration from Unit to PC R Transfer Configuration from PC to Unit W Warm Boot Module Esc Exit Program Caution Some of the commands available to you from this menu are designed for advanced debugging and system testing only and can cause the module to stop communicating with the processor or with other devices resulting in p
87. es 1 Read Output Status 2 Read Input Status 3 Read Multiple Data Registers 4 Read Input Registers 5 Write Single Bit 6 Write Single Data Register 15 Write Multiple Bits 16 Write Multiple Data Register ProSoft Technology Inc Page 77 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module 5 2 Functional Overview This section provides an overview of how the MVI69 MCM module transfers data using the MCM protocol You should understand the important concepts in this chapter before you begin installing and configuring the module 5 2 1 General Concepts The following discussion explains several concepts that are important for understanding the operation of the MVI69 MCM module About the MODBUS Protocol MODBUS is a widely used protocol originally developed by Modicon in 1978 Since that time the protocol has been adopted as a standard throughout the automation industry The original MODBUS specification uses a serial connection to communicate commands and data between master and slave devices on a network Later enhancements to the protocol allow communication over other types of networks MODBUS is a master slave protocol The master establishes a connection to the remote slave When the connection is established the master sends the MODBUS commands to the slave The MVI69 MCM module works both as a master and as a slave The MVI69 MCM module acts as an input output module between de
88. et to less than 1 millisecond Values between 1 and 10 milliseconds should work with most applications 2 1 1 After you Complete the Module Setup After you complete the module setup the module will appear in the Controller Organization list The data required for the module will be defined to the application and objects will be allocated in the Controller Tags data area as shown in the following illustration I Controller MVI69MCM A Controller Tags Controller Fault Handler Power Up Handler Tasks a MainTask 3 MainProgram A Program Tags E MainRoutine B ReadData B WriteData Unscheduled Programs 5 Motion Groups Ungrouped Axes J Trends 3 Data Types Of User Defined OR Strings H E Predefined H E Module Defined 5 8 1 0 Configuration 1 1769 L35E Ethernet Port LocalENB a CompactBus Local 1 1769 MODULE MVI69 Type 1769 L35E CompactLogix5335E Contro Description Sample Ladder for MVI69 MCM Slot 0 Major Fault Minor Fault Page 26 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module The next step is to define the User Defined Data Types to be used with the module Copy these data types from the example ladder logic if you are not using the example They will be defined if you are starting from the example ladder logic The Controller Organi
89. fer is complete the module s configuration debug screen indicates that the module has reloaded program values and displays information about the module e HyperTerminal Bie pd Yew Gi Inte io D 3 ca ge Receiving configuration file TRANSFERRING CONFIGURATION FROM PC TO ProSoft MODULE Using the Ymodem file transfer protocol Select the SEND menu option and transfer the configuration file cee FILE TRANSFERRED FROM PC UNIT Reloading Program Values Read Conficuration 8 Your module now contains the new configuration Page 52 of 121 ProSoft Technology Inc May 22 2007 Ladder Logic MVI69 MCM CompactLogix Platform Modbus Communication Module 3 Ladder Logic Ladder logic is required for application of the MVI69 MCM module Tasks that must be handled by the ladder logic are module data transfer special block handling and status data receipt Additionally a power up handler may be needed to handle the initialization of the module s data and to clear any processor fault conditions The sample ladder logic on the ProSoft Solutions CD ROM is extensively commented to provide information on the purpose and function of each rung For most applications the sample ladder will work without modification ProSoft Technology Inc Page 53 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Ladder Logic Modbus Communication Module Page 54 of 121 ProSoft Technology Inc May 22 2007
90. g upon the communication network used and the expected response time of the slowest device on the network 5063 Retry Count 5064 Error Delay Counter This parameter specifies the number of times a command will be retried if it fails If the master port does not receive a response after the last retry the slave devices communication will be suspended on the port for Error Delay Counter scans This parameter specifies the number of polls to skip on the slave before trying to re establish communications After the slave fails to respond the master will skip commands to be sent to the slave the number of times entered in this parameter 5065 Spare 5066 Spare 5067 5068 Spare Spare 5069 Spare Page 110 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module 5 6 3 Port 1 Commands Register Content Description 5070 5777 Command 1 This set of registers contains the parameters for the first command in the master command list The structure of this data area is as described in the data object section of the documentation 5078 5085 Command 2 Command 2 data set 5852 5859 Command 100 Command 100 data set 5 6 4 Port 2 Commands Register Content Description 5870 5877 Command 1 This set of registers contains the parameters for the first command in the master comm
91. g words make sure you are using an even value in the Count Field Odd values may generate unexpected results Slave Node 1 to 255 0 is a broadcast This parameter specifies the MODBUS slave node address on the network to be considered Values of 1 to 255 are permitted Most MODBUS devices only accept an address in the range of 1 to 247 so be careful If the value is set to zero the command will be a broadcast message on the network The MODBUS protocol permits broadcast commands for write operations Do not use this node address for read operations Page 44 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module Command Parameter Range Description Function Code 1 2 3 4 5 6 15 16 This parameter specifies the MODBUS function to be executed by the command These function codes are defined in the MODBUS protocol The following table defines the purpose of each function supported by the module More information on the protocol is available from the Schneider Electric web site www modicon com MODBUS Description Function Code 1 Read Coil Status Read Input Status Read Holding Registers Read Input Registers Single Coil Write Single Register Write 5 Multiple Coil Write 16 Multiple Register Write aIo AJN Device Address This parameter specifies the starting
92. ge additional serial port driver settings Viewing Error and Status Data Press E to display the error status data for the module 4 1 9 Master Command Error List Menu Use this menu to view the command error list for the module Press to view a list of commands available on this menu Protocol Menu m Command List Menu en Display Menu gt Redisplays reteshes this menu Ml Redisplays last selected page ofdata SS P Previous Page Goes back one page of data N Next Page Goes forward one page of data Mi Main Menu a Oy Goes up one level to main menu Show Again Redisplaying the Current Page Press S to display the current page of data Viewing the Previous 20 Commands Press to display data for the previous 20 commands Viewing the Previous Page of Commands Press P to display the previous page of commands Viewing the Next 20 Commands Press to display data for the next 20 commands ProSoft Technology Inc Page 65 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Viewing the Next Page of Commands Press N to display the next page of commands Returning to the Main Menu Press M to return to the Main Menu 4 1 10 Serial Port Menu Press S to open the Serial Port menu Use this command to view and change additional serial port drive
93. he total number of message errors sent out of the Sent port 6685 Port 1 Errors This field contains the total number of message errors received on Received the port 6686 Port 2 Command This field contains the number of requests made from this port to List Requests slave devices on the network 6687 Port 2 Command This field contains the number of slave response messages received List Response on the port 6688 Port 2 Command This field contains the number of command errors processed on the List Errors port These errors could be due to a bad response or command 6689 Port 2 Requests This field contains the total number of messages sent out the port 6690 Port 2 This field contains the total number of messages received on the Responses port 6691 Port 2 Errors This field contains the total number of message errors sent out of the Sent port 6692 Port 2 Errors This field contains the total number of message errors received on Received the port 6693 Read Block This field contains the total number of read blocks transferred from Count the module to the processor 6694 Write Block This field contains the total number of write blocks transferred from Count the processor to the module 6695 Parse Block This field contains the total number of blocks successfully parsed that Count were received from the processor 6696 Command Event This field contains the total number of command event blocks Block Count received from the processor 6697 Command
94. imal format as oe aS a o h Ret to the Main M a peene OOOO O ProSoft Technology Inc Page 67 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Data Analyzer Node Selected DATA ANALYZER VIEW NENU T Dieplay Menu lefelect Port 1 Select Port 2 5 1 nSec Ticks 6 5 nSec Ticks 2 18 mec Ticks Bho mec Licks tics Fornas A ASGIT Fornat hain Menu Fort 1 Fornat HEX Tick 18 Important When in analyzer mode program execution will slow down Only use this tool during a trouble shooting session Before disconnecting from the Config Debug port please be sure to press M to return to the main menu and disable the data analyzer This action will allow the module to resume its normal operating mode Analyzing Data for Port 1 Press 1 to display I O data for Port 1 in the Data Analyzer The following illustration shows an example of the Data Analyzer output 11 J1 Nt l he ie SF Tas Trea Troa TTea Tize Traa TEZ DTteL Te ReS2ag ASASSCEBSCib gt lt k H Tea7ted iteastan CE TONN i Ta4Ttia iTazTr6a gt 17 GA 1 68 11891189 112D11 ao ited tr RITELUTCEMSCHIS EE SG gt _IT_ R 3_1T T _1T_ 68 HAA DLE BCP D gt CHIC 2D 340 DCG CBC CRC 1A T IT 27 4 31108 2 16 iS It 631 oct II Analyzing Data for Port 2 Press 2 to display I O data for Port 2 in the Data Analyzer Displaying Timing Marks in the Data Analyzer You can display ti
95. ion Dimensions Standard 1769 Single slot module Current Load 800 mA max 5 VDC Power supply distance rating of 2 Operating Temp 0 to 60 C 32 to 140 F Storage Temp 40 to 85 C 40 to 185 F Relative Humidity 5 to 95 non condensing LED Indicators Power and Module Status Application Status Serial Port Activity Serial Activity and Error Status CFG Port CFG RJ45 DB 9F with supplied cable RS 232 only No hardware handshaking App Ports P1 P2 Serial modules RS 232 RS 485 or RS 422 jumper selectable RJ45 DB 9F with supplied cable RS 232 handshaking configurable 500V Optical isolation from backplane Shipped with Unit RJ45 to DB 9M cables for each port 6 foot RS 232 configuration Cable 5 1 4 Functional Specifications Type Specifications Communication parameters Port 1 Baud Rate 110 to 38 4K baud configurable Port 2 3 Baud Rate 110 to 115K baud Stop Bits 1 or 2 Data Size 5 to 8 bits Parity None Odd Even RTS Timing delays 0 to 65535 ms Modbus Modes RTU Mode binary with CRC 16 ASCII mode with LRC error checking Floating Point Data Floating point data movement supported including configurable support for Enron implementation Page 76 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Modbus Slave Protocol Specifications The ports on the MVI69 MCM module can be individually configured to support the sl
96. is command if you must force the module to re boot Exiting the Program Caution Some of the commands available to you from this menu are designed for advanced debugging and system testing only and can cause the module to stop communicating with the processor or with other devices resulting in potential data loss or other failures Only use these commands if you are specifically directed to do so by ProSoft Technology Technical Support staff Some of these command keys are not listed on the menu but are active nevertheless Please be careful when pressing keys so that you do not accidentally execute an unwanted command Press Esc to restart the module and force all drivers to be loaded The module will use the configuration stored in the module s Flash ROM to configure the module Page 60 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module 4 1 6 Database View Menu Press D from the Main Menu to open the Database View menu Use this menu command to view the current contents of the module s database Press to view a list of commands available on this menu M Main Menu D Database Menu a Display Menu Redisplays refeshes this menu e 0 3 Pages D to 3000 P Selects page 0 1000 2000 or 3000 Show Again F Redisplays last selected page ofdata k
97. issuing each command This delay value is not applied to retries 5031 Command Error Pointer This parameter sets the address in the internal MODBUS database where the command error will be placed If the value is set to 1 the data will not be transferred to the database The valid range of values for this parameter is 1 to 4999 ProSoft Technology Inc May 22 2007 Page 107 of 121 MVI69 MCM CompactLogix Platform Modbus Communication Module Reference Register Content Description 5032 Response Timeout This parameter represents the message response timeout period in 1 millisecond increments This is the time that a port configured as a master will wait before re transmitting a command if no response is received from the addressed slave The value is set depending upon the communication network used and the expected response time of the slowest device on the network 5033 Retry Count This parameter specifies the number of times a command will be retried if it fails If the master port does not receive a response after the last retry the slave devices communication will be suspended on the port for Error Delay Counter scans 5034 Error Delay Counter 5035 Spare This parameter specifies the number of polls to skip on the slave before trying to re establish communications After the slave fails to respond the master will skip commands to be sent to the slave the number of times entered in
98. locks For example if three read and two write blocks are used with the application the sequence will be as follows R1W1 R2W2 R3W1 R1W2 R2W1 R3W2 R1W1 This sequence will continue until interrupted by other write block numbers sent by the controller or by a command request from a node on the MODBUS network or operator control through the module s Configuration Debug port The following example shows a typical backplane communication application If the backplane parameters are configured as follows Read Register Start 0 Read Register Count 480 Write Register Start 480 Write Register Count 480 The backplane communication would be configured as follows Processor MVI69 Module 0 Read Data lt lt 480 Write Data e naua 960 Database address 0 to 479 will be continuously transferred from the module to the processor Database address 480 to 959 will continuously be transferred from the processor to the module The Block Transfer Size parameter basically configures how the Read Data and Write Data areas are broken down into data blocks 60 120 or 240 Page 82 of 121 ProSoft Technology Inc May 22 2007 Reference If Block Transfer Size 60 If Block Transfer Size 120 Processor Processor Read Block 1 Write Block 1 Read Block 1 Read Block 2 Read Block 3 Read Block 4 Write Block 1 Write Block 2 MVI69 MCM CompactLogix Platform Modbus Co
99. lue image to the floating point file For multiple values increase the count field ENRON Floating Point Support Many manufacturers have implemented special support in their drivers to support what is commonly called the Enron version of the MODBUS protocol In this implementation register addresses gt 7000 are presumed to be floating point values The significance to this is that the count field now becomes a number of values field In floating point format each value represents two words ProSoft Technology Inc Page 37 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module Configuring the Floating Point Data Transfer A common question when using the module as a Modbus Master is how floating point data is handled This really depends on the slave device and how it addresses this application Just because your application is reading writing floating point data does not mean that you must configure the Float Flag Float Start parameters within the module These parameters are only used to support what is typically referred to as Enron or Daniel Modbus where one register address must have 32 bits or one floating point value Below is an example Example 1 Modbus Address Data Type Parameter 47101 32 bit REAL TEMP Pump 1 47102 32 bit REAL Pressure Pump 1 47103 32 bit REAL TEMP Pump 2 47104 32 bit REAL Pressure Pump 2 With the module c
100. mal or unusually heavy use neglect abuse alteration b failure of Customer to adhere to ProSoft s specifications or instructions c any associated or complementary equipment software or user created programming including but not limited to programs developed with any IEC1131 3 programming languages C for example and not furnished by ProSoft d improper installation unauthorized repair or modification e improper testing or causes external to the product such as but not limited to excessive heat or humidity power failure power surges or natural disaster compatibility with other hardware and software products introduced after the time of purchase or products or accessories not manufactured by ProSoft all of which components software and products are provided as is In no event will ProSoft be held liable for any direct or indirect incidental consequential damage loss of data or other malady arising from the purchase or use of ProSoft products ProSoft s software or electronic products are designed and manufactured to function under adverse environmental conditions as described in the hardware specifications for this product As with any product however through age misapplication or any one of many possible problems the device may require repair ProSoft warrants its products to be free from defects in material and workmanship and shall conform to and perform in accordance with published technical specifications and
101. mand 3 Presuming successful processing by the node specified in the command a response message is received into the Master driver for processing 4 Data received from the node on the network is passed into the module s internal database assuming a read command 5 Status is returned to the CompactLogix or MicroLogix processor for each command in the Master Command List Refer to Module Set Up for a complete description of the parameters required to define the virtual MODBUS master port ProSoft Technology Inc Page 95 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Important You must take care when constructing each command in the list to ensure predictable operation of the module If two commands write to the same internal database address of the module the results will be invalid All commands containing invalid data are ignored by the module Master Command List In order to function in the Master Mode you must define the module s Master Command List This list contains up to 100 individual entries with each entry containing the information required to construct a valid command A valid command includes the following items Command enable mode 0 disabled 1 continuous or 2 conditional Slave Node Address Command Type Read or Write up to 125 words 2000 bits per command Database Source and Destination Register Address The addresses where data will b
102. ming marks for a variety of intervals in the data analyzer screen These timing marks can help you determine communication timing characteristics Key Interval 5 1 mSec ticks 6 5 mSec ticks 7 10 mSec ticks 8 50 mSec ticks 9 100 mSec ticks Removing Timing Marks in the Data Analyzer Press 0 to turn off timing marks in the Data Analyzer screen Page 68 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module Viewing Data in Hexadecimal Format Press H to display the data on the current page in hexadecimal format Viewing Data in ASCII Text Format Press A to display the data on the current page in ASCII format This is useful for regions of the database that contain ASCII data Starting the Data Analyzer Press B to start the data analyzer After the key is pressed all data transmitted and received on the currently selected port will be displayed An example display is shown below lt R gt lt 81 gt lt 03 gt lt 00 gt lt 66 gt lt 06 gt lt 0A gt lt C5 gt lt CD gt lt R gt _TT_ 61 63 14 80 06 06 00 06 08 TT_ 66 68 66 66 66 69 60 66 66 60 60 66 60 G0 A3 67 _TT lt R gt lt 61 gt lt 83 gt lt 68 gt lt 06 gt lt 66 gt lt 6A gt lt C5 gt lt CD gt lt R gt _TT_ 61 63 14 66 60 66 68 66 60 66 48 66 66 66 66 66 66 60 TT _ 6
103. mmunication Module MVI69 Module MVI69 Module 60 120 180 240 300 360 420 480 540 120 240 360 480 600 720 ProSoft Technology Inc May 22 2007 Page 83 of 121 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module If Block Transfer Size 240 Processor MVI69 Module Read Block 1 Read Block 2 Write Block 1 Write Block 2 Write Block These blocks of data transfer information from the processor to the module The structure of the output image used to transfer this data is shown below Offset Description Length in words 0 Write Block ID 1 1ton Write Data n where n 60 120 or 240 depending on the Block Transfer Size parameter refer to the configuration file The Write Block ID is an index value used to determine the location in the module s database where the data will be placed Initialize Output Data When the module performs a restart operation it will request blocks of output data from the processor to initialize the module s output data Use the Initialize Output Data parameter in the configuration file to bring the module to a known state after a restart operation The structure of the block used to request the data is displayed in the following table Offset Description Length 0 4000 to 4083 for n 60 1 1 4000 to 4083 for n 60 1 2ton Spare n Page 84 of 121 ProSoft Technology Inc May 22
104. mode In this mode write messages sent to a slave port are passed directly through to the processor It is the responsibility of the ladder logic to process the message received using this feature Two data objects are required for this mode a variable to hold the length of the message and a buffer to hold the message This information is passed from the module to the processor using a block identification code of 9996 Word two of this block contains the length of the message and the message starts at word 3 Other controller tags are required to store the controlled values contained in these messages The MODBUS protocol supports controller of binary output coils functions 5 and 15 and registers functions 6 and 16 ProSoft Technology Inc Page 35 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 2 4 2 5 Command List Overview In order to interface the MVI69 MCM module with MODBUS slave devices you must construct a command list The commands in the list specify the slave device to be addressed the function to be performed read or write the data area in the device to interface with and the registers in the internal database to be associated with the device data The master command list supports up to 100 commands The command list is processed from top command 0 to bottom A poll interval parameter is associated with each command to specify a minim
105. n 5057 Out in Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network requests for MODBUS function 1 5 or 15 commands For example if the value is set to 100 an address request of 0 will correspond to register 100 in the database 5058 Holding Reg Offset This parameter specifies the offset address in the internal MODBUS database that is to be used with network requests for MODBUS function 3 6 or 16 commands For example if a value of 50 is entered a request for address 0 will correspond to the register 50 in the database 5059 Command Count This parameter specifies the number of commands to be processed by the MODBUS master port 5060 Minimum Command Delay This parameter specifies the number of milliseconds to wait between issuing each command This delay value is not applied to retries 5061 Command Error Pointer This parameter sets the address in the internal MODBUS database where the command error will be placed If the value is set to 1 the data will not be transferred to the database The valid range of values for this parameter is 1 to 4999 5062 Response Timeout This parameter represents the message response timeout period in 1 millisecond increments This is the time that a port configured as a master will wait before re transmitting a command if no response is received from the addressed slave The value is set dependin
106. n file Important The slaves are enabled by default Therefore this block should only be used after Block 3000 or 3001 to re enable the slaves 5 2 4 Command Control Blocks Command control blocks are special blocks used to control the module or request special data from the module The current version of the software supports five command control blocks event command control command control pass through control blocks warm boot and cold boot Event Command Event command control blocks send MODBUS commands directly from the ladder logic to one of the master ports The format for these blocks is displayed below Write Block Event Command Offset Description Length in words 0 1000 1255 or 2000 2255 1 1 Internal DB Address 1 2 Point Count 1 3 Swap Code 1 4 Function Code 1 5 Device Address 1 6 ton Spare n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file The block number defines the MODBUS port to be considered Block 1000 commands are directed to Port 1 and block 2000 commands are directed to Port 2 The slave address is represented in the block number in the range of 0 to 255 The sum of these two values determines the block number The parameters passed with the block construct the command The Internal DB Address parameter specifies the module s database location to associate with the command The Point Count pa
107. neeeessneeeeecnneeeeeesnneeeesssneeeeesnieeeenss 102 5 4 MCM Database Defimition cc ccccceseeeeeseseeeeeeeneeeeeseseeeeesneneeneeseseenseseeceeenseesenes 103 5 5 Status Data Definition assssnnennnnennnnnnnnnnnnnnnnnn nunne nunne nunne nunne nnmnnn nnmnnn nnmnnn nnne 103 5 6 Configuration Data Definition ssssssusseunnunnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnna 105 5 6 1 PORE Ee E o EAEE AE a EAE T 106 5 6 2 T 8 EAA 11 EEEE NE NE E AAT 108 50 3 Port T Command Sneinen aea a a nen ee Ae ieee tee 111 564 Port 2 COMM ad S a aa a aa a ea eee ate aee aa aik 111 5 6 5 Mis StatU Sentein aar ei neni ein ae le aie ee ae 111 5 6 6 Command Control iiiccc alacant a a ented in aiid aan 113 SUPPORT SERVICE amp WARRANTY cccsscceceseeeeeeeseeeeeenseeeeeensnnaeeeenneaeeeensaeeeenseaeeeenseneeeenss 115 Module Service and Repair ccccccccesccesseeeesneeeeeeeeescaeseneeeeneeeeeeaeeeseaesaseaeenseeesssaeseaeaeenseeeeeaees 115 General Warranty Policy Terms and Conditions csssecceseeeseseseseeenseeeeeeeeseseeeenseeeeeeees 116 Limitation of Liability 2 02 ccccctecccccccectesetcecedencteteceaecencdeteustecesecesedecducnceceseusnecesucesccesunsnecesueeczsuaes 117 RMA Pro ed U O a e ar cd cecceesesteieccceteenst sheasedetteghestandeeddetesnssaatadsctebesadestasGesmecestvcevaasacs 117 UN DEX Soinia paan a EA EEE AAEE A ETRE AEAEE S 119 amp A Pags 4 ote 36 010 8181797
108. nt format The programming necessary to move the floating point data is to take advantage of the COP command that exists in the Compact Logix and SLC processors The COP command is unique in the CPX SLC data movement commands in that it is an untyped function meaning that no data conversion is done when moving data between file types that is it is an image copy not a value copy Page 36 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module The structure of the COP command to move data from a Floating Point file into an integer file something you would do to move floating point values to the module is as follows co Copy File Source FloatWriteData Dest MCM1 WriteData 0 2 COP Source Dest N14 0 Length This command will move one floating point value in two 16 bit integer images to the integer file For multiple floating point values increase the count field by a factor of 2 per floating point value The structure of the COP command to move data from an Integer file to a Floating Point file something you would do to receive floating point values from the module is as follows COP Copy File Source MCM1 ReadData 0 Dest FloatReadData 0 Length 1 COP Copy File Source N13 0 Dest F8 0 Length l This command will move two 16 bit integer registers containing one floating point va
109. o 1769 0832 32 Dutput High Density 24 VDC 1769 0F2 Analog 2 Channel Output Module 1 769 0F8C Analog 8 Chan Current Output Analog 8 Chan Voltage Output 16 Output 24 VDC Sink 8 Output Relay 16 Output Relay 8 Output Isolated Relay DeviceNetScanner DPI SCANport Module Power Supply Power Supply Power Supply Power Supply xl Any 1769 PowerSupply Any 1769 UnPowered Cable Hide All Cards Other Requires 1 0 Card Type ID 3 On the I O Configuration dialog box select Other Requires I O Card Type ID at the bottom of the list in the right pane and then double click to open the Module dialog box 4 Enter the values shown in the following illustration to define the module correctly for the MicroLogix processor and then click OK to save your configuration Module 1 OTHER 1 0 Module ID Code 89 Lx Expansion General Configuration Current Cards Available Vendor ID EE Product Type 12 Product Code Series Major Rev MinorRev JA Output Words E ra Data Length 89 fA Input Words 62 61 r Ignore Configuration Error Page 30 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module The input words and output words parameter will depend on the Block Transfer Size parameter you specify in the configuration file Use the values from the following table Block Transfer Size
110. o Adapters DB9 Female to Screw Terminal For RS422 or RS485 Connections to Port 1 and 2 of the Module 1 ProSoft Contains sample programs utilities and Solutions documentation for the MVI69 MCM module CD If any of these components are missing please contact ProSoft Technology Support for replacement parts E A Page 8 of 121 tH 010 81817979 QO 58409206 au 13801020197 MSN xc comml 3 com Start Here Ivivioy iviuM CompactLogix Platform Modbus Communication Module 1 3 Setting Jumpers When the module is manufactured the port selection jumpers are set to RS 232 To use RS 422 or RS 485 you must set the jumpers to the correct position The following diagram describes the jumper settings rs232 SS RS422 rs485 e z RS232 RS232 E RS422 E E rsass e I RS422 o rsaz2 RS485 E HE RS485 The Setup Jumper acts as write protection for the module s flash memory In write protected mode the Setup pins are not connected and the module s firmware cannot be overwritten Do not jumper the Setup pins together unless you are directed to do so by ProSoft Technical Support ProSoft Technology Inc May 22 2007 bE 01081817979 OO 58409204 A 13801020197 MSN xc comml 3 com MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module 1 4 In
111. oating point data access functionality is to be implemented If the float flag is set to 1 MODBUS functions 3 6 and 16 will interpret floating point values for registers as specified by the two following parameters 5013 Float Start This parameter defines the first register of floating point data All requests with register values greater than or equal to this value will be considered floating point data requests This parameter is only used if the Float Flag is enabled 5014 Float Offset This parameter defines the start register for floating point data in the internal database This parameter is only used if the Float Flag is enabled 5015 Protocol This parameter specifies the MODBUS protocol to be used on the port Valid protocols are 0 MODBUS RTU and 1 MODBUS ASCII 5016 Baud Rate This is the baud rate to be used on the port Enter the baud rate as a value For example to select 19K baud enter 19200 Valid entries are 110 150 300 600 1200 2400 4800 9600 19200 28800 38400 576 and 115 5017 Parity This is the parity code to be used for the port Values are None Odd Even 5018 Data Bits This parameter sets the number of data bits for each word used by the protocol Valid entries for this field are 5 through 8 5019 5020 Stop Bits RTS On This parameter sets the number of stop bits to be used with each data value sent Valid entries are 1 and
112. ock MCM1Clock WriteClock MCM1Clock CommandControl MCM1CommandControlPorts EventCommand MCM1EventCommandPorts J SlavePollingControl MCM1SlavePollingControlPorts SlaveStatus MCM1SlaveStatusPorts MBCoil MCM1Coil_Array This object contains objects that define the configuration user data status and command control data related to the module This object reads and write data between the module and the processor Values entered determine the ladder logic and data size required in the application The ReadData and WriteData arrays must be sized to or larger than the count values entered The ladder logic must process the number of blocks of data to be transferred The number of blocks is computed as follows BlockCnt INT RegCnt n if MOD RegCnt n 1 0 Where n is the block transfer size and equals 60 120 or 240 If the register count is evenly divisible by n the number of blocks is easy to compute and the ladder is much simpler to write If the number is not evenly divisible by n special handling of the last block of data must be developed as it must transfer less than n words Page 32 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module Important It is recommended that the count values always be set to values evenly divisible by n The BPFail parameter determines if the module sho
113. ogram has halted or a critical error has occurred Connect to the Configuration Debug port to see if the module is running If the program has halted turn off power to the rack remove the card from the rack and re insert the card in the rack and then restore power to the rack ProSoft Technology Inc Page 73 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Page 74 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module 5 Reference In This Chapter gt Product Specifications ccccccccesesesesesesesssesssssssssssesesereseees 75 gt Functional OVErview c eee ceeseeeeeeeeeeeeenaeeeeeeeeeeeeneeeeseaas 77 amp Cable Connections it ere e eE r rE EEEn 97 gt MCM Database Definition 0 eee ee eeneeeeeenneeeeeeeeees 103 gt Status Data Definition 0 eee ereere 103 gt Configuration Data Definition 0 ccc eects ee eeeeeeeeees 105 5 1 Product Specifications The MV69 Modbus Communication Module allows Rockwell Automation CompactLogix processors to interface easily with other Modbus protocol compatible devices Compatible devices include not only Modicon PLCs which all support the Modbus protocol but also a wide assortment of end devices The module acts as an input output module between the Modbus network and the CompactLogix backplane The data transfer from the
114. ogramming software version 2 51 or higher Rockwell Automation RSLinx communication software Pentium Il 450 MHz minimum Pentium III 733 MHz or better recommended Supported operating systems o Microsoft Windows XP Professional with Service Pack 1 or 2 o Microsoft Windows 2000 Professional with Service Pack 1 2 or 3 o Microsoft Windows Server 2003 128 Mbytes of RAM minimum 256 Mbytes of RAM ProSoft Technology Inc E RB May 22 2007 eae 010 81817979 QQ 78409206 a 13801020197 MSH rtc comMl 3 com MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module 100 Mbytes of free hard disk space or more based on application requirements 256 color VGA graphics adapter 800 x 600 minimum resolution True Color 1024 x 768 recommended CD ROM drive HyperTerminal or other terminal emulator program capable of file transfers using MCM protocol 1 2 Package Contents The following components are included with your MVI69 MCM module and are all required for installation and configuration Important Before beginning the installation please verify that all of the following items are present Qty Part Name Part Number Part Description 1 MVI69 MCM MVI69 MCM Modbus Communication Module Module 1 Cable Cable 15 RS232 For RS232 Connection to the CFG Port Null Modem 3 Cable Cable 14 RJ45 to For DB9 Connection to Module s Port DB9 Male Adapter cable 2 Adapter 1454 9F Tw
115. on Data The ladder logic will be responsible for parsing and copying the received message and performing the proper control operation as expected by the master device The processor must then respond to the pass through control block with a write block with the following format Offset Description Length in words 0 9958 1 ProSoft Technology Inc Page 91 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Offset Description Length in words 1ton Spare This will inform the module that the command has been processed and can be cleared from the pass through queue n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file Function 6 and 16 Offset Description Length in words 0 0 1 1 9956 9957 floating point 1 2 Length 1 3 Data Address 4ton Data The ladder logic will be responsible for parsing and copying the received message and performing the proper control operation as expected by the master device The processor must then respond to the pass through control block with a write block with the following format Offset Description Length in words 0 9956 9957 1 1ton Spare This will inform the module that the command has been processed and can be cleared from the pass through queue n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter r
116. on Length in words 0 3002 3006 or 3102 3106 1 1ton Spare n n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file The module will recognize the request by receiving the special write block code and respond with a read block with the following format Read Block Read Slave Status Offset Description Length in words 0 3002 to 3006 or 3102 to 3106 1 1 Write Block ID 1 2 to 61 Slave Poll Status Data 60 62 ton Spare if present ProSoft Technology Inc Page 87 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module The sample ladder logic shows how to override the value in the slave status table to disable slaves state value of 3 by sending a special block of data from the processor to the slave Port 1 slaves are disabled using block 3000 and Port 2 slaves are disabled using block 3100 Each block contains the slave node addresses to disable The structure of the block is displayed below Write Block Disable Slaves Offset Description Length in words 0 3000 or 3100 1 1 Number of slaves in block 1 2 to 61 Slave indexes 60 62 to n 1 Spare n 120 or 240 if configured The module will respond with a block with the same identification code received and indicate the number of slaves acted on with the block The format of this response block is displayed below Read Block Di
117. on dialog box Click the Download button to transfer the sample program to the processor Download to the controller e Name MYI69 Type 1769 L32E 4 CompactLogix5332E Controller Path AB_DF1 1 Security lt None gt A The controller is in Remote Run mode The mode will be changed to Remote Program prior to download j Cancel Help 3 RSLogix will compile the program and transfer it to the processor This process may take a few minutes 4 When the download is complete RSLogix will open another confirmation dialog box Click OK to switch the processor from Program mode to Run mode RSLogix 5000 t Done downloading Change controller mode back to Remote Run e No Note If you receive an error message during these steps refer to your RSLogix documentation to interpret and correct the error H A ae 010 81817979 QQ 38409206 A 13801020197 MSN xec comil 3 com Page 14 of 121 Start Here Ivivioy iviuM CompactLogix Platform Modbus Communication Module 1 6 1 Configuring RSLinx gt If RSLogix is unable to establish communication with the processor follow these steps 1 Open RSLinx 2 Open the Communications menu and choose Configure Drivers Communications Station DDE OPC RSWho Configure Drivers Configure Shortcuts Configure Client Applications Configure CIP Options Driver Diagnostics CIP Diagnostics This action opens the Configure
118. onfiguration procedure fails verify that the cables are connected correctly between the processor and the serial port on your computer and then try again If you are still unable to auto configure the port refer to your RSLinx documentation for further troubleshooting steps Page 16 of 121 3 ae 010 81817979 QQ 38409206 a 13801020197 MSN xc comil 3 com Start Here Ivivioy liviuM CompactLogix Platform Modbus Communication Module 1 7 Connect your PC to the Module With the module securely mounted connect your PC to the Configuration Debug port using an RJ45 DB 9 Serial Adapter Cable and a Null Modem Cable 1 Attach both cables as shown 2 Insert the RJ45 cable connector into the Configuration Debug port of the module 3 Attach the other end to the serial port on your PC or laptop Null Modem Cable tc D MES ial Null Modem Cable Adapter Ca ble i 010 81817979 Q0 38409206 H 13801020197 MSN xc comml 3 com ProSoft Technology Inc May 22 2007 MVI69 MCM CompactLogix Platform Start Here Modbus Communication Module Page 18 of 121 i 010 81817979 QO 58409206 a 13801020197 MSN xc comml 3 com Installing and Configuring the Module Ivivioy IviuM CompactLogix Platform Modbus Communication Module 2 Installing and Configuring the Module In This Chapter gt Installing and Configuring the Module with a CompactLogix PROCESSOR sg
119. onfigured as a master you only need to enable these parameters to support a write to this type of addressing Modbus FC 6 or 16 If the slave device shows addressing as shown in Example 2 then you need not do anything with the Float Flag Float Start parameters as they use two Modbus addresses to represent one floating point value Example 2 Modbus Address Data Type Parameter 47101 32 bit REAL TEMP Pump 1 47103 32 bit REAL Pressure Pump 1 47105 32 bit REAL TEMP Pump 2 47107 32 bit REAL Pressure Pump 2 Because each 32 bit REAL value is represented by two Modbus Addresses example 47101 and 47102 represent TEMP Pump 1 then you need not set the Float Flag or Float Start for the module for Modbus FC 6 or 16 commands being written to the slave Below are specific examples Page 38 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module Master is issuing Modbus command with FC 16 with Float Flag Yes to transfer Float data to Slave MCM Master Internal DB float specific Module parameters Float Flag Y 1500 1501 85 37 Float Start 7100 1502 1503 22 86 Modbus Command parameters DB Poll Reg Swap Slave Func Addr Delay Count Code Addr Code 1500 0 2 0 1 16 Modbus Slave 47101 85 37 47102 22 86 The user needs to know what area in the Slave s database has been defined for holding Floating
120. onnect to the module is the Main menu Because this is a text based menu system you enter commands by typing the command letter from your computer keyboard in the terminal application for example HyperTerminal The module does not respond to mouse movements or clicks The command executes as soon as you press the command letter you do not need to press Enter When you type a command letter a new screen will be displayed in your terminal application ProSoft Technology Inc Page 55 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Diagnostics and Troubleshooting Modbus Communication Module Navigation All of the sub menus for this module contain commands to redisplay the menu or return to the previous menu You can always return from a sub menu to the next higher menu by pressing M on your keyboard The organization of the menu structure is represented in simplified form in the following illustration Main Menu Child Menu A Child Sub Menu 1 Child Sub Menu 2 Child Sub Menu 3 Child Menu B Child Sub Menu 1 Child Menu C Child Sub Menu 1 Child Sub Menu 2 The remainder of this section shows you the menus available for this module and briefly discusses the commands available to you Keystrokes The keyboard commands on these menus are almost always non case sensitive You can enter most commands in lower case or capital letters The menus use a
121. or Revision 1 Z 1769 1M12 4 1769 01674 1769 IQ6XOW 4 4 1769 IQ6XOW4 B 1769 IR6 4 1769 IT6 A 1769 MODULE 1769 0A16 A 1769 0A87A 1769 0A8 B 1769 0B16 4 1769 08168 Show Type Description 12 Point 240V AC Input a 16 Point 24V DC Input Sink Source 6 Point 24V DC Sink Source Input 4 Point AC DC Relay Output 6 Point 24V DC Sink Source Input 4 Point AC DC Relay Output 6 Channel RTD Direct Resistance Analog Input 6 Channel Thermocouple m Analog Input Generic 1769 Module 16 Point 100 240 AC Output 8 Point 100 240 AC Output 8 Point 100 240 AC Output 16 Point 24V DC Output Source 16 Point 24V DC Output Source Vendor fai M Analog M Digital Communication V Motion Controller Clear All M Other Specialty 1 0 Select All Cancel Help Select 1769 Module Generic 1769 Module from the list and click OK This action opens the General page allowing you to configure the block transfer size 2 1 Installing and Configuring the Module with a CompactLogix Processor If you are installing and configuring the module with a CompactLogix processor follow these steps If you are using a MicroLogix processor refer to the next section This chapter describes how to install and configure the module to work with your application The configuration process consists of the following steps 1 Use RSLogix to identify the module to the processor and add the module to a project
122. ore characters Call Network Master amp Slave Drivers Generate messages and respond to messages received Backplane Data Transfer The MVI69 MCM module communicates directly over the CompactLogix or MicroLogix backplane Data is paged between the module and the CompactLogix or MicroLogix processor across the backplane using the module s input and output images The update frequency of the images is determined by the scheduled scan rate defined by the user for the module and the communication load on the module Typical updates are in the range of 2 to 10 milliseconds The data is paged between the processor and the module using input and output image blocks You can configure the size of the blocks using the Block Transfer Size parameter in the configuration file You can configure blocks of 60 120 or 240 words of data depending on the number of words allowed for your own application This bi directional transference of data is accomplished by the module filling in data in the module s input image to send to the processor Data in the input image is placed in the Controller Tags in the processor by the ladder logic The input image for the module may be set to 62 122 or 242 words depending on the block transfer size parameter set in the configuration file The processor inserts data to the module s output image to transfer to the module The module s program extracts the data and places it in the module s internal databas
123. otential data loss or other failures Only use these commands if you are specifically directed to do so by ProSoft Technology Technical Support staff Some of these command keys are not listed on the menu but are active nevertheless Please be careful when pressing keys so that you do not accidentally execute an unwanted command Cd I I I I I I I I I I I III Display Menu I Redisplays refreshes this menu aae C h W Version Information ams Displays Version Information screen a D Database Menu T Opens Database hlenu See Database Menu section h C Clear Diagnostic Data Clears resets diagnostic data J B Backplane Menu m Opens Backplane Menu See Backplane Menu section eooo IINU a h A See Protocol Serial Menu D Protocol_ Serial _M Chi 1 gt Opens Port 1 Menu ant pM aap a gt ai Section a OEO _ _ eh 1 Protocol_Serial_MCM 2 7 Opens Port 2 Menu p see amta SE CE aaas h Send Configuration File gt Prompts to download configuration file J Receive Coniguration File rompts to upload configuration file R Receive Cont ion Fil P load fi ion fil nn gt h Restarts the module DO NOT USE unless SOR uy Bee eT m directed to do so by Pro Softtechnical support be Ej h Exits back tothe 0 DO NOT USE unless SAC lewd e a m directed to do so by Pro Softtechnical support ee Page 58 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Tro
124. parameters that must be defined for a slave port An exception to this normal mode is when the pass through mode is implemented In this mode all write requests will be passed directly to the processor and will not be placed in the database This permits direct remote control of the processor without the intermediate database This mode is especially useful for Master devices that do not send both states of control For example a SCADA system may only send an on command to a digital control point and never send the clear state The SCADA system expects the local logic to reset the control bit Pass through must be used to simulate this mode The following diagram shows the data flow for a slave port with pass through enabled Processor Memory Backplane Interface MCM Module ControlLogix Controller Tags Database Be 40001 Page 94 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Master Driver Mode In the Master mode the MVI69 MCM module issues read or write commands to slave devices on the MODBUS network These commands are user configured in the module via the Master Command List is received from the user defined configuration file that is stored on the MVI69 MCM module or can be issued directly from the Compact Logix processor event command control Command status is returned to the processor for each individual command in the command list status
125. r settings Press to view a list of commands available on this menu B Backplane Menu Display Menu Redisplays refreshes this menu V Version Information Displays version information screen ee 5 III III Ss __ a AE S Opens the Master Command List hs gt See Master Command List Menu I menu section Serial Port Opens the Serial Port menu See Serial Port Menu section J E Error Status hformation Opens the Command List menu See Command List Menu section S SSSSlllQllSllSSSSE Redisplaying the Menu Press to display the current menu Use this command when you are looking at a screen of data and want to view the menu choices available to you Viewing Version Information Press V to view Version information for the module Use this command to view the current version of the software for the module as well as other important values You may be asked to provide this information when calling for technical support on the product Values at the bottom of the display are important in determining module operation The Program Scan Counter value is incremented each time a module s program cycle is complete Tip Repeat this command at one second intervals to determine the frequency of program execution Returning to the Main Menu Press M to return to the Main Menu Page 66 of 121 ProSoft Technology Inc Ma
126. r values for the program operating system 9 10 Run Number These two registers contain the Run Number value for the currently running software 11 Port 1 Command List This field contains the number of requests made from this Requests port to slave devices on the network 12 Port 1 Command List This field contains the number of slave response messages Response received on the port 13 Port 1 Command List This field contains the number of command errors processed Errors on the port These errors could be due to a bad response or command 14 Port 1 Requests This field contains the total number of messages sent out of the port 15 Port 1 Responses This field contains the total number of messages received on the port 16 Port 1 Errors Sent This field contains the total number of message errors sent out of the port 17 Port 1 Errors This field contains the total number of messages errors Received received on the port 18 Port 2 Command List This field contains the number of requests made from this Requests port to slave devices on the network 19 Port 2 Command List This field contains the number of slave response messages Response received on the port ProSoft Technology Inc May 22 2007 Page 85 of 121 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Offset Content Description 20 Port 2 Command List This field contains the number of command errors processed
127. rameter defines the number of registers for the command The Swap Code changes the word or byte order The Device Address parameter defines the MODBUS address on the target MODBUS device to consider ProSoft Technology Inc Page 89 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module The Function Code parameter is one of those defined in the ProSoft MODBUS Command Set documentation The parameter fields in the block should be completed as required by the selected function code Each command has its own set of parameters When the block is received the module will process it and place the command in the command queue The module will respond to each event command block with a read block with the following format Read Block Event Command Offset Description Length in words 0 1000 1255 or 2000 2255 1 1 Write Block ID 1 2 0 Fail 1 Success 1 3 ton Spare n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file Word two of the block can be used by the ladder logic to determine if the command was added to the command queue of the module The command will only fail if the command queue for the port is full 100 commands for each queue or the command requested is invalid Command Control Command control blocks place commands in the command list into the command queue Each port has a command q
128. re received from the processor 6696 Command Event This field contains the total number of command Block Count event blocks received from the processor 6697 Command Block This field contains the total number of command Count blocks received from the processor 6698 Error Block Count This field contains the total number of block errors recognized by the module 6699 Port 1 Current Error For a slave port this field contains the value of the current error code returned For a master port this field contains the index of the currently executing command 6700 Port 1 Last Error For a slave port this field contains the value of the last error code returned For a master port this field contains the index of the command with the error 6701 Port 2 Current Error For a slave port this field contains the value of the current error code returned For a master port this field contains the index of the currently executing command 6702 Port 2 Last Error For a slave port this field contains the value of the last error code returned For a master port this field contains the index of the command with an error 6703 Spare 6749 Spare 6750 Port 1 Use Guard Use packet gap timeout for messages Yes or No Band Use only in multi drop applications Page 112 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Register Content
129. rm Installing and Configuring the Module Modbus Communication Module 2 6 1 Required Hardware You can connect directly from your computer s serial port to the serial port on the module to view configuration information perform maintenance and send upload or receive download configuration files ProSoft Technology recommends the following minimum hardware to connect your computer to the module 80486 based processor Pentium preferred 1 megabyte of memory Atleast one serial communications port available A null modem serial cable 2 6 2 Required Software In order to send and receive data over the serial port COM port on your computer to the module you must use a communication program terminal emulator A simple communication program called HyperTerminal is pre installed with recent versions of Microsoft Windows operating systems If you are connecting from a machine running DOS you must obtain and install a compatible communication program The following table lists communication programs that have been tested by ProSoft Technology DOS ProComm as well as several other terminal emulation programs Windows 3 1 Terminal Windows 95 98 HyperTerminal Windows NT 2000 XP HyperTerminal The module uses the Ymodem file transfer protocol to send upload and receive download configuration files from your module If you use a communication program that is not on the list above please be sure that it supports Ymo
130. rt Here Ivivioy IviuM CompactLogix Platform Modbus Communication Module 1 Start Here In This Chapter gt System Requirements 0 ccccceseccescescesesseeeessenteeseseeteeneeees 7 gt Package Content scceccesccesseeccesste denii aiaia 8 gt Setting JUMPECMS ieceessndssceteadinctavavetendieesessssecs eanieceezeusterescacnesseiter 9 gt Installing the Module ccceeeceeeceeeeeeceeeeseeeaeeeeeeeeeseesenaeees 9 gt Connect your PC to the Processor 13 gt Download the Sample Program to the Processor 4 14 gt Connect your PC to the Module cccccccceeceeeeeeeeteeeees 16 Installing the MVIG9 MCM module requires a reasonable working knowledge of the Rockwell Automation hardware the MVIG9 MCM Module and the application in which they will be used B casio It is important that those responsible for implementation can complete the application without exposing personnel or equipment to unsafe or inappropriate working conditions Safety quality and experience are key factors in a successful installation 1 1 System Requirements The MVI69 MCM module requires the following minimum hardware and software components Rockwell Automation CompactLogix or MicroLogix processor with compatible power supply and one free slot in the rack for the MVI69 MCM module The module requires 800mA of available power Rockwell Automation RSLogix 5000 CompactLogix or RSLogix 500 pr
131. s J rotaria ra a AAAA Tai 34 laz User DaT ODECE sneonen nei a aea R ite ee ee nite 34 2 3 3 Slave Polling Control and Status aaasseeeneesrneeirrensnnssrinnestsnnestnnnaeneannnaninnnntanaestannnna 35 23 4 MODBUS Message Data morrade iaar aaar ARAKA AARE EEEE 35 2 4 Command List Overview s ccccsccceseeeeeseeeeeeeeeseaeseneeeenseeeeseaesasaeesnseeeseseeeseeseneeneeeseees 36 2 5 MODBUS Command Configuration cc ccccsccsseeeeeeeeeeeeeeseeeseneeeeeeeeeseeeseseeeeeeseeeneas 36 2 5 1 Floating PoIntSup port sei arae rna ein nate ee tiie ee ae 36 2 5 2 Commands Supported by the Module c ccccceceeeeeeeeeeeeceeeeeeeseeeeaeeeeeeeeeeeeeeenaees 42 2 5 3 Command Entry Format sisian r aaa raaa AEAEE REEERE 43 2 6 Uploading and Downloading the Configuration File sseceseesesesseeeeeeenees 45 2 6 1 pte Ele Ma ETEO NEET EE E E E E EA T 46 20 2 _ REQUIFEDSOMWANG ea a e a aaa a a E a aaae aaa eaa i anaa iE 46 2 6 3 Transferring the Configuration File to Your PC ssssessessesirsseerrsserrrssrerrssrrrnsssrerrsss 47 2 6 4 Transferring the Configuration File to the Module 0 00 eeeeceeeeeeeeeeeeenneeeeeeneeeeeeeaes 50 3 LADDER LOGG ae ee e raea aaee aa aaa pene cece bade ea aa aaar ea Taaa aaaea aai 53 4 DIAGNOSTICS AND TROUBLESHOOTING sscccseeeesseeeeseeeeeeeeeeeeeseseeesnseeeeeseeseseaesnsneeeeseeeas 55 4 1 Reading Status Data from the module cccccseeeeeseeeeeeeeeseeeseneeeeeeeeesseaeeeseeeenseeene
132. sable Slaves Offset Description Length in words 0 3000 or 3100 1 1 Write Block ID 1 2 Number of slaves processed 1 3 to n 1 Spare n 60 120 or 240 if configured The sample ladder logic explains how to override the value in the slave status table to enable the slave state value of 1 by sending a special block Port 1 slaves are enabled using block 3001 and Port 2 slaves are enabled using block 3101 Each block contains the slave node addresses to enable The format of the block is displayed below Write Block Enable Slaves Offset Description Length in words 0 3001 or 3101 1 1 Number of slaves in block 1 2 Slave indexes 1 3 ton Spare n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file The module will respond with a block with the same identification code received and indicate the number of slaves acted on with the block The format of this response block is displayed below Read Block Enable Slaves Offset Description Length in words 0 3001 or 3101 1 1 Write Block ID 1 Page 88 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Offset Description Length in words 2 Number of slaves processed 1 3 ton Spare n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuratio
133. sage Data 35 Module Communication Error Codes 96 Module Data Object MCMModuleDef 32 Module Power Up 78 Moving Back Through 5 Pages of Registers 62 N Navigation 56 Normal Data Transfer 81 O Opening the Backplane Menu 59 Opening the Command List Menu 65 Opening the Data Analyzer Menu 67 Opening the Database Menu 59 Opening the Protocol Serial Menu 59 Opening the Serial Port Menu 65 P Package Contents 8 Pass Through Control Blocks 91 Please Read This Notice 2 Port 1 Commands 111 Port 1 Setup 106 Port 2 Commands 111 Port 2 Setup 108 Product Specifications 5 75 Protocol Serial MCM Menu 64 R Read Block 81 Read Block Command Control 91 Read Block Disable Slaves 88 Read Block Enable Slaves 88 Read Block Event Command 90 Read Block Read Slave Status 87 Reading Status Data from the module 5 55 Receiving the Configuration File 59 Redisplaying the Current Page 65 Redisplaying the Menu 59 63 64 66 Reference 5 36 75 Removing Timing Marks in the Data Analyzer 68 Required Hardware 46 56 Required Software 46 57 Returning to the Main Menu 62 63 64 66 70 RS 232 99 RS 232 Modem Connection 100 RS 232 Null Modem Connection Hardware Handshaking 100 RS 232 Null Modem Connection No Hardware Handshaking 101 RS 232 Configuration Debug Port 97 Index RS
134. sferred to the module from the CompactLogix or MicroLogix processor If the module s OK LED does not turn green verify that the module is inserted completely into the rack If this does not cure the problem contact ProSoft Technology Support khOND oo Troubleshooting Use the following troubleshooting steps if you encounter problems when the module is powered up If these steps do not resolve your problem please contact ProSoft Technology Technical Support Processor Errors Problem Description Steps to take Processor Fault Verify that the module is plugged into the slot that has been configured for the module Verify that the slot in the rack configuration has been set up correctly in the ladder logic Processor I O LED This indicates a problem with backplane communications Verify that all flashes modules in the rack are configured in the ladder logic Module Errors Problem Description Steps to take BP ACT LED remains This indicates that backplane transfer operations are failing Connect to the off or blinks slowly module s Configuration Debug port to check this To establish backplane communications verify the following items The processor is in Run mode The backplane driver is loaded in the module The module is configured for read and write block data transfer The ladder logic handles all read and write block situations The module is configured in the processor OK LED remains red The pr
135. shown Additionally this section contains the miscellaneous status data and command control database layout Group Register Content Description Backplane 5000 Setup Write Start Reg This parameter specifies the starting register in the module where the data transferred from the processor will be placed Valid range for this parameter is 0 to 4999 5001 Write Reg Count This parameter specifies the number of registers to transfer from the processor to the module Valid entry for this parameter is 0 to 5000 5002 Read Start Reg This parameter specifies the starting register in the module where data will be transferred from the module to the processor Valid range for this parameter is 0 to 4999 5003 Read Reg Count This parameter specifies the number of registers to be transferred from the module to the processor Valid entry for this parameter is 0 to 5000 5004 Backplane Fail This parameter specifies the number of successive transfer errors that must occur before the communication ports are shut down If the parameter is set to 0 the communication ports will continue to operate under all conditions If the value is set larger than 0 1 to 65535 communications will cease if the specified number of failures occur 5005 Error Status Pointer This parameter specifies the register location in the module s database where module status data will be stored If a value less than
136. stalling the Module This section describes how to install the module into a CompactLogix or MicroLogix rack Before you attempt to install the module make sure that the bus lever of the adjacent module is in the unlocked fully right position Warning This module is not hot swappable Always remove power from the rack before inserting or removing this module or damage may result to the module the processor or other connected devices 1 Align the module using the upper and lower tongue and groove slots with the adjacent module and slide forward in the direction of the arrow Upper Tongue and Groove a Lower Tongue and Groove 2 Move the module back along the tongue and groove slots until the bus connectors on the MVI69 module and the adjacent module line up with each other H A Page 10 of 121 i 010 81817979 QO 58409206 a 13801020197 MSN ec comil 3 com Start Here Ivivioy liviuM CompactLogix Platform Modbus Communication Module 3 Push the module s bus lever back slightly to clear the positioning tab and move it firmly to the left until it clicks Ensure that it is locked firmly in place DIN Rail Latches Bus Lever Free position gt Top View Move the Bus Lever to the left until it clicks Bus Lever Engaged position gt Top View 4 Close all DIN rail latches ProSoft Technology Inc M
137. stems If you are connecting from a machine running DOS you must obtain and install a compatible communication program The following table lists communication programs that have been tested by ProSoft Technology DOS ProComm as well as several other terminal emulation programs Windows 3 1 Terminal Windows 95 98 HyperTerminal Windows NT 2000 XP HyperTerminal The module uses the Ymodem file transfer protocol to send upload and receive download configuration files from your module If you use a communication program that is not on the list above please be sure that it supports Ymodem file transfers 4 1 4 Using the Configuration Debug Port To connect to the module s Configuration Debug port 1 Connect your computer to the module s port using a null modem cable 2 Start the communication program on your computer and configure the communication parameters with the following settings Baud Rate 57 600 Parity None Data Bits 8 Stop Bits 1 Software Handshaking XON XOFF 3 Open the connection When you are connected press the key on your keyboard If the system is set up properly you will see a menu with the module name followed by a list of letters and the commands associated with them If there is no response from the module follow these steps 1 Verify that the null modem cable is connected properly between your computer s serial port and the module A regular serial cable will not work 2 V
138. t Technology Inc Page 97 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Disabling the RSLinx Driver for the Com Port on the PC The communication port driver in RSLinx can occasionally prevent other applications from using the PC s COM port If you are not able to connect to the module s configuration debug port using HyperTerminal or a similar terminal emulator follow these steps to disable the RSLinx Driver 1 Open RSLinx and go to Communications gt RSWho 2 Make sure that you are not actively browsing using the driver that you wish to stop The following shows an actively browsed network E loxi V Autobrowse E Browsing node 10 found z 10 01 DF1 COM1 UNTITLED E Workstation PSFT AIO 1 gs Linx Gateways Ethernet AB_DF1 1 DH 485 01 SLC 5 05 UNTITLED 10 Workstation DF1 COM1 3 Notice how the DF 1 driver is opened and the driver is looking for node 1 an SLC processor If the network is being browsed then you will not be able to stop this driver To stop the driver your RSWho screen should look like this Not Browsing E E SE Workstation PSFT VAIO 1 Has Linx Gateways Ethernet an ae gs AB_DF1 1 DH 485 Line AB DF1 1 Gatew DH 485 Branches are displayed or hidden by clicking on the or the icons E gs AB_DF1 1 DH 485 4 When you have verified that the driver is not being browsed go to Communications gt Configure Drivers
139. the a NON Enron Daniel supporting Slave s Modbus command that will be transmitted inside the Modbus packet will be as follows Slave Function Byte Data address Code Count DEC 01 3 4 32 75 HEX 01 03 04 00 00 42 03 2 5 2 Commands Supported by the Module The format of each command in the list is dependent on the MODBUS Function Code being executed The tables below list the functions supported by the module Function Definition Supported in Supported in Code Master Slave 1 Read Coil Status X X 2 Read Input Status X X 3 Read Holding Registers X X 4 Read Input Registers X X 5 Set Single Coil X X 6 Single Register Write X X 7 Read Exception Status X 15 Multiple Coil Write X X 16 Multiple Register Write X X 22 Mask Write 4X X 23 Read Write X Each command list record has the same general format The first part of the record contains the information relating to the communication module and the second part contains information required to interface to the MODBUS slave device Page 42 of 121 ProSoft Technology Inc May 22 2007 Installing and Configuring the Module MVI69 MCM CompactLogix Platform Modbus Communication Module 2 5 3 Command Entry Formats The following table shows the structure of the configuration data necessary for each of the supported commands MODBUS Command Structure Column 1 2 3 4 5 6 7 8 Function Enable Internal Poll Count S
140. trol line not set before transmit 2 Timeout while transmitting message 11 Timeout waiting for response after request 253 Incorrect slave address in response 254 Incorrect function code in response 255 Invalid CRC LRC value in response Command List Entry Errors Code Description 41 Invalid enable code 42 Internal address gt maximum address 43 Invalid node address lt 0 or gt 255 44 Count parameter set to 0 45 Invalid function code 46 Invalid swap code Cable Connections The application ports on the MVI69 MCM module support RS 232 RS 422 and RS 485 interfaces Please look at the module to ensure that the jumpers are set correctly to correspond with the type of interface you are using Note When using RS 232 with radio modem applications some radios or modems require hardware handshaking control and monitoring of modem signal lines Enable this in the configuration of the module by setting the UseCTS parameter to 1 5 3 1 RS 232 Configuration Debug Port This port is physically an RJ45 connection An RJ45 to DB 9 adapter cable is included with the module This port permits a PC based terminal emulation program to view configuration and status data in the module and to control the module The cable for communications on this port is shown in the following diagram RS 232 Config Debug Port Cable DB 9 Male Config Debug Port Ro 2 to To 3 ro COM COM ProSof
141. u section J C I SSSS E Error Status Information o Opens the Command List menu See Command List Menu section Redisplaying the Menu Press to display the current menu Use this command when you are looking at a screen of data and want to view the menu choices available to you Viewing Version Information Press V to view Version information for the module Use this command to view the current version of the software for the module as well as other important values You may be asked to provide this information when calling for technical support on the product Values at the bottom of the display are important in determining module operation The Program Scan Counter value is incremented each time a module s program cycle is complete Tip Repeat this command at one second intervals to determine the frequency of program execution Returning to the Main Menu Press M to return to the Main Menu Page 64 of 121 ProSoft Technology Inc May 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module Viewing Configuration Information Press C to view configuration information for the selected port protocol driver or device Opening the Command List Menu Press L to open the Command List menu Use this command to view the configured command list for the module Opening the Serial Port Menu Press S to open the Serial Port menu Use this command to view and chan
142. ubject to change without notice and does not represent a commitment on the part of ProSoft Technology Improvements and or changes in this manual or the product may be made at any time These changes will be made periodically to correct technical inaccuracies or typographical errors Your Feedback Please We always want you to feel that you made the right decision to use our products If you have suggestions comments compliments or complaints about the product documentation or support please write or call us ProSoft Technology 1675 Chester Avenue Fourth Floor Bakersfield CA 93301 1 661 716 5100 1 661 716 5101 Fax http www prosoft technology com Copyright ProSoft Technology Inc 2000 2007 All Rights Reserved MVI69 MCM User Manual May 22 2007 PSFT MCM MVI69 UM 07 05 22 ProSoft Technology ProLinx inRAx ProTalk and RadioLinx are Registered Trademarks of ProSoft Technology Inc s aR Contents i 01081817979 H 13801020197 MSH xc comil 3 com Contents PLEASE READ THIS NOTICE 2c T aa heres ae ea aaa aa a ar p an ranra aeaea eelda raataa deee ideia aaiae 2 Your Feedback Please ccssecccsceesseeeeseeeeneeeeescaesaseeeenseeeseaesasaeeensnaeeeaeeeseaesaaeeaeseesaseaeeaseeesneeees 2 GUIDE TO THE MVI69 MCM USER MANUAL ccccsseeceeseeeseeeeeseeeeeeeeeseesesaeenseeeeeeeeensaesenseeeeeenes 5 1 START HERE a a aeara aeaa ara Te ae aaae aaa aE sa a eaa aaen a rE a aoaaa ae
143. ubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module Redisplaying the Menu Press to display the current menu Use this command when you are looking at a screen of data and want to view the menu choices available to you Viewing Version Information Press V to view Version information for the module Use this command to view the current version of the software for the module as well as other important values You may be asked to provide this information when calling for technical support on the product Values at the bottom of the display are important in determining module operation The Program Scan Counter value is incremented each time a module s program cycle is complete Tip Repeat this command at one second intervals to determine the frequency of program execution Opening the Database Menu Press D to open the Database View menu Use this menu command to view the current contents of the module s database Clearing Diagnostic Data Press C to clear diagnostic data from the module s memory Opening the Backplane Menu Press B from the Main Menu to view the Backplane Data Exchange List Use this command to display the configuration and statistics of the backplane data transfer operations Tip Repeat this command at one second intervals to determine the number of blocks transferred each second Opening the Protocol Serial Menu Press 0 or 1 to view the Protocol Serial Menu for ports 1
144. ueue of up to 100 commands The module services commands in the queue before the master command list This gives high priority to commands in the queue Commands placed in the queue through this mechanism must be defined in the master command list Under normal command list execution the module will only execute commands with the Enable parameter set to one or two If the value is set to zero the command is skipped Commands may be placed in the command list with an Enable parameter set to zero These commands can then be executed using the command control blocks One to six commands can be placed in the command queue with a single request The following table describes the format for this block Write Block Command Control Offset Description Length in words 5001 to 5006 or 5101 to 5106 Command index Command index Command index Command index a oa 43 3 a oa Command index 0 1 2 3 4 Command index 5 6 7 ton Spare Page 90 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module n 60 120 or 240 depending on what is entered in the Block Transfer Size parameter refer to the configuration file Blocks in the range of 5001 to 5006 are used for Port 1 and blocks in the range of 5101 to 5106 are used for Port 2 The last digit in the block code defines the number of commands to process in the block For example
145. uld continue communicating on the MODBUS network when the backplane transfer operation fails A value of zero indicates that the module should continue communicating when the backplane is not operational If the value is greater than zero the backplane will be retried the entered number of times before a failure will be reported and communication will cease on the ports When backplane communication is restored the module will start communicating on the network For example if you enter a value of 10 for the parameter the module will stop all MODBUS communications if 10 successive backplane errors are recognized When a successful transfer is recognized the module will resume communications on the network The ErrStatPtr parameter defines the location in the module s database where the error status data will be stored If the value is set to 1 the data will not be stored in the user data area A value between 0 and 4939 will cause the module s program to store the data at the specified location ProSoft Technology Inc Page 33 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module 2 3 1 Status Object MCM1 Status This object views the status of the module The MCM1Status object shown below is updated each time a read block is received by the processor Use this data to monitor the state of the module at a real time rate A Data Type MCM1_STATUS Name JMC
146. um delay time in tenths of a second between the issuance of a command If the user specifies a value of 10 for the parameter the command will be executed no more frequently than every 1 second Write commands have a special feature as they can be set to execute only if the data in the write command changes which can improve network performance If the register data values in the command have not changed since the command was last issued the command will not be executed To enable this feature set the enable code for the command to a value of 2 MODBUS Command Configuration The ProSoft Technology MCM MODBUS Master and Slave communication drivers support several data read and write commands When configuring a Master port the decision on which command to use is made depending on the type of data being addressed and the level of MODBUS support in the slave equipment When configuring as a slave it may be important to understand how the MODBUS commands function in order to determine how to structure the application data We have included an excerpt from the MODBUS Protocol Specification in the Reference page 74 to assist in thoroughly understanding the functionality of the MODBUS protocol 2 5 1 Floating Point Support The movement of floating point data between the MCM module and other devices is easily accomplished as long as the device supports IEEE 754 Floating Point format This IEEE format is a 32 bit single precision floating poi
147. ut following our diagnostic instructions or suggestions will lead to the return request being denied If after these tests are completed the module is found to be defective we will provide the necessary RMA number with instructions on returning the module for repair ProSoft Technology Inc Page 117 of 121 May 22 2007 MVI69 MCM CompactLogix Platform Reference Modbus Communication Module Page 118 of 121 ProSoft Technology Inc May 22 2007 Index Index A About the MODBUS Protocol 78 After you Complete the Module Setup 26 Analyzing Data for Port 1 68 Analyzing Data for Port 2 68 Backplane Data Transfer 79 Backplane Menu 63 C Cable Connections 97 Clearing a Fault Condition 73 Clearing Diagnostic Data 59 Cold Boot 93 Command Control 90 113 Command Control Blocks 89 Command Entry Formats 43 Command List Entry Errors 97 Command List Overview 36 Commands Supported by the Module 42 Configuration Data Definition 103 105 Configuring RSLinx 15 Configuring the Floating Point Data Transfer 38 Connect your PC to the Module 17 Connect your PC to the Processor 13 D Data Analyzer 67 Data Analyzer Tips 70 Data Flow between MVI69 MCM Module and CompactLogix or MicroLogix Processor 93 Database View Menu 61 DB9 to RJ45 Adaptor Cable 14 102 Diagnostics and Troubleshooting 5 29 31 55 Disabling the RSLinx Driver for
148. vices on a MODBUS network and the Rockwell Automation backplane The module uses an internal database to pass data and commands between the processor and the master and slave devices on the MODBUS network Module Power Up On power up the module begins performing the following logical functions 1 Initialize hardware components o Initialize CompactLogix or MicroLogix backplane driver o Test and Clear all RAM o Initialize the serial communication ports 2 Module configuration 3 Initialize Module Register space 4 Enable Slave Driver on selected ports 5 Enable Master Driver on selected ports After this initialization procedure is complete the module will begin communicating with other nodes on the network depending on the configuration Page 78 of 121 ProSoft Technology Inc May 22 2007 Reference MVI69 MCM CompactLogix Platform Modbus Communication Module Main Logic Loop Upon completing the power up configuration process the module enters an infinite loop that performs the following functions From P ower Up Logic Call lO Handler Call I O Handler Transfers data between the module and processor user status etc Call CFG DEBUG Port Driver Call Network Master amp Slave Drivers Call Serial Port Driver Rx and Tx buffer routines are interrupt driven Call to serial port routines check to see if there is any data in the buffer and depending on the value will either service the buffer or wait for m
149. wap Slave Function Device Code Code Address Interval Code Node Code MODBUS Time Address fcl Code Bit Seconds Count 0 Address 1 Bit fc2 Code Bit Seconds Count 0 Address 2 Bit fc3 Code Register Seconds Count Code Address 3 Register fc4 Code Register Seconds Count 0 Address 4 Register fc5 Code Bit Seconds Count 0 Address 5 Bit fc6 Code Register Seconds Count 0 Address 6 Register fc15 Code Bit Seconds Count 0 Address 15 Bit fc16 Code Register Seconds Count 0 Address 16 Register The first part of the record is the Module Information which relates to the module and the second part contains information required to interface to the slave device An example of a command list section of the CFG file is displayed below MODBUS Port 1 Commands Internal Poll Reg Swap Node MODBUS MB Address Enable Address interval Count Code Address Func in Device START 1 0 0 10 0 1 3 1 10 0 10 0 1 4 10 END Important For bit commands the addressable bit range can be 0 to 65535 module memory registers 0 to 4095 16 bits per register The structure of the module memory will not allow bit addressing of internal registers 4096 to 4999 as the bit number would be above 65535 the highest decimal number that can be represented with the 16 bit Internal Address field used by the module Whenever Function codes FCs 1 2 5 or 15 are used by the module as a master the Internal address must be specified as a bit address in the range
150. y 22 2007 Diagnostics and Troubleshooting MVI69 MCM CompactLogix Platform Modbus Communication Module Opening the Data Analyzer Menu Press A to open the Data Analyzer Menu Use this command to view all bytes of data transferred on each port Both the transmitted and received data bytes are displayed Refer to Data Analyzer for more information about this menu Important When in analyzer mode program execution will slow down Only use this tool during a troubleshooting session Before disconnecting from the Config Debug port please be sure to press M to return to the main menu and disable the data analyzer This action will allow the module to resume its normal operating mode 4 1 11 Data Analyzer The data analyzer mode allows you to view all bytes of data transferred on each port Both the transmitted and received data bytes are displayed Use of this feature is limited without a thorough understanding of the protocol ee A Data Analyzer CE nmam OOOO O CEE CE 1 Select Port 1 gt Displays Data Analyzer screen for Port 1 oy cc gt era oma ma oy I IMM Eem OOOO e eoe OOO See e smecotas i nememo O premene Pree onsena N eoms re O H earo msemo mas aan SSS 9 100 m Sec Ticks Displays 100 mSec timing marks 0 No m Sec Ticks Tums offtiming marks Zo i H Hex Format Displ data in hexadec
151. zation list should display the User Defined Data Types shown below 6 8 Controller MVI69MICM Controller Tags Controller Falt Handler Power Up Handler Tasks ea MainTask 4 MainProgram Unscheduled Programs Motion Groups Ungrouped Axes Trends 6 8 Data Types S8 User Defined o MCM1Backplane MCM1BlockRequest H MCM1Clock MCM1Coil_Array MCM1CommandControl MCM1CommandControlPorts MCM1EvertCommand i MCM1EvertCormmandPorts MCM1ModuleDef MCM1SlavePollingControl MCM1SlavePollingControlPorts MCM1SlaveStatus MCM1SlaveStatusPorts MCM1_BLk_STATS 0 MCM1_PORT_ERROR MCM1_STATUS oi Strings wE Predefined w E Module Defined 1 0 Configuration 1 1769 L35 Ethernet Port LocalENB 5 8 CompactBus Local 5 1 1769 MODULE MVI69 ProSoft Technology Inc May 22 2007 Page 27 of 121 MVI69 MCM CompactLogix Platform Installing and Configuring the Module Modbus Communication Module The next step in module setup is to define the data to be used to interface with the module and the ladder logic Open the Controller Tags Edit Tags dialog box and enter the values shown in the following example The MVI69 MCM module is defined in the example as MCM You can set the tag name to any valid tag name you desire If you are using the example ladder logic this step has already been

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