Protocol converter
Contents
1. Shield Wire DB9 MALE PINOUTS 9 41 7 COMMUNICATION CABLES 7 19 OMRON CQM CPM CMOS PORT TO PC S CA 006A 00 OMRON CMOS PC S SIDE me gt OMRON 20 PIN DB9 MALE CONNECTOR CMOS Shield Wire CMOS SIGNALS Pin SIGNALS RXD TXD CMOS 1 2 3 4 5 6 7 8 9 SG eo N wo TXD CMOS gt _ a O NI EN A c N eo Shield Wire DB9 MALE PINOUTS i 42 7 COMMUNICATION CABLES 7 20 RHEONIC MASS FLOW METER TO PC S CA 091A 00 RHEONIC MASS PC SSIDE FLOW METER SIDE 2 mtr DB25 MALE DB9 MALE RS232 Shield Wire RS232 SIGNALS U 5 SIGNALS TXD RXD 1 2 3 4 5 6 7 8 9 eo DB9 MALE Shield Wire PINOUTS yo DB25 MALE PINOUTS OL 43 7 COMMUNICATION CABLES 7 21 RHEONIC MASS FLOW METER TO PC S CA 091B 00 RHEONIC MASS FLOW PC S SIDE M2. V R H S VIEW LU Ai t Cable insert end 33 Pin 8 Right side DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 11 IDEC MICRO TO PC S CA 025A 00 3 PC SSIDE e DEE MICRO C TT BEE o DN MINIDIN 8 PIN MALE DB9 MALE RS232 Shield Wire RS485 SIGNALS SIGNALS A TX B TX RX Shield Wire 8 PIN MINIDIN CONNECTOR PIN DB9 MALE OUTS PINOUTS 34 7 COMMUNICATION CABLES 7 12 KEYENCE KV PLC TO PC S CA 018 00 KEYENCE KV PLC SIDE A PC S SIDE Ki 6X4 MODULAR CONNECTOR RS232 Shield Wire SIGNALS Pin EN DB9 MALE RS232 A p TXD 1 SIGNALS SG 2 8 PIN MODULAR CONNECTOR U PINOUTS FRONT VIEW Cable insert end Shield Wire R H S VIEW Pin 1_ Pin 4 Left side M Right side LL o_o Cable insert end 35 DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 13 LG MASTER K SERIES PLC TO PC S CA 03
3. 2 DB9 MALE Shield Wire PINOUTS 55 7 COMMUNICATION CABLES 7 33 BAUMULLER DRIVE RS485 2 WIRE TO PC S CA 042B 00 NS BAUMULLER PC S SIDE DRIVE gt I u LI DB9 MALE Shield Wire RS485 DB9 MALE RS485 2 WIRE SIGNALS Pin 2 f SIGNALS 1 TX 2 DB9 MALE Shield Wire PINOUTS 56 7 COMMUNICATION CABLES 7 34 THOMSON TECHNOLOGY CONTROLLER TO PC S CA 117 00 THOMSON TECHNOLOGY PC S SIDE 8 PIN MODULAR CONNECTOR RS485 Shield Wire SIGNALS Pin RX 1 DB9 MALE RS485 SIGNALS 2 TX 8 PIN MODULAR CONNECTOR Shield Wire PINOUT FRONT VIEW S Cable insert end R H S VIEW Pin 1 Pin 8 Left side Right side LUN B Cable insert end 57 DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 35 PC CABLE
4. 7 COMMUNICATION CABLES AROMAT FP1 TO PC S CA 015B 00 ARPMAT FP1 A SIDE PC S SIDE DIN CONNECTOR MALE RS485 Shield Wire SIGNALS DB9 MALE RS485 Pin SIGNALS SG TX RX 1 TX 2 TX DIN CONNECTOR Shield Wire PINOUTS 28 RX DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 6 AROMAT FP2 TO PC S CA 015D 00 PC S SIDE Shield Wire DB9 MALE RS232 SIGNALS X Shield Wire to DB9 body 29 DB9 MALE PINOUTS o eoe fe e e 000006 O1 7 COMMUNICATION CABLES CALISTO PLC TO PC S CA 090 00 PC S SIDE lay 2 mtr I DB9 FEMALE DB9 MALE RS232 Shield Wire RS232 SIGNALS SIGNALS DB9 FEMALE U DB9 MALE PINOUTS Shield Wire PINOUTS 30 7 COMMUNICATION CABLES 7 8 GE 90 SERIES PLC TO PC S CA 002 00
5. ATTACH PLC A DB15 MALE RS485 SIGNALS Pin EARTH GE 90 SERIES PC S SIDE i ste gt _ ile o CU EN Lj DB9 MALE Shield Wire RS232 N SIGNALS TX 1 2 3 4 5 6 7 8 co 10 11 12 TX 13 14 DB15 MALE PINOUTS jO eo or oo RX 15 DB9 MALE Shield Wire PINOUTS 31 7 COMMUNICATION CABLES 7 9 GE VERSAMAX PLC TO PC S CA 002B 00 PC S SIDE GE VERSAMAX rn SIDE L _ Ly DB9 MALE mE DB9 MALE SIGNALS SIGNALS X DB9 MALE Shield Wire PINOUTS 32 7 COMMUNICATION CABLES 7 10 GE VERSAMAX PLC TO PC S CA 002A 00 GE VERSAMAX GA TT eo PC IAA N 8 PIN MODULAR CONNECTOR RS232 SIGNALS SG S SIDE DB9 MALE RS232 SIGNALS 8 PIN MODULAR CONNECTOR PINOUTS FRONT VIEW Pin 1 Left side Cable insert end
6. 1 If both the drivers are downloaded at power up Protocol converter polls for PLC1 COM1 device OK LED steady on max upto 5 seconds If no device is found on this port Protocol converter waits for PC download on either of the ports OK LED blinking for 10 seconds If PC download is not established Protocol converter will again poll for PLC1 COM1 device This sequence continues till either of the communication is established 2 If communication with PLC1 COM1 device is established Protocol converter tries to connect with PLC2 COM2 device If this communication is not successful Protocol converter polls for PC download Once the project is configured in Protocol Bridge Studio software connect RS232 interface cable from PC to Protocol converter and Download PLC1 COM1 driver PLC2 COM2 driver and Project Software will ask user if the Protocol converter has to be reset Protocol converter must be reset unless user wants to download setup again IMPORTANT 1 When user wants to establish PC communication on one port communication on the other port should not interrupt PC communication It is advised that communication on the other port be stopped to ensure error free PC communication PC download scheme for PC S models with Bootblock version 2 00A PC S configured by either of the following two methods METHOD I 1 Connect configuration Cable and power cables to PC S 2 Apply power to PC S 3 Download PLC1 driver PLC2
7. DB15 MALE RS485 TOSHIBA T2 LINK PORT SIDE CZ D PC S SIDE Shield Wire SIGNALS Pin RX DB9 MALE RS232 Pin SIGNALS 1 TX 1 2 3 4 5 6 7 8 co O 2 N 13 14 15 DB15 MALE PINOUTS eeeeseeese 0 000000 zx O Shield Wire 50 DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 28 TOSHIBA T2 PLC TO PC S CA 019B 00 TOSHIBA T2 PC S SIDE IDE C DB9 MALE RS485 DB9 MALE RS232 Shield Wire SIGNALS SIGNALS DB9 MALE Shield Wire PINOUTS Note These details are also applicable to Siemens S7 300 51 7 COMMUNICATION CABLES 7 29 TOSHIBA VF S7 TO PC S CA 050 00 TOSHIBA VF S7 PC S SIDE gt 8 PIN MODULAR DB9 MALE CONNECTOR RS232 Shield Wire RS232 SIGNALS A f Y V Shield Wire 8 PIN MODULAR CONNECTOR DB9 MALE PINOUTS FRONT VIEW R H S VIEW PINOUTS z Pin 1 Il Pin 8 f Left side Right side SI
8. Device has no power Cable fault Wrong Communication Parameters Download from PC Download from PC is described in Chapter 3 may become slightly slow for some drivers If user faces such problems while downloading setup user can use this alternative method 1 Pins 3 and 4 on any one of PC S port should be shorted at power on Wait for atleast 1 second After the OK LED starts blinking remove the short Now PC S permanently waits for download from PC Connect RS232 Interface cable to any of the ports 2 Download PLC1 driver PLC2 driver and project Setup Software If someone encounters problems to run the setup software in Windows 95 environment please check details of error message If error message shows Protocol converter caused an invalid page fault in module COMCTL32 DLL at 014f bfbd3ad0 This may be due to older version of COMCTL32 DLL stored in Windows System directory To solve the problem please follow the steps given below 1 tem 2 Copy COMCTL32 DLL on a floppy from any other Microsoftt Windows98 Operating Sys Restart the PC in MS DOS mode 59 Hardware Test using Protocol converter Setup Software Protocol converter Setup Software provides a Hardware testing feature to confirm that communication ports of Protocol converter are functional User can test all three signal levels on both the ports one by one This feature is supported for Boot block version 2 00C or higher One port of
9. CA 026A 00 TELEMECHANIQUE nn SIDE bx PC SSIDE TA sh DN MINIDIN 8 PIN MALE RS485 Shield Wire SIGNALS A B DB9 MALE RS485 Pin SIGNALS 1 TX 2 TX RX Shield Wire 8 PIN MINIDINCONNECTOR PIN OUTS 47 DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 25 TOSHIBA T1 LINK PORT TO PC S CA 046A 00 TOSHIBA T4 LINK ai SIDE a WIRE OUTS DB9 MALE SIGNAL FROM PLC Shield Wire RS485 SIGNALS Pin SIGNALS RX YELLOW TX TX GREEN SG BLACK WHITE BLUE Shield Wire DB9 MALE PINOUTS 48 7 COMMUNICATION CABLES 7 26 TOSHIBA T1 PLC TO PC S CA 019A 00 TOSHIBA T1 PC SIDE SIDE MINIDIN 8 PIN MALE DB9 MALE RS485 Shield Wire RS485 SIGNALS Pin SIGNALS 1 2 Shi M DRE 8 PIN MINIDIN CONNECTOR PIN 5 E PINOUTS OUTS 49 7 COMMUNICATION CABLES 7 27 TOSHIBA T2 LINK PORT TO PC S CA 046B 00 ATTACH PLC
10. eee eeeee u 38 7 COMMUNICATION CABLES 7 16 MODICON MICRO CONTROLLER TO PC S CA 009B 00 MODICON CONTROLLER SIDE PC S SIDE E To 1j I s Dy N 8 PIN MODULAR CONNECTOR RS232 SIGNALS Pin 1 2 Shield Wire DB9 MALE RS232 Pin SIGNALS 1 2 EARTH 8 PIN MODULAR CONNECTOR Shield Wire PINOUTS FRONT VIEW Cable insert end R H S VIEW Cable insert end 39 DB9 MALE PINOUTS Right side 7 COMMUNICATION CABLES 7 17 MOISTURE ANALYSER TO PC S CA 098 00 PC S SIDE ran LA Bu WIRE OUTS DB9 MALE SIGNALS FROM PLC Shield Wire RS232 SIGNALS Pin SIGNALS RXD YELLOW TXD GREEN SG BLACK DB9 MALE PINOUTS 40 7 COMMUNICATION CABLES OMRON CQM1 PLC TO PC S CA 006B 00 OMRON CQM1 SIDE if 4 a PC S SIDE i ATTACH PLC DB9 MALE RS232 Shield Wire SIGNALS EARTH DB9 MALE RS232 SIGNALS
11. FOR PC S ne e o a a alc DB9 FEMALE DB9 MALE RS232 Shield Wire RS232 SIGNALS Pin SIGNALS 1 2 8 9 DB9 FEMALE V DB9 MALE PINOUTS Shield Wire PINOUTS S8 8 TROUBLE SHOOTING GUIDE LED Indicators Protocol converter has three LEDs and two optional Error bits to indicate any possible problem in the sys tem When the system is communicating with two Devices STATUS LED is steady ON PLC1 and PLC2 LEDs are blinking Error bits are OFF PLC1 LED Status Description Blinking Communication on PLC1 is OK Off No Communication on PLC1 due to Device fault No power to Device Cable fault Wrong Communication Parameters OK LED Status Description Off No power to Protocol converter Fast Blinking Protocol converter is waiting for PC download Slow Blinking Communication error on PLC1 port Error may be due to Device Fault No power to either of the device Cable fault Wrong Communication Parameters Steady on Communication OK on PLC1 port PLC2 LED Status Description Off No communication on PLC2 Fast Blinking Communication with device on PLC2 is OK Slow blinking Protocol converter is trying to Communicate with the Device on PLC2 Device not re sponding due to
12. control word is disabled then block transfer is a continuous process A block of data is fetched from one device and transferred to the other device The amount of data to be transferred Number of words depends on Block definition in Block Definition Area in Configuration Software One block is executed at a time A cycle consists of execution of blocks from 1 to n Execution of blocks is performed as follows Block 1 4 Block 2 Block 3 Block 4 Block n When Control word is enabled it decides which block has to be executed by writing a specific data in the control word Please refer to Example 4 1 for description on defining Blocks in Master Master configuration 14 4 UNDERSTANDING PROTOCOL CONVERTER Example 4 1 Master to Master configuration This configuration can be used to make Rockwell PLC function as a Master at PLC1 Config ure AB DF1 protocol for COM1 select Rockwell Micrologix 1000 Series PLC Configure COM2 as Modbus Master RTU Once protocols and devices selected for COM1 and COM2 then click on Configure at the Menu available at Bottom side of the protocol bridge studio configuration soft ware screen Then new spread sheet will be opened Now user has to enter all the following details Words defines number of registers coils to be read written between two devices Source PLC Source device for data availability Source ID Address of the source device Source address Reg
13. driver and project within 10 seconds after power on METHOD II 1 Short pins 3 and 4 on PLC1 port of PC S for at least 1 second after power on Remove the short Now PC S permanently waits for PC download Connect PC download cable 2 Download PLC1 driver PLC2 driver and project The unit will automatically return to normal operation mode after a download cycle Ifthe user wants to perform another download user has to bring the unit back into configuration mode using Method or Method II 13 4 UNDERSTANDING PROTOCOL CONVERTER 4 1 Protocol converter Modes Protocol converter has two modes of operation Master Master and Master Slave Before explaining these modes further Master and Slave concept should be explained Master Master is a Device which initiates communication Slave Slave is Device which processes Master s query takes necessary action and responds to the query if necessary 41 1 Master Master configuration In this mode both Protocol converter ports PLC1 amp PLC2 are master in nature and devices connected on these ports are slave Protocol converter ports initiate communication when the proper Protocol con verter Device communication cable is attached Data is transferred in blocks This transfer can either be a continuous process or as per requirement A control word Section 4 4 present in device on either side enabled from Protocol bridge studio Setup Software can control the block execution When
14. i h Left side Right side 9 TI ei e B i bed e 9e es es Cable insert Cable insert end end 24 7 COMMUNICATION CABLES AB MICROLOGIX SERIES PLCs TO PC S CA 027A 00 AB MICROLOGIX e SIDE Im MINIDIN 8 PIN MALE RS232 Shield Wire RS232 SIGNALS Pin SIGNALS 1 2 VV 8 PIN MINIDIN CONNECTOR PINShield Wire OUTS 25 DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 3 A B SLC DF1 PORT TO PC S CA 027B 00 AB SLC SIDE PC S SIDE DB9 FEMALE DB9 MALE RS232 Shield Wire RS232 SIGNALS SIGNALS DB9 MALE PINOUTS DB9 FEMALE Shield Wire to DB9 body PINOUTS 26 7 COMMUNICATION CABLES 7 4 AROMAT FPO FPM TO PC S CA 015A 00 AROMAT FPO SIDE PC S SIDE TC MINIDIN 5 PIN MALE RS232 Shield Wire SIGNALS SG KIL Shield Wire 5 PIN MINIDIN CONNECTOR PIN OUTS 27 DB9 MALE RS485 Pin SIGNALS DB9 MALE PINOUTS
15. share data through Protocol converter Protocol converter communicates with a device to get the information required by the device connected on the other port The device that requires data is called Destination Device and the device that provides data is called Source Device Information could be value of a PLC register status of a PLC coil Command from Source Device to Destination Device to perform any action at the destination end 3 2 Protocol converter Operation Configuration and Communication Protocol converter can communicate with any two devices using appropriate cables and configuration Microsoft Windows based configuration software Protocol Bridge Studio Setup configures the Protocol converter unit Configuration means making the Protocol converter unit work as per system requirements Complete configuration for a Protocol converter using the Protocol bridge studio Setup is termed as a Project A Project consists of Devices to be attached on two ports Communication settings for two ports to communicate with two devices Register addresses for data transfer Conditions for data transfer etc Protocol converter can now communicate with the specified devices without any change in the Protocol converter hardware To communicate with a device Protocol converter needs Communication Drivers for the devices and Protocol converter Device communication cables Each Device has a unique and predefined protocol for c
16. 7 00 LG MASTER PLC SIDE PC S SIDE Tl DB9 MALE RS232 Shield Wire SIGNALS DB9 MALE RS232 SIGNALS Shield Wire DB9 MALE PINOUTS 36 7 COMMUNICATION CABLES 7 14 MITSUBISHI FX SERIES PLC TO PC S CA 008B 00 MITSUBISHI FX PC S SIDE PLC SIDE DB9 MALE DB25 MALE RS485 Shield Wire RS485 SIGNALS U 5 in SIGNALS RX TX TX SG SG ao CO N DO A WIN SG RX DB9 MALE Shield Wire PINOUTS C3 e DB25 MALE PINOUTS OY e 37 7 COMMUNICATION CABLES 7 15 MITSUBISHI FX0 PLC TO PC S CA 008A 00 PC SSIDE MITSIBISHI FX0 PLC E N SIDE MINIDIN 8 PIN MALE DB9 MALE RS485 Shield Wire RS485 SIGNALS Pin SIGNALS RX 1 TX RX 2 SG TX Lj TX V V Shield Wire 8 PIN MINIDIN CONNECTOR PIN DB9 MALE OUTS PINOUTS
17. C1000 4 3 EN55011 CISPR A CE cUL 105mm L X 40mm D X 51mm W DIN RAIL mounting 125 g approximately 2 HARDWARE 2 1 Dimensional Details and Mounting Instructions Protocol converter unit can be mounted on a back panel or on a DIN rail or can be left hanging Each Protocol converter unit comes with a separate DIN rail plate when it is packed User will have to attach the DIN rail plate to the unit if it has to be mounted on a panel or DIN rail If it has to be left hanging make sure to screw the cables to the DB9 connectors on the Protocol converter unit DIN rail plate also has the provision to screw the unit to the back panel Following drawing shows how to attach the DIN rail plate to DIN rail Slot for clamp clamp RS232 RS485 CMOS N PC S DIN rail DIN rail e clip Following drawing shows the dimensional details of Protocol converter with DIN rail plate 50 5mm 40mm 104 4 mm Screw RS232 RS485 H ol e CMOS 2 HARDWARE Following drawing displays how the unit can be mounted on the DIN rail PLC1 OK PLC2 PC S 24VDC f 10 DC 24VDC pun 10 EARTH RS232 RS485 CMOS RS232 RS485 Follow instructions given below 1 Attach the DIN rail plate to the unit using the clamps on the DIN rail plate 2 Pull out the clip of the plate 3 Put the unit on the DIN rail 4 Push the clip in to secure the unit on the DIN rail Following dr
18. ETER SIDE n DB9 MALE DB9 MALE RS422 Shield Wire RS232 SIGNALS Pin SIGNALS 1 TX 2 Shield Wire DB9 MALE PINOUTS 44 7 COMMUNICATION CABLES 7 22 SIEMENS S7 300 SERIES PLC TO PC S CA 077 00 SIEMENS S7 300 SIDE PC S SIDE E RS485 SIGNALS Pin 1 2 Shield Wire j DB9 MALE RS485 Pin SIGNALS TX Shield Wire to DB9 body ote These details are also applicable to Siemens S7 200 45 DB9 MALE PINOUTS 7 COMMUNICATION CABLES 7 23 SIEMENS STEP 7 MICRO S7 200 PLC TO PC S CA 029 00 SIEMENS S7 200 SIDE PC S SIDE gt DB9 MALE RS485 Shield Wire RS485 SIGNALS SIGNALS TX TX RX DB9 MALE Shield Wire to DB9 body PINOUTS Note These details are also applicable to Siemens S7 300 46 7 COMMUNICATION CABLES 7 24 TELEMECHANIQUE TSX 07 TSX 37 PLC TO PC S
19. GNALS CMOS TXD Cable insert Cable insert end end 32 COMMUNICATION CABLES 7 30 METTLER TOLEDO TO PC S CA 103 00 METTLER TOLEDO ao SIDE WIRE OUTS DB9 MALE SIGNAL FROM MET Shield Wire RS232 TLER TOLEDO SIGNALS Pin SIGNALS RXD YELLOW GREEN BLACK Shield Wire DB9 MALE PINOUTS 53 7 COMMUNICATION CABLES 7 31 SARTORIUS TO PC S CA 104 00 SATORIUS PC S SIDE COM1 SIDE I ci WIRE OUTS DB9 MALE SIGNAL FROM SATO Shield Wire RS232 RIUS SIGNALS Pin SIGNALS RXD YELLOW TXD GREEN SG BLACK Shield Wire DB9 MALE PINOUTS 54 7 COMMUNICATION CABLES 7 32 BAUMULLER DRIVE RS485 4 WIRE TO PC S CA 042A 00 NS BAUMULLER PC S SIDE DRIVE gt I u LI DB9 MALE Shield Wire RS485 DB9 MALE RS485 4 WIRE SIGNALS Pin f SIGNALS 1 TX
20. ISHI FX0 PLC TO PC S CA 008A 00 AAA eoo 10 11 12 12 13 14 14 14 16 18 19 19 20 20 20 21 22 22 22 23 23 23 23 24 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 7 16 MODICON MICRO CONTROLLER TO PC S CA 009B 00 7 17 MOISTURE ANALYSER TO PC S CA 098 00 7 18 OMRON CQM1 PLC TO PC S CA 006B 00 7 19 OMRON CQM CPM CMOS PORT TO PC S CA 006 A 00 7 20 RHEONIC MASS FLOW METER TO PC S CA 091A 00 7 21 RHEONIC MASS FLOW METER TO PC S CA 091B 00 7 22 SIEMENS 87 300 SERIES PLC TO PC S CA 077 00 7 23 SIEMENS STEP 7 MICRO S7 200 PLC TO PC S CA 029 00 724 TELEMECHANIQUE TSX 07 TSX 37 PLC TO PC S CA 026A 00 725 TOSHIBA T1 LINK PORT TO PC S CA 046A 00 7 26 TOSHIBA T1 PLC TO PC S CA 019A 00 7 27 TOSHIBA T2 LINK PORT TO PC S CA 046B 00 728 TOSHIBA T2 PLC TO PC S CA 019B 00 7 29 TOSHIBA VF S7 TO PC S CA 050 00 7 30 METTLER TOLEDO TO PC S CA 103 00 731 SARTORIUS TO PC S CA 104 00 732 BAUMULLER DRIVE RS485 4 WIRE TO PC S CA 042A 00 7 33 BAUMULLER DRIVE RS485 2 WIRE TO PC S CA 042B 00 7 34 THOMSON TECHNOLOGY CONTROLLER TO PC S CA 117 00 7 35 RS232 CABLE FOR PC S 8 TROUBLESHOOTING GUIDE ss 9 SUPPORTED PLC S LIST FOR PROTOCOL CONVERTER PC S 39 40 41 42 43 44 45 46 47 48 49 S0 51 52 53 54 55 56 1 INTRODUCTION 1 1 Purpose of this Manual The intention of this Operation Manual is to provide a guide f
21. Protocol converter unit is connected to PC using the standard RS232 Interface cable Other port test port will be tested by the software using the LOOP BACK method Software sends a test string HELLO to the Protocol converter unit This string is used to test other port by LOOP BACK method If the port is functional Protocol converter send the same string back to the software User must test all three signal levels on both the serial ports Test Setup 1 Protocol converter unit PC S 2 Protocol bridge studio Setup Software 3 RS232 Interface cable 4 24VDC power supply Di Shorting Link s Test Instructions Apply power to Protocol converter unit Launch Protocol bridge studio Software Select Hardware Test menu from the menu bar to enter hardware test mode Select a Protocol converter communication port for the test Attach RS232 Interface cable to the other port Select Signal level Either of the following instructions will be displayed in the test window For RS232 signal test Short pins 2 3 on the test port For RS422 RS485 signal test Short pins 1 4 and 8 9 on the test port For CMOS signal test Short pins 3 7 on the test port 8 Short links according to the selected signal level 9 Click on Start Test 10 Send String box will display HELLO 11 If test port and the RS232 levels of the port attached to PC are functional same string will be received and displayed in the Rece
22. User Manual Protocol converter PC S Serial to Serial UMPCSA BrainChild Rev 1 0 06 2006 COPYRIGHT NOTICE This manual is a publication of Brainchild Electronics Co Ltd and is provided for use by its customers only The contents of the manual are copyrighted by Brainchild Electronics reproduction in whole or in part for use other than in support of Brainchild Electronics equipment is prohibited without the specific written permission from Brainchild Electronics SERVICE If service is required then pack the unit in its original packaging container or if unavailable any suitable rigid container If a substitute container is used surround the unit with shock absorbing material damage in shipment is not covered by the warranty Include a letter with the unit describing the difficulty and Hardware Revision and Software Version Send to the following address Brainchild Electronic Co Ltd 6F 209 Chung yong Road Nan Kang Dist Taipei Taiwan R O C Tel 886 2 27861299 Fax 886 2 27861395 Email sales brainchild com tw All returns will be tested to verify customer claims of noncompliance with the product warranty Improper return packaging which makes verification impossible will void the warranty If noncompliance is verified and is not due to customer abuse or the other exceptions described with product warranty Brainchild Electronics will at its option repair or replace the Product returned to it freight prepaid whic
23. awing displays how the unit can be mounted on a back panel RS232 RS485 PC S DC 24VDC ac 1096 EARTH RS232 RS485 Follow instructions given below 1 Attach the DIN rail plate to the unit using the clamps on the DIN rail plate 2 Insert screws in the 4 holes provided on the DIN rail plate 3 Tighten the screws to secure the unit in the panel 2 HARDWARE 2 2 Power Requirements Protocol converter is a 24VDC powered unit Power should be applied on the PCB Terminal block on the Protocol converter unit Power rating is 24VDC 10 100mA max Please follow the instructions given below when making power supply connections Follow the sticker wiring diagram on the unit which shows terminals for the positive DC negative DC and ground To make a connection strip about 1 4 6mm of insulation of the wire and turn the connector screw counter clock wise until the gap is wide open Insert the wire all the way in and turn the screw clockwise until it is tight Wire lengths should be minimum Wires should run in pairs with a neutral or common paired with a live or signal wire A fuse should be connected from outside wherever required for protocol converters Protocol converter products are housed in a molded ABS plastic case which eliminates any electrical shock hazard Hence Safety ground is not required to be connected to the chassis of the unit The DC ground is not directly coupled to Earth ground internall
24. ba ASD s Toshiba T Series PLCs Toshiba T Series Link Port PLCS Uss protocol Yaskawa Drives 4 ES SELECTED PROTOCOL PLC Name AB DFI Full Duplex Master PLC Model MicroLogix M1 000 Click Configure Project button on Toolbar To Configure the Project 61 9 SUPPORTED PLC S LIST FOR PROTOCOL CONVERTER PC S COM2 PLC2 Com Protocol H Modbus H Modbus Slave H OMRON HOST LINK E Uss protocol E Yaskawa Drives SELECTED PROTOCOL PLC Name Modbus PLC Model RTU Click Configure Project button on Toolbar Tg Configure the Project 62
25. different PLC protocols this numbers will vary During configuration once u select the source PLC then if you are trying to enter more number of registers then particular PLC protocol supports then you will get error message saying that proto col or protocol buffer is not not sufficiant In this case decrease the number at words and try once again In above example request from Modbus Master is executed as follows 1 Rockwell PLC acting as Master sends command to Protocol converter for setting Bit register B3 000 000 to 1 2 Protocol converter searches defined Blocks and checks whether this coil is mapped to any coil in the Modbus Slave In example 4 2 Bit register B3 000 000 is mapped to Modbus slave coil 100001 in Block 1 Protocol converter accepts this command and sets Modbus slave coil 100001 ON If Master sends a command to read write a register coil not defined in any Block then Protocol converter sends exception response to master NOTES 1 If multiple registers coils are to be read or written in one command then all the regis ters coils have to be defined in one Block 2 As Protocol converter Setup Software is common for both the Protocol converter Mod bus master Master and Master Slave modes titles in the Block Definition Area source PLC and Destinatino PLC may not be appropriate when using Protocol converter in Master Slave mode Hence please neglect naming convention in Master Slave Mode 3 Maxim
26. f the Protocol converter setup software disk be created and stored in a safe place 1 Launch the Windows operating system 2 Insert the setup CD into CD drive di Point to the start button then click RUN 4 In the command line box enter E Disk1 setup exe Click OK This will launch the Protocol converter installer 5 Follow the instructions to complete setup Or else browse the CD search for the setup file and then execute the file then follow on screen instructions to complete the setup Protocol Bridge Studio Project Each Protocol converter must be configured before connecting it to the PLC Protocol bridge studio configuration software allows the following 1 Create a new Protocol converter project Select protocols for both communication ports of Protocol converter Create blocks for data to be shared Set Communication Parameters for both the ports Set Control Word Optional Set Error Indication Bit etc Optional 2 Downloading Download Project Download drivers Download new firmware if required only for upgrading 3 Upload Project The existing project in the Protocol converter module can be viewed edited 4 Upload System Data This option enables viewing of version number status of firmware drivers used and boot block 22 6 CONNECTION DIAGRAMS 6 1 Wiring Diagrams User must ensure correct wiring for problem free operation of Protocol converter Each device being con nected
27. h fail to comply with the foregoing warranty provided Brainchild is notified of such noncompliance within the one year warranty period ASSISTANCE This manual is designed to provide the necessary information for trouble free installation and operation of your new Protocol conveters However if you need assistance please call Brainchild Electronic Co Ltd at 886 2 27861299 Ext 613 or visit our web site at www Brainchild com tw MANUAL REVISION If you contact us in reference to this manual please include the following document number Name User Manual For PC S Document UMPCSA 06 2006 Revision 1 0 UM PCSA 06 2006 20 06 2006 Manual first edition Warranty Certificate For New product This product is warranted against defects in materials and workmanship for a period of 12 months from the date of shipment to Buyer For Rectified Products Any product that will be replaced will have Warranty for 6 months or upto Original Product War ranty period whichever is greater The warranty is limited to repair or replacement of the defective unit at the option of the manufacturer This warranty is void if the product has been altered misused dismantled or otherwise abused ALL OTHER WARRANTIES EXPRESSED OR IMPLIED ARE EXCLUDED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE MAINTENANCE amp SERVICE There are no parts that can be serviced by the user Service shou
28. in Master Slave configuration 16 4 UNDERSTANDING PROTOCOL CONVERTER Example 4 2 Modbus Slave configuration This configuration can be used to make Rockwell PLC as a Master Configure Protocol converter COM1 ports as DF1 Protocol Allen Bradley SLC 500 Series COM2 Protocol Modbus Slave Once entered into configuration source PLC will be shown as Modbus Slave and Destimation PLC as AB DF1 Rockwell PLC No need for the user to select source and destination PLC Please neglect the naming conventions of source and destination when you are using Master Slave configuration File Edit View Communication Hardware Test Help Block No Words Source PLC Source Source Address Destination PLE Destinatio Destination Addr Repea 5 Modbus Slave 1 100001 ABDFI Ful Ou 1 6003 000 00 Modbus Slave 1 300001 n DEL Ful Ou 1 MOO O00 ali Block 1 maps 5 coils of Rockwell PLC starting from B3 000 000 to Modbus Slave coils starting from 100001 Block 2 maps 7 registers of Rockwell PLC starting from N7 000 to Modbus Slave registers starting from 300001 Here Words field contains 5 coils in block 1 and 7 registers in block 2 so if protocol and Protocol converter buffer permit Modbus Master can access 5 coils 7 registers in one command For ex In case of Toshiba PLC the limitation is 28 registers coils This is the limitation in Toshiba protocol So max of 28 registers coils can be exchanged Simillarly for
29. ister coil address in the source device for data transfer Destination PLC destination device for data transfer Destination ID Address of the destination device Destination address Register coil address in the destination device for data transfer NOaORWN gt Fie Edt View Communication Hardware Test Help Block No Words SourcePLC Source Source Address Destination PLC Destination Destination Addr Repea 7 ABDFL FulDu 1 MOSQ Modus 400001 Modbus 400010 AB DFL FulDu NORD ul Block 1 Protocol converter reads 7 words starting from N7 0 from Rockwell PLC and write these seven words data to Modbus Master device in holding registers starting from 400001 Block 2 Protocol converter reads Modbus Master holding register 400010 and writes it to Rockwell Mas ter integer register N7 020 As this example has only two blocks Protocol converter will execute Block 1 after executing Block 2 continuing this cycle forever Notes 1 Maximum 255 blocks can be configured in any mode 2 In Master Master configuration typical time required to execute one block is 75 msec approx Please refer to Example 4 2 for description on defining register coil maps in Master Slave configuration 15 4 UNDERSTANDING PROTOCOL CONVERTER 4 1 2 Master Slave configuration In this mode one of the Protocol converter ports is a master and other is the slave so the devices con nected on these ports are slave and
30. ived String box Result will be displayed in the Test Result window 12 Now repeat the steps 6 to 11 for testing other two signal levels on the same port 13 After all three signal levels are tested for current test port remove the links 14 Now selected port is completely tested User must test the second port for all the three signal levels Select appropriate port in the test window 15 Repeat steps 4 to 12 NOaRWN gt Important Notes T User must ensure that the RS232 cable used for testing is as per specifications given in the User Manual and completely functional 2 User must ensure that the communication port of PC is functional 3 User must follow the instructions as per the selection made If wrong pins are shorted while test ing correctness of the tests conducted is not assured 60 9 SUPPORTED PLC S LIST FOR PROTOCOL CONVERTER PC S COMI PLC1 Protocol Bridge PC 5 Project EE EEE E El Fl El Communication Hardware Test Help gt AB DF1 Full Duplex Master Allen Bradley DH485 SLC 500 Series Aromat FP Series PLCs Calisto Discovery Panel GE 90 series PLCs Idec Micro PLCs K1338 SLAVE KETENCE Kw L MASTER K 805 3005 PLCs Mitsubishi FX PLCs Messung XMP 8 METTLER TOLEDO Madbus Moisture Analyser OMRON HOST LINK E RHEONIK Mass Flowmeter SARTORIUS Siemens 57 300 Series PLCs Siemens Step Micro PLES Telemecanique T5X 07 PLCs Toshi
31. l device connected to Protocol converter Using this bit fault at the PLC1 end can be reported to PLC2 Device and fault at PLC2 end can be reported to PLC1 Device When communication error occurs on PLC1 Protocol converter sets error bit in PLC2 device Error Indication Bit can only be used in Master Master mode In Master Slave mode any error can easily be detected by a communication time out on the Master Error indication bit can be enabled using Protocol converter configuration software Normally Error bit is disabled for a New project It can be enabled just by clicking on the check box in the setup software Error indication bit can be enabled in both or any one of the Devices connected to Protocol converter Error Indi cation bit is OFF to indicate error free communication In case of communication error on PLC2 Protocol converter sets error bit on PLC1 port and vice versa 4 6 Communication Parameters Communication Parameters of Protocol converter can be set from configuration Software This enables Protocol converter to readily communicate with any device Communication parameters for PLC1 and PLC2 ports can be configured independently This feature allows changes in Baud rate Number of stop bits Parity etc at any time without downloading the driver for that particular device After the driver for a particular device is downloaded the communication parameters can be changed simply by selecting new communication parameters and dow
32. ld be performed on a unit substitution basis only Do not attempt to remove replace or service any printed circuit board components or any hardware software related with display product If problem within the display product occurs contact the factory for service information or repair Preliminary Protocol converter is a versatile gateway Data sharer with Windows based configuration Software This manual will help you to safely install configure and operate protocol converter Allthe safety warnings and precautions must be followed to ensure proper unit performance and personal safety Warnings used in this manual Danger Warnings are used to indicate situations locations and conditions DANGER x that can cause serious injury or death Caution Warnings are used to indicate situations and conditions that can CAUTION AN cause operator injury and or unit damage IMPORTANT Protocol conveters are intended to be Gateways Data sharer devices that can also take control actions on request of device being connected It is assumed that the user is well acquainted with the PLCs Inverters Controllers being used Any mechanical or electrical modification to the unit will void all warranties Contents 1 INTRODUCTION anne 1 1 Purpose of this Manual 1 2 Introduction to Protocol converter 1 3 Protocol converter Applications 1 4 Protocol converter Specifications 2 1 Dimensional Details and Mounting Instructions 2 2 Power Requi
33. master respectively Blocks do not control data transfer in this mode Data transfer takes place only when Master Device connected on slave port of Protocol converter sends a request to read write data This mode requires mapping registers coils for data transfer Mapping means defining one or multiple registers coils in the Slave Device corresponding to one or multiple reg isters coils in the Master Device Mapping can be done using the Block definition area so in this mode any Block is used for mapping registers coils of the two devices In Block Definition area Words Field indicates number of registers coils to be mapped linearly from the starting addresses of the Source Device to the Destination Device Maximum number of registers coils that can be mapped is 255 but this does not mean that Master Device has to read write 255 registers coils in one command For example if user wants to map register DMO to DMI he has to define a single block of 10 registers starting from DMO In one command Master can read write registers coils from one Block only so if multiple registers are to be read written using a single command Words also limits the maximum number of registers coils to be read written Number of registers to be read written in one command also depends on protocol of BOTH the devices Buffer capacity of Protocol converter Please refer to Example 4 2 for description on defining register coil maps
34. ng on the system require ments A new project can be created as follows 1 Define the Protocol converter System 1 1 Protocol of Device s connected to PLC1 1 2 Protocol of Device s connected to PLC2 2 Load Microsoft Windows based Protocol bridge studio Setup software 3 Select devices to be connected on two ports 4 Define Blocks for data transfer 5 Setthe communication parameters for the selected devices 6 Set conditions for block execution if required Repeat Cycle Control Word etc 7 Apply power to Protocol converter 8 Download the Project and Communication Drivers into Protocol converter 9 Remove Configuration Cable from PLC1 Connect Protocol converter Device cable to PLC1 10 Test system 21 5 CONFIGURATION SOFTWARE 5 1 System Requirements Protocol converter Setup software runs on a PC AT compatible computer with the following specifications Windows Version Microsoft Windows 9x 2000 Processor PENTIUM or higher Hard disk Space 5 MB or more Serial Mouse Required RAM 16 MB or more Display resolution 800 X 600 VGA or better Display colors 16 bit color 5 2 Installation Instructions Use the following procedure to install the Microsoft Windows based Protocol bridge studio setup software This installation shows the procedure to install the software from a CD Disk on drive E On ma chines with different drive configurations change the names as needed It is recommended that a backup disk o
35. nloading the same project 4 7 Status LEDs Protocol converter has 3 status LEDs located near PLC1 side These LEDs indicate communication status and Protocol converter operation Three LEDs are identified as PLC1 OK and PLC2 PLC1 and PLC2 LEDs indicate communication status on two ports whereas OK LED indicates the Protocol converter mode either configuration or operation PLC1 LED Status Description Blinking Communication on PLC1 is OK Off No Communication on PLC1 due to Device fault No power to Device Cable fault Wrong Communication Parameters OK LED Status Description Off No power to Protocol converter Fast Blinking Protocol converter is waiting for download from PC Slow Blinking Communication error on PLC1 port Error may be due to Device Fault No power to either of the device Cable fault Wrong Communication Parameters Steady on Communication OK on PLC1 port 20 4 UNDERSTANDING PROTOCOL CONVERTER PLC2 LED Status Description Off No communication on PLC2 Fast Blinking Communication with device on PLC2 is OK Slow blinking Protocol converter is trying to Communicate with the Device on PLC2 Device not re sponding due to Device has no power Cable fault Wrong Communication Parameters 4 8 Project Setup This Chapter explains how a simple Protocol converter project can be created and tested To develop a Protocol converter system select appropriate Protocol converter model dependi
36. ocol on COM2 of Protocol conveter Correct cables are required Once Protocol converter configured and download project from PC from Protocol bridge studio software then Protocol converter exchange data between the two devices as per configuration 1 INTRODUCTION 1 3 Protocol converter Applications Protocol converter connects one field device to another over a serial link irrespective of their protocols User can define the blocks of registers to be fetched from one device and to be transferred to the other Protocol converter units have been used in various different applications across many industries The typi cal configurations include the followings PLC as Master on the Modbus network 1 4 Power Supply Communication Indications Temperature Humidity Immunity to ESD Immunity to Transients Radiated Susceptibility Emissions Certifications Dimensions Weight X Protocol Modbus RTU PID controller Protocol Converter Protocol converter Specifications 24 VDC 10 100 mA max Two ports as follows PLC1 RS232C RS422 RS485 CMOS For configuration and PLC communication PLC2 RS232C RS422 RS485 CMOS For PLC communication PLC1 LED for PLC1 port status OK LED for Protocol converter status PLC2 LED for PLC2 port status Operating 0 to 60 C Storage 40 to 90 C 10 to 90 Non condensing Level 3 as per IEC1000 4 2 Level 3 as per IEC1000 4 4 Level 3 as per IE
37. ommunication Protocol converter driver has this protocol to communicate with the desired device As two devices are connected on Protocol converter it requires two drivers for communication User MUST download Project PLC1 driver and PLC2 driver in Protocol converter before installing any system using Protocol converter Protocol converter can accept drivers and configuration data on either of the ports User needs a special RS232 Interface cable for downloading configuration from PC to Protocol converter If any change in the current working project is made user must download the changed project from PC to Protocol converter Pin details of RS232 Interface cable for are as follows DB9 Male Protocol converter DB9 Female PC 2 2 IMPORTANT NOTE AS Protocol converter HAS MULTIPLE SIGNALS ON ITS COMMUNICATION PORTS PC CABLE for Protocol converter MUST HAVE ONLY THREE RS232 SIGNALS TXD RXD AND GND AS MEN TIONED ABOVE 3 GETTING STARTED Protocol converter needs Firmware Project and TWO drivers to communicate with two devices Firmware is factory programmed If both or one of the drivers has not been downloaded in Protocol converter Proto col converter permanently waits for PC download indicated by continuous blinking of the OK LED Create project as per system requirements Select PLC1 Driver PLC2 Driver and Project for downloading PC S can be configured by following method
38. on is by use of the Control Word This feature is extremely useful for small applications where less than 17 blocks are required Control Word can be enabled or disabled in Protocol converter Configuration Normally Control Word is disabled for a New project It can be enabled just by clicking on check box in the setup software Control Word can be chosen from any of the Devices connected Control Word can only be used in Master Master mode since no continuous data transfer takes place in Master Slave mode data transfer only takes place on Master s request When the Control Word is disabled Block execution is totally controlled by Repeat Cycle settings When the Control Word is enabled Block execution is controlled using discrete bits of that word Bit O in control word controls execution of Block 1 Bit 1 in control word controls execution of Block 2 Bit 15 in control word controls execution of Block 16 When a bit is high 1 corresponding Block is executed depending on its Repeat Cycle When a bit is low 0 execution of corresponding Block is disabled 19 4 UNDERSTANDING PROTOCOL CONVERTER 4 5 Error Indication Bit This feature enables detection of communication breaks during error free communication between Protocol converter and two devices Communication breaks can occur due to no cable connection wire faults device power failure at both ends of Protocol converter An Error bit can be designated in each externa
39. or Safe installation Configuration and opera tion of serial to serial Protocol converter Read this operation manual thoroughly before installing and operating Protocol converter This document is based on information available at the time of its publication While efforts have been made to be accurate the information in this document may not cover all the details or variations in hard ware or software Features described herein may not be present in all hardwares Brainchild Electronics reserves the right to update information in this publication without prior notice 1 2 Introduction to Protocol converter Protocol converters provide interface between different devices having different communication protocols It also provides interface between same communication protocols Example Data sharer between two slaves having the same protocol Protocol conveters communicates with PLCs Inverters Controllers using RS232 RS422 RS485 2 4 wire or CMOS serial communication Configuration of Protocol converter Each Protocol converter has to be configured using Windows based configuration Software before con necting it to the PLC Configuration Protocol Computer P Converter RS232 Interface cable Normal Operation X Protocol Modbus RTU Protocol RTU Converter COMI COM2 Connect PLC with specific protocol to COM1 of Protocol converter Connect PLC or Inverter or Transmitter etc which supports Modbus RTU prot
40. rements 2 3 Communication Ports S GETTING START ED istinti 3 1 Introduction to Protocol converter 3 2 Protocol converter Operation Configuration and Communication 4 UNDERSTANDING PROTOCOL CONVERTER asen onvoor ve 4 1 Protocol converter Modes 4 1 1 Master Master configuration 4 1 2 Master Slave configuration 4 2 Multi dropping of Devices using Protocol converter 4 3 Repeat Cycle 4 4 Control Word 4 5 Error Indication Bit 4 6 Communication Parameters 4 7 Status LEDs 4 8 Project Setup 5 CONFIGURATION SORT WARE ccssssssssoossssososasassionsaisssesszensesscsscensoasensosene 5 1 System Requirements 5 2 Installation Instructions 6 CONNECTION DIAGRAMS anna 6 1 Wiring Diagrams 6 2 RS422 RS485 4 Wire connection diagram 6 3 RS 485 2 Wire connection diagram 7 COMMUNICATION CABLES FOR PC S 7 1 AB SLC DH485 PORT TO PC S CA 007 00 7 2 AB MICROLOGIX SERIES PLCs TO PC S CA 027A 00 7 3 AB SLC DF1 PORT TO PC S CA 027B 00 7 4 AROMAT FP0 FPM TO PC S CA 015A 00 7 5 AROMAT FP1 TO PC CA 015B 00 7 6 AROMAT FP2 TO PC S CA 015D 00 7 7 CALISTO PLC TO PC S CA 090 00 7 8 GE 90 SERIES PLC TO PC S CA 002 00 7 9 GE VERSAMAX PLC TO PC S CA 002B 00 7 10 GE VERSAMAX PLC TO PC S CA 002A 00 7 134 IDEC MICROS TO PC S CA 025A 00 7 12 KEYENCE KV PLC TO PC S CA 018 00 7 13 LG MASTER K SERIES PLC TO PC S CA 037 00 7 14 MITSUBISHI FX SERIES PLC TO PC S CA 008B 00 7 15 MITSUB
41. s shown below PLC1 PLC2 ports RX RS422 RS485 TX RS422 RS485 TXD CMOS RX RS422 RS485 RXD De 5VDC pO et ike RS422 85485 DO NOT USE DB9 Female Pin Description Pin Name Signal Level Description 1 TX RS422 RS485 Differential Transmit also referred as TXA 2 TXD RS232 Transmit 3 RXD RS232 CMOS Receive 4 RX RS422 RS485 Differential Receive also referred as RXA 5 GND Signal Ground common to all signals 6 5VDC DO NOT USE 7 TXD CMOS Transmit 8 TX RS422 RS485 Differential Transmit also referred as TXB 9 RX RS422 RS485 Differential Receive also referred as RXB User can convert RS485 4 wire Signal Ground system to a 2 Wire Signal Ground system by shorting following signals in the communication cable TX TX A RX B RX SG 7 SG Note If user has attached shield to Earth on Device end leave the shield open on Protocol con verter end If user has connected shield to Signal Ground on Device end connect shield to Signal Ground on Protocol converter end Upto 31 Devices can be multi dropped on RS485 port of Protocol converter 11 3 GETTING STARTED 3 1 Introduction to Protocol converter Protocol converter is a Gateway Data sharer for devices like PLCs inverters Adjustable Speed Drives and other Controllers Protocol converter has two serial ports that connect with two different devices These devices
42. side of Protocol converter So using ID s it is possible to transfer data from device 1 on port1 to device 2 of port2 18 4 UNDERSTANDING PROTOCOL CONVERTER 4 3 Repeat Cycle User can control Block execution by using the Repeat Cycle field This number decides whether the Block will be executed in each cycle Larger the number lower the priority ofthe Block Range for Repeat Cycle setting is 1 99 Repeat Cycle 1 Highest priority Repeat Cycle 99 Lowest priority Repeat cycle is important when using Protocol converter in Master Master mode If Protocol converter is used in Master Slave mode Repeat Cycle field should be kept as 1 Repeat cycle defines the number of times a Block will be skipped while executing Blocks in a sequential manner Block will not be executed for Repeat Cycle 1 cycles So if Repeat Cycle for a Block is 1 it will be executed in each cycle whereas if Repeat Cycle is 2 then this Block will NOT be executed in alternate cycles For example suppose Blocks are defined with following Repeat Cycles Block 1 Repeat Cycle 1 Block 2 Repeat Cycle 2 Block 3 Repeat Cycle 3 Block 4 Repeat Cycle 4 After power up Cycles will be executed as follows Cycle 1 Block 1 Block 2 Block 3 Block 4 Cycle 2 Block 1 Cycle 3 Block 1 Block 2 Cycle 4 Block 1 Block 3 Cycle 5 Block 1 Block 2 Block 4 4 4 Control Word Another way of controlling Block executi
43. to Protocol converter has a unique communication port Pin outs of communication ports of Proto col converter are given in section 2 3 Port details of the other devices can be found in the device manual Protocol converter has RS232 RS422 RS485 and CMOS compatible communication ports so user can directly connect any device with these communication signals This section gives wiring diagrams for connecting Protocol converter using various signal levels 1 Network of RS422 RS485 4 wire signal ground system Power 24VDC 10 Note User should add Termination resistor R 180 Ohm in Receive lines of first and last node 2 Network of RS485 2 wire signal ground system DEVICE DEVICE 2 RX ei TT Bra Power 24VDC 10 23 7 COMMUNICATION CABLES 7 1 AB SLC DH485 PORT TO PC S CA 007 00 AB SLC SIDE PC S SIDE 2 mtr 8 PIN MODULAR CONNECTOR ln DB9 MALE RS485 Shield Wire RS485 SIGNALS Pin INE Pin SIGNALS A 1 1 TX B 2 A 2 in 5 3 4 4 RX 5 5 SG SHIELD 6 6 SG 7 7 8 B 8 TX U us 8 PIN MODULAR CONNECTOR PIN Shield Wire RA OUTS FRONT VIEW R H S VIEW DB9 MALE nail PINOUTS Pin 1 IN Pin 8
44. um 255 blocks can be configured in any mode 4 In Master slave mode If somebody mapped read only registers or coils at destination end to any registers at source end it s users responsibility that these registers are not going to be written by master 17 4 UNDERSTANDING PROTOCOL CONVERTER 4 2 Multi dropping of Devices using Protocol converter Protocol converter supports multidropping on both the ports Following illustration explains multidrop ping of devices on Protocol converter ports Devices with protocols that support networking can be multi dropped on RS485 port of Protocol converter Maximum 31 devices can be networked using RS485 ports Protocol Node 1 Converter Node n wien PLC PID Controller Example 4 3 Suppose Protocol converter is used to share data between multiple Modicon PLCs Modbus Slave to multiple devices Modbus Slave Master Master mode has to be used to enable data sharing User must define Blocks for sharing data File Edit View Communication Hardware Test Help Block No Words Source PLC Source Source Address Destination PLE Destinatio Destination Addr Repea comt Modbus 1 300001 amp Com Modbu A 400001 Source PLC and Destination PLC appears as Com1 and Com2 before the name Modbus when proto cols are same on both the ports Source ID Destination ID These fields define the device ID on respective port
45. y The unit is designed to operate properly whether or not the DC ground is connected to the Earth ground We do recommend however that ifthe DC ground has to be connected to the Earth ground the Earth connection should be made to a central star point as poor site earths can introduce noise into a system Do not power Protocol converter and inductive loads with the same power supply even though there is enough immunity in the Protocol converter to withstand the transients present on these lines Avoid using power supplies with large capacitive outputs which may cause problems if power is cycled within a short time period If wiring is to be exposed to lightening or surges use appropriate surge suppression devices Keep AC high energy and rapidly switching DC wiring separate from signal wires Connecting high voltages or AC power mains to the DC input will make Protocol converter unusable and may create an electrical shock hazard to personnel Such a failure or shock could result in serious personal injury loss of life and or equip ment damage DC voltage sources should provide proper isolation from main AC power and similar Be ox DL 10 2 HARDWARE 2 3 Communication Ports Protocol converter unit has two communication ports Both the ports have DB9 type connectors and are compatible with RS232C RS422 RS485 and CMOS signal levels PLC1 also known as COM1 and PLC2 also known as COM2 have exactly the same pin outs which are a
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