Toshiba T2 Series Network Card User Manual
Contents
1. modules is recommended j 1 H mm EH Page 3 PRELIMINARY 3 External Features and Switch Settings Signal transmission indicating LEDs Station number setting switch D HAD is Tal n number O 15 When HAD is CH Stallion number 15 31 R5 405 transmission serminals 3 5 SY np use Always OFF OLY Resoonse delay selection OFF Minimum delay ON Additional delay 100 ma Station number atfsati See Maliin number setting Seibel BR BR Baudrate Page 4 PRELIMINARY 4 Specifications ITEM SPECIFICATION INTERFACE TERMINAL BLOCK COMMUNICATION STYLE HALF DUPLEX SIGNAL CONFIGURATION TXA RXA TXB RXB SYNCHRONIZATION START STOP NETWORK TOPOLOGY PARTY LINE MULTIDROP COMMUNICATION SPEED 300 600 1200 2400 4800 9600 19200 bps TRANSMISSION DISTANCE 1 KM MAX COMMUNICATION MODE RTU MODE DATA LENGTH 8 BITS STOP BITS 1 BIT PARITY EVEN ODD NONE STATION NUMBER 1 TO 31 DO NOT SELECT 0 OR 32 ERROR CHECK PARITY CRC NUMBER OF CHANNELS 1 CHANNEL Page 5 MAR 5 Modbus Module Operation 5 1 Modbus Commands When a MODBUS command is used the Modbus module translates it to the corresponding T2 register access protocol MODBUS FUNCTION CODE T2 COMMAND 01 Read Coil Status DR Read2. a Modbus slave module Do not use these registers Page 8 PRELIMINARY 6 Modbus Module Setup The Toshiba Modbus module has been used reliably as a Modbus slave for several years First it was used on Toshiba s EX100 Series PLCs and now on the T2 Series PLCs Before it can function as intended however all the DIP switches must be properly set and all wiring connections must be correct 6 1 Modbus Module DIP Switch Settings The following items are setup by DIP switches on the Modbus module e Station number e Transmission rate Baud rate e Parity Station Number The station numbers identify the controllers and must be different from each other in the network If the EX10 MML11 address is less than 15 then set the third switch HAD to the off position If the EX10 MML11 address is higher than 16 set the switch to the on position Using the STATION dial switch numbered in hexadecimal carefully set the station number Do not set the dial switch to 0 with the HAD switch off Page 9 PRELIMINARY Transmission Rate Baud Rate Select the combination of the three switches BR2 BR1 and BRO for the desired communication speed These are the 4th 5th and the 6th switches De Page 10 PRELIMINARY Parity Check Select the parity check as odd even or none Use switches 7 and 8 to set the parity PARITY PEN 7 EVN 8 ASY and DLY switches The ASY and D
3. cdd E aut SAD 16 9 Additional References urso o ei xD Exe ER NE ED Dd bated dead ihe 17 Page v PRELIMINARY 1 Overview The Modbus module ML11 is used to connect T2E T2N or EX100 PLCs to a Modbus Master The addition of the EX10 MML11 MODBUS Module allows the T2E T2N or EX100 PLC to communicate via standard MODBUS RTU protocol This allows quick and easy access to the PLC registers by a standard MODBUS Master Using the ML11 Modbus module any Modbus Master can read the status of registers in the PLC and write to registers in the PLC This allows the Modbus Master to know the status of inputs to the PLC both digital and analog and to control the outputs of the PLC also both digital and analog The ML11 Modbus module cannot be a Modbus master only a modbus slave It has one RS485 port for connection to the Modbus master The preferred location of the EX10 MML11 is next to the CPU However the module may be located in any slot to the right of the CPU The CPU module can be any of the following EX10 MPU11 EX100 CPU now obsolete EX10 MPU12A EX100 CPU now obsolete TPU215 S T2 CPU now obsolete TPU224 S T2 CPU now obsolete TPU234E S T2E CPU replaces all obsolete CPUs TPU215N S T2N CPU basic TPU235N S T2N CPU with Ethernet TPU245N S T2N CPU with Ethernet and Tosline S20 The ML11 Modbus module is also used to connect a T2 or EX100 PLC into the Toshiba ECBUS The ECBUS allows the PLCs to share data wit
4. 000 to 0063 XW XWO00 to XW63 Register Holding Read Write 4 0000 to 0063 YW YWOO to YW63 Registers 0768 to 0831 RW RW00 to RW63 1280 to 1311 ZW ZWOO0 to ZW31 3328 to 3455 T 000 to T127 3840 to 3967 C C000 to C095 4352 to 5887 D 0000 to 01405 Page 7 NAR Modbus T2 Address mapping Example Input module Output Module XW000 001 In this example the 2 is being used As a Modbus Remote Terminal Unit slave A Modbus master can access The I O or data registers in the T2 See the following table for a Modbus to T2 address mapping example Modbus Module Gear EE 555 0900000 0000000 A Modbus Address T2 Address T2 Data Type 30000 XW000 Input Register 40001 YW001 Output Register 44352 D0000 Data Register Note When dealing with I O registers make sure that the Modbus master is attempting to access only the I O points that physically exist in the T2 system For example Holding Register 0 40000 does not exist in the above example because there is 000 in the T2 system In the above system only have Holding Register 1 40001 exists 5 3 Restricted Registers Registers D1406 to D1535 are reserved for raw data transmission with the EC300 loop controllers on the ECBUS network These registers are not available when the EX10 MML11 is used as
5. 89 7199 Fax 55 11 7689 7189 antoneli tbb toshiba com br Page 2 TOSHIBA INTERNATIONAL CORPORATION PTY LTD Unit 1 9 Orion Road Lane Cove N S W 2066 AUSTRALIA Tel 02 428 2077 Telex AA25192 E_mail preston toshiba co au TOSHIBA CORPORATION Industrial Equipment Department 1 1 Shibaura 1 chome Minato ku Tokyo 105 JAPAN Tel 03 3457 4900 Cable Toshiba Tokyo E mail osamu seki toshiba co jp Toshiba Asia Pacific PTE LTD 200 Cantonment Rd 12 01 Southpoint 089763 Singpore Ph 65 324 1048 Fax 65 324 5286 NAR
6. 99 Page ii PRELIMINARY Safety Precautions This application guide is prepared for users of Toshiba programmable controller PROSEC T2 Series and EX100 Series hereafter called T2 Read this guide and your PLC s manual thoroughly to use the PLC system safely Hazard Classifications In this guide the following two hazard classifications are used to explain the safety precautions N WARNING _ Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices N CAUTION Even if a precaution is classified as CAUTION it may cause serious results depending on the situation Observe all the safety precautions described on this guide Safety Precautions N CAUTION e Read the Safety Precautions described in your PLC s User s Manual before using the PLC e Carefully design a fail safe system in order to avoid an unsafe situation caused by PLC failure When the PLC detects an error in its self diagnostics the PLC goes into the error mode In the error mode all the PLC outputs turn OFF and the analog outputs go to 0 zero Page iii PS About This Guide This guide describes how to setup and use the Toshiba EX10 MML11 Modbus module When used in a Modbus network the EX10 MML11 module allows any Modbus master t
7. Device Register 02 Read Input Status DR Read Device Register 03 Read Holding Register DR Read Device Register 04 Read Input Register DR Read Device register 05 Force Single Coil DW Write Device Register 06 Force Single Register DW Write Device Register 08 Loop Back Diagnostic test Not Supported by 10 11 15 Force Multiple Coils DW Write Device register 16 Preset Multiple Registers DW Write Device register For more information on the Modbus protocol please refer to the Modbus Protocol Reference Guide see Additional References For more information on the T2 register access protocol please refer to the Computer Link Function Operation Manual see Additional References Page 6 PRELIMINARY 5 2 Modbus Data Types and T2 Register Mapping This table shows how the different Modbus data types are mapped into T2 registers In other words a Modbus master would reference the following Modbus register ranges to access the corresponding T2 PLC registers For example Modbus Holding Register 4352 will map to T2 register 0000 and Input Register 0000 will map to 00 Data Type Attribute Modbus No Offset Reg Device Address T2 Coils Read Write 0 0000 to 0511 Y Y000 to Y31F 0512 to 4095 Y320 to Y63F 4096 to 5112 R R000 to R63F 7936 to 8447 Z Z000 to Z31F Input Read only 1 0000 to 0511 X X000 to X31F Status 0512 to 4095 X320 to X63F Input Read only 3 0
8. LY switches are not used on the EX10 MML11 and should be set to the Off position Page 11 PRELIMINARY Example Configuration Settings This section shows how to set the card up for network station address 2 9600 baud and no parity ASY and DLY Set these to the Off position Station Address eSet the Station number on the rotary switch to 2 e Set the HAD switch to OFF because our address is less than 16 Communication speed For 9600 baud the following settings are required BR2 is on e BR1 is on e BRO is off Page 12 PRELIMINARY Parity check For No Parity the following settings are required PEN is off EVN is off OFF ON ASY DLY HAD BR2 BR1 BRO PEN EVN Hoping Switch settings for 9600 baud no parity and address less than 16 Page 13 PRELIMINARY 6 2 Wiring Connection to the Modbus Module Sometimes it is necessary to convert from the standard RS485 to RS232 for connection to a Personal Computer The wiring between the Modbus module and the converter must be set as follows RS485 Converter Modbus Module TXA RXA RXA TXA TXB RXB RXB TXB SG SG Note Different RS485 converters have different connections For example when one commonly available converter is used TXA connects to RXB TXB connects to RXA etc Please refer to the converter manufacturer s instructions Page 14 PRELIMINARY 7 CPU Setup for the Modbus Module Two lines of ladder lo
9. TOSHIBA UG TS02 E022 PROGRAMMABLE CONTROLLERS PROSEC T2 Series USERS MANUAL Modbus Module TOSHIBA CORPORATION Important Information Misuse of this equipment can result in property damage or human injury Because controlled system applications vary widely you should satisfy yourself as to the acceptability of this equipment for your intended purpose In no event will Toshiba Corporation be responsible or liable for either indirect or consequential damage or injury that may result from the use of this equipment No patent liability is assumed by Toshiba Corporation with respect to use of information illustrations circuits equipment or examples of application in this publication Toshiba Corporation reserves the right to make changes and improvements to this publication and or related products at any time without notice No obligation shall be incurred other than as noted in this publication This publication is copyrighted and contains proprietary material No part of this book may be reproduced stored in a retrieval system or transmitted in any form or by any means electrical mechanical photocopying recording or otherwise without obtaining prior written permission from Toshiba Corporation TOSHIBA Corporation 1998 All rights reserved PROSEC and TOSLINE are registered trademarks of TOSHIBA Corporation Publication number UG TSxx Exxx 1st edition August 1992 2nd edition March 19
10. gic are necessary to configure a T2 CPU for use with the Modbus module 1 Communications Priority To insure uninterrupted communications between the CPU and the Modbus module the communications priority bit 50158 must be set ON 2 Initialization To initialize the Modbus module write the initialization parameter into data register D1470 Register D1470 must be set to H5555 21845 Decimal before the Modbus module will start communicating SO04F 50158 1 4 2 21845 MOU D19470 When using the Modbus module the above logic should be placed in Block 1 Rung 1 and Rung 2 of the PLC program Page 15 PRELIMINARY 8 Trouble Shooting The communication status LEDs can be used to verify correct operation of the Modbus module During normal operation the LED indicators flash as follows e RXD LED Flashes when the Modbus master sends a message to the EX10 MML11 On a multi slave network this can also flash when when the master polls other slaves or when other slaves respond to the master In general it indicates activity on the network e TXD LED Flashes when that specific EX10 MML11 responds to the master This LED is only relevant to the module on which it is being viewed regardless of how many slaves are on the network It indicates that the module has received a message that is uniquely addressed to it and the EX10 MML11 is responding This LED is usually on longer than the RXD LED because the responses have more data than t
11. h Toshiba s EC300 series loop controllers The ECBUS is a LAN local area network which allows multiple EC300s and T2 EX100 PLCs to share data For more information on the ECBUS please refer to ECBUS Transmission Interface Manual see Additional References Page 1 PRELIMINARY 2 System Configuration From 1 to 32 T2E or T2N PLCs can be connected to a Modbus master using the Modbus module 1 to 1 Configuration Modbus Master 1 Higher Level PLC 2 Distributed Control System 3 Computer with SCADA or RS485 HMI Program Lr nx ERR om 0222252 0222222 ttt J JoModules Modbus Module 0000090 H 090900000 T2 Minimum T2E CPU Configuration Power Supply Page 2 PRELIMINARY 1 to N Configuration Modbus Master 1 Higher Level PLC 2 Distributed Control System 3 Computer with SCADA or HMI Program T2 Maximum Configuration 1 Main Unit 3 Exp Units Up to 32 Stations p For high speed data transfer one of Toshiba s Tosline Data Highway
12. he requests If the LED indicators are not flashing check the following Wiring connections Resistance at terminals Baud rate setting Station Number HAD Switch Parity selection Modbus master is using standard Modbus RTU format NOOR WDD If the LED indicators are on solid The polarity has been reversed on the network wiring For example the A terminals are wired to the B lines the terminals are wired to the lines etc Correct the connections to the EX10 MML11 Page 16 PRELIMINARY 9 Additional References Toshiba Corporation nstruction Manual EC300 Series Controller ECBUS Transmission Interface Module ML11 6 8 0613 4 ed Feb 1995 Tokyo Japan Toshiba Corporation Computer Link Function Operation Manual UM TS03 E008 3 ed Aug 1977 Tokyo Japan Gould Modicon Modbus Protocol Reference Guide PI MBUS 300 Rev B Jan 1985 Andover MA Page 17 PRELIMINARY TOSHIBA TOSHIBA INTERNATIONAL EUROPE LTD 1 Roundwood Avenue Stockley Park Uxbridge Middlesex UB11 1AR UNITED KINGDOM Tel 081 848 4466 Fax 081 848 4969 E mail nigels toshibai co uk TOSHIBA INTERNATIONAL CORPORATION Industrial Equipment Division 13131 West Little York Road Houston TX 77041 0 5 Tel 713 466 0277 Fax 713 466 8773 E mail plc tic toshiba com TOSHIBA do BRASIL S A Estrade dos Alvarengas 5500 Sao Bernardo do Campo Sao Paulo 0985 5500 Brazil Tel 55 11 76
13. o write to read from the registers in an EX100 or T2 PLC using standard Modbus RTU protocol Page iv PRELIMINARY Contents Important Informatio Nanin nna ii DIONE TO CANNON oap li cuta ect iii ADOBE TRIS GUIAS eod ond ui iv Contents NEM NR E D I tl lt 1 2 ONO AMON 2 3 External Features and Switch Settings 5 cout oi RU EAR EUER S ADR x E REC 4 A o gt O PECICA OMS 5 5 Modbus Module Operation ss digesta stews Ero Ee eee 6 5 1 Modbus CommandS mM RP m 6 5 2 Modbus Data Types and T2 Register 7 5 3 EMI 8 6 Modbus Module Setup 9 6 1 Modbus Module DIP Switch Settings 9 6 2 Wiring Connection to the Modbus 40 6 14 7 CPU Setup for the 15 8 Trouble SNOOUNG ois bM td qd eid a e tn edd dele uid lu edu uid e
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