Omron SRT2, CQM1-SRM21-V1, SRT1, CS1W-SRM21, COMPOBUS-S OPERATION MANUAL

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CompoBus/S

Cat. No. W266-E1-09

C200HW-SRM21-V1 CS1W-SRM21 CJ1W-SRM21 CQM1-SRM21-V1 SRT1 Series SRT2 Series

OPERATION MANUAL

C200HW-SRM21-V1 CS1W-SRM21 CJ1W-SRM21 CQM1-SRM21-V1 SRT1 Series SRT2 Series

CompoBus/S

Operation Manual

Revised August 2007

Notice:

r f

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

!DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or

serious injury. Additionally, there may be severe property damage.

!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or

serious injury. Additionally, there may be severe property damage.

!Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury, or property damage.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PLC” means Programmable Controller and is not used as an abbreviation for anything else.

Visual Aids

The following headings appear in the left column of the manual to help you locate different types of information.

 OMRON, 1996

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

Note Indicates information of particular interest for efficient and convenient opera-

tion of the product.

1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

TABLE OF CONTENTS

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

SECTION 1

System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 System Overview and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 CompoBus/S System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-3 Compatible Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-4 Startup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

SECTION 2 CompoBus/S System Specifications and Configuration 23

2-1 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2-3 Supplying Power to the Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2-4 System Configuration Using Water-resistant Terminals . . . . . . . . . . . . . . . . . . . . . 41

2-5 I/O Response Time Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

SECTION 3

CompoBus/S System Wiring . . . . . . . . . . . . . . . . . . . . . . 53

3-1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3-2 Connector Installation (Special Flat Cable Only). . . . . . . . . . . . . . . . . . . . . . . . . . 55

3-3 VCTF Cable Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-4 Master/Slave Connecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-5 Operations Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

SECTION 4

Master Unit Specifications and Operations . . . . . . . . . . 73

4-1 C200HW-SRM21-V1 Master Unit for CS-series,

C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs . . . . . . . . . . . . . . . . . . . . . 74

4-2 CS1W-SRM21 Master Unit for CS-series PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . 88

4-3 CJ1W-SRM21 Master Unit for CJ-series PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

4-4 CQM1-SRM21-V1 Master Unit for CQM1 PLCs . . . . . . . . . . . . . . . . . . . . . . . . . 126

4-5 SRM1-C0@-V2 Master Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

4-6 CPM2C-S Series CPM2C-S@@@C (-DRT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

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TABLE OF CONTENTS

SECTION 5

Slave Specifications and Operations . . . . . . . . . . . . . . . . 145

5-1 Remote Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

5-2 Connector Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

5-3 Remote I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

5-4 Water-resistant Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

5-5 Sensor Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

5-6 Fiber Amplifier Communications Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

5-7 Analog Input Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

5-8 Analog Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

5-9 I/O Link Units for CPM1A and CPM2A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

5-10 I/O Link Units for CPM2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

5-11 Sensor Amplifier Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

5-12 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350

SECTION 6

Starting Communications. . . . . . . . . . . . . . . . . . . . . . . . . 353

6-1 Turning the Power ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

6-2 Checking Operations for CS-series, C200HX/C200HG/C200HE-(Z)E,

and C200HS Master Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

6-3 Checking Operations of CS-series and CJ-series Master Units. . . . . . . . . . . . . . . 365

6-4 Checking Operations of CQM1 Master Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

6-5 Checking Slave Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

6-6 Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384

6-7 Precautions for Replacement of Units or Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Appendix

Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401

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About this Manual:

This manual describes the installation and operation of the CompoBus/S system and includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before attempting to install and operate the CompoBus/S Master and Slave Units. Be sure to read the pre-

cautions provided in the following section.

Section 1 provides an overview of the CompoBus/S System and functions, and describes the various Units that are used to configure a CompoBus/S System.

Section 2 provides details on the CompoBus/S System specifications and I/O response times, and explains how to configure a CompoBus/S System.

Section 3 explains how to install Units in control panels, wire the signal and power lines, and make other connections needed to assemble a CompoBus/S System. We recommend reading through the information on wiring each Master and Slave that are provided in Section 4 and Section 5.

Section 4 explains the functions of each Master Unit, including information on specifications, switch settings and allocation of Slave I/O.

Section 5 explains the functions of each Slave, including information on specifications, switch settings, and I/O.

Section 6 provides information on error processing, periodic maintenance operations, and troubleshooting procedures needed to keep the CompoBus/S System operating properly. We recommend reading through the error processing procedures before operation so that operating errors can be identified and corrected more quickly.

The Appendix provides tables of standard models including Masters, Slaves, and connecting devices.

In this manual, only the specifications of the CompoBus/S system and devices are described. For details on Units, refer to their respective manuals. (Suffixes have been omitted from the catalog numbers.)

Product Name Series Manual Name Cat. No.

CS-series Programmable Controllers CS Series SYSMAC CS Series Operation

CJ-series Programmable Controllers CJ Series SYSMAC CJ Series Operation

CS/CJ-series Programmable Controllers

C200HX/C200HG/C200HE-(Z)E Programmable Controllers

C200HS Programmable Controllers C200HS SYSMAC C200HS Operation

C200HS Programmable Controllers C200HS SYSMAC C200HS Installation

CQM1H Programmable Controller CQM1H SYSMAC CQM1H Operation

CQM1H Programmable Controller CQM1H SYSMAC CQM1H Programming

Manual

CS/CJ Series SYSMAC CS/CJ Series Pro-

gramming Manual

C200HX/C200HG/ C200HE-(Z)E

SYSMAC C200HX/C200HG/ C200HE-(Z)E Programmable Controllers Installation Guide

SYSMAC C200HX/C200HG/ C200HE-(Z)E Programmable Controllers Operation Manual

Manual

Guide

Manual

W339

W393

W394

W302

W322

W235

W236

W363

W364

CQM1 Programmable Controller CQM1 SYSMAC CQM1 Operation Man-

ual

W226

Product Name Series Manual Name Cat. No.

CQM1/CPM1/CPM1A/SRM1 Programmable Controller

CompoBus/S SRM1 Master Control Unit

CPM2C-S Programmable Controller CPM2C-S SYSMAC CPM2C-S Programma-

CPM1A/CPM2A I/O Link Unit CPM1A-SRT21 SYSMAC CPM2A I/O Link Units

CPM2C I/O Link Unit CPM2C-SRT21 SYSMAC CPM2C I/O Link Units

CQM1/CPM1/ CPM1A/SRM1

SRM1(-V2) SYSMAC CompoBus/S SRM1

SYSMAC CQM1/CPM1/CPM1A/ SRM1 Programming Manual

Master Control Units Operation Manual

ble Controllers Operation Manual

Operation Manual

W228

W318

W377

W352

W356

!WARNING Failure to read and understand the information provided in this manual may result in per-

sonal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

Read and Understand this Manual

Please read and understand this manual before using the product. Please consult your OMRON representative if you have any questions or comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products.

At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this manual.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

xii

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

ERRORS AND OMISSIONS

The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

xiii

PRECAUTIONS

This section provides general precautions for using the CompoBus/S Units, Programmable Controllers, and related devices.

The information contained in this section is important for the safe and reliable application of the CompoBus/S and PLC. You must read this section and understand the information contained before attempting to set up or operate a CompoBus/S and PLC system.

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

6-3 Conformance to EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Intended Audience 1

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

• Personnel in charge of installing FA systems.

• Personnel in charge of designing FA systems.

• Personnel in charge of managing FA systems and facilities.

2 General Precautions

The user must operate the product according to the performance specifications described in the operation manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for installing and operating OMRON CompoBus/S Units. Be sure to read this manual before operation and keep this manual close at hand for reference during operation.

!WARNING It is extremely important that a PLC and all PLC Units be used for the speci-

fied purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PLC System to the above-mentioned applications.

3 Safety Precautions

!WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing

so may result in electric shock.

!WARNING Do not touch any of the terminals or terminal blocks while the power is being

supplied. Doing so may result in electric shock.

!WARNING Provide safety measures in external circuits, i.e., not in the Programmable

Controller (CPU Unit including associated Units; referred to as “PLC”), in order to ensure safety in the system if an abnormality occurs due to malfunction of the PLC or another external factor affecting the PLC operation. Not doing so may result in serious accidents.

• Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must be provided in external control circuits.

• The PLC will turn OFF all outputs when its self-diagnosis function detects any error or when a severe failure alarm (FALS) instruction is executed. As a countermeasure for such errors, external safety measures must be provided to ensure safety in the system.

xvi

Operating Environment Precautions 4

• The PLC outputs may remain ON or OFF due to deposition or burning of the output relays or destruction of the output transistors. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

• When the 24-VDC output (service power supply to the PLC) is overloaded or short-circuited, the voltage may drop and result in the outputs being turned OFF. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do

so may result in malfunction, fire, or electric shock.

!Caution Execute online edit only after confirming that no adverse effects will be

caused by extending the cycle time. Otherwise, the input signals may not be readable.

!Caution Confirm safety at the destination node before transferring a program to

another node or editing the I/O area. Doing either of these without confirming safety may result in injury.

!Caution Tighten the screws on the terminal block of the AC Power Supply Unit to the

torque specified in the operation manual. The loose screws may result in burning or malfunction.

4 Operating Environment Precautions

!Caution Do not operate the control system in the following places:

• Locations subject to direct sunlight

• Locations subject to temperatures or humidity outside the range specified in the specifications

• Locations subject to condensation as the result of severe changes in temperature

• Locations subject to corrosive or flammable gases

• Locations subject to dust (especially iron dust) or salts

• Locations subject to exposure to water, oil, or chemicals

• Locations subject to shock or vibration

!Caution Take appropriate and sufficient countermeasures when installing systems in

the following locations:

• Locations subject to static electricity or other forms of noise

• Locations subject to strong electromagnetic fields

• Locations subject to possible exposure to radioactivity

• Locations close to power supplies

xvii

Application Precautions 5

!Caution The operating environment of the PLC System can have a large effect on the

longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PLC System. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.

5 Application Precautions

Observe the following precautions when using the CompoBus/S Units or the PLC.

!WARNING Failure to abide by the following precautions could lead to serious or possibly

fatal injury. Always heed these precautions.

• Always connect to 100 to a ground of 100

• Always turn OFF the power supplies to the PLC, slaves, and communications before attempting any of the following. Not turning OFF the power supplies may result in malfunction or electric shock.

• Mounting or dismounting Power Supply Units, I/O Units, CPU Units, memory casettes, Master Units, or any other Units

• Mounting or dismounting circuits for Remote I/O Terminals with 3-tier terminal blocks

• Assembling the Units or Racks

• Setting DIP switches or rotary switches

• Connecting or wiring the cables

• Connecting or disconnecting the connectors

!Caution Failure to abide by the following precautions could lead to faulty operation or

the PLC or the system or could damage the PLC or PLC Units. Always heed these precautions.

• Failsafe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.

• Provide external interlock circuits, limit circuits, and other safety circuits in addition to any provided within the PLC to ensure safety.

• Configure the control circuits to turn ON the power supply to I/O slaves before turning ON the power supply to the PLC (Master Unit). If the I/O slave power supply is turned ON after the PLC, correct operation may temporarily not be possible.

• Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.

• Do not drop the Unit or subject it to excessive vibration or shock.

• Be sure that all the Backplane mounting screws, slave mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in the relevant manuals. Incorrect tightening torque may result in malfunction.

• Wire correctly according to specified procedures.

Ω or less when installing the Units. Not connecting

Ω or less may result in electric shock.

xviii

Application Precautions 5

• Pay careful attention to the polarity (+/−) when connecting the terminal

blocks or connectors. Wrong connections may cause malfunction of the system.

• Wire all terminals, communications paths, power supplies lines, and I/O lines with the specified polarity and voltages. Improper wiring may result in faulty operation.

• Install external breakers and take other safety measures against short-circuiting in external wiring. Insufficient safety measures against short-circuiting may result in burning.

• Do not mount the Unit near equipment that generates strong high-frequency noise.

• Leave the label attached to the Unit when wiring to prevent wire clippings and other foreign matter from entering the Unit. Removing the label may result in malfunction.

• Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction.

• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Connection of bare stranded wires may result in burning.

• Wire correctly and double-check all the wiring or the setting switches before turning ON the power supply. Incorrect wiring may result in burning.

• Be sure that the terminal blocks, connectors, expansion cables, and other items with locking devices are properly locked into place. Improper locking may result in malfunction.

• Disconnect the LG and GR terminals on the Power Supply Unit before performing insulation resistance or dielectric strength tests.

• Always use the power supply voltage specified in the operation manual. An incorrect voltage may result in malfunction or burning.

• Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied. Be particularly careful in places where the power supply is unstable. An incorrect power supply may result in malfunction.

• Do not apply voltages to the Input Units in excess of the rated input voltage. Excess voltages may result in burning.

• Do not apply voltages exceeding the maximum switching capacity to Output Units. The Output Units may be destroyed.

• Check the user program for proper execution before actually running it on the Unit. Not checking the program may result in an unexpected operation.

• Always turn OFF the power supplies to the PLC, slaves, and communications before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock.

• Mounting or dismounting Power Supply Units, I/O Units, CPU Units, memory casettes Master Unit, or any other Units

• Mounting or dismounting circuits for Remote I/O Terminals with 3-tier terminal blocks.

• Assembling the Units

• Setting DIP switches or rotary switches

• Connecting or wiring the cables

xix

Application Precautions 5

• Connecting or disconnecting the connectors

• Before touching the Unit, be sure to first touch a grounded metallic object in order to discharge any static built-up. Not doing so may result in malfunction or damage.

• Confirm that no adverse effect will occur in the system before attempting any of the following. Not doing so may result in an unexpected operation.

• Changing the operating mode of the PLC. (including the Startup Mode setting)

• Force-setting/force-resetting any bit in memory.

• Changing the present value of any word or any set value in memory.

• When replacing parts, be sure to confirm that the rating of a new part is correct. Not doing so may result in malfunction or burning.

• Resume operation only after transferring to the new CPU Unit and/or Special I/O Units the contents of the DM and HR Areas required for resuming operation. Not doing so may result in an unexpected operation.

• When transporting the Units, use special packing boxes and protect them from excessive vibration or shock during transportation.

• Connect all communications cables within the limits given in the specifications.

• Observe the following precautions when wiring communications cables.

• Separate the communications cables from power lines or high-tension lines.

• Do not bend the communications cables.

• Do not pull on the communications cables with an excessive force.

• Do not place heavy objects on the communications cables.

• Be sure to put the communications cables inside conduits.

• Water-resistant Terminals used as Slaves are of IP67 construction. Do not attempt to use the Watertight Terminals for applications where the Watertight Terminals are always underwater.

• Install the Unit properly as specified in the operation manual. Improper installation of the Unit may result in malfunction.

Conformance to EC Directives 6

6 Conformance to EC Directives

6-1 Applicable Directives

•EMC Directives

6-2 Concepts

EMC Directives

OMRON devices that comply with EC Directives also conform to the related EMC standards so that they can be more easily built into other devices or the overall machine. The actual products have been checked for conformity to EMC standards (see the following note). Whether the products conform to the standards in the system used by the customer, however, must be checked by the customer.

EMC-related performance of the OMRON devices that comply with EC Directives will vary depending on the configuration, wiring, and other conditions of the equipment or control panel on which the OMRON devices are installed. The customer must, therefore, perform the final check to confirm that devices and the overall machine conform to EMC standards.

Note Applicable EMC (Electromagnetic Compatibility) standards are listed in the

following table.

Unit EMS (Electromagnetic

C200HW-SRM21-V1 EN61131-2 EN61000-6-4 (See note 2.) CS1W-SRM21 EN61131-2 CJ1W-SRM21 EN61000-6-2 (See note 1.) CQM1-SRM21-V1 EN61131-2 SRM1-C0@-V2 EN61000-6-2 (See note 1.) CPM2C-S@@@C(-DRT) EN61131-2 SRT1 and SRT2 Series EN61000-6-2 (See note 1.)

Note 1. These products have configurations with less than 30 m of I/O wiring, and

less than 10 m of power supply wiring.

2. Radiated emission for EN61000-6-4: 10-m regulations

6-3 Conformance to EC Directives

Observe the follow precautions when installing the CompoBus/S Units that conform to the EC Directives.

1,2,3... 1. Since the CompoBus/S Units are classified as built-in types, be sure to in-

stall the Units inside a control panel.

2. Provide reinforced insulation or double insulation for the DC Power Supplies that are used as power sources for the alarm output, communications circuits, and I/O circuits.

Susceptibility)

EMI (Electromagnetic

Interference)

3. The CompoBus/S Units that conform to the EC Directives also conforms to the Common Emission Standard (EN61000-6-4). When incorporated into a device, however, the requirements may vary depending on the configuration of the control panel to be used, relationship with other devices to be connected, wiring, etc. Users are therefore requested to confirm Unit conformance to the EC Directives by themselves.

xxi

SECTION 1

System Design

This section provides an overview of the CompoBus/S System and functions, and describes the various Masters, Slaves, and connection devices that are used to configure a CompoBus/S System.

1-1 System Overview and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 Network Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-1-3 Communications Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2 CompoBus/S System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-2-1 Basic System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-2-2 CompoBus/S System Components. . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3 Compatible Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-3-1 Compatible Masters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-3-2 Slave Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1-3-3 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1-3-4 Connectors/Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-4 Startup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

System Overview and Features Section 1-1

1-1 System Overview and Features

1-1-1 System Overview

The CompoBus/S System is a remote I/O communications system with reduced wiring that retains the functionality and ease of use of the original remote I/O system (wired type), while providing higher-speed, longer-distance, and highly reliable communications.

The CompoBus/S System allows connection of up to 32 I/O devices (Slaves) to a Master Unit using only two signal wires, even on long production lines that require multiple I/O control.

Connect up to 32 Slaves (256 Points) for Each Master Unit

CompoBus/S Master Unit

SYSMAC CS Series, C200HX/HG/HE-(Z)E, C200HS, CJ Series, CQM1/CQM1H (SRM1, CPM2C-S)

Slaves

Each CompoBus/S Master Unit can be connected to up to 32 Slaves of various types, including I/O Terminals and Sensor Terminals, and allows I/O communications for up to 256 points (128 inputs, 128 outputs).

Main line length: 500 m max.

Terminator

Up to 32 Slaves of various types

Flexible Wiring Configuration

CompoBus/S Master Unit

SYSMAC CS Series, C200HX/HG/ HE-(Z)E, C200HS, CJ Series, CQM1/ CQM1H (SRM1, CPM2C-S)

Total length: 200 m max.

Terminator

I/O Data Exchange without Special Programming

Up to 32 Slaves of various types

I/O data can be exchanged between the Master and Slaves without requiring any special ladder programming for communications. I/O information for each Slave is exchanged between Slaves and the corresponding I/O Area in the Master by simply setting the node number of each Slave.

System Overview and Features Section 1-1

Input Slave

CPU Unit's I/O Area

Node number

00 01 02 03 04 05

to 14 15 00 01 02 03 04 05 to 14 15

Word Bit

00 to 07

CIO 2000

08 to 15 00 to 07

CIO 2001

CIO 2002

CIO 2007

CIO 2008

CIO 2009

CIO 2010

CIO 2015

08 to 15 00 to 07 08 to 15

00 to 07 08 to 15 00 to 07 08 to 15 00 to 07 08 to 15 00 to 07 08 to 15

00 to 07 08 to 15

OUT data

IN data

Example settings using CJ1W-SRM21 Master Unit with unit #00, connected to 32 Slaves.

Output

OUT node 0 8-point Output Slave

OUT node 2 16-point Output Slave

OUT node 4 8-point Output Slave

Input

IN node 0 8-point Input Slave

IN node 2 32-point Input Slave

IN node 14 16-point Input Slave

IN/OUT node1 8-point Input/ 8-point Output Slave

1-1-2 Network Features

The CompoBus/S has the following features.

Communications Modes Select either a High-speed Communications Mode or Long-distance Commu-

nications Mode for the CompoBus/S according to the system configuration. The differences between the High-speed Communications Mode and the Long-distance Communications Mode are described in 1-1-3 Communica-

tions Modes.

Flexible Wiring Up to 200 m

Long-distance Communications Up to 500 m

High-speed Communications

Water-resistance Slaves Water-resistant Terminals (IP67) can be used as Slaves to exchange I/O in

In Long-distance Communications Mode, flexible wiring is possible up to a total cable length of 200 m with no restrictions on branching or node connections, provided that 4-conductor VCTF cable or Special Flat Cable is used.

In Long-distance Communications Mode, communications over the main line of up to 500 m are possible to control I/O devices in a wide area, provided that 2-conductor VCTF cable is used. In this case, however, each branch line can be connected to a single Slave only, because the branch line cannot be further branched. Furthermore, the Master must be connected to either end of the main line.

In High-speed Communications Mode, up to 16 Slaves with 128 I/O points can be connected with a high-speed communications cycle time of only

0.5 ms. This cycle is fast enough for time-critical factory automation applications.

places exposed to water. Water-resistant Terminals are, however, available only when the communications cable is 4-conductor VCTF cable.

Reduced Wiring A Slave can be connected to a Master or another Slave with just one connect-

ing cable. If the 4-wire Special Flat Cable or 4-conductor VCTF cable is used, the Slave’s communication power supply is also supplied through the cable, so floor wiring can be reduced dramatically. Also, special connectors simplify branching from a main cable.

System Overview and Features Section 1-1

Connecting to 4conductor VCTF Cable

Use Both T-branch and Multidrop Methods

Wide Variety of Masters Master Units are available as Special I/O Units for the CS-series,

Wide Variety of Slaves Units in a wide range are available as I/O Slaves for a variety of applications.

Easy Startup The CompoBus/S System can be started just by wiring the cables and making

Easy-to-obtain 4-conductor VCTF cable can be used instead of the Special Flat Cable. Furthermore improvement in the environmental resistance of the system is possible by using shielded connectors.

Both the T-branch and multidrop methods can be combined flexibly when wiring. In combination with the floor cables, this wiring feature allows a very flexible system configuration. There are three types of cables (2-conductor VCTF cable, 4-conductor VCTF cable, and Special Flat Cable), and when the Special Flat Cable is used, T-branch Connectors can be installed by simply snapping the connector on.

C200HX/C200HG/C200HE-(Z)E, C200HS, CS-series, CJ-series, and CQM1 PLCs and also available integrated with a CPU for the SRM1 and CPM2C-S. The variety of Masters provides flexibility in configuring a system to match your application needs.

Such Units include Remote Terminals and Sensor Terminals, which vary with the number of I/O points or I/O type, Connector Terminals, which allow easy wiring, and Water-resistant Terminals, which have a better protective construction. There are many Slaves available with advanced functions, including Analog I/O Terminals for analog-to-digital or digital-to-analog conversion, and CPM1A/CPM2A/CPM2C I/O Link Units for sharing data with the host PLC.

some simple settings. Replacement of earlier Remote I/O Systems is also easy.

Slave Node Number Provided on Indicators and in PLC Memory

Slave Monitoring for Improved Reliability

Troubleshooting is easy because the Slave’s node number is shown on the Master’s indicators if an error occurs with a Slave. When a CS-series, C200HX/HG/HE-(Z)E, or C200HS Master Unit is used, error information is also stored in PLC memory.

When an error occurs with a Slave using a CS-series or CJ-series Master Unit, the Slave's node number is stored in the DM Area using the Slave registration function.

Reliability of the CS-series and CJ-series Master Units has been further improved by the addition of the following functions.

Slave Registration Function

Registering Slaves in the Master allows the user to check whether connected Slaves are joined to the network, and to detect whether Slaves are illegally joined due to incorrect connection, or missing from the network due to a delay in startup or malfunction of registered Slaves.

Communications Stop Mode

System malfunctions can be avoided by setting remote I/O communications to stop when a communications error occurs.

System Overview and Features Section 1-1

1-1-3 Communications Modes

Both High-speed Communications Mode and the Long-distance Communications Mode are supported by the CompoBus/S.

Item High-speed Communica-

Communications baud rate

Communications cycle time

750 kbps 93.75 kbps

0.5 ms or 0.8 ms (depending on maximum number of I/O points)

tions Mode

The communications distance and the connection configuration vary with the communications mode and communications cable.

Cable High-speed Communications

2-conductor VCTF cable

4-conductor VCTF cable

Special Flat Cable

Length of main line: 100 m max. Length of branch line: 3 m max. Total length of branch lines: 50 m max.

Length of main line: 30 m max. Length of branch line: 3 m max. Total length of branch lines: 30 m max.

Mode

Long-distance Communi-

cations Mode

4.0 ms or 6.0 ms (depending on maximum number of I/O points)

Long-distance Communica-

tions Mode

Length of main line: 500 m max. Length of branch line: 6 m max. Total length of branch lines: 120 m max.

Flexible branching, provided that the total length of cable is a maximum of 200 m.

Note The I/O response time may be slower when using Long-distance Communica-

tions Mode compared with High-speed Communications Mode. Refer to

O Response Time Characteristics

2-5 I/

CompoBus/S System Configuration Section 1-2

1-2 CompoBus/S System Configuration

1-2-1 Basic System Configuration

Remote Input Terminals

Photoelectric Sensors, Proximity Sensors, or Limit Switches

Fiber Amplifier Communications Units

Master Unit

Photoelectric Sensors, Proximity Sensors, Limit Switches

Fiber Amplifier Units

C200HW-SRM21-V1 for CS1, C200HX/C200HG/C200HE (-ZE), and C200HS CS1W-SRM21 for CS Series, CJ1W-SRM21 for CJ Series, CQM1-SRM21-V1 for all CQM1 PLCs SRM1 Master Control Unit CPM2C-S Series

Remote Input Terminals (3-tier terminal block)

Remote Output Terminals

Solenoids or valves

Remote I/O Module

Remote Output Terminals (3-tier terminal block)

Solenoids or valves

Analog Input Terminal

Remote I/O Terminals (3-tier terminal block)

Connector I/O Terminals

Analog Output Terminal

CPM2A or CPM1A

Photoelectric Sensors or Proximity Sensors with connectors

Sensor Terminals

Terminal-block Terminator

I/O Link Unit for CPM1A/CPM2A

PCB

Optical Fiber Sensors

1 to 5 V, 4 to 20 mA

Master Characteristics

CS-series, C200HX/HG/HE-(Z)E, C200HS Master Units

• Multiple Masters (up to 16) can be connected to a single PLC.

• Up to 128 or 256 I/O points (DIP switch used to switch setting).

• Communications status stored in CPU Unit's I/O Area.

CS-series Master Units

• Multiple Masters (up to 96) can be connected to a single PLC.

• Up to 128 or 256 I/O points (DIP switch used to switch setting).

• Communications status stored in CPU Unit's I/O Area.

• Uses the Slave registration function to monitor which Slaves are joined to the network.

• Communications can be stopped when a communications error occurs.

CJ-series Master Units

• Multiple Masters (up to 40) can be connected to a single PLC.

• Up to 128 or 256 I/O points (DIP switch used to switch setting).

• Communications status stored in CPU Unit's I/O Area.

Inverters or valves

CompoBus/S System Configuration Section 1-2

• Uses the Slave registration function to monitor which Slaves are joined to the network.

• Communications can be stopped when a communications error occurs.

CQM1 Master Units

• Only one Master can be connected to a single PLC.

• Up to 32, 64, or 128 I/O points (DIP switch used to switch setting).

• Alarm output terminal provided to detect errors.

SRM1 and CPM2C-S Master Units with Built-in CPU Units

• Compact CPU Unit with built-in CompoBus/S communications functions.

• Up to 256 I/O points for CompoBus/S functions.

• Communications status stored in CPU Unit's AR Area.

Slave Characteristics

Remote Terminals

• Input or Output Terminals for general-purpose use.

• 4-point, 8-point, and 16-point Transistor Remote Terminals.

• Remote Terminals with no-contact transistor I/O, connector transistor outputs, or relay contact outputs.

Remote Terminals (3-tier Terminal Blocks)

• Input or Output Terminals for general-purpose use.

• 16 points: 8 inputs and 8 outputs mixed.

• Wiring is simple because common terminals for I/O wiring are located at each point on the 3-tier terminal block.

Connector Terminals

• All I/O wiring can be done using connectors, reducing the amount of labor for wiring.

• Mounting brackets allow the direction of mounting to be changed.

Water-resistant Terminals

• Input or output terminals of IP67 construction.

• 4 or 8 inputs or outputs.

• Connecting to communications cable, I/O power supply, and I/O through shielded connectors.

Remote I/O Modules

• Modular type that allows PCB mounting.

• 16-input model and 16-output model.

• User’s devices can be customized as CompoBus/S Slaves.

Sensor Terminals

• Easily connects to Photoelectric Sensor or Proximity Sensor with XS8 Connectors.

• 8-input/8-output model and 4-input/4-output model.

• Remote teaching and external diagnosis are possible by using output signals of the Sensor Terminal.

Fiber Amplifier Communications Units

• Reduced wiring with ON/OFF output and power supply wiring not required.

• Connecting a Fiber Amplifier Unit allows connection of up to 14 Optical Fiber Sensors.

CompoBus/S System Configuration Section 1-2

• Mobile Console can be connected without the Head (Photoelectric Sensor setting, teaching, and adjustment can be executed on site.)

Analog Input Terminals

• Convert analog inputs to binary data.

• The number of analog input points can be switched between 4 points, 3 points, 2 points, and 1 point using a DIP switch.

• The following input ranges are supported: 0 to 5 V, 1 to 5 V, 0 to 10 V, –10 to 10 V, 0 to 20 mA, 4 to 20 mA

Analog Output Terminals

• Convert binary data to analog outputs.

• The number of analog output points can be switched between 2 points and 1 point using a DIP switch.

• Supports the following output ranges: 1 to 5 V, 0 to 10 V, –10 to 10 V, 0 to 20 mA, 4 to 20 mA

I/O Link Terminals for CPM1A/CPM2A

• Create I/O Links (8 inputs, 8 outputs) with CPM1A and CPM2A PLCs.

CPM2C I/O Link Unit

• Creating I/O Links (8 inputs, 8 outputs) with CPM2C-series PLCs.

1-2-2 CompoBus/S System Components

System with Distinct Main and Branch Lines

The diagram below shows a CompoBus/S System in which the main line must be distinguished from the branch lines under either of the following conditions.

• The system operates in High-speed Communications Mode.

• The system operates in Long-distance Communications Mode with 2-conductor VCTF cable. (The maximum length of the main line varies with the type of communications cable.)

Communications Cable

Te r mi n a to r

Master

Communications Power Supply

Slave Slave

Master The Master administers the CompoBus/S System and manages the external

I/O of the Slaves. There is only 1 Master in a CompoBus/S System and the Master must be connected at the end of the main line, as shown in the preceding diagram.

Slave Slave Slave

Main line

Branch line

Power supply cable

Slave

T: T-branch connection M: Multidrop connection

Slaves The external I/O connected to the Slaves is processed by communicating with

the Master through the CompoBus/S System.

Main/Branch Lines The main line is the main cable that connects the two most distant points of

the system. Cables branching from the main line are known as branch lines.

Cables CompoBus/S communications are transmitted through 2-conductor VCTF, 4-

conductor VCTF, or Special Flat Cable. When 4-conductor VCTF or Special

CompoBus/S System Configuration Section 1-2

Flat Cable is used, the communications power supply can be supplied through the cable. The system shown in the preceding diagram uses 4-conductor VCTF or Special Flat Cable. When 2-conductor VCTF cable is used, power must be supplied to the Slaves through a separate cable.

Connection Methods Two methods can be used to connect CompoBus/S Slaves: the T-branch

method and the multidrop method. With the T-branch method, the Slave is connected to a branch line which branches off from the main line. With the multidrop method, the Slave is connected directly to the main line.

These two connection methods can both be used in the same system, although it is not possible to make a secondary branch from a branch line. Use OMRON’s Branch Connector, a T-joint for a shielded connector, or a commercially available terminal block to create a branch from the main line.

Termina tor A terminator must be connected to the end of the main line opposite the Mas-

ter in order to stabilize communications. There are three kinds of terminating resistors available, a connector for use with Special Flat Cable, a terminal block, and a shielded connector.

System with No Distinction between Main and Branch Lines

The diagram below shows a CompoBus/S System in which it is not necessary to distinguish between the main line and branch lines. This applies to the following conditions.

• The system operates in Long-distance Communications Mode with 4-conductor VCTF cable.

• The system operates in Long-distance Communications Mode with Special Flat Cable. (The maximum length of cable is 200 m regardless of the type of communications cable.)

Slave

Communications Power Supply

Slave

Master

Slave

Communications cable Power supply cable

Slave

Terminator

Slave Slave Slave

T: T-branch connection

M: Multidrop connection

Master The Master administers the CompoBus/S System and manages the external

I/O of the Slaves. There is only one Master in a CompoBus/S System and the Master can be connected anywhere.

Slaves The external I/O connected to the Slaves is processed by communicating with

the Master through the CompoBus/S System.

Compatible Devices Section 1-3

Cables CompoBus/S communications are transmitted through Special Flat Cable or

4-conductor VCTF cable. The communications power supply can be supplied through either of the cables.

Connection Methods Two methods can be used to connect the CompoBus/S Master and Slaves:

the T-branch method and the multidrop method. With the T-branch method, the Slave is connected to a line that branches off from the communications cable wherever desired. With the multidrop method, the Master or Slave is connected directly to the communications cable. These two connection methods can both be used in the same system and it is possible to make a secondary branch from a branch line. Use OMRON’s Branch Connector for Special Flat Cable, a T-joint for a shielded connector, or a commercially available terminal block to create a branch from the communications cable.

Termina tor A terminator must be connected to the end of the communications cable far-

thest from the Master in order to stabilize communications. There are three kinds of terminating resistors available, a connector for use with Special Flat Cable, a terminal block, and a shielded connector. In a system in which distinguishing between the main and branch lines is not necessary, only a single terminator farthest from the Master is required regardless of the position the Master is connected to the communications cable.

1-3 Compatible Devices

1-3-1 Compatible Masters

Masters with Communications Functions

PLC C200HX-CPU3@-

Master Unit

Communications mode

Analog I/O Te r mi n al connection

Max. number of Masters

Master Unit mounting location

(Z)E/ CPU4@-(Z)E,

C200HG-CPU3@-

(Z)E/CPU4@-(Z)E, C200HE, C200HS

C200HW-SRM21-V1 CS1W-SRM21 CJ1W-SRM21 CQM1-SRM21-V1

High-speed Communications Mode or Long-distance Communications Mode (switched using the DIP switch on front panel)

Possible

10 Units (when using a single Special I/O Unit node number (i.e., 10 words))

5 Units (when using two Special I/O Unit node number (i.e., 20 words))

Can be mounted on the CPU Backplane or Expansion I/O Backplane. Can’t be mounted on a SYSMAC BUS Slave (RT) Rack.

There are three types of Master Units which can be used in CompoBus/S Systems. The model of the Master Unit which must be used depends on the PLC being used.

C200HX-CPU5@-

(Z)E/ CPU6@-(Z)E/

CPU8@-(Z)E,

C200HG-CPU5@-

(Z)E/ CPU6@-(Z)E,

CS Series

16 Units (when using a single Special I/O Unit node number (i.e., 10 words))

8 Units (when using two Special I/O Unit node number (i.e., 20 words))

CS Series CJ Series CQM1, CQM1H

96 Units (when using a single Special I/O Unit node number (i.e., 10 words))

95 Units (when using two Special I/O Unit node number (i.e., 20 words))

40 Units CQM1: 1 Unit

CQM1H: Up to the number corresponding to the maximum I/O points for the CPU Unit.

Can be connected in the CPU Rack or Expansion Rack.

No restrictions.

Compatible Devices Section 1-3

PLC C200HX-CPU3@-

Max. number of I/O points per Master

Number of points per node number

Number of usable node numbers per Master

Master Unit power supply

(Z)E/ CPU4@-(Z)E,

C200HG-CPU3@-

(Z)E/CPU4@-(Z)E,

C200HE, C200HS

256 points (128 inputs/128 outputs) or 128 points (64 inputs/64 outputs) The max. number of I/O points depends on the DIP switch settings.

The area allocated to Special I/O Units is used for I/O.

8-point mode 8-point mode 8-point mode or 4-

IN0 to IN7 and OUT0 to OUT7 or IN0 to IN15 and OUT0 to OUT15

Not required. (Power is supplied from the PLC.)

C200HX-CPU5@-

(Z)E/ CPU6@-(Z)E/

CPU8@-(Z)E,

C200HG-CPU5@-

(Z)E/ CPU6@-(Z)E,

CS Series

CS Series CJ Series CQM1, CQM1H

CQM1-CPU11-E/ 21-E: 32 points (16 inputs/ 16 outputs) or 64 points (32 inputs/ 32 outputs)

CQM1-CPU41-EV1/

42-EV1/ 43-EV1/44-EV1: 32 points (16 inputs/16 outputs) or 64 points (32 inputs/32 outputs) or 128 points (64 inputs/ 64 outputs)

The max. number of I/O points depends on the DIP switch settings. The IR area is used for I/O.

point mode

IN0 to IN7 and OUT0 to OUT7 or IN0 to IN15 and OUT0 to OUT15

Not required. (Power is supplied from the PLC.)

When 8 points are used per node:

IN0 to IN1/OUT0 to OUT1 or IN0 to IN3/OUT0 to OUT3 or IN0 to IN7/OUT0 to OUT7

When 4 points are used per node:

IN0 to IN3/OUT0 to OUT3 or IN0 to IN7/OUT0 to OUT7 or IN0 to IN15/OUT0 to OUT15

Not required. (Power is supplied from the PLC.)

Compatible Devices Section 1-3

PLC C200HX-CPU3@-

Te r mi n al for connecting communications power supply for Slaves

Status indicators

(Z)E/ CPU4@-(Z)E,

C200HG-CPU3@-

(Z)E/CPU4@-(Z)E, C200HE, C200HS

Not provided Provided Not provided

The PLC’s AR Area contains the active node flags and communications error flags for each Slave.

C200HX-CPU5@-

(Z)E/ CPU6@-(Z)E/

CPU8@-(Z)E,

C200HG-CPU5@-

(Z)E/ CPU6@-(Z)E,

CS Series

CS Series CJ Series CQM1, CQM1H

The PLC’s Auxiliary Area contains the active node flags and communications error flags for each Slave. The DM Area contains an area for Slave registration and setting communications stop mode.

There is an alarm output terminal in the terminal block.

Note 1. Previous Master Unit models (without -V1), which do not support the Long-

distance Communications Mode, cannot be used when an Analog I/O Terminal is connected as a Slave. If used, incorrect data may be transmitted.

2. Refer to

SECTION 4 Master Unit Specifications and Operations for more

details on the Master Units.

Master with Built-in CPU The following Master Control Unit models, which have a built-in CPU Unit, are

used for distributed I/O control in CompoBus/S Systems. Refer to the SRM1

Master Control Unit Operation Manual (W318-E1-@) and the CPM2C-S PLC Operation Manual (W377-E1-@) for details.

SRM1 Master Control Unit

Item Master Control Unit

SRM1-CPU01-V2 SRM1-CPU02-V2

Peripheral port Yes Yes RS-232C port --- Yes Program capacity 4K words Max. number of I/O points 256 (128 inputs/128 outputs) Communications mode High-speed Communications Mode or Long-distance

Number of points per node number

Number of usable node numbers per Master

Status indicators The PLC’s AR Area contains the active node flags and

Communications Mode (switched using PLC Setup) 8-point mode

IN0 to IN7 and OUT0 to OUT7 or IN0 to IN15 and OUT0 to OUT15

communications error flags for each Slave.

CPM2C-S PLC

The CPM2C-S PLC has built-in CompoBus/S Master and DeviceNet Slave functions. Models that support I/O links with host PLCs are available as well.

Item Master Control Unit

CPM2C-S@@@CCPM2C-S@@@C-DRT

Peripheral port The same connector is used. RS-232C port Program capacity 4K words Max. number of I/O points 256 (128 inputs/128 outputs) Communications mode High-speed Communications Mode or Long-distance

Communications Mode (switched using PLC Setup)

Compatible Devices Section 1-3

Item Master Control Unit

CPM2C-S@@@CCPM2C-S@@@C-DRT

Number of points per node number

Number of usable node numbers per Master

Status indicators The PLC’s AR Area contains the active node flags and

DeviceNet Slave function Not provided Provided

8-point mode

IN0 to IN7 and OUT0 to OUT7 or IN0 to IN15 and OUT0 to OUT15

communications error flags for each Slave.

Master Units and Corresponding Communications Modes

Master Units support only High-speed Communications Mode or both Highspeed Communications Mode and Long-distance Communications Mode. Slave Analog Terminals can be connected to the Units that support both Highspeed and Long-distance Communications Modes. These Units are an upgraded version and, by switching the communications mode, can be used instead of the Units that support only the High-speed Communications Mode.

Item Unit supporting

Communications modes

Analog I/O Terminal connections No Yes

High-speed Communications Mode

Long-distance Communications Mode

High-speed Communications only

Ye s Y e s

No Yes

Unit supporting High-speed and

Long-distance

Communications

The following models are available.

PLC Units supporting

CS-series, C200HX/C200HG/ C200HE-(Z)E, and C200HS Master Units

CS-series Master Units --- CS1W-SRM21 CJ-series Master Units --- CJ1W-SRM21 CQM1 Master Units CQM1-SRM21 CQM1-SRM21-V1 SRM1 SRM1-C0@

CPM2C-S --- CPM2C-S@@@ (-DRT)

High-speed Com-

munications

C200HW-SRM21 C200HW-SRM21-V1

SRM1-C0@-V1

Units supporting High-

speed and Long-distance

Communications

SRM1-C0@-V2

Note Master Units that do not support Long-distance Communications Mode can-

1-3-2 Slave Units

not be used when connecting an Analog Terminal as a Slave. If used, incorrect data may be transmitted.

The SRT1/SRT2 Series provides Slaves that support only High-speed Communications Mode or both High-speed Communications Mode and Long-distance Communications Mode. The SRT2-series Slaves that support Highspeed and Long-distance Communications Modes are an upgraded version

Compatible Devices Section 1-3

and, by switching the communications mode, can be used instead of the Slaves that support only the High-speed Communications Mode.

Item Slaves supporting

Slave Series SRT1 Series SRT2 Series Communica-

tions modes

High-speed Communications Mode

Long-distance Communications Mode

High-speed Com-

munications

Ye s Y e s

No Yes

Available models are shown in the following table.

Type Previous models New models I/O points Power supply

Slave SRT1 Series SRT2 Series

Remote Terminals with Transistors

SRT1-ID04 SRT2-ID04 4 inputs (NPN) Multiple supSRT1-ID04-1 SRT2-ID04-1 4 inputs (PNP) SRT1-ID08 SRT2-ID08 8 inputs (NPN) SRT1-ID08-1 SRT2-ID08-1 8 inputs (PNP) SRT1-ID16 SRT2-ID16 16 inputs (NPN) SRT1-ID16-1 SRT2-ID16-1 16 inputs (PNP) SRT1-ID16T SRT2-ID16T 16 inputs

(NPN, 3-tier terminal block)

SRT1-ID16T-1 SRT2-ID16T-1 16 inputs

(PNP, 3-tier terminal block) SRT1-OD04 SRT2-OD04 4 outputs (NPN) SRT1-OD04-1 SRT2-OD04-1 4 outputs (PNP) SRT1-OD08 SRT2-OD08 8 outputs (NPN) SRT1-OD08-1 SRT2-OD08-1 8 outputs (PNP) SRT1-OD16 SRT2-OD16 16 outputs (NPN) SRT1-OD16-1 SRT2-OD16-1 16 outputs (PNP) SRT1-OD16T SRT2-OD16T 16 outputs

(NPN, 3-tier terminal block) SRT1-OD16T-1 SRT2-OD16T-1 16 outputs

(PNP, 3-tier terminal block) SRT1-MD16T SRT2-MD16T 8 inputs, 8 outputs

(NPN, 3-tier terminal block) SRT1-MD16T-1 SRT2-MD16T-1 8 inputs, 8 outputs

(PNP, 3-tier terminal block)

Slaves supporting

High-speed and

Long-distance

Communications

plies

Compatible Devices Section 1-3

Type Previous models New models I/O points Power supply

Slave SRT1 Series SRT2 Series

Connector Terminals (8-point/16point Transistors)

Connector Terminals (32-point Transistors)

Remote Terminals with Relays

Remote Terminals with Power MOS FETs

Water-resistant Terminals (Transistors)

Sensor Terminals SRT1-ID08S SRT2-ID08S 8 inputs Network

Remote I/O Modules

None SRT2-VID08S 8 inputs

(NPN, sensor connectors)

SRT2-VID08S-1 8 inputs

(PNP, sensor connectors)

SRT2-VID16ML 16 inputs

(NPN, MIL connectors)

SRT2-VID16ML-1 16 inputs

(PNP, MIL connectors)

SRT2-VOD08S 8 outputs

(NPN, sensor connectors)

SRT2-VOD08S-1 8 outputs

(PNP, sensor connectors)

SRT2-VOD16ML 16 outputs

(NPN, MIL connectors)

SRT2-VOD16ML-1 16 outputs

(PNP, MIL connectors)

None SRT2-ID32ML 32 inputs

(NPN, MIL connectors)

SRT2-ID32ML-1 32 inputs

(PNP, MIL connectors)

SRT2-OD32ML 32 outputs

(NPN, MIL connectors)

SRT2-OD32ML-1 32 outputs

(PNP, MIL connectors)

SRT2-MD32ML 16 inputs, 16 outputs

(NPN, MIL connectors)

SRT2-MD32ML-1 16 inputs, 16 outputs

(PNP, MIL connectors) SRT1-ROC08 SRT2-ROC08 8 outputs Local SRT1-ROC16 SRT2-ROC16 16 outputs SRT1-ROF08 SRT2-ROF08 8 outputs SRT1-ROF16 SRT2-ROF16 16 outputs

None SRT2-ID04CL 4 inputs (NPN) Multiple sup-

SRT2-ID04CL-1 4 inputs (PNP) SRT2-ID08CL 8 inputs (NPN) SRT2-ID08CL-1 8 inputs (PNP) SRT2-OD04CL 4 outputs (NPN) SRT2-OD04CL-1 4 outputs (PNP) SRT2-OD08CL 8 outputs (NPN) SRT2-OD08CL-1 8 outputs (PNP)

SRT1-ND08S SRT2-ND08S 4 inputs, 4 outputs SRT1-OD08S SRT2-OD08S 8 outputs

(NPN, connector outputs) SRT1-ID16P SRT2-ID16P 16 inputs (NPN, PCB attachment) --SRT1-OD16P SRT2-OD16P 16 outputs (NPN, PCB attach-

ment)

Multiple supplies

plies

Local

Compatible Devices Section 1-3

Type Previous models New models I/O points Power supply

Slave SRT1 Series SRT2 Series

Fiber Amplifier Communications Unit

Analog Input Terminals

Analog Output Terminals

I/O Link Units None CPM1A-SRT21 8 inputs, 8 outputs

CPM2C I/O Link Units

Network Power Supply These Slaves use a single power supply and can be supplied with power from

None E3X-SRT21 8-point input or 16 point input (with

Fiber Amplifier Unit connected)

None SRT2-AD04 Switchable between 4-point, 3-

point, 2-point, and 1-point analog input

None SRT2-DA02 Switchable between 2-point and 1-

point analog output

(For CPM1A/CPM2A)

None CPM2C-SRT21 8 inputs, 8 outputs (For CPM2C) ---

Network

---

Note 1. The power supply requirements are described below. Refer to 2-3 Supply-

ing Power to the Slaves

for details on these power supplies.

2. Refer to SECTION 5 Slave Specifications and Operations for details on Slaves.

the Special Flat Cable for CompoBus/S.

Multiple Power Supplies These Slaves require two separate power supplies for communications and I/

O. The communications power can be supplied from the Special Flat Cable for CompoBus/S.

Local Power Supply These Slaves require a single external power supply. The power cannot be

supplied from the Special Flat Cable for CompoBus/S.

1-3-3 Cables

Cables The following table lists the cables that can be used in a CompoBus/S Sys-

tem.

Cable Specifications

2-conductor VCTF cable (sold commercially)

4-conductor VCTF cable (sold commercially)

Special Flat Cable (OMRON SCA1-4F10, 100 m)

Vinyl-clad VCTF JIS C 3306 Two 0.75 mm

Resistance: 25.1 Ω/km at 20°C Use only 2-conductor VCTF cable. Vinyl-clad VCTF JIS C 3306 Four 0.75 mm

supply wires) Resistance: 25.1 Ω/km at 20°C.

Four 0.75 mm (2 signal wires and 2 power supply wires)

Maximum ambient temperature: 60°C

conductors (2 signal wires)

conductors (2 signal wires and 2 power

conductors

Note 1. Do not use cables other than those specified above.

2. For information on communications cables specified by overseas manufacturers, refer to

Appendix Standard Models.

Compatible Devices Section 1-3

The communications distance depends on the cable used, as follows:

Cable Mode Main line

2-conductor VCTF cable

4-conductor VCTF cable

Special Flat Cable High-speed Commu-

High-speed Communications Mode

Long-distance Communications Mode

High-speed Communications Mode

Long-distance Communications Mode

nications Mode Long-distance Com-

munications Mode

length

100 m max. 3 m max. 50 m max.

500 m max. 6 m max. 120 m max.

30 m max. (See note.)

Flexibly branched, provided that the total length of cable is a maximum of 200 m.

30 m max. (See note.)

Flexibly branched, provided that the total length of cable is a maximum of 200 m.

Note When 4-conductor VCTF cable or Special Flat Cable is used to connect fewer

than 16 Slaves, the main line can be up to 100 m long and the total branch line length can be up to 50 m in High-speed Communications Mode. (These are the same conditions as when 2-conductor VCTF cable is used.)

Branch

line length

3 m max. (See note.)

Tot al

branch

line length

30 m max. (See note.)

1-3-4 Connectors/Terminal Blocks

The following table lists the connectors that can be used in a CompoBus/S System.

Connector Model Comments

Branch Connector SCN1-TH4 Use this connector to create a branch line

Extension Connector SCN1-TH4E Use this connector to extend the Special Flat

Connector Terminator SCN1-TH4T This connector has a built-in terminator.

Connectors with Cable with a socket and plug

Connector with Cable with a female socket

Connector with Cable with a male plug

XS2W-D42@-@81-@ Connectors with cable used to connect the

XS2F-D42@-@80-@ A connector with cable used to connect the

XS2H-D421-@80-A A connector with a cable used to connect the

from the main line. (Used with Special Flat Cable only.)

Cable.

(Used with Special Flat Cable only.)

Water-resistant Terminal to a T-joint. Can be used as a power supply cable (with

the female socket connected to the Waterresistant Terminal).

Can be used as an I/O cable for sensors that have connectors (with the male plug connected to the Water-resistant Terminal, if the product has a model number suffix “A”).

Water-resistant Terminal to a T-branch connector.

Can be used as a power supply cable (with the female socket connected to the Waterresistant Terminal) and the other end wired to a commercially available terminal block.

Water-resistant Terminal to an I/O device. Can be used as an I/O cable (with the male

plug connected to the Water-resistant Terminal) and the other end wired to the I/O device.

Compatible Devices Section 1-3

Connector Model Comments

Connector Socket Assembly (female for screw, crimp, solder terminals)

Connector Plug Assembly (male for screw, crimp, solder terminals)

T-joint XS2R-D427-5 A joint used to T-branch a VCTF cable (e.g., a

Communications Connector (6 pins)

Shielded Terminator Plug (Male)

Terminal-block Terminator SRS1-T This terminal block has a built-in terminator.

XS2C-D4S7 A connector used to connect to the communi-

XS2C-D4@@ A connector used to connect to the external

XS2G-D4S7 A connector used to connect to the T-joint

XS2G-D4@@ A connector used to connect to the I/O con-

FK-MCP1.5/6-STF-

3.81

MC1.5/6-STF-3.81 A communications connector for connecting

SRS2-1 A shielded connector terminator model con-

cations connector or external power supply connector of the Water-resistant Terminal or a T- j oi n t p l ug .

Applicable cable dia.: 6 to 8 mm

Applicable conductor size: 0.18 to 0.75 mm

power supply connector of the Water-resistant Terminal or a T-joint plug.

Applicable cable dia.: 3 to 6 mm Applicable conductor size: 0.18 to 0.3 or 0.5 to 0.75 mm

socket. Applicable cable dia.: 6 to 8 mm

Applicable conductor size: 0.18 to 0.75 mm

nector of the Water-resistant Terminal or a Tjoint socket.

Applicable cable dia.: 3 to 6 mm Applicable conductor size: 0.18 to 0.3 or 0.5 to 0.75 mm

communications cable or power supply cable).

A communications connector for connecting CJ-series Master Units. The connector can be connected simultaneously to the communications cable (BD H, BD L, BS+, BS–) and communications power supply (BS+, BS–). This connector has screwless terminals for signal lines and connector lock screws.

CJ-series Master Units. The connector can be connected simultaneously to the communications cable (BD H, BD L, BS+, BS–) and communications power supply (BS+, BS–). This connector has screw terminals for signal lines and connector lock screws.

nected to a T-joint.

(Can be used with VCTF cable and Special Flat Cable.)

Note 1. Connect a terminator (Connector Terminator, Shield Terminator, or Termi-

nal-block Terminator) to the following point in the system.

• System with Distinction between Main and Branch Lines: The end of the main line farthest from the Master.

• System with No Distinction Main and Branch Lines: The end of the communications cable farthest from the Master.

2. Use a commercially available terminal block or T-joint to branch or extend VCTF cable.

Compatible Devices Section 1-3

Dimensions

The following diagram shows the dimensions (after assembly). All dimensions are in mm.

SCN1-TH4 Branch Connector

18.5

SCN1-TH4E Extension Connector

18.5

SCN1-TH4T Connector Terminator

Connectors with Cables

XS2W-D42(-(81-( (socket and plug)

Plug (male) Socket (female)

XS2F-D42(-(80-( (socket on one end) XS2H-D421-(80-A (plug on one end)

18.5

SCN1

Socket (female)

Plug (male)

Startup Procedure Section 1-4

Connector Assembly

Socket (Female) (Crimp terminals/Solder terminals) XS2C-D4S7 (Communications) XS2C-D4(( (Power supply and I/O)

XS2R-D427-5 T-joint

Socket (female) Plug (male)

SRS2-1 Shield Terminator Plug (male)

SRS1-T Terminal-block Terminator

Plug (Male) (Crimp terminals/Solder terminals) XS2G-D4S7 (Communications) XS2G-D4(( (Power supply and I/O)

Plug (male)Socket (female)

Socket (female)

Plug (male)

1-4 Startup Procedure

The standard procedure for starting up the CompoBus/S System is as follows:

Selecting Master and Slave

Select the Master and Slaves according to the following items.

• PLC model being used (Refer to

4 Master Unit Specifications and Operations

• Number of Slaves (Refer to 1-3-1 Compatible Masters)

• Maximum I/O points (Refer to

• Slave I/O types (Refer to

fications and Operations

40 20

Mounting Holes

Two, 4.2 dia. or M4

30±0.2

1-3-1 Compatible Masters and SECTION

1-3-1 Compatible Masters)

1-3-2 Slave Units and SECTION 5 Slave Speci-

)

Determining the Communications Mode

Determining System Configuration

Determine the communications mode according to the following items.

• Communications distance (Refer to

• I/O response time (Refer to

2-5 I/O Response Time Characteristics)

2-2-2 Maximum Cable Length)

Determine the CompoBus/S System configuration according to the following items. Select the devices required for connection (such as connectors, terminal blocks, and terminators) according to the system configuration.

Startup Procedure Section 1-4

• Arrangement of Master and Slaves (Refer to page 8 and page 25.)

• Cable types applicable for the communications distance and communications mode (Refer to page 16 and page 29.)

• Connection methods (Refer to page 8 and page 27.)

• Methods for supplying communications and I/O power supplies (Refer to page 31.)

• Connectors and terminal block models (Refer to page 6 and page 27.)

Setting the Master Unit Set the Master Unit according to the model used, referring to

Master Unit Specifications and Operations

CS-series, C200HX/HG/HE-(Z)E, and C200HS Master Units (C200HWSRM21-V1)

• Special I/O Unit unit number

• Number of nodes that can be connected

• Communications mode

CS-series Master Units (CS1W-SRM21)

• Special I/O Unit unit number

• Number of nodes that can be connected

• Communications mode

• Slave registration function (Set in DM Area while connected to the PLC.)

• Communications stop mode setting function

CJ-series Master Units

• Special I/O Unit unit number

• Number of nodes that can be connected

• Communications mode

• Slave registration function (Set in DM Area while connected to the PLC.)

• Communications stop mode setting function

SECTION 4

CQM1 Master Units

• Number of words allocated to the CPU

• Number of bits allocated for each node number

• Communications mode

Setting the Slaves Set the Slave Units, referring to

tions

• Node number

• Communications mode

• Settings specific to each Slave (such as output holding/clearing when communications errors occur)

Wiring Wire and connect the communications cables, communications power supply,

I/O power supply, referring to the device specifications in

Unit Specifications and Operations Operations ing

Starting and Checking Operations

Starting Operations Start operating the Master and Slaves.

Start the CompoBus/S System and check the Master and Slave operations, referring to

, and wiring information in SECTION 3 CompoBus/S System Wir-

SECTION 6 Starting Communications.

SECTION 5 Slave Specifications and Opera-

SECTION 4 Master

, SECTION 5 Slave Specifications and

SECTION 2

CompoBus/S System Specifications and Configuration

This section provides information on CompoBus/S System specifications, methods used to configure a CompoBus/S System, and I/O response times.

2-1 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2-2-1 Main Line/Branch Line Connections . . . . . . . . . . . . . . . . . . . . . . . . 25

2-2-2 Maximum Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2-2-3 Terminator Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2-3 Supplying Power to the Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2-3-1 Using 2-conductor VCTF Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2-3-2 Using 4-conductor VCTF or Special Flat Cable. . . . . . . . . . . . . . . . 34

2-3-3 Limitations of Communications Cable Power Supply . . . . . . . . . . . 35

2-4 System Configuration Using Water-resistant Terminals . . . . . . . . . . . . . . . . . 41

2-5 I/O Response Time Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2-5-1 Slaves Other Than Analog Terminals. . . . . . . . . . . . . . . . . . . . . . . . 42

2-5-2 Slave Analog Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

2-5-3 Slave I/O Delay Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Communications Specifications Section 2-1

2-1 Communications Specifications

This section provides specifications for the CompoBus/S System.

Item Specification

Communications method Special CompoBus/S protocol Communications baud rate High-speed Communications Mode: 750 kbps

Modulation method Baseband method Coding method Manchester coding method Error control checks Manchester code check, frame length check, and parity check Cable VCTF cable

Communications distance

(JIS C 3306)

Special Flat Cable

2-conductor VCTF cable

4-conductor VCTF cable

Special Flat Cable High-speed Communications Mode

Long-distance Communications Mode: 93.75 kbps

Two 0.75 mm Four 0.75 mm

Four 0.75 mm High-speed Communications Mode Main line length: 100 m max.

Branch line length: 3 m max. Total branch line length: 50 m max.

Long-distance Communications Mode Main line length: 500 m max.

Branch line length: 6 m max. Total branch line length: 120 m max.

High-speed Communications Mode Main line length: 30 m max.

Branch line length: 3 m max. Total branch line length: 30 m max.

Long-distance Communications Mode: Flexibly branched, provided that the total length of cable is a maximum of 200 m.

Main line length: 30 m max. Branch line length: 3 m max. Total branch line length: 30 m max.

When 4-conductor VCTF cable or Special Flat Cable is used to connect fewer than 16 Slaves, the main line can be up to 100 m long and the total branch line length can be up to 50 m in High-speed Communications Mode.

Long-distance Communications Mode: Flexibly branched, provided that the total length of cable is a maximum of 200 m.

conductors (2 signal wires)

conductors (2 signal wires and 2 power supply wires)

System Configuration Section 2-2

Item Specification

I/O points, Slaves, usable node numbers, and communications cycle time

C200HW-SRM21-V1 Master Unit (used for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs), CS1W-SRM21 Master Unit (used for CS-series PLCs), CJ1W-SRM21 Master Unit (used for CJ-series PLCs), SRM1 Master Control Unit, and CPM2C-S PLC.

Max. number of I/O points: 64 inputs/64 outputs Usable node numbers: IN0 to IN7 and OUT0 to OUT7

Communications cycle time:

High-speed Communications Mode: 0.5 ms

Long-distance Communications Mode: 4.0 ms Max. number of I/O points: 128 inputs/128 outputs Usable node numbers: IN0 to IN15 and OUT0 to OUT15

Communications cycle time:

High-speed Communications Mode: 0.8 ms

Long-distance Communications Mode: 6.0 ms

CQM1-SRM21-V1 Master Unit (Used in CQM1 PLCs.)

Max. number of I/O points: 64 inputs/64 outputs Usable node numbers: IN0 to IN7 and OUT0 to OUT7 (8-point mode)

Communications cycle time:

High-speed Communications Mode: 0.5 ms

Long-distance Communications Mode: 4.0 ms Usable node numbers: IN0 to IN15 and OUT0 to OUT15 (4-point mode)

Communications cycle time:

High-speed Communications Mode: 0.8 ms

Long-distance Communications Mode: 6.0 ms Max. number of I/O points: 32 inputs/32 outputs Usable node numbers: IN0 to IN3 and OUT0 to OUT3 (8-point mode)

IN0 to IN7 and OUT0 to OUT7 (4-point mode)

Communications cycle time:

High-speed Communications Mode: 0.5 ms

Long-distance Communications Mode: 4.0 ms Max. number of I/O points: 16 inputs/16 outputs Usable node numbers: IN0 to IN1 and OUT0 to OUT1 (8-point mode)

IN0 to IN3 and OUT0 to OUT3 (4-point mode)

Communications cycle time:

High-speed Communications Mode: 0.5 ms

Long-distance Communications Mode: 4.0 ms

Note 1. Refer to the I/O allocations for each Master Unit in SECTION 4 Master Unit

Specifications and Operations for details. For details on the SRM1, refer to

the CompoBus/S SRM1 Master Control Units Operation Manual (W318). For details on the CPM2C-S PLC, refer to the CPM2C-S PLC Operation Manual (W377).

2. The 8-point mode and 4-point mode indicate the number of I/O points allocated to each node number. For details, refer to 4-4-3 I/O Allocations in CQM1 PLCs.

2-2 System Configuration

2-2-1 Main Line/Branch Line Connections

This section describes the connections to the main line and branch lines in the CompoBus/S System. When the system has a main line distinguished from the branch lines, the CompoBus/S communications cable is made with the main line and branch lines. The main line connects the Master and the terminator while the branch lines are branched from the main line. The main and branch lines are different in usage but they are the same cable type. When the system has no main line distinguished from the branch lines, the communications cable can be connected with no special restrictions.

System Configuration Section 2-2

Restrictions on Connections

The following restrictions apply to CompoBus/S connections:

System with Distinction between Main and Branch Lines

The following diagram shows a CompoBus/S System configuration in which the main line must be distinguished from the branch lines under either of the following conditions.

• The system operates in High-speed Communications Mode.

• The system operates in Long-distance Communications Mode with 2-conductor VCTF cable.

Communications Cable

Te r mi n a to r

Master

Communications Power Supply

Slave Slave

Slave Slave Slave

Slave

Main line

Branch line

Power supply cable

(Communications power is supplied to each Slave separately when 2-conductor VCTF cable is used.)

T: T-branch connection M: Multidrop connection

• The main line is the cable that connects the ends of the system. The maximum length of the main line depends on the communications mode, the type of cable, and the number of Slaves being used. Refer to 2-2-2 Maxi- mum Cable Length for details.

• A branch line is any cable that branches off the main line. The maximum length of a single branch line and the maximum total length of all branch lines in a CompoBus/S system vary according to the communications mode, the types of cables used, and the number of Slaves. Refer to 2-2-2 Maximum Cable Length for details.

• The Master must be connected at one end of the main cable and the terminator must be connected at the other end. The Master cannot be connected at a point along the main line or on a branch line.

• Only one Master can be connected in the CompoBus/S System. The range of usable node numbers that can be connected depends on the model of Master being used and its settings. Refer to 2-1 Communica- tions Specifications for details.

• Only one Slave can be connected to each branch line. It is not possible to branch again from a branch line.

• There are three types of cable that can be used (2-conductor VCTF cable, 4-conductor VCTF, and Special Flat Cable), but it is not possible to use more than one type of cable in the same CompoBus/S System.

System with No Distinction between Main and Branch Lines

The following diagram shows a CompoBus/S System configuration in which no distinction is required between the main line and the branch lines under either of the following conditions.

• The system operates in Long-distance Communications Mode with 4-conductor VCTF cable

• The system operates in Long-distance Communications Mode with Special Flat Cable

System Configuration Section 2-2

Slave

Communications Power Supply

Slave

Master

Slave

Communications cable Power supply cable

Slave

Slave Slave Slave

T: T-branch connection

M: Multidrop connection

Slave

Terminator

• When the system operates in Long-distance Communications Mode with Special Flat Cable or 4-conductor VCTF cable used, there will be no need to distinguish main and branch lines for the system. It is not, however, possible to use more than one type of cable in the same CompoBus/S system.

• The maximum length of cable used for the CompoBus/S system is 200 m regardless of the type of communications cable.

• Only a single terminator farthest from the Master is required regardless of the position the Master is connected to the communications cable.

• More than a single Master cannot be connected to the CompoBus/S System. The possible range of node numbers varies with the type of Master and settings in the Master. Refer to 2-1 Communications Specifications Specifications for details.

Connection Methods The Master and Slaves can be connected by either the T-branch method or

the multidrop method.

T-branch Method

In the T-branch method, a branch connector, a commercially available terminal block, or a T-joint is used to create a branch from the main line and connect a Slave when the main line is distinguished from branch lines. The maximum length of the branch line varies according to the communications mode and the type of cable used. For details, refer to 2-2-2 Maximum Cable Length. A secondary branch cannot be connected to the branch line when the main line is distinguished from branch lines.

System with Distinction between Main and Branch Lines

Main line

Branch line

Slave

System with No Distinction between Main and Branch Lines

Cable

Node

The actual wiring for T-branch connections is given next.

System Configuration Section 2-2

1,2,3... 1. Branch Connector

When using Special Flat Cable, connect a Branch Connector to the main line to create a branch, as shown in the following diagram.

Main line cable

Branch line cable

Special CompoBus/S Connector

2. Terminal Block Connector A commercially available relay terminal block (a terminal block in which the opposite terminals are connected) can be used to create a branch line, as shown in the following diagram.

Main line cable

Communications cable High side (BD H)

Shorting bar

Communications cable High side (BD H)

Branch line cable

Main line cable

Communications cable Low side (BD L)

Shorting bar

Relay terminal block

Communications cable Low side (BD L)

3. T- jo in t When 4-conductor VCTF cable is used, use a T-joint to branch the line as shown below.

Cable

Socket (female)

T-joint

Cable

Plug (male)

Cable

Multidrop Method

In the multidrop method, nodes are connected directly to the cable. It is not necessary to create a new branch line or use special connectors with the mul-

System Configuration Section 2-2

tidrop method. When the main line is distinguished from branch lines, Slaves must be connected to the main line.

System with Distinction between Main and Branch Lines

Main line

Slave

The actual wiring for multidrop connections is shown in the following diagram. The Slave is connected to the signal wires from the Master side of the system as well as the signal wires from the terminator side of the system.

Main line cable from the Master or previous Slave

2-2-2 Maximum Cable Length

The main line length is the total length of the cable connecting the Master and the terminator at the farthest end of the system. The branch line length is the length of a cable connecting a Slave to the main line and the total branch line length is the sum of lengths of all of the branch lines in the system.

When the system has no main line distinguished from the branch lines, the communications cable can be connected with no particular restrictions, provided that the total length of communications cable is a maximum of 200 m.

System with No Distinction between Main and Branch Lines

Cable

Node

Connects to the Slave's BD L terminal.

Communications cable Low side (BD L)

Connects to the Slave's BD H terminal.

Main line cable to the next Slave or terminator

Communications cable High side (BD H)

Master

Branch line length

Total branch line length = L

L1L

Slave Slave Slave Slave

Communication

mode

High-speed Communications Mode

Main line

Te r mi nator

Slave Slave

+ L2 + L3 + L4 + L

Slave

The maximum main line, branch line, total branch line, and total cable lengths depend on the type of cable and number of Slaves being used, as shown in the following table.

Cable type Cable length

Main line Branch line Total of branch lines

2-conductor VCTF cable 100 m max. 3 m max. 50 m max. 4-conductor VCTF cable 30 m max.

(See note.)

Flat 30 m max.

(See note.)

3 m max. 30 m max.

(See note.)

3 m max. 30 m max.

(See note.)

System Configuration Section 2-2

(

Special Flat Cable

Master

Branch length: 3 m max.

Communication

Cable type Cable length

mode

Long-distance Communications Mode

2-conductor VCTF cable 500 m max. 6 m max. 120 m max. 4-conductor VCTF cable Total length of communications cable: 200 m max.

Flat Total length of communications cable: 200 m max.

Note If the number of connected Slaves does not exceed 16 when using the High-

speed Communications Mode, the main line length can be up to 100 m and the total branch line length can be up to 50 m (i.e., the same as for the VCTF cable). An example is given below.

Refer to the following examples.

•Example 1

Main line length: 100 m max.

Slave (8 outputs)

Slave (8 outputs) × 5 Units Slave (8 inputs) × 5 Units

Slave (8 outputs)

Slave (8 inputs)

Main line Branch line Total of branch lines

(with no distinction between main and branch lines)

Termi-

nator

Slave (8 inputs)

Slave (16 inputs)

Slave (16 outputs)

Slave (16 inputs)

Total branch line length: 50 m max.

Slave (16 outputs)

Special Flat Cable

Master

Branch length: 3 m max.

Slave (16 outputs)

Slave

No. of Slave Units

Number of I/O points

•Example 2

Slave (16 outputs)

16 outputs) × 8 Units

No. of Slave Units

Number of I/O points

Do not mix 2-conductor VCTF, 4-conductor VCTF, and Special Flat Cables in the same system.

Refer to the Appendix Standard Models for details on compatible communications cables.

8-input Slave × 5 Units + 8-output Slave × 5 Units + 16-input Slave × 2 Units + 16-output Slave × 2 Units = 14 Slave Units

72 inputs and 72 outputs

Main line length: 100 m max.

Slave (16 outputs)

Slave (16 inputs)

Slave (16 inputs) × 8 Units

16-input Slave × 8 Units + 16-output Slave × 8 Units = 16 Slave Units

128 inputs and 128 outputs

Slave (16 inputs)

Te r mi -

nator

Total branch line length: 50 m max.

Note When 4-conductor VCTF or Special Flat Cable is used to supply the Slave’s

communications power, the length of the cable may be limited by current and voltage drops in the cable and connectors. Refer to 2-3-3 Limitations of Com- munications Cable Power Supply on page 35 for details.

Supplying Power to the Slaves Section 2-3

2-2-3 Terminator Connection

System with Distinction between Main and Branch Lines

Master

Slave

Slave Slave

System with No Distinction between Main and Branch Lines

A terminator must be connected to the end of the main line opposite the Master (the farthest end of the cable) in order to stabilize communications. When the last Slave in the system is connected to the main line by a T-branch connector, make sure that the terminator is farther from that T-connection than the Slave so that the terminator is farther from the Master.

The following diagram shows the connections in a typical CompoBus/S System with distinguished main and branch lines. The power supply system has been omitted.

Terminator

Slave

Slave Slave

Branches can't be made from branch lines.

Slave Slave

Slave

Main line Branch line

Slave

Branch line L L

> L

T: T-branch connection M: Multidrop connection

≤ 3 m

A terminator must be connected to the end of the communications cable farthest from the Master in order to stabilize communications. When the last Slave in the system is connected to the communications cable by a T-branch connector, extend the cable to connect the terminator or connect the terminator at the T-branching position. The cable distance to the terminator includes the total cable length.

2-3 Supplying Power to the Slaves

The Slaves must be supplied with power for communications and some Slaves must have a separate power supply for I/O. The methods for supplying power to the Slaves depend on the type of communications cable being used.

Slave power

supply

Network power supply

Multiple power supply

Local power supply

1 For both commu-

2 For communica-

1 For both commu-

Usage 2-conductor VCTF

nications and I/O

tions

For I/O External power sup-

nications and I/O

cable

External power supply (collective supply possible)

ply (collective supply impossible)

External power supply (collective supply impossible)

4-conductor VCTF

cable

Special Flat Cable

Power supplied via 4conductor VCTF cable, Special Flat Cable, or from external power source

External power source

Supplying Power to the Slaves Section 2-3

The following table groups the Slaves according to their power supply requirements.

Power supply Slave type Model numbers

Network power supply

Multiple power supplies

Local power supply

--- Remote I/O

--- CPM1A/CPM2A

--- CPM2C I/O Link

Sensor Terminals

Fiber Amplifier Communications Unit

Analog I/O Terminals

Remote Terminals with Transistors

Connector Terminals with Transistors

Water-resistant Ter mi n als w ith Transistors

Sensor Terminals with Connector Outputs

Remote Terminals with Relays

Remote Terminals with Power MOS FETs

Modules

I/O Link Unit

Unit

SRT1/SRT2-ID08S SRT1/SRT2-ND08S

E3X-SRT21

SRT2-AD04 SRT2-DA02

SRT1/SRT2-ID04 SRT1/SRT2-ID04-1 SRT1/SRT2-ID08 SRT1/SRT2-ID08-1 SRT1/SRT2-ID16 SRT1/SRT2-ID16-1 SRT1/SRT2-OD04 SRT1/SRT2-OD04-1 SRT1/SRT2-OD08 SRT1/SRT2-OD08-1 SRT1/SRT2-OD16 SRT1/SRT2-OD16-1

SRT2-VID08S SRT2-VID08S-1 SRT2-VID16ML SRT2-VID16ML-1 SRT2-ID32ML SRT2-ID32ML-1 SRT2-VOD08S SRT2-VOD08S-1 SRT2-VOD16ML SRT2-VOD16ML-1

SRT2-ID04CL SRT2-ID04CL-1 SRT2-ID08CL SRT2-ID08CL-1

SRT1/SRT2-OD08S

SRT1/SRT2-ROC08 SRT1/SRT2-ROC16

SRT1/SRT2-ROF08 SRT1/SRT2-ROF16

SRT1/SRT2-ID16P SRT1/SRT2-OD16P

CPM1A-SRT21

CPM2C-SRT21

SRT1/SRT2-ID16T SRT1/SRT2-ID16T-1 SRT1/SRT2-OD16T SRT1/SRT2-OD16T-1 SRT1/SRT2-MD16T SRT1/SRT2-MD16T-1

SRT2-OD32ML SRT2-OD32ML-1 SRT2-MD32ML SRT2-MD32ML-1

SRT2-OD04CL SRT2-OD04CL-1 SRT2-OD08CL SRT2-OD08CL-1

Communications Power Supply

OMRON’s S82-series Power Supplies are recommended for supplying power to the Slaves for communications. Select a power supply with a current capacity greater than the total power consumed by all of the Slaves that will be connected.

Note Be sure to provide a power supply with a current capacity sufficient to handle

the surge current that flows at startup.

Supplying Power to the Slaves Section 2-3

2-3-1 Using 2-conductor VCTF Cable

Power cannot be supplied to the Slaves through 2-conductor VCTF cable. When a CompoBus/S System is being constructed with 2-conductor VCTF cable, each Slave must be supplied with power along a route separated from the VCTF cable. Furthermore, an I/O power supply must be provided for Slaves that require an I/O power supply.

Independent Power Supplies

Multidrop (See note.)

Slave

For I/O For I/O

– +

Branch line

HL HL

Slave

–

Slave

Branch line

Te r mi -

nator

Master

2-conductor VCTF cable

H L

Slave

Branch line (See note.)

–

For Communications

–

Powe r supply

Common power supply for communications and I/O

Network power supply

–

Powe r

supply

Communications power supply

For Communications

–

Powe r supply

I/O power supply

–

Powe r supply

Communications power supply

–

Powe r supply

I/O power supply

–

Powe r supply

Common power supply for communications and I/O

Multiple power supplies Local power supply

Note Both T-branch connections and multidrop connections are possible with each

type of power supply.

Common Power Supply When using a common power supply with long power lines, make sure that

there isn’t a significant decline in the supply voltage due to attenuation.

Multidrop (See note.)

For I/O

–

Slave

–

Branch line Branch line

HL HL

For I/O

Slave

–

Slave

Te r mi nator

–

Master

2-conductor VCTF cable

H L

Slave

Branch line (See note.)

–

Note that voltage will drop if the power supply

–

Powe r supply

Common power supply for communications and I/O

line is too long.

Network power supply

Note Both T-branch connections and multidrop connections are possible with each

type of power supply.

It is possible to supply all communications power collectively via a single line. If the power supply line is too long, however, the conductor resistance of the cable will cause voltage to drop. For information concerning the allowable length of the collective power supply cable, refer to 4. Cable Length Limit Due

For Communications

–

Powe r supply

I/O power supply

–

Powe r supply

I/O power supply

–

Powe r supply

Common power supply for communications and I/O

Multiple power supplies Local power supply

Supplying Power to the Slaves Section 2-3

to Voltage Drop in 2-3-3 Limitations of Communications Cable Power Supply

on page 37. In this case, replace the figure stated for the cable’s resistance with the conductor resistance of the collective communications power supply cable in your calculations to verify the allowable cable length.

Note Depending on the loads connected, multiple power supplies for I/O may gen-

erate electrical noise. Even for a collective power supply, the I/O power supply should be separated from the communications power supply so that it does not affect other Slaves. Similarly, a local power supply used for both communications and I/O should also be kept separate from communications power supplies.

2-3-2 Using 4-conductor VCTF or Special Flat Cable

Power can be supplied to the Slaves through 4-conductor VCTF or Special Flat Cable. When a CompoBus/S System is being constructed with 4-conductor VCTF or Special Flat Cable, the method used to supply power to the Slaves depends on the type of Slave being used.

The following diagram shows an example of a CompoBus/S System connected with Special Flat Cable that uses each type of Slave. There is no difference in configuration when 4-conductor VCTF cable is used.

Power lines

Powe r supply

H L

+ –

Master signal

H: BD H terminal L: BD L terminal +: BS + terminal –: BS – terminal

: Power supply + terminal V

–

: Power supply – terminal G

Note 1. Be sure to insulate unused Special Flat Cable wiring when using a Slave

Signal lines

–

Power Signal

Network power supply

that requires a local power supply or using an external power supply for communications in a Slave that requires multiple power supplies.

Branch connector

–

Power Signal

For Communications

For I/O

Powe r

–

I/O power supply

Communications power supply

Multiple power supplies

Special Flat Cable

+–+

Power Signal

For Communications

For I/O

Powe r

–

I/O power supply

–

Insulate unused wires.

Signal

Powe r

–

Common power supply for communications and I/O

Local power supply

Connector with terminator

Supplying Power to the Slaves Section 2-3

2. If multiple CompoBus/S Systems are used, provide a separate communications power supply for each CompoBus/S System to prevent unstable operation due to unwanted noise paths in the power supplies of the CompoBus/S Systems.

Main line

Slave

Main line

Slave

CompoBus/S System 1

CompoBus/S System 2

Master

Communications power supply (See note.)

Master

Communications power supply (See note.)

Note: Use a separate communications power supply for each line.

3. When using CJ-series Master Units, use 6-pin communications connectors that allow simultaneous connection of communications and power supply cables. Power can be supplied to the Slaves easily by connecting the communications power supply to the Master Unit without preparing the communications cables, as shown in the following diagram.

CJ-series Master Unit

Special Flat Cable or 4-conductor VCTF cable (Wiring Special Flat Cable is easy as it is connected to the communications connector in the same order.)

Communications

Power supply

BS+ BDH BDL BS− BS+ BS−

−

Powe r

supply

−

The BS+ and BS

– terminals of the CJ-series Master Unit’s communica-

tions connector are connected internally. (The Master Unit does not use the BS+ or BS

– terminals.)

2-3-3 Limitations of Communications Cable Power Supply

Check the following points when using 4-conductor VCTF or Special Flat Cable to supply power to Slaves.

• The 4-conductor VCTF or Special Flat Cable’s allowable current

• The Extension Connector’s allowable current (when using an Extension Connector)

• The allowable current of the CJ-series Master Unit’s communications connector (when using CJ-series Master Units)

• Cable length limit due to voltage drop

1. 4-conductor VCTF or Special Flat Cable’s Allowable Current The allowable current through the 4-conductor VCTF or Special Flat Cable

depends on the ambient temperature, as shown in the following tables.

Supplying Power to the Slaves Section 2-3

• 4-conductor VCTF Cables

Ambient temperature (°C) 0 5 10 15 20 25 30 35 40 45 Allowable current (A) 777777765.54.5

• Special Flat Cables

Ambient temperature (°C) 0 5 1015202530354045 Allowable current (A) 13121110876543

The total current supplied to the Slaves must be less than the allowable current, regardless of whether the system has a main line distinguished from the branch lines or not.

Master

Power supply (24 V DC)

Te r mi -

nator

Slave

Current: I

For example, at 30

Slave

Current: I

°C the total current consumption of the Slaves must be

Slave

Current: I

6 A or less when Special Flat Cable is used.

2. Extension Connector or T-joint’s Allowable Current The allowable current through an Extension Connector is 4 A and that

through a T-joint is 3 A. Therefore, the total current supplied to the Slaves beyond the Extension Connector or T-joint must be less than 4 A, regardless of whether the system has a main line distinguished from the branch lines or not.

Extension Connector I

+ ... +IN ≤ 4 A

1+I2

, I2, IN: current consumption of each Slave after Extension Connector)

T-joint I

+ ... +IN ≤ 3 A

1+I2

, I2, IN: current consumption of each Slave after the T-joint.)

Master

Power supply (24 V DC)

Example

Extension Connector used

Extension Connector

Te r mi -

nator

Slave

Current: I

Current consumption of Slaves beyond

Slave

Current: I

the Extension Connector

Slave

Current: I

Note When a commercially available terminal block is used, be sure the

current consumption is within the allowable current of the block.

Supplying Power to the Slaves Section 2-3

3. Allowable Current for CJ-series Communications Connector The allowable current for the communications connector of the CJ-series

Master Unit is 4 A. The total current consumption of Slaves must be no more than 4 A when the CJ-series Master Unit communications connector is connected to the communications power supply. (The same applies when there is no distinction between main and branch lines.)

+ ... +IN ≤ 4 A

1+I2

, I2, w..., IN represents the current consumption of each Slave being sup-

plied with communications power supply.)

Master

Power supply

(24 V DC)

Slave

Current: I

Current consumption of Slaves being supplied with communications power supply.

4. Cable Length Limit Due to Voltage Drop The voltage drop can be calculated from the cable’s length, the cable’s re-

sistance, and the Slave’s current consumption. (The cable’s length is multiplied by 2 because there are two wires carrying current, + and –.)

Voltage drop (V) = Current (A) (

Ω)

× (Cable’s length × 2 × Cable’s resistance)

The allowable voltage range for the Slaves is 14 to 26.4 V DC, so the maximum voltage drop is 10 V DC when using a 24-V DC power supply.

The equation yielding the voltage drop for the following system is shown below. This is an approximate equation allowing some margin for error.

Slave

Current: I

Terminator

Slave

Current: I

Te r mi -

nator

Power supply

(24 V DC)

Slave

Current: I

≥ (I

Slave

Current: I

+ I2 + ... + IN) × L × 2 × R

Slave

Current: I

10: Max. voltage drop (V) R: Resistance of the Special Flat Cable (

Ω/m)

4-conductor VCTF cable: 0.025 Special Flat Cable: 0.027

+ L2 + ... + LN: Length of cable between the Slaves

The maximum cable length (L) can be calculated from this equation as follows:

≤ 10 / { (I

+ I2 + ... + IN) × 2 × R}

↓

L ≤ 200 / (I1 + I2 + ... + IN) ... 4-conductor VCTF cable 185 / (I

+ I2 + ... + IN) ... Special Flat Cable

Supplying Power to the Slaves Section 2-3

L is the length of cable to the last Slave (L1 + L2 + ... + LN).

+ I2 + ... + IN: Current consumption of each Slave (A)

Note 1. The allowable voltage range for a Sensor Terminal which has a 2-wired

method Proximity Switch connected is 20.4 to 26.4 V DC. If the Special Flat Cable’s voltage is below 20.4 V DC, use an external power supply for the Sensor Terminal.

2. When there is no distinction between main and branch lines, substitute the cable length between the communications power supply and the farthest end for L in the above formula. If the communications power supply is at the midway point in the cable path, the cable length on the left-hand side added with that on the right-hand side will be the maximum length of the communications cable. If only some Slaves are located far from the Master, the maximum cable length calculated from the cable length to the last Slave may be very short. In such cases, calculate the voltage drop at each branching position and Slave position and design the system with an appropriate margin so that the voltage applied to each Slave will be high enough.

Example

Communications cable: Special Flat Cable In this example a single power supply can’t provide power to all of the Slaves, so the Slaves are divided into 2 groups and supplied by 2 power supplies.

Master

Power supply (24 V DC)

Group A

Cable length L

Slave Slave Slave Slave

500 mA

Slave Slave Slave Slave

500 mA

Total current consumption I

500 mA

= 50 m

500 mA

= 3.55 A

Check that each group meets the current consumption conditions. In this case the ambient temperature is 30

• Group A

Special Flat Cable’s Allowable Current:6 A Cable Length Limit due to Voltage Drop:185/3.55 = 52 m

• Group B

Special Flat Cable’s Allowable Current:6 A Extension Connector’s Allowable Current: 4.5 A Cable Length Limit due to Voltage Drop:185/4 = 46 m

Relay terminal Extension Connector

Power supply

(24 V DC)

500 mA

Group B

Cable length L

Slave Slave Slave

500 mA

Slave Slave Slave

500 mA

Total current consumption I

= 45 m

500 mA

Total current consumption beyond the Extension Connector I

°C.

≥ 3.55 A (I

≥ 4 A (I

500 mA

)

Slave

500 mA

= 4 A

= 1.5 A

)

≥ 50 m (L

≥ 1.5 A (I

≥ 45 m (L

Te r mi -

nator

)

Supplying Power to the Slaves Section 2-3

When dividing the Slaves into groups to supply power, connect the groups using a standard relay terminal like the one shown in the following diagram.

Voltage Drops Due to Wiring

Power supply

(24 V DC)

Insulate unused wires.

Power supply B (24 V DC)

Relay terminal

When components such as circuit protectors, contactors, connectors, and fuses are incorporated in the wiring, the internal resistance and contact resistance of these components can have an effect on voltage drops as well as the conductor resistance of the cable itself. When designing the wiring, attention must be paid to these resistance values as well.

CP (circuit protector, breaker, etc.)

Cable resistance Contact resistance

of relays, contactors, contacts, etc.

Connector

Communications power + (BS +, brown)

Communications data high (BD H, black) Communications data low (BD L, white)

Communications power – (BS –, blue)

Slave

Wiring must be designed to provide a stable operating voltage to the terminal Slave as well.

Arrangement of Power Supplies

Power supply

(24 V DC)

Note The resistance and allowable current varies according to the cross section,

material, and structure of the cable, as well as the ambient temperature. When designing the wiring and selecting the cables to be used, refer to the specifications stated by the cable manufacturer.

In systems in which the I/O power supply for the entire system is supplied, it is necessary to take into account the power consumption of each device and load. Cables selected for use with the terminal Slave or load should also keep voltage fluctuations within the allowable range. Care must also be taken to ensure that the total current on the lines is within the range of the permissible current of the cable, and that the capacity of the power supply is adequate.

Slave Slave Slave

∆E

Load

∆E

Load Load

∆E

Wiring must be designed to provide a stable operating voltage to the last load as well.

Examine the following points when deciding whether to supply I/O power for the entire system from a single source, or to install multiple power supplies.

Supplying Power to the Slaves Section 2-3

1,2,3... 1. Supplying I/O Power for Slaves from Multiple Power Supplies

Supplying I/O power from several sources rather than from a single source enables line current to be reduced, and reduces voltage drops.

. . . . . .

Slave Slave Slave Slave

CPCP

Power supply

(24 V DC)

2. Supplying Power from Single Unit Use the following methods for keeping voltage drops within allowable

range when power is supplied from a single source.

• Increase cable thickness.

• Raise output voltage of power supply slightly.

• Shorten wiring distances.

3. Considerations Relating to Power Supply Malfunctions It is necessary to examine system operation in the event of a power supply

malfunction. Example: a) Design the system to halt operation of all loads in the event of a single

power supply failure.

b) Design the system to prevent all loads stopping operation by installing

more than one power supply.

4. Cost Considerations It is also necessary to examine the costs associated with I/O power supply

installation, such as the number of power supplies, cable thickness, cable length, and the labor required.

Power supply

(24 V DC)

System Configuration Using Water-resistant Terminals Section 2-4

2-4 System Configuration Using Water-resistant Terminals

Use 4-conductor VCTF cable for communications when Water-resistant Terminals are used.

Wire the cables as shown below regardless of whether the system has a main line distinguished from the branch lines or not.

CompoBus/S Master Unit

Connector assembly

(female)

Insulated power supply line

4-conductor VCTF cable

Communications power supply

I/O power supply

4-conductor VCTF cable (0.75 mm

VCTF cable

Insulated communications line

Note Use VCTF cable for the external power supply. OMRON’s Connec-

To connect Slaves other than the Water-resistant Terminals, use communications cable with no connectors and wire the cable with crimp terminals. If the cable requires water resistance, use a commercially available terminal block instead of T-joints.

T-joint

Connector

T-joint

Connector assembly (male)

(See note.)

Connector assembly (male)

conductors)

assembly (female)

Connector assembly (female)

Watertight Terminals

Connector assembly (female)

T-joint

(See note.)

Connector assembly (male)

Connector assembly

(See note.)

(male)

Connector assembly (male)

tors with Cables can be used as well.

Connector assembly (female)

(See note.)

Connector assembly (female)

T-joint

Connector assembly (male)

T-joint

Shield terminator (male)

(See note.)

Connector assembly (male)

I/O device

Note When using 4-conductor VCTF Connector with Cable Assemblies, use one of

the following combinations of cable conductor colors and signals for stable communications.

Conductor

color

Pattern 1 Pattern 2 Pattern 3 Pattern 4

White BD H BS + BS – BD L Red BS + BS – BD L BD H Green BS – BD L BD H BS + Black BD L BD H BS + BS –

2-5 I/O Response Time Characteristics

This section explains the minimum and maximum I/O response times of the CompoBus/S System. Use this section for reference when planning operations that require precise I/O timing.

The I/O response time is the time it takes from the reception of an input signal at a CompoBus/S Input Slave to the output of the corresponding output signal at a CompoBus/S Output Slave.

The information provided here, however, is only for when a Communications Unit is used as the Master Unit. For details on using the SRM1 Master Control Unit and CPM2C-S Series, refer to the CompoBus/S SRM1 Master Control Units Operation Manual (W318) or CPM2C-S PLC Operation Manual (W377).

Signal

I/O Response Time Characteristics Section 2-5

2-5-1 Slaves Other Than Analog Terminals

Minimum I/O Response Time

PLC cycle

Master Unit processing

Communications cycle

Slave processing

Input

Output

The following timing chart shows the minimum I/O response time.

TI/O TPLC

TM-in-min TM-out-min

TS(IN)

Minimum I/O response time (T

TS(OUT)

MIN

OUT

)

The minimum I/O response time is the total of the following terms:

= IN + T

MIN

: Minimum I/O response time

MIN

: PLC’s cycle time

PLC

S(IN)

+ T

M-in-min

+ T

I/O

+ T

PLC

+ T

M-out-min

+ T

S(OUT)

+ OUT

IN: Input delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times on

page 51.)

OUT: Output delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times on

page 51.)

: Input data transmission time for one node.

S (IN)

High-speed Communications Mode: 20

µs

M-in-min

M-out-min

S (OUT)

Long-distance Communications Mode: 160

µs

: Minimum input processing time in the Master

CS-series, C200HX/HG/HE-(Z)E, C200HS, or CQM1 Master Unit: T

M-in-min

= 0 µs

CS-series Master Units: T

M-in-min

=20 µs (allocated words for 1 unit number),

µs (allocated words for 2 unit numbers)

CJ-series Master Units: T

M-in-min

= 25 µs

: Minimum output processing time in the Master

CS-series, C200HX/HG/HE-(Z)E, C200HS, of CQM1 Master Unit: T

M-out-min

= 0 µs

CS-series Master Units: T

M-out-min

= 33 µs (allocated words for 1 unit number),

µs (allocated words for 2 unit numbers)

43.5

CJ-series Master Unit: T

M-out-min

= 45 µs

: Output data transmission time for one node.

High-speed Communications Mode: 15

µs

I/O Response Time Characteristics Section 2-5

Long-distance Communications Mode: 110 µs

: I/O refreshing time

I/O

CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Master Units

PLC Usable node number setting

IN0 to IN7 and

OUT0 to OUT7

CS Series, and C200HX/ C200HG/ C200HE-(Z)E

C200HS T

= 440 µsT

I/O

= 1,000 µsT

I/O

CS-series Master Units

PLC Usable node number setting

IN0 to IN7 and

OUT0 to OUT7

CS1 (without -H suffix) T

CS1-H T

= 160 µsT

I/O

= 120 µsT

I/O

Note 1. The values in the above table are applicable when con-

nected to the CPU Rack. Add another 20 ues shown in the table when connecting to an Expansion Rack

2. Add another 20 µs to the values shown in the table

when using the Slave registration function or communications stop mode.

IN0 to IN15 and

OUT0 to OUT15

= 880 µs

I/O

= 2,000 µs

I/O

IN0 to IN15 and

OUT0 to OUT15

= 180 µs

I/O

= 130 µs

I/O

µs to the val-

CJ-series Master Units

PLC Usable node number setting

CJ1 (without -H suffix) T

CJ1-H T

IN0 to IN7 and

OUT0 to OUT7

= 160 µsT

I/O

= 120 µsT

I/O

IN0 to IN15 and

OUT0 to OUT15

= 180 µs

I/O

= 130 µs

I/O

Note 1. The values in the above table are applicable when con-

nected to the CPU Rack. Add another 20

µs to the val-

ues shown in the table when connecting to an Expansion Rack

2. Add another 20 µs to the values shown in the table

when using the Slave registration function or communications stop mode.

CQM1 Master Units

PLC PLC word allocation setting

2 words 4 words 8 words

CQM1 T

= 15 µsT

I/O

= 30 µsT

I/O

= 60 µs

I/O

I/O Response Time Characteristics Section 2-5

Maximum I/O Response Time

PLC cycle

Master Unit processing

Communications cycle

Input

Slave processing

Output

The following timing chart shows the maximum I/O response time.

PLC

TM-out-min

OUT

)

MAX

PLC

TM-in-max

Maximum I/O response time

The maximum I/O response time is the total of the following terms:

= IN + TS + T

MAX

: Maximum I/O response time

MAX

: PLC’s cycle time

PLC

M-in-max

+ T

PLC

× 2 + T

M-out-max

+ TS + OUT

IN: Input delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times on

page 51.)

OUT: Output delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times on

page 51.)

: Communications cycle time

Master Usable node

number setting

CS-series, C200HX/ C200HG/C200HE(Z)E, and C200HS Master Unit, CSseries Master Unit, or

IN0 to IN7 and OUT0 to OUT7

IN0 to IN15 and OUT0 to OUT15

CJ-series Master Unit CQM1 IN0 to IN1 and

OUT0 to OUT1 IN0 to IN3 and

OUT0 to OUT3 IN0 to IN7 and

OUT0 to OUT7 IN0 to IN15 and

OUT0 to OUT15

Communications cycle time

High-speed

Communica-

tions Mode

Long-distance

Communica-

tions Mode

500 µs 4,000 µs

800 µs 6,000 µs

500 µs 4,000 µs

800 µs 6,000 µs

I/O Response Time Characteristics Section 2-5

M-in-max

:Maximum input processing time in the Master

CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Master Units

CS Series, C200HX/ C200HG/ C200HE-(Z)E, and C200HS

CS-series Master Units

CS1 (without -H suffix) T

CS1-H T

Note Add another 15

registration function or communications stop mode. CJ-series Master Units

CJ1 (without -H suffix) T

CJ1-H T

Master Number of points/

node number

--- 470 µs

Master Usable node number setting

IN0 to IN7 and OUT0

to OUT7

M-in-max

µs to the values in the table when using the Slave

Master Usable node number setting

IN0 to IN7 and OUT0

M-in-max

= 270 µsT = 220 µsT

to OUT7

= 270 µsT = 220 µsT

Max. input pro-

cessing time

IN0 to IN15 and OUT0 to OUT15

M-in-max

= 320 µs = 270 µs

IN0 to IN15 and OUT0 to OUT15

= 320 µs = 270 µs

Note Add another 15

registration function or communications stop mode. CQM1 Master Units

CQM1 8-point mode 300 µs

M-out-max

:Maximum output processing time in the Master

CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Master Units

CS-series, C200HX/ C200HG/ C200HE-(Z)E, and C200HS Masters

CS-series Master Units

CS1 T

µs to the values in the table when using the Slave

Master Number of points/

Master Usable node number setting

node number

4-point mode 860 µs

node number

--- 650 µs

IN0 to IN7 and OUT0

to OUT7

M-out-max

= 100 µsT

Max. input pro-

cessing time

Max. output pro-

cessing time

IN0 to IN15 and OUT0 to OUT15

M-out-max

= 130 µs

Note Add another 15

µs to the values in the table when using the Slave

registration function or communications stop mode.

I/O Response Time Characteristics Section 2-5

CJ-series Master Units

Master Usable node number setting

CJ1 T

IN0 to IN7 and OUT0

to OUT7

M-out-max

= 100 µsT

IN0 to IN15 and

OUT0 to OUT15

M-out-max

= 130 µs

Recognition of Slave I/O Status at Startup

Note Add another 15

µs to the values in the table when using the Slave

registration function or communications stop mode. CQM1 Master Units

Master Number of points/

node number

CQM1 8-point mode 480 µs

4-point mode 1,040 µs

Max. output pro-

cessing time

When the CompoBus/S System is turned ON, the I/O of Slaves connected to CQM1 Masters may not become effective at the same time as the I/O of Slaves connected to CS-series, CJ-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Masters.

CS-series, CJ-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Masters

The I/O of a Slave connected to a CS-series, C200HX/C200HG/C200HE(Z)E, C200HS, or CJ-series Master becomes effective when the Active Node Flag for the Slave goes ON.

CQM1 Masters

The I/O of a Slave connected to a CQM1 Master becomes effective some time after the Master’s PLC is turned ON.

In High-speed Communications Mode: (PLC cycle time) + 118 ms In Long-distance Communications Mode: (PLC cycle time) + 720 ms.

2-5-2 Slave Analog Terminals

Minimum I/O Response Time

PLC cycle

Master Unit processing

Communications cycle

Input

Slave processing

Output

The following timing chart shows the minimum I/O response time.

I/O

TM-in-min

(IN)

Minimum I/O response time

The minimum I/O response time is the total of the following terms:

PLC

T -out-min

(OUT)

OUT

)

MIN

I/O Response Time Characteristics Section 2-5

= IN + T

MIN

: Minimum I/O response time

MIN

: PLC’s cycle time

PLC

Ts (IN): Input data transmission time for one node

High-speed Communications Mode: 20 Long-distance Communications Mode: 160 µs

M-in-min

:Input processing time in the Master

CS Series, C200HX/C200HG/ C200HE-(Z)E, and C200HS

CS Series 20 µs (allocated words for 1 unit

CJ Series 25 µs CQM1 120 µs

S(IN)

+ T

M-in-min

+ T

I/O

+ T

PLC

+ T

M-out-min

+ T

µs

Master Input processing time

160 µs

number), 25 µs (allocated words for 2 unit numbers)

S(OUT)

+ OUT

M-out-min

S (OUT)

: Minimum output processing time in the Master

Master Min. input processing time

CS Series, C200HX/C200HG/ C200HE-(Z)E, and C200HS

CS Series 35 µs (allocated words for 1 unit

CJ Series 45 µs CQM1 40 µs

35 µs

number), 45 µs (allocated words for 2 unit numbers)

: Output data transmission time for one node

High-speed Communications Mode: 15

µs

Long-distance Communications Mode: 110 µs

IN: Input delay in the Slave (Minimum value is 0.) OUT: Output delay in the Slave (Minimum value is 0.)

: I/O refreshing time

I/O

CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Master Units

Master Usable node number setting

IN0 to IN7 and OUT0 to OUT7

CS Series, C200HX/ C200HG/ C200HE-(Z)E

C200HS T

= 440 µsT

I/O

= 1,000 µsT

I/O

IN0 to IN15 and OUT0 to OUT15

= 880 µs

I/O

= 2,000 µs

I/O

CS-series Master Units

Master Usable node number setting

CS1 (without -H suffix) T

CS1-H T

IN0 to IN7 and OUT0 to OUT7

= 160 µsT

I/O

= 120 µsT

I/O

IN0 to IN15 and OUT0 to OUT15

= 180 µs

I/O

= 130 µs

I/O

Note 1. The values in the above table are applicable when con-

nected to the CPU Rack. Add another 20

µs to the values

shown in the table when connected to an Expansion Rack.

I/O Response Time Characteristics Section 2-5

)

2. Add another 20 µs to the values shown in the table when

using the Slave registration function or communications stop mode.

CJ-series Master Units

Master Usable node number setting

IN0 to IN7 and

OUT0 to OUT7

CJ1 (without -H suffix) T

CJ1-H T

= 160 µsT

I/O

= 120 µsT

I/O

Note 1. The values in the above table are applicable when con-

nected to the CPU Rack. Add another 20

shown in the table when connected to an Expansion Rack.

2. Add another 20 µs to the values shown in the table when

using the Slave registration function or communications stop mode.

CQM1 Master Units

Master PLC word allocation setting

2 words 4 words 8 words

CQM1 T

= 15 µsT

I/O

= 30 µsT

I/O

IN0 to IN15 and

OUT0 to OUT15

= 180 µs

I/O

= 130 µs

I/O

µs to the values

= 60 µs

I/O

Maximum I/O Response Time

PLC cycle

Master Unit processing

Communications cycle

Input

Slave processing

Output

The following timing chart shows the maximum I/O response time.

TPLC TPLC

TS(IN-max)

TM-in

Maximum I/O response time (TMAX

TM-out-max

TS(OUT-max)

OUT

The maximum I/O response time is the total of the following terms:

= IN + TS × 3 + T

MAX

= TS

: Maximum I/O response time

MAX

: PLC’s cycle time

PLC

(IN-max)

M-in

+ TS

+ T

PLC

(OUT-max)

× 2 + T

)

M-out-max

+ OUT

IN: Input delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times.) OUT: Output delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times.)

: Communications cycle time = Ts

(IN-max)

+ Ts

(OUT-max)

I/O Response Time Characteristics Section 2-5

(IN-max)

(OUT-max)

CS-series, C200HX/ C200HG/C200HE(Z)E, and C200HS Master Unit, CSseries Master Unit, or CJ-series Master Unit

CQM1 IN0 to IN1 and

: Input processing time in the Master

M-IN

CS Series, C200HX/C200HG/C200HE(Z)E, and C200HS

CQM1 120 µs

: Communications cycle input time

: Communications cycle output time

Master Usable node

number setting

IN0 to IN7 and OUT0 to OUT7

IN0 to IN15 and OUT0 to OUT15

OUT0 to OUT1 IN0 to IN3 and

OUT0 to OUT3 IN0 to IN7 and

OUT0 to OUT7

Master Input processing time

Communications cycle time

High-speed

Communica-

tions Mode

500 µs 4,000 µs

800 µs 6,000 µs

500 µs 4,000 µs

160 µs

Long-dis-

tance Commu-

nications

Mode

CS-series Master Units

IN0 to IN7 and OUT0 to OUT7 IN0 to IN15 and OUT0 to OUT15

= 100 µsT

M-IN

Note Add another 15

Slave registration function or communications stop mode.

CJ-series Master Units

IN0 to IN7 and OUT0 to OUT7 IN0 to IN15 and OUT0 to OUT15

= 100 µsT

M-IN

Note Add another 15

Slave registration function or communications stop mode.

M-out-max

: Maximum output processing time in the Master

CS Series, C200HX/C200HG/C200HE(Z)E, and C200HS

CQM1 230 µs

CS-series Master Units

IN0 to IN7 and OUT0 to OUT7 IN0 to IN15 and OUT0 to OUT15

M-out-max

Usable node number setting

= 130 µs

M-IN

µs to the values shown in the table when using the

Usable node number setting

= 130 µs

M-IN

µs to the values shown in the table when using the

Master Max. input processing time

200 µs

Usable node number setting

= 130 µsT

M-out-max

= 140 µs

I/O Response Time Characteristics Section 2-5

Note Add another 15 µs to the values shown in the table when using the

Slave registration function or communications stop mode.

CJ-series Master Units

Usable node number setting

IN0 to IN7 and OUT0 to OUT7 IN0 to IN15 and OUT0 to OUT15

M-out-max

= 130 µsT

M-out-max

= 140 µs

Recognition of Slave I/O Status at Startup

Note Add another 15

µs to the values shown in the table when using the

Slave registration function or communications stop mode.

CS-series, CJ-series, C200HX/C200HG/C200HE-(Z)E, and C200HS Masters

The I/O of a Slave connected to a CS-series, CJ-series, C200HX/C200HG/ C200HE-(Z)E, and C200HS Master becomes effective when the Active Node Flag for the Slave goes ON.

CQM1 Masters

The I/O of a Slave connected to a CQM1 Master becomes effective some time after the Master’s PLC is turned ON.

In High-speed Communications Mode: (PLC cycle time) +118 ms In Long-distance Communications Mode: (PLC cycle time) +720 ms.

I/O Response Time Characteristics Section 2-5

2-5-3 Slave I/O Delay Times

Model Specifications Input specifications Output specifications

ON delay time OFF delay

SRT1-ID04(-1) 4-point input terminal block 1.5 ms max. 1.5 ms max. --- --SRT1-ID08(-1) 8-point input terminal block 1.5 ms max. 1.5 ms max. --- --SRT1-ID16(-1) 16-point input terminal block 1.5 ms max. 1.5 ms max. --- --SRT1-ID16T(-1) 16-point input 3-tier terminal block 1.5 ms max. 1.5 ms max. --- --SRT1-OD04(-1) 4-point output terminal block --- --- 0.5 ms max. 1.5 ms max. SRT1-OD08(-1) 8-point output terminal block --- --- 0.5 ms max. 1.5 ms max. SRT1-OD16(-1) 16-point output terminal block --- --- 0.5 ms max. 1.5 ms max. SRT1-OD16T(-1) 16-point output 3-tier terminal block --- --- 0.5 ms max. 1.5 ms max. SRT1-MD16T(-1) 8-point output, 8-point input 3-tier

terminal block SRT1-ROC08 8-point relay output --- --- 10 ms max. 10 ms max. SRT1-ROC16 16-point relay output --- --- 10 ms max. 10 ms max. SRT1-ROF08 8-point power MOSFET output --- --- 6 ms max. 10 ms max. SRT1-ROF16 16-point power MOSFET output --- --- 6 ms max. 10 ms max. SRT2-ID04(-1) 4-point input terminal block 1.5 ms max. 1.5 ms max. --- --SRT2-ID08(-1) 8-point input terminal block 1.5 ms max. 1.5 ms max. --- --SRT2-ID16(-1) 16-point input terminal block 1.5 ms max. 1.5 ms max. --- --SRT2-ID16T(-1) 16-point input 3-tier terminal block 1.5 ms max. 1.5 ms max. --- --SRT2-OD04(-1) 4-point output terminal block --- --- 0.5 ms max. 1.5 ms max. SRT2-OD08(-1) 8-point output terminal block --- --- 0.5 ms max. 1.5 ms max. SRT2-OD16(-1) 16-point output terminal block --- --- 0.5 ms max. 1.5 ms max. SRT2-OD16T(-1) 16-point output 3-tier terminal block --- --- 0.5 ms max. 1.5 ms max. SRT2-MD16T(-1) 8-point output, 8-point input 3-tier

terminal block SRT2-ROC08 8-point relay output --- --- 10 ms max. 10 ms max. SRT2-ROC16 16-point relay output --- --- 10 ms max. 10 ms max. SRT2-ROF08 8-point power MOSFET output --- --- 6 ms max. 10 ms max. SRT2-ROF16 16-point power MOSFET output --- --- 6 ms max. 10 ms max. SRT2-VID08S(-1) 8-point input sensor connector 1.5 ms max. 1.5 ms max. --- --SRT2-VID16ML(-1) 16-point input MIL connector 1.5 ms max. 1.5 ms max. --- --SRT2-ID32ML(-1) 32-point input MIL connector 1.5 ms max. 1.5 ms max. --- --SRT2-MD32ML(-1) 16-point input, 16-point output MIL

connector SRT2-VOD08S(-1) 8-point output sensor connector --- --- 0.5 ms max. 1.5 ms max. SRT2-VOD16ML(-1) 16-point output MIL connector --- --- 0.5 ms max. 1.5 ms max. SRT2-OD32ML(-1) 32-point output MIL connector --- --- 0.5 ms max. 1.5 ms max. SRT1-ID16P 16-point input, PCB attachment 1.5 ms max. 1.5 ms max. --- --SRT1-OD16P 16-point output, PCB attachment --- --- 0.5 ms max. 1.5 ms max. SRT2-ID16P 16-point input, PCB attachment 1.5 ms max. 1.5 ms max. --- --SRT2-OD16P 16-point output, PCB attachment --- --- 0.5 ms max. 1.5 ms max. SRT2-AD04 Analog 4-point input AD conversion time: 4 ms max. --- --SRT2-DA02 Analog 2-point output DA conversion time: 2 ms max. --- --SRT1-ID08S 8-point input sensor terminal 1 ms max. 1.5 ms max. --- --SRT2-ID08S 8-point input sensor terminal 1 ms max. 1.5 ms max. --- --SRT1-ND08S 4-point input, 4-point output sensor

terminal

1.5 ms max. 1.5 ms max. 0.5 ms max. 1.5 ms max.

1 ms max. 1.5 ms max. 1.0 ms max. 1.5 ms max.

time

ON delay

time (See

note 1.)

OFF delay

time (See

note 2.)

I/O Response Time Characteristics Section 2-5

Model Specifications Input specifications Output specifications

ON delay time OFF delay

SRT2-ND08S 4-point input, 4-point output sensor

terminal SRT1-OD08S 8-point output sensor terminal --- --- 0.5 ms max. 1.5 ms max. SRT2-OD08S 8-point output sensor terminal --- --- 0.5 ms max. 1.5 ms max. SRT2-ID04CL(-1) 4-point input water-resistant termi-

nal SRT2-ID08CL(-1) 8-point input water-resistant termi-

nal SRT2-OD04CL(-1) 4-point output water-resistant termi-

nal SRT2-OD08CL(-1) 8-point output water-resistant termi-

nal E3X-SRT21 8-point/16-point input Fiber Ampli-

fier Communications Unit

1 ms max. 1.5 ms max. 1.0 ms max. 1.5 ms max.

1.5 ms max. 1.5 ms max. --- ---

--- --- 0.5 ms max. 1.5 ms max.

See below. --- ---

time

Note 1. This is the ON response time for the SRT@-ROC@@

2. This is the OFF response time for the SRT@-ROF@@

ON delay time (See

note 1.)

OFF delay

time (See

note 2.)

Maximum Input Delay Time for Fiber Amplifier Communications Unit

• For up to 8 sensors connected: Maximum ON/OFF data input delay time for unit n = 0.1

• For 9 sensors or more connected: Maximum ON/OFF data input delay time for unit n = 0.2

× n +1.5 (ms)

SECTION 3

CompoBus/S System Wiring

This section explains how to install Units in control panels, wire the signal and power lines, and make other connections needed to assemble a CompoBus/S System.

3-1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3-1-1 Master Unit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3-1-2 Slave Unit Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3-2 Connector Installation (Special Flat Cable Only). . . . . . . . . . . . . . . . . . . . . . 55

3-2-1 Branch Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

3-2-2 Extension Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3-2-3 Connector Terminator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3-3 VCTF Cable Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-3-1 Branching and Extending VCTF Cable . . . . . . . . . . . . . . . . . . . . . . 64

3-3-2 Installing Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

3-4 Master/Slave Connecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-4-1 Crimp Terminal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-4-2 Master and Slave Terminal Connections . . . . . . . . . . . . . . . . . . . . . 67

3-4-3 Cable Connector Wiring and Assembly . . . . . . . . . . . . . . . . . . . . . . 67

3-5 Operations Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Mounting Section 3-1

3-1 Mounting

!Caution A label is stuck to some Masters and Slaves to prevent pieces of wire from

entering the Units. Install and wire the Units with the labels in place. Stray strands of wire could cause malfunctions. Always remove the label after installation and wiring to facilitate cooling. The Units could overheat and malfunction if the labels are not removed.

3-1-1 Master Unit Mounting

The Master Unit mounts to the PLC itself, just like other Units. This section explains only the precautions that should be taken during Master Unit installation. Refer to the PLC’s Installation Guide for details on mounting Units to the PLC or installing the PLC in a control panel.

This section provides information on Communications Master Units. For the SRM1 Master Control Unit and CPM2C-S Series, refer to the SRM1 Opera- tion Manual and CPM2C-S Operation Manual.

3-1-2 Slave Unit Mounting

This section explains how to mount a Slave in a control panel. Basically, there are two methods that can be used to mounted a Slave:

Screws or DIN Track. Some Slaves allow only one of these methods, while other Slaves, such as the Remote I/O Modules, mounted directly to a board. Others are mounted with special mounting brackets.

Required Parts The following parts are required to attach a Slave to a DIN track. These parts

are not required when attaching a Slave to a control panel with screws.

Part Model number Comments

35-mm DIN track

End Plate PFP-M Two are required for each Slave.

Direct Mounting with Screws

Refer to the Slave’s dimension diagram in SECTION 5 Slave Specifications and Operations for a template showing the mounting hole placement. Drill the

specified holes in the control panel and install the Slave with the right screws to the specified tightening torque as given below.

M4 screw: 0.6 to 0.98 N M5 screw (Front mounting): 0.6 to 1.18 N M5 screw (Rear mounting): 1.47 to 1.96 N

DIN Track Mounting

Clip the back of the Slave on to the DIN track by holding down the mounting pins on the back of the Slave with a screwdriver, pushing the bottom of the Slave onto the DIN track, and then rotating the Slave up and over the top of

PFP-50N 50 cm long PFP-100N 100 cm long PFP-100N2 100 cm long

⋅m

Connector Installation (Special Flat Cable Only) Section 3-2

the track. Attach End Plates at the sides of the Slave to prevent it from sliding on the track.

End Plate

!Caution Always secure the Slave on the DIN track by installing End Plates on each

side.

Mounting Direction

Any of the following six mounting directions can be used, unless specified in the Slave’s operation manual.

PWR

SRT1-ID16

13579111315

REMOTE TERMINAL

COMM

24VDC

02468101214

ERR

No.

0 151234567891011121314

02468101214

13579111315

PWR

COMM

ERR

No.

SRT1-ID16

REMOTE TERMINAL

24VDC

02468101214

13579111315

PWR

COMM

0 151 2 3 4 5 6 7 8 9 10 11 12 1314

ERR

0 151 2 3 4 5 6 7 8 9 10 11 12 1314

No.

SRT1-ID16

REMOTE TERMINAL

24VDC

0 151234567891011121314

No.

ERR

02468101214

24VDC

COMM

REMOTE TERMINAL

13579111315

SRT1-ID16

PWR

3-2 Connector Installation (Special Flat Cable Only)

The cable connections can be made with simple connectors if Special Flat Cable is used for the communications cable. There are three types of connectors: the Branch Connector (refer to 3-2-1 Branch Connector), Extension Connector (refer to 3-2-2 Extension Connector), and Connector Terminator (refer to 3-2-3 Connector Terminator).

!Caution Connectors cannot be reused once they have been attached to a cable. Be

sure that the connectors are positioned correctly before attaching them.

!Caution Wire the communications cable separately from power lines and high-voltage

lines to prevent any noise.

!Caution If Special Flat Cables are used for multiple CompoBus/S Systems, install the

cables at least 5 mm apart from other Special Flat Cables to prevent unstable operation due to mutual interference in the CompoBus/S Systems.

Vertical

Connector Installation (Special Flat Cable Only) Section 3-2

When Special Flat Cable cable is used, determine which wires are to be used, as shown in the following diagram.

Communications power supply + (BS+) Brown

Communications data high (BD H) Black

Communications data low (BD L) White

Communications power supply – (BS–) Blue

3-2-1 Branch Connector

Branch Connectors are used to make branches from the main line. A commercially available terminal block can also be used to make branches.

Connector Components The Branch Connector has three components: Cover 1, Cover 2, and the con-

tact block. The following diagram shows Cover 1.

Hinge

Cover number

The following diagram shows Cover 2.

Hinge

Cover number

The following diagram shows the contact block.

Cable stop

Surface number

Contacts

Note Cover 1 and Cover 2 can be distinguished by the cover number.

Installation Procedure Use the following procedure to attach a Branch Connector to the communica-

tions cable. The following procedure is an example to branch the main cable. The same

procedure will apply even if the main line does not need to be distinguished from the branch lines.

Connector Installation (Special Flat Cable Only) Section 3-2

1,2,3... 1. Make a perpendicular cut in the cable that will be used as the branch line

(the branch cable). The cable will not fit in the connector properly if the cut is not straight and perpendicular.

Correct Incorrect

2. Snap Cover 1 onto the branch cable. Make sure that the hook locks into place.

Cable

Hook

3. Line up the end of Cover 1 with the end of the branch cable.

0.5 mm max.

Cover number

4. Position Cover 1 onto Surface 1 of the contact block (the side with the cable stop). The pattern of the contact block is different on Surface 2, so Cover 1 cannot be fitted on Surface 2.

Cover 1

Branch cable

Contact block

5. Snap Cover 2 onto the cable being used as the main line (the main cable). Make sure that the hook locks into place. Cover 2 can still slide along the cable when locked.

Cable

Hook

6. Slide Cover 2 to the point on the main cable where you want the branch line.

Connector Installation (Special Flat Cable Only) Section 3-2

7. Position Cover 2 onto Surface 2 of the contact block (the side without the cable stop). Always align the cables so that the main cable’s colors match the branch cable’s colors.

Cover 1

Main cable Cover 2

Make sure that the colors of the cables match.

Main cable

Contact block

Branch cable

tInser until the end of the branch cable is visible.

!Caution The Units could be damaged if the branch cable’s colors do not match the

main cable’s colors.

8. The branch cable must be inserted all the way to the contact block’s cable stop.

9. Use a tool such as pliers to compress Cover 1 and Cover 2 together.

!Caution Always align the tool with the centers of the Covers to prevent any bending or

distortion when the connector is compressed. Uneven compression can prevent proper communications.

Connector Installation (Special Flat Cable Only) Section 3-2

10. Check the assembled connector from the side and make sure that the locks are completely engaged, as shown in the following diagram.

Before Compression After Compression

Locks

3-2-2 Extension Connector

Extension Connectors can be connected to any point of the communications cable regardless of whether it is a main or branch line or whether the main line needs to be distinguished from the branch lines.

Connector Components The Extension Connector has three components: Cover 1, Cover 2, and the

contact block. The following diagram shows Cover 1.

Hinge

Cover number

The following diagram shows Cover 2.

Hinge

Cover number

The following diagram shows the contact block.

Cable Stop

Surface number

Contacts

Note Cover 1 and Cover 2 can be distinguished by the cover number.

Connector Installation (Special Flat Cable Only) Section 3-2

Installation Procedure Use the following procedure to attach a Extension Connector to the communi-

cations cable.

1,2,3... 1. Make perpendicular cuts in the cables being connected. The cables will not

fit in the connector properly if the cuts are not straight and perpendicular.

Correct

Incorrect

2. Snap Cover 1 onto one of the cables. Make sure that the hook locks into place.

Cable

Hook

3. Line up the end of Cover 1 with the end of the cable.

0.5 mm max.

Cover number

4. Position Cover 1 onto Surface 1 of the contact block.

Cover 1

Cable

Contact block

Note The patterns of the contact blocks are different, so Cover 1 cannot be

fitted on Surface 2.

5. Snap Cover 2 onto the other cable. Make sure that the hook locks into place.

Cable

Hook

Connector Installation (Special Flat Cable Only) Section 3-2

6. Line up the end of Cover 2 with the end of the cable.

0.5 mm max.

Cover number

7. Position Cover 2 onto Surface 2 of the contact block. Always align the cables so that their colors match.

Cover 1

Main cable

Make sure that the colors of the cables match.

Insert until the end of the cable is visible.

Cable

Contact block

Cable

Cover 2

Cable

!Caution The Units could be damaged if the cables’ colors do not match.

8. Make sure that each cable has been inserted all the way to the contact block’s cable stop.

9. Use a tool such as pliers to compress Cover 1 and Cover 2 together.

!Caution Always align the tool with the centers of the Covers to prevent any bending or

distortion when the connector is compressed. Uneven compression can prevent proper communications.

Connector Installation (Special Flat Cable Only) Section 3-2

10. Check the assembled connector from the side and make sure that the locks are completely engaged, as shown in the following diagram.

Before Compression After Compression

Locks

3-2-3 Connector Terminator

When the system has a main line that needs to be distinguished from the branch lines, a Connector Terminator is connected at the end of main line opposite the Master. If the main line does not need to be distinguished from the branch lines, a Connector Terminator is connected the end of the communications cable farthest from the Master.

Connector Components The Connector Terminator has two components: Cover 1 and the contact

block. The following diagram shows Cover 1.

Hinge

Cover number

The following diagram shows the contact block.

Cable stop

Surface number

Contacts

Installation Procedure Use the following procedure to attach a Connector Terminator to the commu-

nications cable. The following procedure is an example to connect a Connector Terminator to

the main cable. The same procedure will apply even if the main line does not need to be distinguished from the branch lines.

Connector Installation (Special Flat Cable Only) Section 3-2

1,2,3... 1. Make a perpendicular cut in the cable being used as the main line (the

main cable). The cable will not fit in the connector properly if the cut is not straight and perpendicular.

Correct Incorrect

2. Snap Cover 1 onto the main cable. Make sure that the hook locks into place.

Cable

Hook

3. Line up the end of Cover 1 with the end of the main cable.

0.5 mm max.

Cover number

4. Position Cover 1 onto Surface 1 of the contact block (the side with the cable stop).

Cover 1

Main cable

Contact block

5. Make sure that the cable has been inserted all the way to the contact block’s cable stop.

6. Use a tool such as pliers to compress Cover 1 and the contact block together.

VCTF Cable Assembly Section 3-3

!Caution Always align the tool with the centers of the Covers and contact block to pre-

vent any bending or distortion when the connector is compressed. Uneven compression can prevent proper communications.

7. Check the assembled connector from the side and make sure that the locks are completely engaged, as shown in the following diagram.

Before Compression After Compression

Locks

3-3 VCTF Cable Assembly

This section explains how to assemble VCTF cable components. Commercially available 4-conductor VCTF cable and 2-conductor VCTF cable

can be used as communications cable in CompoBus/S Systems.

Note 1. Lay the communications cables separately from high-voltage lines and

power lines to prevent noise interference.

2. This section does not provide information on how to process shielded connectors (i.e., Round Water-resistant Connectors or Sensor I/O Connectors). Refer to the Sensor Catalog for information on how to process these connectors.

3. When using commercially available VCTF cable, determine which signal wires will be used for the BD H, BD L, BS+, and BS

4. When connecting 4-conductor VCTF cable to an assembly connector, check that the conductors and signals are connected in the following patterns.

Conductor

color

White BD H BS+ BS– BD L Red BS+ BS– BD L BD H Green BS– BD L BD H BS+ Black BD L BD H BS+ BS–

Pattern 1 Pattern 2 Pattern 3 Pattern 4

Signal combination

– signals.

3-3-1 Branching and Extending VCTF Cable

Use one of the following methods to branch or extend the VCTF cable.

• Commercially available relay terminal block (4-conductor/2-conductor VCTF cable branch or extension)

• T-joint or Combination Connector (4-conductor VCTF cable branch or extension)

Branching or Extension Using Relay Terminal Block

Note 1. Check that the signal wires are connected correctly. The Slave may be

Install crimp terminals on each signal wire of the VCTF cable, and connect the two-wire cable (for extension) or three-wire cable (for branching) to a commercially available relay terminal block. Use crimp terminals on the signal wires that match the terminal block being used.

damaged if the signal wires, particularly those for the power supply, are connected to signal wires other than those specified.

VCTF Cable Assembly Section 3-3

2. Tighten the terminal block screws to a tightening torque that meets the terminal block specifications.

Example: Branching 2-Conductor VCTF Cable

Use a commercially available relay terminal block (a terminal block where the terminals facing each other are connected internally), and branch the cables as shown in the following diagram.

Branching or Extension Using T-joint Combination Connectors

Note 1. Connectors with cables specially for CompoBus/S Systems are also avail-

Main line cable

Communications cable High side (BD H)

Shorting bar

Communications cable High side (BD H)

Communications cable Low side (BD L)

Branch line cable

Main line cable

Communications cable Low side (BD L)

Shorting bar

Relay terminal block

When 4-conductor VCTF cable is used in locations that require water resistance, use XS2R-D427-5 T-joint Connectors or XS2C-D4

@ or XS2G-D4@@

Combination Connectors that are specially designed for CompoBus/S Systems.

able.

2. For details on T-joint connectors, cable connectors, and connectors with cables, refer to

1-3-4 Connectors/Terminal Blocks.

Example: Branching 4-Conductor VCTF Cable Using T-joint

3-3-2 Installing Terminators

Use a Terminal-block Terminator or Shield Terminator as the terminator on the VCTF cable.

Note Refer to

nators, T-joints, and Connectors.

1-3-4 Connectors/Terminal Blocks for details on Terminal-block termi-

Cable

Socket (female)

T-joint

Cable

Plug (male)

Master/Slave Connecting Cables Section 3-4

Termina l-bl ock Termina tors

Note 1. Do not connect both signal wires to a single terminal.

Shield Terminators When using 4-conductor VCTF cable, terminators can be connected by con-

When the VCTF cable is connected to an SRS1-T Terminal-block Terminator, use crimp terminals on each of the BD H and BD L signal wires, and connect them to each terminal. The signal wires can be connected to any of the terminals.

2. When connecting the communications power supply using Special Flat Cable or 4-conductor VCTF cable, insulate the BD+ and BS– power supply cables.

Tighten the terminal screws to the specified tightening torque (0.3 to

⋅m).

0.5 N

3. When connecting Terminal-block Terminators to VCTF cables, use the same crimp terminals as those used to connect the communications cables to the Slaves. (Refer to 3-4 Master/Slave Connecting Cables.)

necting an SRS2-1 Shield Terminator to the T-joint.

Note The SRS2-1 Shield Connector has a male plug. Connect it to the female

socket connector of the T-joint.

3-4 Master/Slave Connecting Cables

This section describes the methods used for connecting communications cables to each device and installing connectors on the Connector Terminal and Sensor Terminal cables.

3-4-1 Crimp Terminal Installation

Attach crimp terminals to the ends of the communications cable when connecting the cable to a Master, Slave, Terminal-block Terminator, or commercially available terminal block.

!Caution Do not connect bare signal wires to the terminals since the wires could short

and damage the Unit to which they are connected.

Note Do not strip too much insulation from the wires when preparing the cable for

the crimp terminals. Cover the shaft of the terminal connector and the end of the wire with electrical tape or heat-shrinking tube.

Master or Slave When connecting communications cable (VCTF cable or Special Flat Cable)

to a Master or Slave, attach an M3 crimp terminal like those shown below to each signal wire.

M3 Terminals for the Master Unit (Except CJ Series)

6.2 mm max. 6.2 mm max.

Recommended terminal Comment

Nippon Crimp Terminal 1.25-N3A Forked terminal Molex Y1.25-3.5L Forked terminal

Note Refer to

crimp terminals used for connecting CJ-series Master Units.

4-3-3 Wiring and Installing Communications Cables for details on

Master/Slave Connecting Cables Section 3-4

M3 Terminals for Slave Units

6.0 mm max. 6.0 mm max.

Recommended terminal (standard JIS part numbers)

RAV1.25-3 RAP1.25-3

3-4-2 Master and Slave Terminal Connections

When connecting the communications cable to the terminals of a Master node or those of a Slave node, connect the BD H signal wire to the BD H terminal and the BD L signal wire to the BD L terminal.

When supplying power to the Slave’s communications power supply, connect the BS+ wire to the BS+ terminal and the BS– wire to the BS– terminal. The following diagram shows the multi-drop connection method.

Connects to the Slave's BD L terminal.

Main line cable from the Master or previous Slave

Communications cable Low (BD L)

!Caution Do not mix up the wires when connecting the communications cable. In partic-

ular, the Slave might be damaged if the power wires are connected to the wrong terminals. When power is being supplied through Special Flat Cable but some Slaves are being supplied from another source, always insulate the BS+ and BS– wires. Tighten the terminal screws to the specified tightening torque (0.3 to 0.5 N

3-4-3 Cable Connector Wiring and Assembly

When using the Slaves shown in the following table, attach the special OMRON cable connectors to the cables of the sensors and other external devices.

Slave type Model

Connector Terminals with Transistor Inputs SRT2-VID08S (-1) Connector Terminals with Transistor Outputs SRT2-VOD08S (-1) Sensor Terminals with Connector Outputs SRT@-OD08S Sensor Terminals SRT@-ID08S

Connects to the Slave's BD H terminal.

Main line cable to the next Slave or terminator

Communications cable High (BD H)

SRT@-ND08S

⋅m).

Master/Slave Connecting Cables Section 3-4

Assembling the Cable Connectors

Use the following procedure to install the sensor’s cable into the cable connector that plugs into the Sensor Terminal. The following diagram shows the two parts of the cable connector: the connector plug and cover.

Cover

Connector plug

Cable Connector Model Numbers

There are two models of cable connectors available for different sized cable wires, as shown in the following table.

Model Marking Compatible cable wire size

XS8A-0441 XS8-1

XS8A-0442 XS8-2

0.3 to 0.5 mm

0.14 to 0.2 mm

(cross-sectional area)

Make sure that the sensor cable’s wire size is compatible the cable connector being used. The cable connector’s marking is found on the connector plug, as shown in the following diagram.

Marking

Sensor Cable Preparation

Sensor cables are usually stripped to semi-strip or strip specifications, but OMRON cable connectors cannot be attached when the cable is stripped in these ways.

Semi-stripped Stripped

To prepare the cable for an OMRON cable connector, cut the tip and strip the cable insulation but not the wire insulation, as shown in the following diagram.

20 mm min.

Inserting Wires into the Cover

When connecting the Sensor, match the terminal numbers marked on the connector cover with the colors of the sensor wires as shown in the following table.

Sensor terminal Sensor type Terminal number

1234

SRT2-VID08S 3-wire sensor

(without self-diagnostic output function)

2-wire sensor (without self-diagnostic output function)

Black (white) (Connect to 1 or

2) Brown (white)

(Connect to 1 or

Brown (red)

--- Blue

Blue (black)

(black)

Master/Slave Connecting Cables Section 3-4

Sensor terminal Sensor type Terminal number

1234

SRT2-VID08S-1 3-wire sensor

(without self-diagnostic output function)

2-wire sensor (without self-diagnostic output function)

Sensor terminal Sensor type Terminal number

SRT@-ID08S 3-wire sensor

(without self-diagnostic output function)

2-wire sensor (without self-diagnostic output function)

SRT@-ND08S Sensor with teaching func-

tion or external diagnostic function

Sensor with bank switching function

Black (white) (Connect to 1 or

2) Blue (black)

(Connect to 1 or

1234

Black (white)

Brown (white)

Black (white)

Black Purple Brown Blue

--- Brown

--- --- Blue

Pink (gray)

Brown (red)

Brown (white)

(red)

Brown (red)

Blue (black)

---

Blue (black)

(black)

Blue (black)

Note In accordance with the changes in the standards for photoelectric sensors

and proximity sensors, wire colors have been changed. Colors in parentheses are the old wire colors.

When connecting an output device, match the terminal numbers marked on the connector cover with the signal wires of the output device as shown in the following table.

Sensor terminal Terminal number

1234

SRT2-VOD08S Yes (Connect to 1 or 2) Yes --SRT2-VOID08S-1 Yes (Connect to 1 or 2) --- Yes SRT@-OD08S Yes --- Yes (Connect to 3 or 4)

Insert the wire all the way into the cover’s hole until it touches.

Connector Assembly

Use the following procedure to assemble the cable connector.

1,2,3... 1. Check the wire colors and make sure that the sensor’s wires are aligned

with the correct terminal numbers. (The cover is semi-transparent, so the wire colors will be visible through the cover.)

2. Fit the cover (with wires inserted) into the connector plug, as shown in the following diagram.

3. Use a tool such as pliers to press the cover all the way into the connector plug. Always align the tool with the center of the cover so it does not tilt,

Operations Checklist Section 3-5

and press the cover straight into the connector plug. There should not be any gap between the cover and plug.

Inserting and Removing Cable Connectors

The sensor cable can be inserted into the Sensor Terminal once the cable connector has been attached.

Inserting the Cable Connector

Position the cable connector so that Terminal 1 faces you and push the connector into the Sensor Terminal until it clicks into place.

Removing the Cable Connector

To remove the cable connector, first pull out the lock lever and then remove the cable connector, as shown in the following diagram.

3-5 Operations Checklist

Go through the items in the following checklist before turning ON the Units in the CompoBus/S System. All of the checks should be answered “Yes.”

Lock lever

CS-series, C200HX/C200HG/ C200HE-(Z)E, and C200HS Master Units

Item Check Answer

Switch settings Has the Master’s Special I/O Unit unit number been set?

(Refer to 4-1-2 Switch Settings for details.) Has the node number been set with pin 1 of the DIP switch?

(Refer to 4-1-2 Switch Settings for details.) Has the communications mode been set with pin 2 of the DIP switch?

(Refer to 4-1-2 Switch Settings for details.) Are pins 3 and 4 of the DIP switch all set to OFF? Yes No

Ye s N o

Operations Checklist Section 3-5

Item Check Answer

CS-series Master Units

CJ-series Master Units

CQM1 Master Units

Slaves Switch settings Has the node number been set?

Switch settings Has the Master’s Special I/O Unit number been set?

(Refer to 4-2-2 Switch Settings for details.) Has the node number been set with pin 1 of the DIP switch?

(Refer to 4-2-2 Switch Settings for details.) Has the communications mode been set with pin 2 of the DIP switch?

(Refer to 4-2-2 Switch Settings for details.) Has the communications stop mode been set with pin 3 of the DIP

switch? (Refer to 4-2-2 Switch Settings for details.)

Has the Slave registration function been set with pin 4 of the DIP switch? (If the Slave registration function is used, the CPU Unit’s DM Area must also be set.)

(Refer to 4-2-2 Switch Settings for details.)

Switch settings Has the Master’s Special I/O Unit number been set?

(Refer to 4-3-2 Switch Settings for details.) Has the node number been set with pin 1 of the DIP switch?

(Refer to 4-3-2 Switch Settings for details.) Has the communications mode been set with pin 2 of the DIP switch?

(Refer to 4-3-2 Switch Settings for details.) Has the communications stop mode been set with pin 3 of the DIP

switch? (Refer to 4-3-2 Switch Settings for details.)

Has the Slave registration function been set with pin 4 of the DIP switch? (If the Slave registration function is used, the CPU Unit’s DM Area must also be set.)

(Refer to 4-3-2 Switch Settings for details.)

Switch settings Has the PLC word allocation (DIP switch pins 1 and 2) been set?

(Refer to 4-4-2 Switch Settings for details.) Has the number of points/node number setting (DIP switch pin 3)

been set? (Refer to 4-4-2 Switch Settings for details.) Has the communications mode been set with pin 4 of the DIP switch?

(Refer to 4-4-2 Switch Settings for details.) Are pins 5 and 6 of the DIP switch all set to OFF? Yes No

(Refer to SECTION 5 Slave Specifications and Operations for details.)

Has the communications mode been set? (Refer to SECTION 5 Slave Specifications and Operations for details.)

Is the Slave’s node number unique (not allocated to another Slave)? Yes No Have other settings besides the CompoBus/S settings, such as the

“hold/clear outputs for communications error” setting, been set? (Refer to SECTION 5 Slave Specifications and Operations for details.)

Ye s N o

Operations Checklist Section 3-5

Item Check Answer

Wiring Master Is the Master Unit connected at the end of the main line when the

Slave Are the cables connected to the Slaves correctly?

Terminator Has just one terminator been connected at the end of the main line

Main line length When the main line needs to be distinguished from the branch lines,

Branch line lengths

Total branch line length

Number of Slaves Is the number of Slaves within the limit set on the Master?

Cable Has just one kind of cable (Special Flat Cable or VCTF cable) been

Noise Is the wiring separated from any power/high-voltage lines? Yes No

Cable 2-conductor VCTF

cable 4-conductor VCTF

cable

Special Flat Cable Has the Special Flat Cable power supply been used to supply power

Power supply 4-conductor VCTF

Cable, Special Flat Cable

2-conductor VCFF cable

main line needs to be distinguished from the branch lines.? Is the cable connected to the Master correctly?

(Refer to 3-4 Master/Slave Connecting Cables for details.) With CQM1 Masters, has the alarm output terminal been wired?

(Refer to 6-4-2 Error Detection with the Alarm Output (CQM1 Only) for details.)

(Refer to 3-4 Master/Slave Connecting Cables for details.) Is there just one Slave connected to each branch line when the main

line needs to be distinguished from the branch lines? (Refer to 2-2-1 Main Line/Branch Line Connections for details.)

opposite the Master? (Refer to 2-2-3 Terminator Connection for details.)

is the length of the main line within specifications? (Refer to 2-2-2 Maximum Cable Length for details.)

When the main line needs to be distinguished from the branch lines, is the length of the each branch line within specifications? (Refer to 2-2-2 Maximum Cable Length for details.)

When the main line needs to be distinguished from the branch lines, is the total length of the branch lines within specifications? (Refer to 2-2-2 Maximum Cable Length for details.)

(Refer to SECTION 4 Master Unit Specifications and Operations for details.)

When using 4-conductor VCTF cable or Special Flat Cable, are the main line length and total branch line length of the system with a maximum of 16 Slaves within specifications? (Refer to 2-2-2 Maximum Cable Length for details.)

used in the CompoBus/S System? If Special Flat Cables are used for multiple CompoBus/S Systems,

install the cables at least 5 mm apart from other Special Flat Cables.

Has 2-conductor (0.75 mm

Has 4-conductor (0.75mm2) cable been used? Has the 4-conductor cable power supply been used to supply power

to the Slaves only (not for other purposes, such as I/O power supply)?

Does the power supply configuration match the plan? (Refer to 2-3 Supplying Power to the Slaves for details.)

With local and dual power supply Slaves, is there a separate power supply for the I/O? (Refer to 2-3 Supplying Power to the Slaves for details.)

Have the Slaves been wired correctly? (The Units can be damaged if the power supply is connected to the communications terminals.) (Refer to 2-3 Supplying Power to the Slaves for details.)

) cable been used?

Ye s N o

SECTION 4

Master Unit Specifications and Operations

This section provides information on the specifications and functions of each Master Unit, including details on switch settings and allocation of Slave I/O.

4-1 C200HW-SRM21-V1 Master Unit for CS-series,

C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs . . . . . . . . . . . . . . . . . 74

4-1-1 Specifications and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

4-1-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

4-1-3 I/O Allocations in CS-series, C200HX/C200HG/C200HE-(Z)E,

4-1-4 Data Areas in the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

4-2 CS1W-SRM21 Master Unit for CS-series PLCs . . . . . . . . . . . . . . . . . . . . . . 88

4-2-1 Specifications and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

4-2-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

4-2-3 I/O Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

4-2-4 Slave Registration Function and Communications Stop Mode . . . . 98

4-2-5 Allocations for Master Unit in PLC . . . . . . . . . . . . . . . . . . . . . . . . . 103

4-3 CJ1W-SRM21 Master Unit for CJ-series PLCs . . . . . . . . . . . . . . . . . . . . . . . 104

4-3-1 Specifications and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

4-3-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

4-3-3 Wiring and Installing Communications Cables . . . . . . . . . . . . . . . . 109

4-3-4 I/O Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

4-3-5 Slave Registration Function and Communications Stop Mode . . . . 120

4-3-6 Allocations for Master Unit in PLC . . . . . . . . . . . . . . . . . . . . . . . . . 125

4-4 CQM1-SRM21-V1 Master Unit for CQM1 PLCs . . . . . . . . . . . . . . . . . . . . . 126

4-4-1 Specifications and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

4-4-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

4-4-3 I/O Allocations in CQM1 PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

4-5 SRM1-C0@-V2 Master Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

4-5-1 Specifications and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

4-5-2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

4-6 CPM2C-S Series CPM2C-S@@@C (-DRT). . . . . . . . . . . . . . . . . . . . . . . . . . 140

4-6-1 Specifications and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

4-6-2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

and C200HS PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCsSection 4-1

4-1 C200HW-SRM21-V1 Master Unit for CS-series,

C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs

4-1-1 Specifications and Part Names

CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs use the C200HW-SRM21-V1 Master Unit.

Specifications General Specifications

General specifications conform to those of the CS-series, C200HX/C200HG/ C200HE-(Z)E, and C200HS PLCs.

Performance Specifications

Item Specifications

Model C200HW-SRM21-V1 Unit classification Special I/O Unit Internal current con-

sumption Weight 200 g max. Max. number of

Masters Master Unit mount-

ing location Max. number of I/O

points per Master Number of points per

node number Number of usable

node numbers per Master

5 V DC, 150 mA max.

10 or 16 Units (See note.) 5 or 8 Units (See note.)

Can be mounted on the CPU Backplane or Expansion I/O Backplane. Can’t be mounted on a SYSMAC BUS Slave (RT).

128 points (64 inputs/64 outputs)

8-point mode

IN0 to IN7 and OUT0 to OUT7 (up to 16 Units can be connected)

256 points (128 inputs/128 outputs)

IN0 to IN15 and OUT0 to OUT15 (up to 32 Units can be connected)

Note The following table shows the maximum number of Master Units that can be

connected and the node number settings for each Master according to the CPU Unit to which it is mounted.

CPU Unit Number of connectable Master Units

C200HX-CPU3@/4@-(Z)E C200HG-CPU3@/4@-(Z)E C200HE, and C200HS

C200HX-CPU5@/6@/8@-(Z)E C200HG-CPU5@/6@-(Z)E, and CS

IN0 to IN7, OUT0 to

OUT7

10 Units 5 Units

16 Units 8 Units

IN0 to IN15, OUT0 to

OUT15

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs Section 4-1

Dimensions The following diagram shows the dimensions of the C200HW-SRM21-V1

Master Unit. All dimensions are in mm.

Note Refer to the CS-series Operation Manual, C200HX/C200HG/C200HE-(Z)E

Operation Manual, or C200HS Operation Manual for details on the dimen-

sions when the Master Unit is installed on the PLC’s Backplane.

Master Unit Components The following diagram shows the main components of the C200HW-SRM21-

V1 Master Unit. The functions of these components are described below.

Indicators

Indicates the operating status of the Master Unit and the status of communications with the Slaves.

Rotary Switch

This switch sets the Master's one-digit hexadecimal unit number.

DIP Switch

These pins have the following functions: Pin 1: Usable node number setting Pin 2: Communications mode Pins 3 and 4: Reserved (Always OFF.)

Communications Terminals

Connect the Slaves' transmission cable to these terminals.

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCsSection 4-1

Indicators

The following table shows the meaning of the indicators.

Indicator Status Meaning

RUN (green) ON The Unit is operating normally.

OFF Indicates one of the following conditions:

SD (yellow) ON Data is being transmitted.

OFF Data is not being transmitted.

RD (yellow) ON Data is being received.

OFF Data is not being received.

ERC (red) ON A Slave has been withdrawn from communications.

OFF The Slaves are communicating normally.

IN/OUT (red) ON An error has occurred with an Output Slave.

OFF An error has occurred with an Input Slave or all Slaves

8421 (red) ON/OFF These indicators represent the four-digit binary slave

The power is OFF, there is an I/O setting error, the CPU Unit is in standby status, or there is a unit number setting error.

(Communications error)

are operating normally.

number of the Slave in which the error occurred.

4-1-2 Switch Settings

Rotary Switch The Master Unit’s unit number (Special I/O Unit’s unit number) is set with the

rotary switch on the front of the Unit.

MACHINE No.

The highest possible unit number depends on the PLC model and the usable node number setting set with pin 1 of the DIP switch.

CPU Unit Number of usable Master Units Usable node number setting

CS1 16

(allocated words for 1 Special I/O Unit (i.e., 10 words))

8 (allocated words for 2 Special I/O Units (i.e., 20 words))

C200HX-CPU3@-(Z)E /-CPU4@-(Z)E, C200HGCPU3@-(Z)E /-CPU4@-(Z)E, All C200HE/HS PLCs

C200HX/HG-CPU5@-(Z)E/ CPU6@-(Z)E/CPU8@-(Z)E

10 (allocated words for 1 Special I/O Unit (i.e., 10 words))

5 (allocated words for 2 Special I/O Units (i.e., 20 words))

16 (allocated words for 1 Special I/O Unit (i.e., 10 words))

8 (allocated words for 2 Special I/O Units (i.e., 20 words))

(with DIP switch)

IN0 to IN7 and OUT0 to OUT7 0 to F

IN0 to IN15 and OUT0 to OUT15 0 to E

IN0 to IN7 and OUT0 to OUT7 0 to 9

IN0 to IN15 and OUT0 to OUT15 0 to 8

IN0 to IN7 and OUT0 to OUT7 0 to 9, A to F

IN0 to IN15 and OUT0 to OUT15 0 to 8, A to E

Unit number

setting range

Any unit number in the ranges above can be set, as long as the same unit number has not been set on another Special I/O Unit mounted in the PLC. Set the unit number with a small flat-blade screwdriver, being careful not to damage the switch.

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs Section 4-1

!Caution Always turn OFF the PLC before changing the unit number setting.

• The Master Unit is shipped with the unit number set to 0.

• The unit number setting determines which words in the PLC’s Special I/O Unit Area are allocated to the Master Unit. Refer to 4-1-3 I/O Allocations in CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs for details.

• The Master Unit is allocated twice as many words in the PLC’s Special I/O Unit Area (the words for unit number set on the Master and the next unit number) when the usable node number setting is set to IN0 through IN15 and OUT0 through OUT15. In this case, neither the Master’s unit number nor the next unit number can be used on another Special I/O Unit mounted in the PLC.

• If the same unit number is used for the Master and another Special I/O Unit, an I/O UNIT OVER error will occur in the PLC and it will not be possible to start up the CompoBus/S System.

• For the following PLCs, unit numbers A to F cannot be set: C200HE, C200HS, C200HG-CPU33-(Z)E, C200HG-CPU43-(Z)E, C200HX-CPU34-(Z)E, and C200HX-CPU44-(Z)E

DIP Switch The DIP switch is used to set the range of usable node numbers of Slaves and

the communications mode.

Reserved (Always OFF.)

Communications mode Usable node numbers

Note 1. Always turn the PLC OFF before changing the settings.

2. Leave pins 3 and 4 set to OFF. Set pin 1 of the DIP switch as shown in the following table.

Pin 1 setting Usable node number setting

OFF IN0 to IN7 and OUT0 to OUT7 ON IN0 to IN15 and OUT0 to OUT15

Set pin 2 of the DIP switch as shown in the following table.

Pin 2

setting

OFF High-speed Com-

ON Long-distance

Communications

mode setting

munications Mode

Communications Mode

Communications

distance

100 m max. 750 kbps 0.5 ms or 0.8 ms

500 m max. 93.75 kbps 4.0 ms or 6.0 ms

Communications

baud rate

Communications

cycle time

Note 1. Make sure that the communications mode of the Master Unit matches that

of all Slaves. If the CompoBus/S System contains a Slave whose communications mode does not agree with that of the Master Unit, the COMM indicator on that Slave will not light, and normal communications with that Slave will not be possible. Other Slaves will not be adversely affected. (In such cases, the COMM indicator on the Master Unit will light normally.) For information relating to the states of the Master Unit indicator, refer to

1 Indicators

6-5-

2. When using an existing Master Unit model without V1, pin 2 must be set to OFF. Otherwise, normal communications may not be possible.

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCsSection 4-1

• The Master Unit is factory-set to OFF (for IN0 to IN7 and OUT0 to OUT7).

• The maximum number of Slaves setting affects both the total number of words allocated and the Slaves’ communication cycle. Refer to 4-1-3 I/O

Allocations in CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs for details.

• The Master Unit is allocated twice as many words in the PLC’s Special I/O Unit Area (the words for unit number set on the Master and the next unit number) when the usable node number setting is set to IN0 to IN15 and OUT0 to OUT15. In this case, neither the Master’s unit number nor the next unit number can be used on another Special I/O Unit mounted in the PLC.

• Pin 2 is factory-set to OFF (High-speed Communications Mode).

• The setting of pin 2 determines the communications distance, baud rate, and cycle time as shown in the above table.

4-1-3 I/O Allocations in CS-series, C200HX/C200HG/C200HE-(Z)E, and

C200HS PLCs

In CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs, the Master Unit is treated as a Special I/O Unit, so the Slave’s I/O data and status information are stored in the sections of the PLC’s data areas which are allocated to Special I/O Units.

Allocations and Master Unit Settings

The following settings affect I/O allocations to Slaves in the Master Units used with CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs.

Setting at Master

Unit

Usable node number settings (DIP switch pin 1)

Unit number setting (rotary switch)

Status Affect on allocation

OFF Uses 10 words (for one unit number) from the Special

I/O Unit Area as follows: Output: 4 words, input: 4 words, status: 2 words.

ON Uses 20 words (for two unit numbers) from the Special

I/O Unit Area as follows: Output: 8 words, input: 8 words, status: 4 words.

n First word of the area used in the Special I/O Unit Area

CS Series 2000 + n × 10

C200HX/HG/HE/HS For 0 ≤ n ≤ 9: 100 + n × 10 For 10 ≤ n ≤ 15 (A to F): 400 + (n − 10) × 10

Slave Allocations Slaves are allocated words in the Special I/O Unit Area as described next. In

CompoBus/S Systems, node numbers of Input Slaves and Output Slaves are treated separately so the same node number can be allocated.

I/O Allocations when Pin 1 Is OFF

When pin 1 is OFF and node addresses IN0 to IN7 and OUT0 to OUT7 (up to 64 inputs/64 outputs) are used, words are allocated to the Slaves for each node number as shown in the following diagrams.

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs Section 4-1

CS-series PLCs

First word

CIO 2000 CIO 2010 CIO 2020 CIO 2030 CIO 2040 CIO 2050 CIO 2060 CIO 2070 CIO 2080 CIO 2090 CIO 2100 CIO 2110

CIO 2120 CIO 2130

CIO 2140 CIO 2150

Unit number 0 Unit number 1

Unit number 2 Unit number 3 Unit number 4 Unit number 5 Unit number 6 Unit number 7 Unit number 8 Unit number 9 Unit number A Unit number B Unit number C Unit number D

Unit number E Unit number F

First word

First word + 1

First word + 2

First word + 3

First word + 4

First word + 5

First word + 6

First word + 7

First word + 8

First word + 9

Slave allocations in Special I/O Unit Area

Output Slave 1

Output Slave 3

Output Slave 5

Output Slave 7

Input Slave 1

Input Slave 3

Input Slave 5

Input Slave 7

Output Slave Error Flags

#7 #0 #7 #0

Input Slave Error Flags

#7 #0 #7 #0

Output Slave 0

Output Slave 2

Output Slave 4

Output Slave 6

Input Slave 0

Input Slave 2

Input Slave 4

Input Slave 6

Active Output Slave Flags

Active Input Slave Flags

Bits

1234567089101112131415

Outputs

Inputs

Status

C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs

C200HXCPU5@/CPU6@/CPU8@-(Z)E,

C200HGCPU5@/CPU6@-(Z)E

First word

IR 100

IR 110 IR 120

IR 130 IR 140 IR 150

IR 160

IR 170 IR 180 IR 190

IR 400 IR 410

IR 420

IR 430

IR 440 IR 450

Unit number 0

Slave allocations in Special I/O Unit Area

Unit number 1

Unit number 2

Unit number 3 Unit number 4

Unit number 5

Unit number 6

Unit number 7 Unit number 8

Unit number 9

Unit number A

Unit number B

Unit number C Unit number D

First w ord

First word + 1

First word + 2

First word + 3

First word + 4

First word + 5

First word + 6

First word + 7

First word + 8

First word + 9

Output Slave 1

Output Slave 3

Output Slave 5

Output Slave 7

Input Slave 1

Input Slave 3

Input Slave 5

Input Slave 7 Output Slave Error Flags

#7 #0 #7 #0

Input Slave Error Flags

#7 #0 #7 #0

Output Slave 0

Output Slave 2

Output Slave 4

Output Slave 6

Input Slave 0

Input Slave 2

Input Slave 4

Input Slave 6 Active Output Slave Flags

Active Input Slave Flags

Unit number E

Unit number F

I/O Allocations when Pin 1 is ON

When pin 1 is ON and node addresses IN0 to IN15 and OUT0 to OUT15 (128 inputs/128 outputs max) are used, words are allocated to the Slaves for each node number as shown in the following diagrams.

Bits

Outputs

Inputs

Status

Omron SRT2, CQM1-SRM21-V1, SRT1, CS1W-SRM21, COMPOBUS-S OPERATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice:

About this Manual:

WARRANTY

PRECAUTIONS

1 Intended Audience

2 General Precautions

3 Safety Precautions

4 Operating Environment Precautions

5 Application Precautions

6 Conformance to EC Directives

1-1 System Overview and Features

1-2 CompoBus/S System Configuration

1-3 Compatible Devices

1-4 Startup Procedure

2-1 Communications Specifications

2-2 System Configuration

2-3 Supplying Power to the Slaves

2-4 System Configuration Using Water-resistant Terminals

2-5 I/O Response Time Characteristics

3-1 Mounting

3-2 Connector Installation (Special Flat Cable Only)

3-3 VCTF Cable Assembly

3-4 Master/Slave Connecting Cables

3-5 Operations Checklist

C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCsSection 4-1