Omron CJ series, CS series, ONE NSJ series, CP series PROGRAMMING MANUAL

Cat. No. W342-E1-14

SYSMAC CS/CJ/CP Series SYSMAC One NSJ Series

Communications Commands

REFERENCE MANUAL

SYSMAC CS/CJ/CP Series

CS1G/H-CPU@@H CS1G/H-CPU@@-EV1 CS1D-CPU@@H CS1D-CPU@@S CS1W-SCB@@-V1 CS1W-SCU@@-V1 CJ2H-CPU6@-EIP CJ2H-CPU6@

CJ1H-CPU@@H-R

CJ1G/H-CPU@@H CJ1G-CPU@@P CJ1G-CPU@@ CJ1M-CPU@@ CJ1W-SCU@@-V1 CP1H-X@@@@-@ CP1H-XA@@@@-@ CP1H-Y@@@@-@ CP1L-M/L@@@-@

CP1E-E@@D@-@ CP1E-N@@D@-@

SYSMAC One NSJ Series

NSJ@-@@@@(B)-G5D NSJ@-@@@@(B)-M3D

Communications Commands

Reference Manual

Revised July 2009

Notice:

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. “PC” is used, however, in some Programming Device displays to mean Programmable Controller.

Visual Aids

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or 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.

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

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.

CJ Series

CJ2 CPU Units

CJ2H-CPU6@-EIP CJ2H-CPU6@

CJ1-H CPU Units

CJ1H-CPU@@H-R

CJ1H-CPU@@H

CJ1G-CPU@@H

CJ1G-CPU@@P

(Loop CPU Units)

CJ1M CPU Units

CJ1M-CPU@@

CJ1 CPU Units

CJ1G-CPU@@

NSJ Series

NSJ Controllers

NSJ5-TQ@@(B)-G5D

NSJ5-SQ@@(B)-G5D

NSJ8-TV@@(B)-G5D

NSJ10-TV@@(B)-G5D

NSJ12-TS@@(B)-G5D

NSJ Controllers

NSJ5-TQ@@(B)-M3D

NSJ5-SQ@@(B)-M3D

NSJ8-TV@@(B)-M3D

CS Series

CS1-H CPU Units

CS1H-CPU@@H

CS1G-CPU@@H

CS1D CPU Units

CS1D CPU Units for Duplex Systems

CS1D-CPU@@H

CS1D CPU Units for Simplex Systems

CS1D-CPU@@S

CS1D Process-control CPU Units

CS1D-CPU@@P

CS1 CPU Units

CS1H-CPU@@(-V)

CS1G-CPU@@ (-V)

CP Series

CP1E CPU Units

CP1E-E@@D@-@*2 CP1E-N@@D@-@*3

CP1L CPU Units

CP1L-L @@D@-@ CP1L-M@@D@-@

CP1H CPU Units

CP1H-X@@D@-@ CP1H-XA@@D@-@ CP1H-Y@@DT-D

CP-series Expansion I/O Units

CP-series Expansion Units

CJ-series Basic I/O Units

CJ-series Special I/O Units

CJ-series CPU Bus Units

CJ-series Power Supply Units

NSJ-series Expansion Units

CS-series Basic I/O Units

CS-series Special I/O Units

CS-series CPU Bus Units

CS-series Power Supply Units

Note: A special Power Supply Unit

must be used for CS1D CPU Units.

CJ-series Special I/O Units*1

CJ-series CPU Bus Units*1

*1 Can only be used with the CP1H CPU unit. *2 Indicated as "E-type" in some parts of this manual. *3 Indicated as "N-type" in some parts of this manual.

TABLE OF CONTENTS

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

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

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

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

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xix

SECTION 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Overview of Communications Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 C-mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1-3 FINS Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SECTION 2

Overview of C-mode Commands . . . . . . . . . . . . . . . . . . . . . 7

2-1 C-mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2-2 Command/Response Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2-3 Application Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-4 Precautions when Reusing Programs from Earlier Models . . . . . . . . . . . . . . . . . . . . . . . . . 15

SECTION 3

Overview of FINS Commands. . . . . . . . . . . . . . . . . . . . . . . . 27

3-1 FINS Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3-2 Using FINS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3-3 FINS Command and Response Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3-4 Settings for Sending FINS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3-5 FINS Commands with Host Link Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3-6 Serial Gateway Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-7 Communications Frames. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

SECTION 4

C-mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

4-1 C-mode Command List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

4-2 End Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4-3 C-mode Command Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

SECTION 5

FINS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

5-1 Command Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

5-2 Designating Command Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

5-3 FINS Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

vii

viii

About this Manual:

This manual describes the C-series (Host Link) and FINS communications commands used with CS/ CJ-series and CP-series Programmable Controllers (PLCs) and NSJ Controllers, and includes the sections described below.

Please read this manual and all related manuals listed in the following table and be sure you understand information provided before attempting to design or implement communications for CS/CJ-series or CP-series Programmable Controllers (PLCs) or NSJ Controllers.

Name Cat. No. Contents

SYSMAC CS/CJ/CP/NSJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1D-CPU@@H, CS1D-CPU@@S, CJ1H-CPU@@H-R, CJ1G-CPU@@, CJ1M-CPU@@, CJ1G-CPU@@P, CJ1G/H-CPU@@H, CJ2H-CPU6@-EIP, CJ2H-CPU6@, CS1W-SCU@@-V1, CS1W-SCB@@-V1, CJ1W-SCU@@-V1, CP1H-X@@@@-@, CP1H-XA@@@@-@, CP1H-Y@@@@-@, CP1L-M/L@@@-@, CP1E-E@@D@-@, CP1E-N@@D@-@, NSJ@-@@@@(B)-G5D, NSJ@-@@@@(B)-M3D Communications Commands Reference Manual

SYSMAC CS/CJ/NSJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ2H-CPU6@-EIP, CJ2HCPU6@, CJ1H-CPU@@H-R, CJ1G-CPU@@, CJ1MCPU@@, CJ1G-CPU@@P, C J 1G /H -C P U @@H, NSJ@- @@@@(B)-G5D, NSJ@-@@@@(B)-M3D Programmable Controllers Instructions Reference Manual

SYSMAC CS/CJ/NSJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1D-CPU@@H, CS1D-CPU@@S, CJ1G-CPU@@, CJ1M-CPU@@, CJ1G-CPU@@ NSJ@-@@@@(B)Programmable Controllers Programming Manual

SYSMAC CS Series CS1D-CPU@@H CPU Units CS1D-CPU@@S CPU Units CS1D-DPL01 Duplex Unit CS1D-PA207R Power Supply Unit Duplex System Operation Manual

SYSMAC CS Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H Programmable Controllers Operation Manual

SYSMAC CJ Series CJ1G-CPU@@, CJ1M-CPU@@, CJ1G-CPU@@P, CJ 1G / H CPU@@H Programmable Controllers Operation Manual

SYSMAC CJ Series CJ1M-CPU@@ Built-in I/O Operation Manual

G5D, NSJ@-@@@@(B)-M3D

P, CJ 1G /H - C P U @@H,

W342 Describes the communications commands used

with CS-series, CJ-series, and CP-series PLCs and NSJ Controllers. (This manual)

W474 Describes the ladder diagram programming

instructions supported by CS/CJ-series PLCs and NSJ Controllers.

W394 This manual describes programming and other

methods to use the functions of the CS/CJ-series PLCs and NSJ Controllers.

W405 Provides an outline of and describes the design,

installation, maintenance, and other basic operations for a Duplex System based on CS1D CPU Units.

W339 Provides an outlines of and describes the design,

installation, maintenance, and other basic operations for the CS-series PLCs.

W393 Provides an outlines of and describes the design,

installation, maintenance, and other basic operations for the CJ-series PLCs.

W395 Describes the functions of the built-in I/O for

CJ1M CPU Units.

Name Cat. No. Contents

SYSMAC CJ Series CJ2H-CPU6@-EIP, CJ2H-CPU6@ CPU Unit Software User’s Manual

SYSMAC CJ Series CJ2H-CPU6@-EIP, CJ2H-CPU6@ CPU Unit Hardware User’s Manual

SYSMAC CS/CJ Series CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU6@-EIP EtherNet/IP Units Operation Manual

SYSMAC One NSJ Series NSJ5-TQ@@(B)-G5D, NSJ5-SQ@@(B)-G5D, NSJ8TV@@(B)-G5D, NSJ10-TV@@(B)-G5D, NSJ12-TS@@(B)- G5D, NSJ5-TQ@@(B)-M3D, NSJ5-SQ@@(B)-M3D, NSJ8- TV@@(B)-M3D, NSJW-ETN21, NSJW-CLK21-V1, NSJWIC101 NSJ Controllers Operation Manual

SYSMAC CP Series CP1H-X40D@-@, CP1H-XA40D@-@, CP1H-Y20DT-D CP1H CPU Unit Operation Manual

SYSMAC CP Series CP1H-X@@@@-@, CP1H-XA@@@@-@, CP1H-Y@@@@- CP1H CPU Uni

SYSMAC CP Series CP1L-L10D@-@,

CP1L-L14D@-@, CP1L-L20D@-@, CP1L-M30D@-@, CP1L-M40D@-@, CP1L-M60D@-@

CP1L CPU Unit Operation Manual SYSMAC CP Series CP1E CPU Unit Hardware User's

Manual CP1E-E@@D@-@ CP1E-N@@D@-@

t Programming Manual

W473 Describes the following for CJ2 CPU Units:

• CPU Unit operation

• Internal memory

• Programming

• Settings

• Function built into the CPU Unit

Also refer to the Hardware User's Manual (W472)

W472 Describes the following for CJ2 CPU Units:

• Overview and features

• Basic system configuration

• Part nomenclature and functions

• Mounting and setting procedure

• Remedies for errors

Also refer to the Software User's Manual (W473)

W465 Describes the built-in EtherNet/IP port and Ether-

Net/IP Units. Describes basic settings, tag data links, FINS

communication, and other functions.

W452 Provides basic specifications on NSJ Controllers,

including an overview, designing, installation, and maintenance.

W450 Provides basic specifications on CP-series CP1H

PLCs, including an overview, designing, installation, and maintenance.

W451 Provides information on programming CP-series

PLCs.

W462 Provides basic specifications on CP-series CP1L

PLCs, including an overview, designing, installation, and maintenance.

W479 Describes the following information for CP1E

PLCs.

• Overview and features

• Basic system configuration

• Part names and functions

• Installation and settings

• Troubleshooting

Name Cat. No. Contents

SYSMAC CP Series CP1E CPU Unit Software User's Manual CP1E-E@@D@-@ CP1E-N@@D@-@

SYSMAC CP Series CP1E CPU Unit Instructions Reference Manual CP1E-E@@D@-@ CP1E-N@@D@-@

SYSMAC CXONE-AL@@C-V@/AL@@D-V@ CX-One FA Integrated Tool Package Setup Manual

SYSMAC CXONE-AL@@C-V@/, CXONE-AL@@D-V@, CS/CJ/CP/ NSJ Series CX-Integrator Operation Manual

SYSMAC WS02-CX@@-V@ CX-Programmer Operation Manual

SYSMAC CX-Programmer WS02-CX@@-V@ Operation Manual: Function Blocks/Structured Text

SYSMAC WS02-CX@@-V@ CX-Programmer Operation Manual: SFC

W480 Describes the following information for CP1E

PLCs.

• CPU Unit operation

• Internal memory

• Programming

• Settings

• CPU Unit built-in functions

• Interrupts

• High-speed counter inputs

• Pulse outputs

• Serial communications

• Other functions

W483 Describes each programming instruction in detail.

W463 Provides an overview of the CX-One FA Inte-

grated Tool Package and CX-One installation procedures.

W464 Describes setting and monitoring networks.

W446 Describes operating procedures for the CX-Pro-

grammer Support Software running on a Windows computer.

W447 Describes specifications and procedures required

to use function blocks/structured text.

W469 Describes specifications and procedures required

to use SFC programming functions.

Section 1 introduces the C-mode commands and FINS commands, and explains the relationship between them.

Section 2 provides an overview of C-mode commands.

Section 3 provides an overview of FINS commands.

Section 4 provides detailed descriptions of the C-mode commands.

Section 5 provides detailed descriptions of the FINS commands.

!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.

xii

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.

xiii

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.

xiv

PRECAUTIONS

This section provides general precautions for using the CS/CJ-series Programmable Controllers (PLCs) and related devices.

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

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

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

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

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

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 programming and operating the Unit. Be sure to read this manual before attempting to use the Unit 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 The CPU Unit refreshes I/O even when the program is stopped (i.e., even in

PROGRAM mode). Confirm safety thoroughly in advance before changing the status of any part of memory allocated to I/O Units, Special I/O Units, or CPU Bus Units. Any changes to the data allocated to any Unit may result in unexpected operation of the loads connected to the Unit. Any of the following operation may result in changes to memory status.

• Transferring I/O memory data to the CPU Unit from a Programming Device.

• Changing present values in memory from a Programming Device.

• Force-setting/-resetting bits from a Programming Device.

• Transferring I/O memory files from a Memory Card or EM file memory to the CPU Unit.

• Transferring I/O memory from a host computer or from another PLC on a network.

xvi

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

so may result in electric shock.

Safety Precautions 3

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

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

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

Controller), including the following items, 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.

• 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-V-DC 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.

!Caution Confirm safety before transferring data files stored in the file memory (Mem-

ory Card or EM file memory) to the I/O area (CIO) of the CPU Unit using a peripheral tool. Otherwise, the devices connected to the output unit may malfunction regardless of the operation mode of the CPU Unit.

!Caution Fail-safe 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. Serious accidents may result from abnormal operation if proper measures are not provided.

!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 The CS1-H, CJ1-H, CJ1M, or CS1D CPU Unit automatically backs up the

user program and parameter data to flash memory when these are written to the CPU Unit. I/O memory (including the DM, EM, and HR Areas), however, is not written to flash memory. The DM, EM, and HR Areas can be held during power interruptions with a battery. If there is a battery error, the contents of these areas may not be accurate after a power interruption. If the contents of the DM, EM, and HR Areas are used to control external outputs, prevent inappropriate outputs from being made whenever the Battery Error Flag (A402.04) is ON.

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

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

xvii

Operating Environment Precautions 4

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

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

!Caution Do not touch the Power Supply Unit when power is being supplied or immedi-

ately after the power supply is turned OFF. The Power Supply Unit will be hot and you may be burned.

!Caution Be careful when connecting personal computers or other peripheral devices

to a PLC to which is mounted a non-insulated Unit (CS1W-CLK12/52(-V1) or CS1W-ETN01) connected to an external power supply. A short-circuit will be created if the 24 V side of the external power supply is grounded and the 0 V side of the peripheral device is grounded. When connecting a peripheral device to this type of PLC, either ground the 0 V side of the external power supply or do not ground the external power supply at all.

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.

!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.

xviii

Application Precautions 5

5 Application Precautions

Observe the following precautions when using the PLC System.

• You must use the CX-Programmer (programming software that runs on Windows) if you need to program more than one task. A Programming Console can be used to program only one cyclic task plus interrupt tasks. A Programming Console can, however, be used to edit multitask programs originally created with the CX-Programmer.

!WARNING Always heed these precautions. Failure to abide by the following precautions

could lead to serious or possibly fatal injury.

• Always connect to a class-3 ground (to 100 Ω or less) when installing the Units. Not connecting to a class-3 ground may result in electric shock.

• A class-3 ground (to 100 Ω or less) must be installed when connecting the GR and LG terminals on the Power Supply Unit.

• Always turn OFF the power supply to the PLC 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, Inner Boards, or any other Units.

• Assembling the Units.

• Setting DIP switches or rotary switches.

• Connecting cables or wiring the system.

• Connecting or disconnecting the connectors.

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

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

• The user program and parameter area data in the CS1-H, CS1D, CJ1-H, and CJ1M CPU Units are backed up in the built-in flash memory. The BKUP indicator will light on the front of the CPU Unit when the backup operation is in progress. Do not turn OFF the power supply to the CPU Unit when the BKUP indicator is lit. The data will not be backed up if power is turned OFF.

• When using a CS-series CS1 CPU Unit for the first time, install the CS1W-BAT01 Battery provided with the Unit and clear all memory areas from a Programming Device before starting to program. (Not required for CS1-H, CJ1, CJ1-H, CJ1M, or CS1D CPU Units.)

• When using the internal clock for a CS-series CS1 CPU Unit, turn ON power after installing the battery and set the clock from a Programming Device or using the DATE(735) instruction. The clock will not start until the time has been set. (Not required for CS1-H, CJ1, CJ1-H, CJ1M, or CS1D CPU Units.)

• When using a CS1-H, CJ1, CJ1-H, CJ1M, or CS1D CPU Unit, the PLC Setup is set to specify using the mode set on the Programming Console, and a Programming Console is not connected, the CPU Unit will start in RUN mode. This is the default setting in the PLC Setup. A CS1 CPU Unit will start in PROGRAM mode under the same conditions.

xix

Application Precautions 5

• When creating an AUTOEXEC.IOM file from a Programming Device (a Programming Console or the CX-Programmer) to automatically transfer data at startup, set the first write address to D20000 and be sure that the size of data written does not exceed the size of the DM Area. When the data file is read from the Memory Card at startup, data will be written in the CPU Unit starting at D20000 even if another address was set when the AUTOEXEC.IOM file was created. Also, if the DM Area is exceeded (which is possible when the CX-Programmer is used), the remaining data will be written to the EM Area.

• Always turn ON power to the PLC before turning ON power to the control system. If the PLC power supply is turned ON after the control power supply, temporary errors may result in control system signals because the output terminals on DC Output Units and other Units will momentarily turn ON when power is turned ON to the PLC.

• Fail-safe measures must be taken by the customer to ensure safety in the event that outputs from Output Units remain ON as a result of internal circuit failures, which can occur in relays, transistors, and other elements.

• Fail-safe 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.

• Interlock circuits, limit circuits, and similar safety measures in external circuits (i.e., not in the Programmable Controller) must be provided by the customer.

• Do not turn OFF the power supply to the PLC when data is being transferred. In particular, do not turn OFF the power supply when reading or writing a Memory Card. Also, do not remove the Memory Card when the BUSY indicator is lit. To remove a Memory Card, first press the memory card power supply switch and then wait for the BUSY indicator to go out before removing the Memory Card.

• If the I/O Hold Bit is turned ON, the outputs from the PLC will not be turned OFF and will maintain their previous status when the PLC is switched from RUN or MONITOR mode to PROGRAM mode. Make sure that the external loads will not produce dangerous conditions when this occurs. (When operation stops for a fatal error, including those produced with the FALS(007) instruction, all outputs from Output Unit will be turned OFF and only the internal output status will be maintained.)

• The contents of the DM, EM, and HR Areas in the CPU Unit are backed up by a Battery. If the Battery voltage drops, this data may be lost. Provide countermeasures in the program using the Battery Error Flag (A402.04) to re-initialize data or take other actions if the Battery voltage drops.

• When supplying power at 200 to 240 VAC for CS-series PLCs, always remove the metal jumper from the voltage selector terminals. The product will be destroyed if 200 to 240 VAC is supplied while the metal jumper is attached.

• Always use the power supply voltages specified in the operation manuals. 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.

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

Application Precautions 5

• 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 or connect loads to the Output Units in excess of the maximum switching capacity. Excess voltage or loads may result in burning.

• Separate the line ground terminal (LG) from the functional ground terminal (GR) on the Power Supply Unit before performing withstand voltage tests or insulation resistance tests. Not doing so may result in burning.

• Install the Units properly as specified in the operation manuals. Improper installation of the Units may result in malfunction.

• With CS-series PLCs, be sure that all the Unit and Backplane mounting screws are tightened to the torque specified in the relevant manuals. Incorrect tightening torque may result in malfunction.

• Be sure that all the 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.

• Leave the label attached to the Unit when wiring. Removing the label may result in malfunction if foreign matter enters the Unit.

• 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 all connections correctly.

• Double-check all wiring and switch settings before turning ON the power supply. Incorrect wiring may result in burning.

• Mount Units only after checking terminal blocks and connectors completely.

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

• Check switch settings, the contents of the DM Area, and other preparations before starting operation. Starting operation without the proper settings or data may result in an unexpected operation.

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

• 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 setting of the startup operating mode).

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

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

• Do not pull on the cables or bend the cables beyond their natural limit. Doing either of these may break the cables.

• Do not place objects on top of the cables or other wiring lines. Doing so may break the cables.

• Do not use commercially available RS-232C personal computer cables. Always use the special cables listed in this manual or make cables

xxi

Application Precautions 5

according to manual specifications. Using commercially available cables may damage the external devices or CPU Unit.

• Never connect pin 6 (5-V power supply) on the RS-232C port on the CPU Unit to any device other than an NT-AL001 or CJ1W-CIF11 Adapter. The external device or the CPU Unit may be damaged.

• 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.

• Before touching a 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.

• When transporting or storing circuit boards, cover them in antistatic material to protect them from static electricity and maintain the proper storage temperature to protect the LSIs, ICs, and other components.

• Do not touch circuit boards or the components mounted to them with your bare hands. There are sharp leads and other parts on the boards that may cause injury if handled improperly.

• Do not short the battery terminals or charge, disassemble, heat, or incinerate the battery. Do not subject the battery to strong shocks. Doing any of these may result in leakage, rupture, heat generation, or ignition of the battery. Dispose of any battery that has been dropped on the floor or otherwise subjected to excessive shock. Batteries that have been subjected to shock may leak if they are used.

• UL standards required that batteries be replaced only by experienced technicians. Do not allow unqualified persons to replace batteries.

• Dispose of the product and batteries according to local ordinances as they apply. Have qualified specialists properly dispose of used batteries as industrial waste.

• With a CJ-series PLC, the sliders on the tops and bottoms of the Power Supply Unit, CPU Unit, I/O Units, Special I/O Units, and CPU Bus Units must be completely locked (until they click into place). The Unit may not operate properly if the sliders are not locked in place.

• With a CJ-series PLC, always connect the End Plate to the Unit on the right end of the PLC. The PLC will not operate properly without the End Plate.

• Unexpected operation may result if inappropriate data link tables or parameters are set. Even if appropriate data link tables and parameters have been set, confirm that the controlled system will not be adversely affected before starting or stopping data links.

• CPU Bus Units will be restarted when routing tables are transferred from a Programming Device to the CPU Unit. Restarting these Units is required to read and enable the new routing tables. Confirm that the system will not be adversely affected before allowing the CPU Bus Units to be reset.

xxii

SECTION 1

Introduction

This section introduces the C-mode commands and FINS commands, and explains the relationship between them.

1-1 Overview of Communications Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 C-mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-3 FINS Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Overview of Communications Commands Section 1-1

1-1 Overview of Communications Commands

Communications Commands Addressed to CS/CJ/CP/NSJ-series Units

A CS/CJ/CP-series CPU Unit or NSJ Controller can receive the following communications commands.

C-mode commands via Host Link

Communications commands

FINS commands

C-mode Commands C-mode commands are specialized Host Link communications commands.

They are issued by a host computer and sent to a CPU Unit. The devices that can be connected for serial communications are the CPU Unit, a Serial Communications Unit, and a Serial Communications Board.

FINS Commands FINS commands are message service communications commands. They do

not depend on a particular transmission path. They can be used for communications on various networks (Controller Link, Ethernet, etc.) and for serial communications (Host Link). They can be issued from a CPU Unit, Special I/O Unit, or host computer, and they can also be sent to any of these. The specific commands that can be sent depend on the destination.

This manual explains commands sent to CS/CJ/CP-series CPU Units and NSJ Controllers, when the commands are issued from a CPU Unit or a host computer connected by Host Link.

Via CMND(490)/SEND(090)/RECV(098)

Via Host Link

Note When the source of the commands is a CPU Unit, the FINS commands are

sent by means of CMND(490)/SEND(090)/RECV(098). When the source is a host computer, the FINS commands are issued using Host Link protocol.

1-2 C-mode Commands

The following table lists the C-mode (Host Link) commands. For details, refer to SECTION 4 C-mode Commands.

Type Header

I/O memory reading

code

RR CIO AREA READ Reads the specified number of words beginning with the

RL LR AREA READ Reads the specified number of words beginning with the

RH HR AREA READ Reads the specified number of words beginning with the

RC TIMER/COUNTER PV READ Reads the specified number of words of the timer/counter

RG TIMER/COUNTER STATUS

READ

RD DM AREA READ Reads the specified number of words beginning with the

RJ AR AREA READ Reads the specified number of words beginning with the

RE EM AREA READ Reads the specified number of words beginning with the

Name Function

designated CIO word.

designated LR word.

designated HR word.

PV beginning with the designated word. Reads the specified number of words of the timer/counter

status beginning with the designated word.

designated DM word.

designated AR word.

designated EM word.

C-mode Commands Section 1-2

Type Header

I/O memory writing

Timer/counter SV reading

Timer/counter SV changing

CPU Unit status MS STATUS READ Reads the CPU Unit’s operating conditions (operating

Forced set/reset

PLC model code reading

Testing TS TEST Returns, just as it is, a single block that was sent from the

Program area accessing

code

WR CIO AREA WRITE Writes the specified data in word units beginning with the

WL LR AREA WRITE Writes the specified data in word units beginning with the

WH HR AREA WRITE Writes the specified data in word units beginning with the

WC TIMER/COUNTER PV WRITE Writes the specified timer/counter PV data in word units

WD DM AREA WRITE Writes the specified data in word units beginning with the

WJ AR AREA WRITE Writes the specified data in word units beginning with the

WE EM AREA WRITE Writes the specified data in word units beginning with the

R# TIMER/COUNTER SV READ 1Reads in four digits BCD the constant SV that is written as

R$ TIMER/COUNTER SV READ 2Finds the specified timer/counter instruction, beginning

R% TIMER/COUNTER SV READ 3Finds the specified timer/counter instruction, beginning

W# TIMER/COUNTER SV

CHANGE 1

W$ TIMER/COUNTER SV

CHANGE 2

W% TIMER/COUNTER SV

CHANGE 3

SC STATUS CHANGE Changes the CPU Unit’s operating mode. MF ERROR READ Reads the CPU Unit’s error information (i.e., all fatal or

KS FORCED SET Forcibly sets one designated bit. KR FORCED RESET Forcibly resets one designated bit. FK MULTIPLE FORCED

SET/RESET

KC FORCED SET/RESET CAN-

CEL

MM PLC MODEL READ Reads the model code of the CPU Unit.

RP PROGRAM READ Reads, in one batch, the contents of the CPU Unit’s user

WP PROGRAM WRITE Writes into the CPU Unit’s user program area the

Name Function

designated CIO word.

designated LR word.

designated HR word.

beginning with the designated word.

designated DM word.

designated AR word.

designated EM word.

an operand of the designated timer/counter instruction.

with the designated program address, and reads the constant SV in four digits or the word in which the SV is stored.

with the designated program address, and reads the constant SV in four digits (BCD) or the word in which the SV is stored.

Changes the SV of the specified timer/counter instruction to a new constant SV.

Finds the specified timer/counter instruction, beginning with the designated program address in the user program, and changes the constant SV in four digits (BCD) or the word in which the SV is stored to a new constant SV or storage word.

mode, forced set/reset status, and fatal errors).

non-fatal errors currently in effect).

Forcibly sets/resets/cancels multiple designated bits.

Cancels all forced set/reset status.

host computer.

program at the machine language (object) level.

machine language (object) sent from the host computer.

FINS Commands Section 1-3

Type Header

I/O table creation MI I/O TABLE CREATE Creates an I/O table with the contents of the actual I/O

I/O memory area registration and reading

Host Link communications processing

code

QQMR REGISTER I/O MEMORY Registers the I/O memory words or bits that are to be

QQIR READ I/O MEMORY Reads the registered I/O memory words/bits all at once. XZ ABORT (command only) Aborts the operation being performed by a Host Link com-

** INITIALIZE (command only) Initializes the transfer control procedures for all Host Link

IC Undefined command

(response only)

Name Function

configuration.

read.

mand, and then returns to the initial status.

Units. This is the response when the command header code

cannot be decoded.

1-3 FINS Commands

The following table lists the FINS commands. For details, refer to SECTION 5 FINS Commands.

Type Command

I/O memory area access

Parameter area access

Program area access

Operating mode changes

Machine configuration reading

Status reading 06 01 CPU UNIT STATUS READ Reads the status of the CPU Unit.

Time data access 07 01 CLOCK READ Reads the present year, month, date,

code

MR SR

01 01 MEMORY AREA READ Reads the contents of consecutive I/O mem-

01 02 MEMORY AREA WRITE (See

note.)

01 03 MEMORY AREA FILL (See note.) Writes the same data to the specified range

01 04 MULTIPLE MEMORY AREA READ Reads the contents of specified non-consec-

01 05 MEMORY AREA TRANSFER (See

note.)

02 01 PARAMETER AREA READ Reads the contents of consecutive parame-

02 02 PARAMETER AREA WRITE (See

note.)

02 03 PARAMETER AREA FILL (CLEAR)

(See note.) 03 06 PROGRAM AREA READ Reads the UM (User Memory) area. 03 07 PROGRAM AREA WRITE (See

note.) 03 08 PROGRAM AREA CLEAR (See

note.) 04 01 RUN (See note.) Changes the CPU Unit’s operating mode to

04 02 STOP (See note.) Changes the CPU Unit’s operating mode to

05 01 CPU UNIT DATA READ Reads CPU Unit data. 05 02 CONNECTION DATA READ Reads the model numbers of the device cor-

06 20 CYCLE TIME READ Reads the maximum, minimum, and average

07 02 CLOCK WRITE (See note.) Changes the present year, month, date,

Name Function

ory area words. Writes the contents of consecutive I/O mem-

ory area words.

of I/O memory area words.

utive I/O memory area words. Copies the contents of consecutive I/O mem-

ory area words to another I/O memory area.

ter area words. Writes the contents of consecutive parame-

ter area words. Clears the specified range of parameter area

words.

Writes to the UM (User Memory) area.

Clears a specified range of the UM (User Memory) area.

RUN or MONITOR.

PROGRAM.

responding to addresses.

cycle time.

minute, second, and day of the week.

minute, second, or day of the week.

FINS Commands Section 1-3

Type Command

Message display 09 20 MESSAGE READ/CLEAR Reads and clears messages, and reads

Access rights 0C 01 ACCESS RIGHT ACQUIRE (See

Error log 21 01 ERROR CLEAR (See note.) Clears errors or error messages.

FINS write access log

File memory 22 01 FILE NAME READ Reads file device data.

Debugging 23 01 FORCED SET/RESET (See note.) Force-sets or force-resets bits, or releases

code

MR SR

note.)

0C 02 ACCESS RIGHT FORCED

ACQUIRE

0C 03 ACCESS RIGHT RELEASE Releases the access right that has been

21 02 ERROR LOG READ Reads the error log. 21 03 ERROR LOG CLEAR (See note.) Clears all error log records. 21 40 FINS WRITE ACCESS LOG READ The CPU Unit automatically keeps a log of

21 41 FINS WRITE ACCESS LOG

CLEAR (See note.)

22 02 SINGLE FILE READ Reads a specified length of file data from a

22 03 SINGLE FILE WRITE (See note.) Writes a specified length of file data from a

22 04 FILE MEMORY FORMAT (See

note.)

22 05 FILE DELETE (See note.) Deletes specified files stored in the file

22 07 FILE COPY (See note.) Copies files from one file device to another

22 08 FILE NAME CHANGE (See note.) Changes a file name. 22 0A MEMORY AREA–FILE TRANSFER

(See note.)

22 0B PARAMETER AREA–FILE TRANS-

FER (See note.)

22 0C PROGRAM AREA–FILE TRANS-

FER (See note.)

22 15 DIRECTORY CREATE/DELETE

(See note.)

22 20 MEMORY CASSETTE TRANS-

FER (CP1H/CP1L CPU Units only)

23 02 FORCED SET/RESET CANCEL

(See note.)

Name Function

FAL/FALS messages. Acquires the access right as long as no other

device holds it. Acquires the access right even if another

device already holds it.

acquire.

any access for FINS write commands. This command reads this log.

Clears the FINS write access log.

specified position within a single file.

specified position within a single file. Formats (initializes) the file device.

device.

file device in the same system.

Transfers or compares data between the I/O memory area and the file device.

Transfers or compares data between the parameter area and the file device.

Transfers or compares data between the UM (User Memory) area and the file device.

Creates or deletes a directory.

Transfers and verifies data between a Memory Cassette and the CPU Unit.

force-set status. Cancels all bits that have been force-set or

force-reset.

Note These commands will not be accepted and an end code of 2102 hex (cannot

write due to protection) will be returned if the Write Protection from FINS Commands Sent to CPU Units via Networks option is selected in the PLC Setup for a CS/CJ-series CPU Unit with unit version 2.0 or later, for a CPseries CPU Unit, or for an NSJ Controller.

FINS Commands Section 1-3

Overview of C-mode Commands

This section provides an overview of C-mode (Host Link) commands.

2-1 C-mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2-2 Command/Response Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2-3 Application Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-4 Precautions when Reusing Programs from Earlier Models . . . . . . . . . . . . . . 15

2-4-1 C-series Host Link Units with 1:N Host Link Format Selected . . . . 15

2-4-2 C-series Host Link Units with 1:1 Host Link Format Selected . . . . 20

2-4-3 C-mode Command Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

SECTION 2

C-mode Commands Section 2-1

2-1 C-mode Commands

C-mode (Host Link) commands form a command/response system for serial communications (Host Link Mode) to perform various control operations between a CPU Unit and a host computer directly connected to it. These operations include reading from and writing to I/O memory, changing operating modes, executing forced set and forced reset operations, and so on.

C-mode command

Response

C-mode command

Response

Note 1. There are two Host Link formats: the 1:N Host Link (with N ≥ 1) and the 1:1

Host Link.

• The 1:1 Host Link is the earlier Host Link format supported by C-series PLCs, such as the C200H, C1000H, and C2000H.

• The built-in peripheral and RS-232C ports of CS/CJ-series CPU Units, built-in serial ports of N-type CP1E CPU Units, serial port C on NSJ Controllers, and serial ports 1 and 2 on the Option Board for CP-series CPU Units support only the 1:N Host Link format. When a Serial Communications Board or Unit (version 1.2 or later) is being used, a 1:1 Host Link program created for a C-series PLC (C200H/C1000H/ C2000H) can be reused by selecting the Host Link 1:1 format.

In this manual, the term “Host Link” generally indicates the 1:N Host Link.

2. Unlike FINS commands, C-mode commands can only be addressed to a CPU Unit, and they cannot be used for message service outside of the local network. They cannot be used for functions such as file operations.

C-mode (Host Link) commands can be sent from a host computer connected to a CS/CJ-series Host Link Unit. Up to 32 PLCs (Host Link Units) can be connected to a single host computer. For identification, each Host Link Unit is assigned a unit number from 0 to 31.

The length of a single unit of a command or response exchange is called a “frame.” A single frame contains a maximum of 131 characters of data. Characters are sent and received as ASCII.

Note For a CS/CJ-series PLC, a “Host Link Unit” can be the CPU Unit, a Serial

Communications Unit, or a Serial Communications Board.

A maximum of 30 words of data can be transferred for the first command frame and a maximum of 31 words of data can be transferred for other command frames when reading or writing word data in I/O memory. When reading/writing more than 30 words of data, the data transfer will be processed in multiple transmissions, with 30 words in the first and up to 31 words in each of

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