Omron CJ2H-CPU6-EIP, CJ2M-CPU3, CS1W-EIP21, CJ1W-EIP21 User Manual

Cat. No. W465-E1-05

SYSMAC CS and CJ Series
CS1W-EIP21 (100Base-TX)
CJ1W-EIP21 (100Base-TX)
CJ2H-CPU6@-EIP (100Base-TX)
CJ2M-CPU3@ (100Base-TX/10Base-T)

EtherNet/IP Units

OPER ATION M ANUAL

CS1W-EIP21 (100Base-TX)
CJ1W-EIP21 (100Base-TX)
CJ2H-CPU6@-EIP (100Base-TX)
CJ2M-CPU3@ (100Base-TX/10Base-T)

EtherNet/IP Units

Operation Manual

Revised February 2010

iv

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 man ual. The w ord “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 produc ts, 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 displa ys to mean Programmable Controller.

Visual Aids

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.

Trademarks and Copyrights

EtherNet/IP is a registered trademark of the ODVA (Open DeviceNet Vendor Association).
Ethernet is a trademark of the Xerox Corporation.
Microsoft, Windows, Windows NT, Windows 2000, Windows XP, and Windows Vista are registered

trademarks of the Microsoft Corporation.
Other names of systems or products that appear in this document are trademarks or registered trade-

marks of the respective company.

 OMRON, 2007

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 th e information contained herein. Moreo v er, 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. Nevert heless, 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.

v

vi

TABLE OF CONTENTS

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxiv

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

SECTION 1

Overview of EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 EtherNet/IP Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Devices Required for Constructing a Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-3 Support Software Required to Construct a Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-4 Communications Services Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-5 Network Configurator Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

SECTION 2

Unit Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2-1 EtherNet/IP Unit and Built-in EtherNet/IP Port Specifications . . . . . . . . . . . . . . . . . . . . . . 14

2-2 Nomenclature and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2-3 Selecting the Network Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SECTION 3

Installation and Initial Setup . . . . . . . . . . . . . . . . . . . . . . . . . 33

3-1 Overview of Initial Setup Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3-3 Mounting to a PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3-4 Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3-5 Connecting to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

3-6 Creating I/O Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3-7 Setting the Local IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

3-8 TCP/IP and Link Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

3-9 Tag Data Link Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

3-10 Other Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3-11 Communications Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

vii

TABLE OF CONTENTS

SECTION 4

Memory Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

4-1 Overview of Memory Allocated to the EtherNet/IP Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

4-2 CIO Area Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

4-3 DM Area Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

4-4 User Settings Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

4-5 Auxiliary Area Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

SECTION 5

Determining IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

5-1 IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

5-2 IP Addresses in FINS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

5-3 Private and Global Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

SECTION 6

Tag Data Link Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

6-1 Overview of Tag Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

6-2 Setting Tag Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

6-3 Ladder Programming with Tag Data Links. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

SECTION 7

Message Communications Functions . . . . . . . . . . . . . . . . . . 187

7-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

7-2 FINS Message Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

7-3 Explicit Message Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

7-4 Message Communications Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

7-5 Message Communications Error Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

7-6 Message Communications Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

SECTION 8

FINS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

8-1 Overview of FINS Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

8-2 FINS/UDP Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

8-3 FINS/TCP Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

8-4 Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

8-5 Using FINS Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211

8-6 Communicating between OMRON PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

8-7 Precautions on High Traffic in FINS Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

SECTION 9

Message Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

9-1 Sending Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234

9-2 Receiving Explicit Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

viii

TABLE OF CONTENTS

SECTION 10
Communications Performance and Communications Load 261

10-1 Communications System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .262

10-2 Adjusting the Communications Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

10-3 I/O Response Time in Tag Data Links. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

10-4 Tag Data Link Performance for CJ2M Built-in EtherNet/IP Ports . . . . . . . . . . . . . . . . . . . . 291

10-5 Message Service Transmission Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

SECTION 11

FTP Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

11-1 Overview and Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .302

11-2 FTP Server Function Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303

11-3 Using the FTP Server Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

11-4 FTP Server Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

11-5 Using FTP Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308

11-6 Checking FTP Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

11-7 Using File Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

11-8 FTP File Transfer Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

11-9 Host Computer Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

SECTION 12

Automatic Clock Adjustment Function . . . . . . . . . . . . . . . . 323

12-1 Automatic Clock Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

12-2 Using the Automatic Clock Adjustment Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

12-3 Automatic Clock Adjustment Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

12-4 Automatic Clock Adjustment Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

SECTION 13

Maintenance and Unit Replacement. . . . . . . . . . . . . . . . . . . 331

13-1 Maintenance and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

13-2 Simple Backup Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .333

13-3 Using the Backup Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

SECTION 14

Troubleshooting and Error Processing. . . . . . . . . . . . . . . . . 339

14-1 Checking Status with the Network Configurator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

14-2 Using the LED Indicators and Display for Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . 347

14-3 Connection Status Codes and Error Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358

14-4 Error Log Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

14-5 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

14-6 Troubleshooting with FINS Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

ix

TABLE OF CONTENTS

Appendices

A CS/CJ-series Ethernet Unit Function Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375

B Ethernet Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

C TCP Status Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .379

D CIP Message Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

E FINS Commands Addressed to EtherNet/IP Units or Built-in EtherNet/IP Ports . . . . . . . . 391

F EDS File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

G Precautions for Using Windows XP, Vista, or Windows 7 . . . . . . . . . . . . . . . . . . . . . . . . . . 423

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

x

About this Manual:

This manual describes the operation of the CS/CJ-series EtherNet/IP Units and the b uilt-in EtherNet /IP
ports on a CJ2 CPU Unit for constructing applications and includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before
attempting to install or operate the EtherNet/IP Unit or built-in EtherNet/IP port. Be sure to read the
precautions provided in the following section.

Precautions provides general precautions for using the CS/CJ-series E therNet/IP Units and built-in
EtherNet/IP ports.

Section 1 introduces the functions and protocols used in EtherNet/IP Unit or built-in EtherNet/IP port
communications services.

Section 2 provides the specifications of EtherNet/IP Units and introduces recommend ed network con­figuration devices.

Section 3 explains how to install and make t he initial settings required for operation of the EtherNet/IP
Unit or built-in EtherNet/IP port.

Section 4 describes the words allocated in the CIO Area and the DM Area for EtherNet/IP Units or
built-in EtherNet/IP ports.

Section 5 explains how to manage and use IP addresses.
Section 6 describes tag data link functions and related Network Configurator operations.
Section 7 describes message communications using FINS messages and explicit messages.
Section 8 provides information on communicating on EtherNet/IP Systems and interconnected net-

works using FINS commands. The infor mation provided in the section deals only with FINS communi­cations in reference to EtherNet/IP Units or built-in EtherNet/IP ports.

Section 9 describes message communications using FINS commands sent from the ladder program
in the CPU Unit of the PLC.

Section 10 describes the communications performance in an EtherNet/IP network, and shows how to
estimate the I/O response times and transmission delays.

Section 11 describes the functions provided by the FTP server.
Section 12 provides an overview of the automatic cloc k adjustment fu nction, including d etails on spec-

ifications, required settings, operations from CX-Programmer, and troubleshooting.
Section 13 describes cleaning, inspection, and Unit replacement procedures, as well as the Simple

Backup Function.
Section 14 describes error processing, periodic maintenance operations, and troubleshooting proce-

dures needed to keep the EtherNet/IP netw ork operating properly. We recommend re ading through the
error processing procedures before operation so that operating errors can be identified and correc ted
more quickly.

Appendices provide information on EtherNet/IP network parameters, the buffer configuration, TCP
status transitions, ASCII characters, maintenance, and inspections.

xi

Relevant Manuals

The following table lists CS- and CJ-series manuals that contain information relevant to EtherNet/IP
Units or built-in EtherNet/IP ports.

Manual

number

W465 CS1W-EIP21

CJ1W-EIP21
CJ2H-CPU6@-EIP
CJ2M-CPU3@

W420 CS1W-ETN21

CJ1W-ETN21

W421 CS1W-ETN21

CJ1W-ETN21

W343 CS1W-ETN01

CS1W-ETN11
CJ1W-ETN11

W342 CS1G/H-CPU@@H

CS1G/H-CPU@@-V1
CS1W-SCU@@-V1
CS1W-SCB@@-V1
CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ2M-CPU@@
CJ1G/H-CPU@@H
CJ1G-CPU@@
CJ1M-CPU@@
CJ1W-SCU@@-V1
CP1E-E@@D@-@
CP1E-N@@D@-@
CP1H-X@@@@-@
CP1H-Y@@@@-@@

W472 CJ2H-CPU6@-EIP

CJ2H-CPU6@
CJ2M-CPU@@

W473 CJ2H-CPU6@-EIP

CJ2H-CPU6@
CJ2M-CPU@@

Model Name Contents

EtherNet/IP Units
Operation Manual
(this manual)

Ethernet Units Oper­ation Manual
Construction of Net­works

Ethernet Units Oper­ation Manual
Construction of
Applications

Ethernet Units Oper­ation Manual

Communications
Commands Refer­ence Manual

CJ-series CJ2 CPU
Unit Hardware
User’s Manual

CJ-series CJ2 CPU
Unit Software User’s
Manual

Provides information on operating and installing Ether­Net/IP Units, including details on basic settings, tag data
links, and FINS communications.

Refer to the Communications Commands Reference
Manual (W342) for details on FINS commands that can
be sent to CS-series and CJ-series CPU Units when
using the FINS communications service.

Refer to the Ethernet Units Operation Manual
Construction of Applications (W421) for details on con­structing host applications that use FINS communica­tions.

Provides information on operating and installing
100Base-TX Ethernet Units, including details on basic
settings and FINS communications. Refer to the Commu-
nications Commands Reference Manual (W342) for
details on FINS commands that can be sent to CS-series
and CJ-series CPU Units when using the FINS communi­cations service.

Provides information on constructing host applications for
100Base-TX Ethernet Units, including functions for send­ing/receiving mail, socket service, automatic clock adjust­ment, FTP server functions, and FINS communications.

Describes the installation and operation of the 10Base-5
and 10Base-T Ethernet Units.

Describes the C-series (Host Link) and FINS communi­cations commands used when sending communications
commands to CS-series, CJ-series, CP-series, and SYS­MAC One NSJ-series CPU Units.

Provides hardware information for the CJ2 CPU Units.
Information is included on features, system configuration,
component names, component functions, installation,
setting procedures, and troubleshooting.

Use together with the CJ-series CJ2 CPU Unit Software
User’s Manual (W473).

Provides software information for the CJ2 CPU Units.
Information is included on CPU Unit operation, internal
memory, programming, setting procedures, and CPU
Unit functions.

Use together with the CJ-series CJ2 CPU Unit Hardware
User’s Manual (W472).

xii

Manual

number

W474 CJ2H-CPU6@-EIP

CJ2H-CPU6@
CJ2M-CPU@@
CS1G/H-CPU-@@H
CS1G/H-CPU-@@-V1
CJ1G/H-CPU@@H
CJ1M-CPU@@
CJ1G-CPU@@
NSJ@-@@@@(B)-G5D
NSJ@-@@@@(B)-M3D

W339 CS1G/H-CPU@@H

CS1G/H-CPU-@@V1

W393 CJ1G/H-CPU@@H

CJ1G-CPU@@

W394 CS1G/H-CPU@@H

CS1G/H-CPU-@@V1
CJ1G/H-CPU@@H
CJ1G-CPU@@
NSJ@-@@@@(B)-G5D
NSJ@-@@@@(B)-M3D

W340 CS1G/H-CPU@@H

CS1G/H-CPU-@@V1
CJ1G/H-CPU@@H
CJ1G-CPU@@
NSJ@-@@@@(B)-G5D
NSJ@-@@@@(B)-M3D

W463 CXONE-AL@@C-V4

CXONE-AL@@D-V4

W446 WS02-CXPC@-V9 CX-Programmer

W464 CXONE-AL@@C-V4/

CXONE-AL@@D-V4

Model Name Contents

Programmable Con­trollers Instructions
Reference Manual

Programmable Con­trollers Operation
Manual

Programmable Con­trollers Operation
Manual

Programmable Con­trollers Program­ming Manual

Programmable Con­trollers Instructions
Reference Manual

CS-One Setup Man­ual

Operation Manual

CS/CJ/CP/NSJ­series CX-Integrator
Ver. 2.@ Operation
Manual

Describes the ladder diagram programming instructions
supported by CS-series and CJ-series PCs. Use this
manual for CJ2 CPU Units.

Provides an outline of, and describes the design, installa­tion, maintenance, and other basic operations for the CS­series PLCs. Information is also included on features,
system configuration, wiring, I/O memory allocations, and
troubleshooting.

Use together with the Programmable Controllers Pro-
gramming Manual (W394).

Provides an outline of, and describes the design, installa­tion, maintenance, and other basic operations for the CJ­series PLCs. Information is also included on features,
system configuration, wiring, I/O memory allocations, and
troubleshooting.

Use together with the Programmable Controllers Pro-
gramming Manual (W394).

Describes programming, tasks, file memory, and other
functions for the CS-series, CJ-series, and NS-J-series
PLCs.

Use together with the Programmable Controllers Opera-
tion Manual (W339 for CS-series PLCs and W393 for CJ­series PLCs).

Describes the ladder diagram programming instructions
supported by CS-series and CJ-series PCs. Use together
with the Programmable Controllers Operation Manual
(W339 for CS-series PLCs and W393 for CJ-series
PLCs), and the Programmable Controllers Programming
Manual (W394).

Describes the setup procedures for the CX-One. Informa­tion is also provided on the operating environment for the
CX-One.

Provides inf ormation on h ow to use the CX-Programmer,
a Windows-based programming device. Use together
with the Programmable Controllers Operation Manual
(W339 for CS-series PLCs and W393 for CJ-series
PLCs), Programmable Controllers Programming Manual
(W394) and the Programmable Controllers Instructions
Reference Manual (W340) to perform programming.

Describes the operating procedures of the CX-Integrator
that can be used to set up and monitor networks.

!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.

xiii

xiv

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 mat erials 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 eve nt shall the responsibil ity of OMR ON fo r any act e xcee d 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.

xv

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 e xhaustive list of all possible uses of the products, nor is it inte nded 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 pr oduct, or any
consequence thereof.

xvi

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, sp ecial model numbers may be assigned to fix or establish key
specifications for your application on your request. Please consult with your OMRON represe ntative 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

Perf ormance 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 ca refully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

xvii

xviii

Unit Versions of CS/CJ-series

Unit Versions A “unit version” has been introduced to manage Units in the CS/CJ Series

according to differences in functionality accompanying Unit upgrades.

Notation of Unit Versions
on Products

The unit version is given to the right of the lot number on the nameplate of the
products for which unit versions are being managed, as shown below.

■ CS1W-EIP21/CJ1W-EIP21

Product nameplate

CS1W-

UNIT

Lot No.

Lot No. 040401 0000 Ver.1.0

OMRON Corporation MADE IN JAPAN

Unit version
Example for unit version 1.0

■ CJ2H-CPU@@-EIP/CJ2M-CPU3@

Product nameplate

CJ2H-

UNIT

Indicates that the unit
version of the CPU Unit
is 1.0.

Indicates that the unit

Lot No. 080701 CPU Ver. 1.0 EIP Ver.2.0

OMRON Corporation MADE IN JAPAN

version of the built-in
EtherNet I/P port is 2.0.

Confirming Unit Versions
with Support Software

In this manual, the version of the EtherNet/IP port built into the CJ2H­CPU@@-EIP/CJ2M-CPU3@ CPU Unit is given as the unit version.

CX-Programmer version 4.0 can be used to confirm the unit version using the
Unit Manufacturing Information.

Note The unit versions of Pre-Ver.1.0 Units cannot be confirmed in U nit Manufac-

turing Information. The following dialog box is displayed.

In the IO Table Window, right-click and select Unit Ma nufacturing informa-
tion - CPU Unit.

The following Unit Manufacturing information Dialog Box will be displayed.

xix

Unit version

Note The unit version will be displayed in the Unit Manufacturing Information Dialog

Box.

Using Unit Version Label The following unit version label is provided with the EtherNet/IP Unit.

This label can be attached to the front of the EtherNet/IP Unit to differentiate
between EtherNet/IP Units with different unit versions.

Unit Versions and CX-Programmer Versions

Use the following versions of the CX-Programme r to mak e the Unit sett ings f or
the EtherNet/IP Unit.

Unit version CX-Programmer

Ver. 7.1 or lower Ver. 8.0 Ver. 8.02 or higher

Unit version 1.0 --- OK* OK
Unit version 2.0 --- OK OK

* The following auto update must be applied to use CX-Programmer version 8.0:

CX-Common Components/CPS Upgrade Software 2008.08 0302

Unit Version Notation In this manual, the unit version of a EtherNet/IP Unit is given as shown in the

following table.

Product nameplate Notation used in this manual Special remarks

Ver. 1.0 or later number
shown to right of the lot
number

Ethernet Unit Ver. 1.0 or later (See note.) Information without reference to specific Unit

Versions applies to all versions of the Unit.

Note Some Support Software products call the EtherNet/IP Unit version the “revi-

sion.” “Revision” is also sometimes used in this manual.

CIP Revisions and
Unit Versions

The CIP revisions corresponding to the unit versions of the EtherNet/IP Unit
are given in the following table.

Unit version CIP revision

Version 1.0 Revision 1.01
Version 2.0 Revision 2.01 or 2.02

xx

PRECAUTIONS

This section provides general precautions for using the CS/CJ-series EtherNet/IP Units and built-in EtherNet/IP ports.

The information contained in this section is important for the safe and reliable application of EtherNet/IP Units or
built-in EtherNet/IP ports. You must read this section and understand the informati on contained bef or e attempting
to set up or operate an EtherNet/IP Unit or built-in EtherNet/IP port.

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

6 Conformance to EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

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 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 a pplications that
can directly or indirectly aff ect huma n life. You must consult with your OMR ON
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 Do not attempt to disassemble, repair, or modify any Units. Any attempt to do

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

xxii

Safety Precautions 3

!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 Programmable Controller or
another external factor affecting the operation of the Programmable Control­ler. “Progr ammable Controller” indicates the CPU Unit and all other Units and
is abbreviated “PLC” in this manual.

• 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) instr uction is executed.
As a countermeasure for such errors, external safety measures must be
provided to ensure safety in the system.

• The PLC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instr uction is executed.
Unexpected operation, however, may still occur for errors in the I/O con­trol section, errors in I/O memory, and other errors that cannot be
detected by the self-diagnosis function. As a countermeasure for all such
errors, external safety measures must be provided to ensure safety in the
system.

• Provide measures in the computer system and programming to ensure
safety in the overall system even if errors or malfunctions occur in data
link communications or remote I/O communications.

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

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

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

!Caution Fail-safe measures must be taken by the customer to ensure safety in the

event of incorrect, missing, or abnormal signals caused b y brok en sig nal lines,
momentary power interruptions, or other causes. Serious accidents may
result from abnormal operation if proper measures are not provided.

!Caution Confirm safety at the destination node before changing or transferring to

another node the contents of a program, the PLC Setup, I/O tables, I/O mem­ory, or parameters. Changing or transferring any of these without confirming
safety may result in injury.

!Caution Tighten the screws on the term inal block of the AC Power Su pply Unit to the

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

xxiii

Operating Environment Precautions 4

4 Operating Environment Precautions

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

• 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 o f 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 e xposure to radioactivity.

• Locations close to power supplies.

5 Application Precautions

Observe the following precautions when using the EtherNet/IP Unit or built-in
EtherNet/IP port.

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

could lead to serious or possibly fatal injury.

• Always connect to a g round of 100 Ω or less when installing the Units. Not
connecting to a ground of 100 Ω or less may result in electric shock.

• Always turn OFF the power supply to the CPU Unit and Slaves 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 Packs, or Master 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 EtherNet/IP Unit, built-in EtherNet/IP port, or the system, or could damage
the Ethernet Unit. Always heed these precautions.

xxiv

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

Application Precautions 5

• Always use the pow er 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 tak e other safety measures against short-cir­cuiting in external wiring. Insufficient safety measures

• Make sure that all the Backpla ne mountin g screws, terminal block 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 att ached to the Un it when wiring. Removing the label may
result in malfunction if foreign matter enters the Unit.

• Remove the label after th e comple tion of wiring to ensure proper heat di s­sipation. 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.

• Observe the following precautions when wiring the communications
cable.

• Separate the communications cabl es from the powe r lines or high-ten­sion lines.

• Do not bend the communications cables past their nat ural be nding r a­dius.

• Do not pull on the communications cables.

• Do not place heavy objects on top of the communications cables.

• Always lay communications cable inside ducts.

• Use appropriate communications cables.

• Make sure that the terminal blocks, expansion cable connectors, and
other items with locking devices are locked in place.

• Wire all connections correctly according to instructions in this manual.

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

• Mount terminal blocks and connectors only after checking the mounting
location carefully.

• Check the user program (ladder program and other programs) and
parameters for p roper execution before actually running it on the Unit. Not
checking the program may result in 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.

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

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

• After replacing a Unit, resume operation only after transferring to the new
CPU Unit, Special I/O Unit, or CPU Bus Unit the contents of the DM Area,
HR Area, programs, parameters, and other data required for resuming
operation. Not doing so may result in an unexpected operation.

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

xxv

Conformance to EC Directives 6

• When transporting the Unit, use special packing boxes and protect it from
being exposed to excessive vibration or impacts during transportation.

• CPU Bus Units will be restar ted 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.

• When the settings (IP address or tag data link se ttin gs) of t he Et her Net/I P
Unit or built-in EtherNet/IP port are transferred from a Programming
Device, all of the destination EtherNet/IP Units or built-in EtherNet/IP
ports (nodes) will be reset in order to enable the transferred settings.
Transfer settings to the Ether Net/IP Un its or b u ilt-in Et herNet/IP ports only
after verifying that restarting the Units will not cause any problems in the
system.

• If a repeater hub is used for EtherNet/ IP tag d ata links (cyclic comm unica­tions), the network's communications load will increase, data collisions
will occur frequently, and stable communications will be impossible.
Always use a switching hub when using tag data links in the network.

• Before resetting a CPU Bus Unit or Special I/O Unit, always verify that
restart the Unit will not cause any problems in the system.

6 Conformance to EC Directives

6-1 Applicable Directives

•EMC Directives

• Low Voltage Directive

6-2 Concepts

EMC Directives

OMRON devices that comply with EC Directives also confor m 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 EMS (Electromagnetic Susceptibility) and EMI (Electromagnetic

Interference) Standards in the EMC (Electromagnetic Compatibility) stan­dards are as follows:

EtherNet/IP Unit EMS EMI

CS1W-EIP21
CJ1W-EIP21

EN61000-6-2

EN61000-6-4
(Radiated emission: 10-m
regulations)

xxvi

Low Voltage Directive

Always ensure that devices operating at voltages of 50 to 1,000 V AC and 75
to 1,500 V DC meet the required safety standards for the PLC (EN61131-2).

SECTION 1

Overview of EtherNet/IP

This section introduces the functions and protocols used in EtherNet/IP Unit or built-in EtherNet/IP port communications
services.

1-1 EtherNet/IP Unit Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Devices Required for Constructing a Network . . . . . . . . . . . . . . . . . . . . . . . . 4

1-3 Support Software Required to Construct a Network. . . . . . . . . . . . . . . . . . . . 4

1-4 Communications Services Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-5 Network Configurator Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-5-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-5-2 Network Configurator Requirements . . . . . . . . . . . . . . . . . . . . . . . . 10

1-5-3 Precautions When Using the Network Configurator . . . . . . . . . . . . 11

1

EtherNet/IP Unit Features Section 1-1

1-1 EtherNet/IP Unit Features

CX-One Support

Software

Ethernet (LAN) port

High-speed, High-capacity
Data Exchange through
Data Links

(3) Switching hub

(2) T wisted-pair cable

(1) Built-in EtherNet/IP port on

100 m
max.

(1) CS1W-EIP21 EtherNet/IP

Unit for CS-series

CS-series
PLC

EtherNet/IP System Configuration Example

(1) CJ1W-EIP21

EtherNet/IP Unit

CJ-series
PLC

CJ2 CPU Unit
(CJ2H-CPU@@-EIP/
CJ2M-CPU3@)

CJ-series
PLC

EtherNet/IP is an industrial multi-vendor network that uses Ether net compo­nents. The EtherNet/IP specifications are open standards managed by the
OD VA (Open DeviceNet Vendor Association), just like DeviceNet.

EtherNet/IP is not just a network between controllers; it is also used as a field
network. Since EtherNet/IP uses standard Ethernet technology, various gen­eral-purpose Ethernet devices can be used in the network. The EtherNet/IP
Unit and built-in EtherNet/IP port have the following features .

The EtherNet/IP protocol supports implicit communications, which allows
cyclic communications (called tag data links in this manual) with EtherNet/IP
devices. Data can be exchanged at high speed between Controllers and
devices, using high-volume tag sets (up to 640 words for the CJ2M and up to
184,832 words for other CPU Units) between PLCs.

Tag Data Link (Cyclic
Communications) Cycle
Time

Note The communications load to the nodes m ust be within the Units’ allo w ed com-

Communicating with FINS
Messages (FINS/TCP and
FINS/UDP)

Note There are no particular restrictions when sending FINS messages to OMRON

Network Connections with
Controller Link

Tag data links (cyclic communications) can operate at the cyclic period speci­fied for each application, regardless of the number of nodes. Data is
exchanged over the network at the refresh cycle set for each connection, so
the communications refresh cycle will not increase even if the number of
nodes is increased, i.e., the synchronicity of the connection’s data is pre­served.

Since the refresh cycle can be set for each connection, each application can
communicate at its ideal refresh cycle. For example, a processes interlocks
can be transferred at high speed while the production commands and the sta­tus monitor information are transferred at low speed.

munications bandwidth.
Data can be exchanged with other OMRON FA devices using SEND, RECV,

and CMND instruc tions from the ladder program, because Ether Net/IP sup­ports OMRON’s standard FINS message communications services.

There are two kinds of message services, using UDP/IP and TCP/IP (called
FINS/UDP and FINS/TCP), allowing flexible data exchange for different appli­cations.

Ethernet Units (CS1W-ETN21 or CJ1W-ETN21) in an Ethernet network.
Mutual connections of Controller Link and EtherNet/IP are also supported

(using the FINS communications service). The Controller Link connection
allows a PLC on the Controller Link networ k to be monitored from a PLC on
the EtherNet/IP network. Conversely, data can be exchanged with a PLC on
the EtherNet/IP network from a PLC on the Controller Link network.

2

EtherNet/IP Unit Features Section 1-1

FTP Server A built-in FTP server is provided to enable transferring files in the PLC to and

from a host computer. This enables transferring large amounts of data from a
client without any additional ladder programming.

Automatic PLC Clock
Adjustment

Note A separate SNTP server is necessary to automatically adjust the PLC clocks.

Manage the Network with
an SNMP Manager

Note A separate SNMP mana ger is necessary for network managemen t.

Specify Servers with Host
Names

Note (1) A separate DNS server is necessary to use host names with the DNS cli-

Set Classless IP Address
with CIDR

Plentiful Troubleshooting
Functions

The clocks built into PLCs connected to Ethernet can be automatically
adjusted to the time of the clock in the SNTP ser ver. If all of the clocks in the
system are automatically adjusted to the same time , ti me stam ps can be use d
to analyze various production histories.

Internal status information from the EtherNet/IP Unit or built-in EtherNet/IP
port can be passed to network management software that uses an SNMP
manager.

DNS client functionality allows you to use host nam es instead of IP addresses
to specify SNTP ser vers a nd SNMP managers. This is useful, for ex ample,
when server IP addresses change for system revisions because the IP
addresses are automatically found when host names are used.

ent.

(2) The DNS server is specified directly using its IP address.

A subnet mask can be set to use clas sless IP addres ses, allowing more flexi­bility in address settings.

A variety of functions are provided to quickly identify and handle errors.

• Self-diagnosis at power ON

• PING command to check the connection with another node

• Error Log functions record the time of occurrence and other error details

Note The CIP (Common Industrial Protocol) is a shared industrial protocol for the

OSI application layer. The CIP is used in networks such as EtherNet/IP, Con­trolNet, and DeviceNet. Data can be routed easily between networks that are
based on the CIP, so a transparent network can be easily configured from the
field device level to the host level.

The CIP has the following advantages.

• Destination nodes are specified by a relative path, without fixed routing
tables.

• The CIP uses the producer/consumer model. Nodes in the network are
arranged on the same level and it is possible to communicate with
required devices whenever it is necessary.
The consumer node will receive data sent from a producer node when the
connection ID in the packet indicates that the node requires the data.
Since the producer can send the same data with the same characteristics
in a multicast (either multicast or unicast can be selected), the time
required for the transfer is fixed and not dependent on the number of con­sumer nodes.

3

Devices Required for Constructing a Network Section 1-2

1-2 Devices Required for Constructing a Network

The basic configuration for an EtherNet/IP System consists of one switching
hub to which nodes are attached in star configuration using twisted-pair ca bl e.

CX-One Support

Software

Ethernet (LAN) port

(3) Switching hub

(2) T wisted-pair cable

(1) Built-in EtherNet/IP port on
100 m
max.

(1) CS1W-EIP21 EtherNet/IP

Unit for CS-series

CS-series
PLC

(1) CJ1W-EIP21

EtherNet/IP Unit

CJ-series
PLC

CJ2 CPU Unit
(CJ2H-CPU@@-EIP/
CJ2M-CPU3@)

CJ-series
PLC

The devices shown in the following table are required to configure a network
with CS1W-EIP21 and CJ1W -EIP21 Ethe rNet/IP Units or the b uilt-in EtherNet/
IP port in CJ2H-CPU@@-EIP/CJ2M-CPU3@ CPU Units.

Network device Contents

(1) CS1W-EIP21 EtherNet/IP

Units for CS-series PLCs,
CJ1W-EIP21 EtherNet/IP
Units for CJ-series PLCs,
or built-in EtherNet/IP port
in CJ2H-CPU@@-EIP/
CJ2M-CPU3@ CPU Units

(2) Twisted-pair cable The twisted-pair cable connects EtherNet/IP Units or

(3) Switching Hub This is a relay device that connects multiple nodes in

These are Communications Units or built-in ports
that connect a CS-series or CJ-series PLC to an Eth­erNet/IP network.

built-in EtherNet/IP ports to the switching hub, with
an RJ45 Modular Connector at each end.

Use an STP (shielded twisted-pair) cable of category
5, 5c, or higher.

a star-shaped LAN.

Recommended
Switching Hubs

For details on recommended devices for constructing a network, refer to 2-3-1
Recommended Network Devices.

Note If a repeater hub is used for EtherNet/IP tag data links (cyclic communica-

tions), the network’s communications load will increase, data collisions will
occur frequently, and stable communications will be impossible. Always use a
switching hub when using tag data links in the network.

1-3 Support Software Required to Construct a Network

This section describes the Support Software that is required to construct an
EtherNet/IP network. Make the tag data link settings and Unit setup settings
for the EtherNet/IP Unit or built-in EtherNet/IP port . Both of thes e settings are
stored in the EtherNet/IP Unit’s non-volatile memory (See note.). Support
Software is provided for each, as described below.

Note Unlike the Ethernet Units, the EtherNet/IP Unit’s TCP/IP settings are not

stored in the CPU Unit’s CPU Bus Unit System Setup Area. The settings are
stored in the EtherNet/IP Unit itself.

Unit Setup: CX­Programmer

The CX-Programmer is used to set basic parameters, such as the local IP
address of the EtherNet/IP Unit or built-in EtherNet/IP port and the subnet
mask. (The CX-Programmer is included in the CX-One.)
The CX-Programmer can also be used to check if data I/O is being performed
correctly for ta g data links.

4