Omron CS1W-ETN21, CJ1W-ETN21 OPERATION MANUAL

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Cat. No. W420-E1-06

SYSMAC CS and CJ Series CS1W-ETN21 (100Base-TX) CJ1W-ETN21 (100Base-TX)

Ethernet Units Construction of Networks

OPER ATION MANUAL

CS1W-ETN21 (100Base-TX) CJ1W-ETN21 (100Base-TX) Ethernet Units Construction of Networks

Operation Manual

Revised April 2009

Notice:

r f

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

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

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

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

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

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

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

moderate injury, or property damage.

OMRON Product References

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

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

The abbreviation “PLC” means Programmable Controller. “PC” is used, however, in some Programming Device displays 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.

 OMRON, 2003

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

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

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

tion of the product.

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

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

Confirming Unit Versions with Support Software

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.

Product nameplate

CS1W-

UNIT

Lot No.

Lot No. 040401 0000 Ver.1.3

OMRON Corporation MADE IN JAPAN

Unit version Example for unit version 1.3

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. 2.0 Units cannot be confirmed Unit Manufac-

turing Information. The following dialog box is displayed.

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

The following Unit Manufacturing information Dialog Box will be displayed.

Unit version

Use the above display to confirm the unit version of the Unit connected online.

Using Unit Version Label The following unit version label is provided with the Ethernet Unit.

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

Unit Version Notation In this manual, the unit version of a Ethernet Unit is given as shown in the fol-

lowing table.

Product nameplate Notation used in this manual Special remarks

Ver. 2.0 or later number shown to right of the lot number

Blank to the right of lot number

Ethernet Unit Ver. 1.3 or later Information without reference to specific Unit

Versions applies to all versions of the Unit

Pre-Ver. 1.3 Ethernet Units

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TABLE OF CONTENTS

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

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

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

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

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

SECTION 1

Features and System Configuration . . . . . . . . . . . . . . . . . . . . . 1

1-1 Ethernet Unit Function Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1-4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-5 Overview of Communications Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-6 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1-7 Comparison with Previous Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1-8 Unit Version Upgrade Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SECTION 2

Installation and Initial Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2-1 Overview of Startup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2-3 Mounting to a PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2-4 Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

2-5 Connecting to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2-6 Creating I/O Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

2-7 Unit Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2-8 Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

2-9 Unit Setup for Particular Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-10 Communications Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2-11 Converting from Previous Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

SECTION 3

CX-Programmer Unit Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3-1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3-2 FINS/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-3 DNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-4 SMTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3-5 POP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

3-6 Mail Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-7 Send Mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

3-8 Receive Mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

TABLE OF CONTENTS

3-9 Auto Adjust Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

3-10 HTTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

SECTION 4

Ethernet Unit Memory Allocations. . . . . . . . . . . . . . . . . . . . . . 77

4-1 CIO Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

4-2 DM Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

4-3 Auxiliary Area Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

SECTION 5

Determining IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

5-1 IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

5-2 IP Addresses in FINS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

5-3 Private and Global Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

SECTION 6

FINS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

6-1 Overview of FINS Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

6-2 FINS/UDP Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

6-3 FINS/TCP Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

6-4 Creating Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

6-5 Using FINS Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

6-6 Communicating between OMRON PLCs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

6-7 Precautions on High Traffic in FINS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

SECTION 7

FINS Commands Addressed to Ethernet Units. . . . . . . . . . . . 157

7-1 Command Codes and Response Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

7-2 Socket Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

7-3 Command/Response Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

SECTION 8

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

8-1 Troubleshooting with Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

8-2 Error Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

8-3 Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

8-4 Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

8-5 Results Storage Area Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

TABLE OF CONTENTS

Appendices

A Ethernet Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

B Buffer Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

C TCP Status Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

D ASCII Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

E Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

F Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

G Ethernet Unit Web Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

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About this Manual:

This manual describes the installation and operation of the CS1W-ETN21 and CJ1W-ETN21 Ethernet Units (100Base-TX) 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 Unit. Be sure to read the precautions provided in the following section.

Precautions provides general precautions for using the CS1W-ETN21 and CJ1W-ETN21 Ethernet Units (100Base-TX).

Section 1 introduces the features, describes the system configuration and Unit parts, and provides Unit specifications.

Section 2 explains how to install the Ethernet Unit and make the initial settings required for operation.

Section 3 provides information for setting communications using CX-Programmer.

Section 4 describes the words allocated in the CIO Area and the DM Area for Ethernet Units.

Section 5 explains how to manage and use IP addresses.

Section 6 provides information on communicating on Ethernet Systems and interconnected networks

using FINS commands.

Section 7 describes the FINS commands that can be sent to an Ethernet Unit and the responses that are returned by the Ethernet Unit.

Section 8 describes information and procedures that can be used to troubleshoot problems that sometimes occur with Ethernet Unit and Ethernet communications.

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

The related Ethernet Units Operation Manual Construction of Applications (W421) provides the following information.

Section Contents

Section 1 Overview of functions for constructing applications. Section 2 Information on using mail functions to automatically send I/O memory data from

OMRON PLCs to personal computers.

Section 3 Information on using mail functions to send commands from OMRON PLCs to per-

sonal computers.

Section 4 Information on transferring large files between personal computers and OMRON

Section 5 Information on automatically adjusting the OMRON PLC’s built-in clock. Section 6 Information on communicating between general applications (applications not using

Section 7 Information on using personal computer and UNIX machine socket interfaces to cre-

PLCs.

FINS) and OMRON PLCs.

ate applications using FINS communications.

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Relevant Manuals

The following table lists CS and CJ-series manuals that contain information relevant to Ethernet Units.

Manual

number

W420

W421 CS1W-ETN21

W343

W342

W339

W393

W394 CS1G/H-CPU@@H

W340

CS1W-ETN21 CJ1W-ETN21

CJ1W-ETN21

CS1W-ETN01 CS1W-ETN11 CJ1W-ETN11

CS1G/H-CPU@@H CS1G/H-CPU-@@EV1 CS1D-CPU@@H CS1D-CPU@@S CJ1M-CPU@@ CS1W-SCU21-V1 CS1W-SCB21-V1/41-V1 CJ1G/H-CPU@@H CJ1G-CPU@@P CJ1G-CPU@@ CJ1W-SCU21-V1/41-V1

CS1G/H-CPU@@H CS1G/H-CPU@@-EV1

CJ1G/H-CPU@@H CJ1G-CPU@@P CJ1M-CPU@@ CJ1G-CPU@@

CS1G/H-CPU@@EV1 CS1D-CPU@@H CS1D-CPU@@S CJ1G/H-CPU@@H CJ1G-CPU@@P CJ1G-CPU@@ CJ1M-CPU@@

CS1G/H-CPU@@H CS1G/H-CPU@@EV1 CS1D-CPU@@H CS1D-CPU@@S CJ1G/H-CPU@@H CJ1G-CPU@@P CJ1G-CPU@@ CJ1M-CPU@@

Model Name Contents

Ethernet Units Operation Manual Construction of Networks

(this manual)

Ethernet Units Operation Manual Construction of Applications

Ethernet Units Operation Manual

Communications Commands Reference Manual

Programmable Controllers Operation Manual

Programmable Controllers Programming Manual

Programmable Controllers Instructions Reference Manual

Provides information on operating and installing 100Base-TX Ethernet Units, including details on basic settings 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.

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 and CJ-series 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 and CJ-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 Programmable Controllers Programming Manual (W394).

xiv

Manual

number

W446 WS02-CXPC@-V8 CX-Programmer

W444 CXONE-AL@@C-E CX-One Setup Man-

W445 CXONE-AL@@C-E CX-Integrator Opera-

W341

W336

CQM1H-PRO01-E CQM1-PRO01-E C200H-PRO27-E

CS1W-SCB21-V1/41-V1 CS1W-SCU21-V1 CJ1W-SCU21-V1/41-V1

Model Name Contents

Ver. 8.0 Operation Manual

ual

tion Manual

Programming Consoles Operation Manual

Serial Communications Boards and Serial Communications Units Operation Manual

Provides information on how to use the CX-Programmer, a Windows-based programming device, and CX-Net, a Windows-based network configuration tool.

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

Manual (W394) and the Programmable Controllers Instructions Reference Manual (W340) to perform pro-

gramming. Describes operating procedures for the CX-One FA Inte-

grated Tool Package. Refer to this manual for operating procedures for the CX-

One FA Integrated Tool Package. Describes operating procedures for the CX-Integrator net-

work configuration support software for CS/CJ-series PLCs.

Refer to this manual for operating procedures for the CXIntegrator network configuration support software for CS/ CJ-series PLCs.

Provides information on how to operate the Programming Console.

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

Manual (W394) and the Programmable Controllers Instructions Reference Manual (W340) to perform pro-

gramming. Accessing the PLC connected to the CX-Programmer via

Ethernet or the host computer or other device connected to the Serial Communications Board or Unit.

Describes the use of Serial Communications Units and Boards, including details on hardware, software, and standard system protocols.

!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.

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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.

xvii

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.

xviii

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.

xix

PRECAUTIONS

This section provides general precautions for using the CS1W-ETN21 and CJ1W-ETN21 Ethernet Units (100Base-TX).

The information contained in this section is important for the safe and reliable application of Ethernet Units. You must read this section and understand the information contained before attempting to set up or operate an Ethernet Unit.

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

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

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

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

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 applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PLC System to the above-mentioned applications.

3 Safety Precautions

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

so may result in electric shock.

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

supplied. Doing so may result in electric shock.

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

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

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

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

xxii

Operating Environment Precautions 4

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

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

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

4 Operating Environment Precautions

!Caution Do not operate the control system in the following 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 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.

5 Application Precautions

Observe the following precautions when using the Ethernet Unit.

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

could lead to serious or possibly fatal injury.

• Always connect to a ground of 100 connecting to a ground of 100

Ω or less when installing the Units. Not

Ω or less may result in electric shock.

xxiii

Application Precautions 5

• Always turn OFF the power supply to the CPU Unit, Slaves, and Communications Units before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock.

• Mounting or dismounting 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.

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

the Ethernet Unit or the system, or could damage the Ethernet Unit. Always heed these precautions.

• 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.

• 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.

• Do not install the Unit near devices that generate strong high-frequency noise.

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

• Make sure that all the Backplane mounting 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 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.

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

• Wire all connections correctly.

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

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

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

xxiv

Conformance to EC Directives 6

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

• Observe the following precautions when wiring the communications cable.

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

• Do not bend the communications cables past their natural bending radius.

• 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.

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

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

• Changing the operating mode of the PLC (including the setting of the startup operation mode).

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

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

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

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

Note Applicable EMS (Electromagnetic Susceptibility) and EMI (Electromagnetic

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

Unit/Board EMS EMI

CS1W-ETN21 CJ1W-ETN21

EN61000-6-2

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

xxv

Conformance to EC Directives 6

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).

xxvi

SECTION 1

Features and System Configuration

This section introduces the features, describes the system configuration and Unit parts, and provides Unit specifications.

1-1 Ethernet Unit Function Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Overall System Configuration Example . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 Determining the Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1-3-1 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1-3-2 Devices Required for Constructing a Network . . . . . . . . . . . . . . . . . 11

1-3-3 Setup Area and Related Peripheral Devices . . . . . . . . . . . . . . . . . . . 12

1-4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-4-1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-4-2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1-4-3 Software Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1-5 Overview of Communications Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-5-1 FINS Communications Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-5-2 Socket Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1-5-3 FTP Server Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1-5-4 Mail Send Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1-5-5 Mail Receive Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1-5-6 Automatic Clock Adjustment Function . . . . . . . . . . . . . . . . . . . . . . 22

1-5-7 Specifying Servers by Host Name . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1-6 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1-6-1 Component Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1-6-2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

1-7 Comparison with Previous Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1-8 Unit Version Upgrade Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Ethernet Unit Function Guide Section 1-1

1-1 Ethernet Unit Function Guide

1-1-1 Overall System Configuration Example

The following diagram shows an example of an overall system configuration using Ethernet Units.

(1) Connecting the CX-Programmer to the PLCs online via Ethernet

CX-Programmer Mail software

Mail FINS

Mail

IP router

Firewall

(3) Capturing PLC changes

and sending the status of equipment to an operator

(7) Automatically adjusting the

PLC's internal clock periodically

Internet

Server Room

Router

(4) Receiving mail (data, files) at

PLCs

Receiving mail

Writing commands

Sending mail

DNS server POP3 server SMTP server SNTP server

Ethernet

(5) Transferring large data files between

Intranet

Router

Ethernet Unit Ethernet Unit

PLC PLC

FINS message communications

(2) Sending and receiving data via Ethernet

between OMRON PLCs

personal computers and PLCs

FTP software Mail software

Large files

(Factory line)

Ethernet

FTP

Memory Card

(6) Configuring an independent communications protocol

for the host application using TCP/IP (UDP/IP)

Office Floor

CX-Programmer SCADA software PLC Reporter, Compolet FinsGateway (communications driver)

Ethernet

FINS

FINS message communications

Wireless

FINS

NS-series PT

Independent user application

UDP/TCP socket

(1) Connecting the CX-Programmer to

PLCs online via Ethernet

CX-Programmer

FINS

1-1-2 Determining the Objectives

Connecting the CX-Programmer to PLCs Online via Ethernet

Connecting within the Same Segment

Use the UDP/IP version of the FINS communications service (i.e., FINS/ UDP). FINS/UDP is supported by many OMRON products and is compatible with earlier Ethernet Units (CS1W-ETN01/ETN11 and CJ1W-ETN11). The CX-Programmer can be connected and used with FINS/UDP even if personal computer middleware (FinsGateway) is not used. FinsGateway (any version) can also be used together with the CX-Programmer.

Ethernet Unit Function Guide Section 1-1

Connecting through Multiple Segments

Using Media with Unreliable Connections, Such as a Wireless LAN

Connecting from a Personal Computer with a Dynamic Private IP Address

Use the TCP/IP version of the FINS communications service (i.e., FINS/TCP). FINS/TCP is a new function supported by these Ethernet Units (CS1WETN21 and CJ1W-ETN21). It provides automatic recovery at the TCP/IP layer from communications errors (such as packet loss) that occur during multilevel routing. For CX-Programmer (version 4.0 or higher), FINS/TCP can be used to directly connect to the PLC online. To use lower versions of the CX-Programmer with FINS/TCP, use FinsGateway (version 2003 or higher) as personal computer middleware.

Use the TCP/IP version of the FINS communications service (i.e., FINS/TCP). FINS/TCP is a new function supported by these Ethernet Units (CS1WETN21 and CJ1W-ETN21). It provides automatic recovery at the TCP/IP layer from communications errors (such as packet loss) resulting from unreliable connections. For CX-Programmer (version 4.0 or higher), FINS/TCP can be used to directly connect to the PLC online. To use lower versions of the CXProgrammer with FINS/TCP, use FinsGateway (version 2003 or higher) as personal computer middleware.

Depending on whether or not the connection will be within the same segment, either use an IP address conversion method for dynamic IP addresses in the UDP/IP version of the FINS communications service or use the TCP/IP version of the FINS communications service.

It is possible to connect online to a PLC using the CX-Programmer from a computer serving as a temporarily connected node or a permanent DHCP client.

For CX-Programmer (version 4.0 or higher), FINS/TCP can be used to directly connect to the PLC online. To use lower versions of the CX-Programmer with FINS/TCP, use FinsGateway (version 2003 or higher) as personal computer middleware.

Ethernet Unit Function Guide Section 1-1

Connecting through multiple segments, such as over the Internet: Use FINS/TCP.

CX-Programmer

FINS

Internet

IP router

Firewall

Router

(Server room)

DNS server POP3 server SMTP server SNTP server

Intranet

Router

Connecting from a computer with a dynamic private IP address: Use FINS/TCP or FINS/UDP.

(Office floor)

CX-Programmer

FINS

EthernetEthernet

(Production line)

Ethernet

Ethernet Unit Ethernet Unit

CX-Programmer

PLC

FINS

Wireless

Reference SECTION 6 FINS Communications

Exchanging Data between OMRON PLCs using Ethernet

Connecting within the Same Segment

Use the UDP/IP version of the FINS communications service (i.e., FINS/ UDP), and construct applications using the SEND(090), RECV(098), and CMND(490) instructions in the ladder program. FINS/UDP is supported by many OMRON products, and is compatible with earlier Ethernet Units (CS1WETN01/ETN11 and CJ1W-ETN11). The protocol processing for FINS/UDP is simpler than for FINS/TCP, giving FINS/UDP certain advantages in terms of performance. Another feature of FINS/UDP is that it can be used for broadcasting.

On the other hand, with FINS/UDP it is necessary to provide measures, such as retries, for handling communications errors.

Connecting within the same segment: Use FINS/UDP.

CX-Programmer

Using media with unreliable connections, such as wireless

FINS

LAN: Use FINS/TCP.

Connecting through Multiple Segments

Use the TCP/IP version of the FINS communications service (i.e., FINS/TCP), and construct applications using the SEND(090), RECV(098), and CMND(490) instructions in the ladder program. FINS/TCP is the initial function supported by this Ethernet Unit (CS1W-ETN21 and CJ1W-ETN21). It provides automatic recovery at the TCP/IP layer from communications errors (such as packet loss) that occur during multilevel routing.

Ethernet Unit Function Guide Section 1-1

Intranet

Production line A

Ethernet Unit

Ethernet

Router

Mail communications

FINS message communications

Ethernet Unit

Connecting within the same segment: Use FINS/UDP.

Router

Connecting through multiple segments: Use FINS/TCP.

Production line B

PLC

FINS message communications

Ethernet Unit

PLC

Memory Card

Reference SECTION 6 FINS Communications

Monitoring PLC Changes and Sending Equipment Status to the Operator by E-mail

Operation When the mail send function is used, automatic communications applications

via the Internet can be constructed relatively easily. With this Ethernet Unit, the following mail triggers can be set as PLC changes. When these settings can be used, no special ladder program is required for sending e-mail.

• When a particular bit (the Mail Send Switch) turns ON

• When values change in particular words (=, <>, <, <=, >=, >)

• When a particular bit changes (either OFF to ON or ON to OFF)

• When a change occurs at the Ethernet Unit (stored in error log)

• When a change occurs at the CPU Unit (e.g., a non-fatal error, a fatal error, or a mode change)

• At regular intervals

The following data can be sent by e-mail:

• Text (user-created text strings (ASCII data), Ethernet Unit error log data, and status data)

• Attached files (IOM data created automatically by the Ethernet Unit, data tables, and files in File Memory)

To use the mail send function, there must be a separate SMTP server on the network. When using the SMTP server of an Internet Service Provider (ISP), security measures, such as POP before or SMTP, may be required. (This Unit handles POP before SMTP.) In addition to the IP address, the host name used for the DNS service can be specified for the SMTP/POP3 server.

Ethernet Unit Function Guide Section 1-1

Mail software

Receiving e-mail

E-mail

Internet

IP router

Intranet

(Office floor)

Router

(Production line)

Ethernet Unit

PLC's I/O memory data sent as attached file

Receiving e-mail

Mail software

Router

Sending e-mail

(Server room)

Ethernet

Firewall

Monitoring PLC changes and sending equipment status to the operator by e-mail

DNS server POP3 server SMTP server SNTP server

Ethernet Ethernet

Reference SECTION 2 Mail Send Function in the Operation Manual Construction of

Applications

Receiving E-mail (Data and Files) at the PLC

Operation Use the mail receive function.

When the mail receive function is used, the PLC can be accessed through a mail address, enabling remote applications via the Internet to be constructed relatively easily. With the mail receive function, any of the following remote commands can be specified as e-mail subjects.

• FileWrite (File Write)

• FileRead (File Read)

• FileDelete (File Delete)

• FileList (File List Read)

• UMBackup (User Memory Backup)

• PARAMBackup (Parameter Area Backup)

• IOMWrite (I/O Memory Write)

• IOMRead (I/O Memory Read)

To use the mail receive function, there must be a separate POP3 server on the network. Aside from the IP address, the host name used for DNS service can be specified for the POP3 server.

• ChangeMode (Operating Mode Change)

• ErrorLogRead (Error Log Read)

• ErrorLogClear (Error Log Clear)

• MailLogRead (Mail Log Read)

• MailLogClear (Mail Log Clear)

• Test (Mail Test)

• FinsSend (FINS Command Send)

Ethernet Unit Function Guide Section 1-1

Mail software

Sending e-mail

Internet

IP router

Firewall

(Server room)

Intranet

(Office floor)

Router

Writing command File attachment enabled

Receiving e-mail

Receiving e-mail at the PLC

DNS server POP3 server SMTP server SNTP server

Ethernet

Writing command File attachment enabled

Ethernet

Sending e-mail

Router

(Production line)

Ethernet Unit

Mail software

Ethernet

Reference SECTION 3 Mail Receive Function in the Operation Manual Construction of

Applications

Exchanging Large Files between a Personal Computer and PLC

Operation Use the FTP server function.

The FTP server function makes it possible to log in to the Ethernet Unit from a computer (FTP client) as required, and to specify folders and files to be transferred. The following items can be used as PLC File Memory.

• A Memory Card (mounted to the CPU Unit)

• EM File Memory (The portion of the EM Area in the CPU Unit's I/O memory used by the CX-Programmer as File Memory)

Reference SECTION 4 FTP Server Function in the Operation Manual Construction of

Applications

Creating an Original Communications Procedure Using TCP/IP (UDP/IP) for the Host Application or Communicating with PLCs from Another Manufacturer

Operation Using the socket services function, create a communications application in

the ladder program. With the socket services function, TCP/IP or UDP/IP can be used directly to

receive data. Use the socket services to create applications based on manipulating control bits or the CMND(490) instruction.

Reference SECTION 4 Socket Service Function in the Operation Manual Construction of

Applications

Fe at ur e s Section 1-2

Automatically Adjusting the PLC's Internal Clock at Regular Intervals

Operation Use the automatic clock adjustment function.

With the automatic clock adjustment function, the SNTP server's clock is taken as the standard for automatically adjusting the built-in clock of the PLC connected to the Ethernet Unit. The adjustment can be regularly executed at a specified time (once a day) and it can be executed each time by the ladder program.

To use the automatic clock adjustment function, there must be a separate SNTP server on the network. Aside from the IP address, the host name used for DNS service can be specified for the SNTP server.

Reference SECTION 5 Automatic Clock Adjustment Function in the Operation Manual

Construction of Applications

1-2 Features

Compatibility and Speed

The transmission medium has been upgraded to 100Base-TX, while compatibility with the functions and application interfaces of the existing Ethernet Unit models (CS1W-ETN01, CS1W-ETN11, and CJ1W-ETN11) has been maintained. Moreover, processing speed has been improved so that the system response performance for the same FINS message applications is now up to four times faster.

Various Protocols Available on Ethernet

A variety of protocols makes available a wide range of applications for use on an Ethernet network. The protocols that can be selected include sending and receiving data by TCP/IP or UDP/IP (socket services), sending and receiving commands by OMRON's standard protocol FINS, transferring files by FTP, sending and receiving e-mail by SMTP/POP3, and automatically adjusting the PLC's internal clock by SNTP.

A communications service can be selected according to need, allowing the PLC to be flexibly integrated with the Ethernet information network.

Communications by UDP/IP and TCP/IP (Socket Services Function)

The standard Ethernet protocols, UDP/IP and TCP/IP, are supported, making it possible to communicate with a wide range of devices, workstations, computers, and Ethernet Units from other manufacturers.

Up to eight ports can be used for various protocols, enabling the use of various applications.

Simplified Socket Services

Without using the CMND(490) instruction, the socket services function for TCP or UDP can be simplified by presetting parameters and using dedicated bits. In addition, the size of received data accumulated in the reception buffer is now stored, and a Data Received Flag has been added. These new features eliminate the need for ladder programs to monitor the timing for completion of instructions and socket service processing, and thus reduce the amount of labor required for program development.

Fe at ur e s Section 1-2

Starting with unit version 1.5, the performance of sending and receiving has been improved using optional settings for the TCP or UDP socket services using specific bits in memory. Also, a linger socket option has been added to the TCP socket services. Specifying this option enables open processing immediately with the same port number without having to wait (approximately 1 min.) until the port number opens after the socket closes.

Improved FINS Message Communications

The following functions have been improved over previous Ethernet Unit models. They allow the scale of the system to be increased, and can give greater flexibility to the system configuration including the host computer.

• Expanded number of nodes (to 254 max., from 126 max.)

• Communications are now enabled even if the host computer's IP address is dynamic. (DHCP client computers can be handled, including TCP/IP and UDP/IP.)

→ Previously IP addresses for host computers could be fixed only. → For Ethernet Units with Unit Ver. 1.3 or later, the Unit can be protected

against access from nodes with dynamically changed IP addresses (set to be fixed only).

• An automatic client FINS node address allocation function now makes it possible to connect online to the PLC even if no FINS node address has been set for the host computer.

→ Previously online connection to the PLC was possible only after a FINS

node address was set for the host computer.

• FINS message communications are now enabled in TCP/IP (with up to 16 simultaneous connections), so a system can now utilize FINS message communications in both UDP/IP and TCP/IP.

→ Previously only UDP/IP could be used.

• Multiple FINS applications (such as the CX-Programmer) on the same computer can now be connected online to the PLC via Ethernet (in either TCP/IP or UDP/IP).

→ Previously when one FINS application on a computer was connected

online to the PLC, it was impossible to connect any other at the same time.

Transferring Data Files between Host Computers (FTP Server Function)

A built-in FTP server function enables data files in the PLC to be read from a workstation or computer with an FTP client function, and for data to be written to the PLC. Large amounts of data can be transferred at a time from clients, without requiring ladder programming.

Additional E-mail Functions

With previous Ethernet Unit models (CS1W-ETN01/CS1W-ETN11/CJ1WETN11), e-mail could sent only from the Ethernet Unit, and the data that could be sent was limited to user-created ASCII text data and system data. Now the following e-mail functions have been added.

Mail Receive Function (Receiving Commands for the PLC by E-mail)

E-mail File Attachment Function

Commands for the PLC (mail remote commands) can be written into e-mail, and the Ethernet Unit can receive them, execute them, and send responses by e-mail.

This function can be linked to the CS/CJ File Memory function.

Fe at ur e s Section 1-2

• The Ethernet Unit can automatically generate data files (6,000 words maximum per file) from the CPU Unit's I/O memory status, and send them to specified e-mail addresses as e-mail attachments. It can also send program files from the Memory Card (up to 1 MB) to specified e-mail addresses as e-mail attachments.

• In addition to using the existing Mail Send Switch, or having e-mail sent at regular intervals, it is possible to set triggers for sending e-mail (for example, by having e-mail sent when a PV in the CPU Unit's I/O memory reaches a certain value (size comparison), or when the bit at a specified address turns ON).

• Up to eight of these e-mail send conditions (destination, trigger type, etc.) can be preregistered so that e-mail will be sent automatically whenever the conditions are met.

Note The e-mail functions require a separate mail server (SMTP/POP3).

Automatic PLC Internal Clock Adjustment

The built-in clock of the PLC connected to the Ethernet can be automatically adjusted, with the SNTP server clock taken as the standard. Automatic adjustments through the entire system enable the various records generated by production equipment to be managed according to clock information and analyzed.

Note The automatic clock adjustment requires a separate SNTP server.

Specification of Servers by Host Name

In addition to directly specifying the IP address for a SMTP, POP3, or SNTP server, it is also possible (by means of the Ethernet Unit's DNS client function) to specify the server by host name. This enables automatic searches for IP addresses for purposes such as system checking, even when the IP addresses for servers have been changed.

Note (1) A separate DNS server is required to specify servers by host name using

DNS.

(2) The IP address is specified directly for the DNS server.

Classless IP Address Settings Using CIDR

Starting from unit version 1.5, it is possible to use classless inter-domain routing (CIDR) by specifying the subnet class using an option setting. This enables greater flexibility in specification by eliminating the need to have the network ID component of the IP address be dependent on the class.

Use Web Function to Read Ethernet Unit Settings and Status

A Web function is provided in Ethernet Units with Unit Ver. 1.3 or later. This enables use of a Web browser to read the Ethernet Unit’s system settings and statuses.

Network Connection with Controller Link

The Ethernet information network can be connected to the Controller Link control system network by using the FINS communications service function. This enables a PLC on a Controller Link network to be monitored from a PLC on an Ethernet network, and it allows data to be exchanged between them.

System Configuration Section 1-3

Full Range of Functions for Handling Troubles

A full range of functions is provided for promptly handling any troubles that may arise.

• Self-diagnostic function when power is turned ON

• Remote node connection check by PING command

• Remote node connection check by internode test

• Error log for recording error information when an error occurs

• Notification by e-mail when an error occurs

1-3 System Configuration

1-3-1 System Configuration

CX-Programmer

CX-Integrator

FinsGateway

(3) Hub

100 m max.

(2) Twisted-pair cable

(1) CS1W-ETN21

Ethernet Unit (100Base-TX)

CS-series PLC

1-3-2 Devices Required for Constructing a Network

The basic configuration for a 100Base-TX Ethernet System consists of one hub to which nodes are attached in star form using twisted-pair cable.

The devices shown in the following table are required to configure a network with 100Base-TX-type CS1W-ETN21 and CJ1W-ETN21 Ethernet Units, so prepare them in advance.

Network device Contents

(1) CS-series Ethernet

Units (CS1W-ETN21) or CJ-series Ethernet Units (CJ1W-ETN21)

(2) Twisted-pair cable This is twisted-pair cable for connecting 100Base-TX-type

(3) Hub This is a relay device for connecting multiple nodes in a

These Ethernet Units are Communications Units that connect a CS-series or CJ-series PLC to 100Base-TX Ethernet networks. (They can also be used as 10Base-T.)

Ethernet Units to the hub, with an RJ45 Modular Connector at each end.

Use a category 3, 4, 5, or 5e UTP (unshielded twistedpair) or STP (shielded twisted-pair) cable.

star LAN.

(1) CJ1W-ETN21

Ethernet Unit (100Base-TX)

CJ-series PLC

Recommended Hubs For details on recommended devices for constructing a network, refer to 2-4

Network Installation.

System Configuration Section 1-3

1-3-3 Setup Area and Related Peripheral Devices

Making Settings in the CPU Bus Unit System Setup Area (with the CXProgrammer)

For the Ethernet Unit to function as a node on an Ethernet network, make the settings, as required, in the CPU Bus Unit System Setup Area allocated in non-volatile memory in the CPU Unit.

Use the CX-Programmer to make the settings (by connecting online from the I/O Table Window, selecting the Ethernet Unit, and then selecting Unit Setup). Each time the Ethernet Unit is turned ON or restarted, it reads and uses the contents of the CPU Bus Unit System Setup Area as the settings for the communications services.

If setting items for expanded functionality of the Ethernet Unit are not displayed, make the settings after updating the Support Software using an auto update or by using the Web function of the Ethernet Unit.

Personal computer running Windows CX-Programmer

Unit Setup

Ethernet Unit

CPU Bus Unit System Setup Area

CS/CJ-series CPU Unit

Making Settings in the Routing Table Area (with CX-Integrator)

Middleware for FINS Communications Applications on a Personal Computer (FinsGateway)

OMRON Communications Units use OMRON's original FINS network system. Make the settings for the FINS network and the relay path, as required, in the Routing Table Area allocated to the non-volatile memory in the CPU Unit.

Use CX-Integrator to make the settings. (CX-Integrator is software that comes with the CX-One and is automatically installed when the CX-One is installed.) Each time the Ethernet Unit is turned ON or restarted, it reads the contents of the Routing Table Area as the settings for FINS network.

Personal computer running Windows CX-Integrator

Routing table settings

Ethernet Unit

Routing Table Area

CS/CJ-series CPU Unit

FinsGateway can be used as middleware when constructing communications applications on a personal computer for a FINS network, using Visual C++ or Visual BASIC. The CX-Programmer and CX-Integrator can also be connected online through FinsGateway. When FINS/UDP is used in the FINS communications service, all versions of FinsGateway can be used.

When FINS/TCP is used in the FINS communications service, only FinsGateway Version 2003 or higher can be used.

System Configuration Section 1-3

When the CX-Programmer and CX-Integrator are connected online by FINS/ TCP, FinsGateway Version 2003 or higher must be used.

For CX-Programmer Ver. 4.0 or higher, FINS/TCP can be used to directly connect to the PLC online.

Personal computer running Windows

User-created software

FinsGateway

CX-Programmer

Windows

Ethernet Uni

CS/CJ-series CPU Unit

Specifications Section 1-4

1-4 Specifications

1-4-1 General Specifications

CS-series Ethernet Unit

Item Specifications

Model number CS1W-ETN21 Type 100Base-TX (Can be used as 10Base-T) Applicable PLCs CS-series PLCs Unit classification CS-series CPU Bus Unit Mounting location CPU Rack or Expansion Rack Number of Units that can be mounted 4 max. (including Expansion Racks) Tr an s fe r

specifications

Current consumption (Unit) 380 mA max. at 5 V DC Weight 200 g max. Dimensions 35 × 130 × 101 mm (W × H × D) Other general specifications Conform to general specifications for the SYSMAC CS Series.

Media access method CSMA/CD Modulation method Baseband Transmission paths Star form Baud rate 100 Mbit/s (100Base-TX) 10 Mbit/s (10Base-T) Transmission media Unshielded twisted-pair (UDP) cable

Categories: 5, 5e Shielded twisted-pair (STP) cable Categories: 100 Ω at 5, 5e

Transmission distance 100 m (distance between hub and node) Number of cascade con-

nections

No restrictions if switching hubs are used.

Unshielded twisted-pair (UDP) cable Categories: 3, 4, 5, 5e Shielded twisted-pair (STP) cable Categories: 100 Ω at 3, 4, 5, 5e

CJ-series Ethernet Unit

Item Specifications

Model number CJ1W-ETN21 Type 100Base-TX (Can be used as 10Base-T) Applicable PLCs CJ-series PLCs Unit classification CJ-series CPU Bus Unit Mounting location CPU Rack or Expansion Rack Number of Units that can be mounted 4 max. (including Expansion Racks) Tr an s fe r

specifications

Current consumption (Unit) 370 mA max. at 5 V DC Weight 100 g max. Dimensions 31 × 90 × 65 mm (W × H × D) Other general specifications Conform to general specifications for the SYSMAC CJ Series.

Media access method CSMA/CD Modulation method Baseband Transmission paths Star form Baud rate 100 Mbit/s (100Base-TX) 10 Mbit/s (10Base-TX) Transmission media Unshielded twisted-pair (UDP) cable

Categories: 5, 5e Shielded twisted-pair (STP) cable Categories: 100 Ω at 5, 5e

Transmission distance 100 m (distance between hub and node) Number of cascade con-

nections

No restrictions if switching hubs are used.

Unshielded twisted-pair (UDP) cable Categories: 3, 4, 5, 5e Shielded twisted-pair (STP) cable Categories: 100 Ω at 3, 4, 5, 5e

Specifications Section 1-4

1-4-2 Dimensions

CS1W-ETN21

CJ1W-ETN21

130

ETN21

RUN ERC

SD RD

LNK

NODE

NO.

100BASE-TX

Front

UNIT

×16

10BASE-T

NO.

100M ERH TCP FTP HOST

×16

10135

(Unit: mm)

Back

• Unit Version 1.5 or Later

90 2.72.7

ETN21

RUN ERC SD RD

ERH TCP FTP HOST100M

100BASE-TX

10BASE-T

x16

LINK

UNIT

No.

NODE

No.

x16

• Unit Version 1.4 or Earlier

90 2.72.7

ETN21

RUN ERC SD RD

ERH TCP FTP HOST100M

100BASE-TX

10BASE-T

LINK

UNIT

No.

NODE

No.

x16

(Unit: mm)

Specifications Section 1-4

1-4-3 Software Configuration

The software supported by the Ethernet Unit runs in the layers shown in the following diagram. The components that form the various layers are defined below the diagram.

11. SMTP

CS/CJ-series CPU Unit

FINS communi-

Socket services

FINS/UDP

5. UDP

cation service

7. FINS

2. IP

1. Ethernet (Ver. 2.0)

1,2,3... 1. Ethernet (Ver. 2.0)

The Version 2.0 Ethernet frame format is used for communications.

2. IP (Internet Protocol) Transfers datagrams to destination nodes using IP addresses.

3. ICMP (Internet Control Message Protocol) Supports IP communications by signalling errors in data transfers.

4. ARP (Address Resolution Protocol) Determines the Ethernet address (i.e., physical address) by broadcasting based on the target IP address.

5. UDP (User Datagram Protocol) Performs data communications. Data resends, priority control, flow control, and other measures to ensure communications reliability are not performed for UDP communications, so the transmitted data may not arrive at the destination node. To increase reliability, it is necessary to program special measures into the user applications.

6. TCP (Transmission Control Protocol) Performs communications after establishing a connection (i.e., a virtual circuit) with the destination node, providing a highly reliable communications service.

7. FINS (Factory Interface Network Service) A protocol that sends messages between PLCs on any of various OMRON FA networks. To ensure that transmitted messages arrive at the destination node, it is necessary to program special measures such as retry processing into the user's applications.

8. FTP (File Transfer Protocol) Transfers data files.

9. SMTP (Simple Mail Transfer Protocol) A communications protocol for sending e-mail by TCP/IP.

10. POP3 (Post Office Protocol Ver. 3.0) A communications protocol for receiving e-mail by TCP/IP.

11. SNTP (Simple Network Time Protocol) A communications protocol for automatic clock adjustment by UDP/IP.

12. DNS (Domain Name System) A communications protocol for determining IP address names according to UDP/IP and TCP/IP.

FINS/TCP

Socket services

3. ICMP 4. ARP

E-mail transmission

6. TCP

E-mail reception

10. POP3

Memory Card /

EM File Memory

FTP

8. FTP server9. SMTP

CS/CJ-series CPU Unit

Ethernet Unit

Overview of Communications Functions Section 1-5

1-5 Overview of Communications Functions

1-5-1 FINS Communications Service

Basic Functions FINS commands can be sent to or received from other PLCs or computers on

the same Ethernet network by executing SEND(090), RECV(098), or CMND(490) instructions in the ladder diagram program. This enables various control operations such as the reading and writing of I/O memory between PLCs, mode changes, and file memory operations.

Ethernet

UDP or TCP

CS/CJ-series CPU Unit

Ethernet Unit Ethernet Unit Ethernet Unit

FINS IP FINS

UDP or TCP

User program

SEND(090),

RECV(098), or

CMND(490)

instruction

Executing, from the host computer, FINS commands with UDP/IP or TCP/IP headers enables various control operations, such as the reading and writing of I/O memory between PLCs, mode changes, and file memory operations.

For example, it is possible to connect online via Ethernet from FINS communications applications such as the CX-Programmer, and to perform remote programming and monitoring. (See note.)

Note Use CX-Programmer version 4.0 to use TCP/IP. For lower versions of CX-Pro-

grammer, FinsGateway Version 2003 or higher is required to use TCP/IP.

Ethernet

UDP or TCP

FINS

CS/CJ-series CPU Unit

Ethernet Unit

The FINS gateway function enables access to PLCs on not only the same Ethernet network but on various other networks, including SYSMAC LINK and Controller Link.

Upgraded Functions With the CS1W-ETN21 and CJ1W-ETN21, the following functions have been

upgraded.

• The FINS communications service can be executed not only with UDP/IP but also with TCP/IP, and it is even possible to use FINS communications with both UDP/IP and TCP/IP together on the same network. Using TCP/ IP makes FINS communications highly reliable.

Overview of Communications Functions Section 1-5

• Even if the IP address and UDP port number of the host computer (a DHCP client computer) are changed, it is still possible for the host computer to send FINS commands to PLCs on the Ethernet network and to receive responses. When UDP is used, either the automatic generation (dynamic) method or the IP address table method must be selected for IP address conversion. When TCP is used, changes in IP address and TCP port numbers are handled automatically.

• Multiple FINS applications (CX-Programmer and user-created application programs) at the same computer can be connected online to a PLC via Ethernet (using either TCP/IP or UDP/IP).

1-5-2 Socket Services

The socket services allow devices on the Ethernet to send and receive various data using either the UDP or TCP protocol.

Manipulating Dedicated Control Bits

One way to use socket services is to set the required parameters in the parameter area allocated in the DM Area, and then to request particular UDP or TCP socket services by turning ON dedicated control bits in memory. When the Ethernet Unit has completed the requested process, the same bit is turned OFF to provide notification. Data that is sent or received is automatically handled according to the I/O memory locations specified in the parameter area.

There is no need to execute the CMND(490) instruction or to monitor the completion timing and actual processing of the instruction, so this helps to simplify ladder programming.

A total of eight ports (UDP and TCP combined) can be used for socket services.

Starting with unit version 1.5, the performance of sending and receiving has been improved by using the option settings.

UNIX computer, etc. (node with socket services interface)

Ethernet

TCP/UDP protocol

CS/CJ-series CPU Unit

Ethernet Unit

TCPUDP

TCP/UDP protocol

Socket

Ethernet Unit CS/CJ-series

Service request switch

Parameters

CPU Unit

Overview of Communications Functions Section 1-5

Executing CMND(490) Another way to use socket services is to request a UDP or TCP socket ser-

vice by sending a FINS command to the Ethernet Unit by executing CMND(490) from the CPU Unit. When the Ethernet Unit receives the socket service request, it returns a response to the CPU Unit to confirm that it received the request, and then begins the requested processing. When the processing is completed, the results are stored in the Results Storage Area in the CPU Unit.

Eight TCP ports and eight UDP ports can be used.

Improved TCP Socket Interface

The TCP socket interface has been improved. The size of received data accumulated in the reception buffer is now stored, and a Data Received Flag has been added, enabling the TCP socket's receive program to be executed after the required data has been accumulated in the Ethernet Unit's reception buffer. The keep-alive setting has also been enabled for TCP socket services.

UNIX computer, etc. (node with socket services interface)

Ethernet

TCP/UDP protocol

CS/CJ-series CPU Unit

TCP protocol

UDP protocol

Socket interface

Ethernet Unit CS/CJ-series

TCPUDP

Socket

FINS commands

FINS responses

Processing results

Ethernet Unit

CMND

Results Storage Area

CPU Unit

Overview of Communications Functions Section 1-5

1-5-3 FTP Server Function

The Ethernet Unit has a built-in FTP server, so other computers on the Ethernet can read or write individual files on a Memory Card mounted to the CPU Unit or in EM File Memory. This allows files to be exchanged between the host computer and the PLC, with the host computer functioning as an FTP client and the PLC as an FTP server.

Host computer (FTP client)

Ethernet

Host computer to PLC PLC to host computer

File data

1-5-4 Mail Send Function

This function automatically sends data in the CPU Unit's I/O memory (or a file on a Memory Card) as an e-mail attachment from the Ethernet Unit to specified e-mail addresses when a pre-specified PLC condition is met. User-created data (in ASCII), error log data, and status data in the CPU Unit can all be sent as text.

E-mail can be sent over the Internet, and not just within the intranet.

FTP commands

CS/CJ-series CPU Unit

Ethernet Unit

Memory Card or EM File Memory

SMTP server

Memory Card or EM File Memory

File data

Memory Card or EM File Memory

Ethernet

E-mail

CS/CJ-series CPU Unit

Ethernet Unit

The e-mail can be sent on any of the following types of timing:

When the Mail Send Switch turns ON When the value of a specified word meets a condition When the value of a specified bit meets a condition When an error is recorded in the Ethernet Unit's error log When the CPU Unit's operating mode is changed At regular intervals

Note (1) Depending on the Internet service provider (ISP), the use of POP before

SMTP may be defined from the standpoint of security considerations. (This Unit handles POP before SMTP.)

Overview of Communications Functions Section 1-5

(2) An SMTP server is required to use the mail send function. (3) Mail server settings require specialized knowledge, so they should al-

ways be handled by the network administrator.

(4) Be sure that you have a clear understanding of the mail system before us-

ing this function.

(5) Mail my not always be delivered. Depending on factors such as the con-

dition of the network, mail that has been sent may not arrive at its destination.

1-5-5 Mail Receive Function

With the mail receive function, the user writes a command into the e-mail and then sends the e-mail to the Ethernet Unit. The Ethernet Unit receives e-mail at regular intervals, executes the commands, and sends back responses by email.

E-mail can be received over the Internet, and not just from within the intranet.

POP3 server

Ethernet

E-mail

CS/CJ-series CPU Unit

Ethernet Unit

The following types of commands can be sent to the PLC: I/O memory read and write, backup, operating mode changes, and file transfers (of 1 Mbyte or less).

Note (1) A POP3 server is required to use the mail receive function.

(2) Mail server settings require specialized knowledge, so they should al-

ways be handled by the network administrator.

(3) Be sure that you have a clear understanding of the mail system before us-

ing this function.

(4) Mail may not always be delivered. Depending on factors such as the con-

dition of the network, mail that has been sent may not arrive at its destination.

Overview of Communications Functions Section 1-5

1-5-6 Automatic Clock Adjustment Function

The Ethernet Unit can acquire clock information from the SNTP server at a particular time or when a dedicated bit turns ON, and it can refresh the internal clock information of the CPU Unit to which it is mounted.

SNTP server

Ethernet

Clock information

CS/CJ-series CPU Unit

Note (1) An SNTP server is required to use this function.

(2) SNTP server settings require specialized knowledge, so they should al-

ways be handled by the network administrator.

(3) Be sure that you have a clear understanding of the mail system before us-

ing.

(4) When using the Internet, depending on the condition of the network it

may not be possible to acquire the clock information.

Ethernet Unit

1-5-7 Specifying Servers by Host Name

POP servers, SMTP servers, and SNTP servers can be specified by host name rather than by IP address by using of the DNS client function.

DNS server

CS/CJ-series CPU Unit

Note A DNS server is required to specify servers by host name.

IP address

Host name

Ethernet

Ethernet Unit

Nomenclature and Functions Section 1-6

1-6 Nomenclature and Functions

This section describes Ethernet Unit component names, settings, and LED indicators.

1-6-1 Component Names

CS-series Ethernet Units

CS1W-ETN21 (100Base-TX)

Front

ETN21

RUN ERC

LNK

NODE

NO.

100M ERH

TCP FTP HOST

UNIT

NO.

×16

Indicators

Display the operating status of the Unit.

Unit Number Switch

Used to set the Ethernet Unit's unit number in one digit hexadecimal.

Node Address Switches

Used to set the Ethernet Unit's FINS node number in two digits hexadecimal.

100BASE-TX

10BASE-T

Ethernet Connector

Used to connect the Ethernet twisted-pair cable.

Each communications device connected to the Ethernet network is allocated a unique Ethernet address. For the Ethernet Unit, this Ethernet address is shown on the right side of the Unit as a 12-digit hexadecimal number.

CS1W-ETN21

ETHERNET UNIT

Lot No. OMRON Corporation MADE IN JAPAN

@@@@@@@@@@@@

Ethernet Address

Ethernet address (12 digits)

Note The Ethernet address can also be checked using the FINS command, CON-

TROLLER DATA READ. For details, refer to 7-3-2 CONTROLLER DATA READ on page 162.

Nomenclature and Functions Section 1-6

CJ-series Ethernet Units

CJ1W-ETN21 (100Base-TX)

Front

• Unit Version 1.5 or Later • Unit Version 1.4 or Earlier

Slider

For mounting to other Units.

Indicators

ETN21

RUN ERC SD RD

ERH TCP FTP HOST100M

x16

ETN21

RUN

LINK

UNIT

No.

NODE

No.

x16

ERC SD RD

ERH TCP FTP HOST

100M

LINK

UNIT

No.

NODE

No.

x16

Display the operating status of the Unit.

Unit Number Switch

Used to set the Ethernet Unit's unit number in one digit hexadecimal.

Node Number Switches

Used to set the Ethernet Unit's FINS node number in two digits hexadecimal.

100BASE-TX

10BASE-T

Note An IP address label is provided with the Unit. Writing the IP address and the

100BASE-TX

10BASE-T

Ethernet Connector

Used to connect the Ethernet twisted-pair cable.

Mounting Pin for DIN Track

Used when mounting the Unit to DIN Track.

Slider

For mounting to other Units.

subnet mask on this label and then attaching it to the front of the Unit allows the IP address and subnet mask to be easily confirmed.

Nomenclature and Functions Section 1-6

• Unit Version 1.5 or Later • Unit Version 1.4 or Earlier

ETN21

RUN ERC SD RD

ERH TCP FTP HOST100M

IP ADDRESS

x16

133.113. 0. 42

SUBNET MASK

255.255.255.0

100BASE-TX

10BASE-T

LINK

UNIT No.

NODE No. x16

ETN21

RUN ERC SD RD

ERH TCP FTP HOST100M

IP ADDRESS

LINK

UNIT

No.

NODE

No.

x16

Example

IP ADDRESS

133.113. 0. 42

SUBNET MASK

255.255.255.0

Attach the label to the front of the Ethernet Unit between the node number switches and the Ethernet connector.

133.113. 0. 42

SUBNET MASK

255.255.255.0

100BASE-TX

10BASE-T

Note The Ethernet address can also be checked using the FINS command, CON-

1-6-2 Indicators

CJ1W-ETN21

ETHERNET UNIT

Lot No. OMRON Corporation MADE IN JAPAN

@@@@@@@@@@@@

Ethernet Address

Ethernet address (12 digits)

TROLLER DATA READ. For details, refer to 7-3-2 CONTROLLER DATA READ on page 162.

The status of the indicators show the operating status of the Ethernet Unit, as shown below.

CS1W-ETN21 (100Base-TX)

ETN21

RUN ERC

LNK

100M ERH TCP FTP HOST

CJ1W-ETN21 (100Base-TX)

ETN21

RUN

ERC SD RD

ERH TCP FTP HOST

100M

LNK

Nomenclature and Functions Section 1-6

Indicator Color Status Meaning

RUN Green Not lit Operation stopped

Hardware error

Lit Normal operation 100M (Transfer speed) ERC (Ethernet Unit error)

ERH (CPU Unit error)

SD (Send Data)

RD (Receive Data)

LNK (Link status)

TCP (TCP socket in use)

FTP (FTP Server Service) HOST (Server connection sta-

tus)

Green Not lit 10 Mbps (10Base-T)

Lit 100 Mbps (100Base-TX)

Red Not lit Unit normal

Lit Node address not between 1 and 254

A hardware (e.g., internal memory) error has occurred.

Red Not lit CPU Unit normal

Lit An error has occurred at the CPU Unit.

There is an error in the I/O table, unit number, unit setup, or routing table settings.

Flashing An illegal IP address has been set. With automatic address gener-

ation, the rightmost two digits of the IP address do not match the node address.

Yellow Not lit Not sending data (ready to send)

Lit Sending data

Yellow Not lit Not receiving data (ready to receive)

Lit Receiving data

Yellow Not lit Link not established between hubs.

Lit Link established between hubs.

Yellow Not lit None of the eight TCP sockets provided for socket services is in

use.

Lit At least one of the eight TCP sockets provided for socket services

is in use.

Yellow Not lit FTP server on standby.

Lit FTP server operating (one user connected).

Yellow Not lit Server (DNS, SMTP, POP3, or SNTP) not being used.

Flashing An error has occurred in the server connection.

Lit The server connection is normal.

Comparison with Previous Models Section 1-7

1-7 Comparison with Previous Models

Item Previous models New models

Model number CS1W-ETN11

CJ1W-ETN11 Physical layer 10Base-T 100Base-TX, 10Base-T Number of nodes 126 254 PLC maintenance via the Internet Not possible to send FINS

commands from a personal

computer to the PLC via the

Internet. Server specification Specification by IP address

Communications service

FINS communications service

Mail functions Mail send function only E-mail attachments with I/O memory data

FTP server function Same Socket services function --- The following features have been added to

Automatic clock information adjustment

Automatic IP address acquisition (DHCP client) by personal computer

FINS communications with personal computers without fixed node addresses

Handling TCP/IPWith FINS communications,

Simultaneous connection of multiple applications in a personal computer

only

Not possible for a computer

automatically acquiring IP

addresses to send commands

to the PLC and receive

responses.

Not possible Possible (with Automatic allocation by

only UDP/IP possible.

Not possible Possible (with both UDP/IP and TCP/IP)

Not possible CPU Unit built-in clock can be adjusted from

CS1W-ETN21 CJ1W-ETN21

Can send commands (including FINS commands) by e-mail over the Internet from a personal computer to the PLC (using the mail receive function).

Specification by IP address or by host name (using the DNS client function)

A computer automatically acquiring IP addresses can send commands to the PLC and receive responses. (UDP/IP: By automatic generation (dynamic) IP address conversion method; TCP/IP: Automatic)

Ethernet Unit) (Client FINS automatic node address allocation function, TCP/IP only)

With FINS communications, both UDP/IP and TCP/IP possible.

are now possible for the mail send function. (SMTP client function, file attachment function)

With the mail receive function, commands can be received from the PLC. (POP3 client function, mail receive function)

the TCP socket services function:

•Use of keep-alive

• Number of bytes of data received for TCP socket Nos. 1 to 8

• Status of TCP socket Nos. 1 to 8: Data Received Flag

SNTP server. (SNTP client function)

Unit Version Upgrade Information Section 1-8

1-8 Unit Version Upgrade Information

The details of the upgrade to the Ethernet Unit version are as follows:

■ Unit Version 1.3

Upgrade Details

Web function added The unit settings and status monitoring for the Ethernet Unit

Function prohibiting access using FINS/ UDP from nodes with dynamically changed IP addresses

■ Unit Version 1.4

Upgrade Details

ETN11-compatible mode added to the ETN21 settings for FINS/UDP.

■ Unit Version 1.5

Upgrade Details

Added CIDR function to subnet mask settings.

Added option for high-speed socket services.

Added linger option to socket options for TCP open request.

Changed position of node address setting switches (CJ1WETN21 only)

can be easily performed from a Web browser. Access to change the remote IP address from a node using

FINS/UDP can be prohibited (IP address protection).

A mode compatible with the CS1W-ETN11/CJ1W-ETN11 was added in the operating specifications for FINS/UDP messages sent from a different UDP port number than the FINS/UDP port number set in the Ethernet Unit.

An option setting has been added to the subnet mask settings to enable CIDR. Enabling CIDR enables using the IP address with classless subnet mask settings.

Enabling high-speed socket services improves the performance of sending and receiving for socket services using specific bits. If high-speed socket services are disabled, performance is the same as previously.

It is possible to specify the linger option in the option settings for the TCP open request (both passive and active).

The position of the node address setting switches was changed. The setting method and setting range are the same as previously.

SECTION 2

Installation and Initial Setup

This section explains how to install the Ethernet Unit and make the initial settings required for operation.

2-1 Overview of Startup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2-2-1 CS-series Ethernet Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2-2-2 CJ-series Ethernet Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2-3 Mounting to a PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2-3-1 Mounting to a CS-series PLC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2-3-2 Mounting to a CJ-series PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2-4 Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

2-4-1 Basic Installation Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

2-4-2 Recommended Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2-4-3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2-4-4 Using Contact Outputs (Common to All Units) . . . . . . . . . . . . . . . . 37

2-5 Connecting to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2-5-1 Ethernet Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2-5-2 Connecting the Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2-6 Creating I/O Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

2-6-1 I/O Table Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

2-6-2 Connecting Programming Devices to the PLC. . . . . . . . . . . . . . . . . 39

2-6-3 Procedure for Creating I/O Tables . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2-7 Unit Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2-7-1 Using the CX-Programmer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2-7-2 Using the Web Browser Setting Function. . . . . . . . . . . . . . . . . . . . . 43

2-8 Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

2-9 Unit Setup for Particular Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-10 Communications Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2-10-1 PING Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2-10-2 Ethernet Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2-10-3 Host Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2-11 Converting from Previous Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Overview of Startup Procedure Section 2-1

2-1 Overview of Startup Procedure

The following procedure is the same for the CS Series and CJ Series.

Determine the local IP address

and address conversion method.

Set the unit number.

Set the node number.

Mount the Unit to the PLC.

Connect to the network using twisted-pair cable.

Turn ON power to the CPU Unit.

Create the I/O tables.

Connecting to the Ethernet Unit without making any settings.

Use the default IP address.

Refer to IP Address in 2-8 Basic Settings.

Refer to SECTION 5 Determining IP Addresses.

Refer to 2-2 Switch Settings.

Refer to 2-3 Mounting to a PLC.

Refer to 2-4 Network Installation.

Refer to 2-6 Creating I/O Tables.

(See note 3.)

Setting only the IP address (not making other Unit settings) for simple application or operating with only the Programming Console (setting possible with CXProgrammer or Programming Console).

Set local IP address in DM Area words allocated for CPU Unit Units.

Refer to IP Address in 2-8 Basic Settings. Refer to 4-2 DM Area Allocations.

(See note 1.)

Setting system settings freely (setting possible with CX-Programmer or Web function).

(See note 2.)

Set the local IP address in the CPU Bus Unit setup area.

Refer to IP

Address in 2-8 Basic Settings.

Create the routing tables.

Perform Unit setup.

(Create IP router tables.)

Check communications. (PING command and/or

Refer to 6-4 Creating Routing Ta bl e s.

(See note 4.)

Refer to SECTION 3 CX-Programmer Unit Setup. Refer to IP Address in 2-8 Basic Settings.

(See note 5.)

Refer to 2-9 Unit Setup for Particular Applications.

Routing tables must be set to enable the following.

• Using the FINS communications service

• Using the CMND instruction with more than one

Communications Unit mounted to the PLC.

echo test).

Note 1: Used mainly when a Programming Console is used to set only the local IP address (set in allocated DM words). When using this method, always

leave the local IP address in the CPU Bus Unit Setup Area set to the default value of 0.0.0.0 If the CPU Bus Unit Setup Area contains any other value, any setting made in the allocated DM words will be overwritten with it.

2: The local IP address and other parameters can be set with the CX-Programmer. 3: A PLC Programming Device is required: CX-Programmer, CX-Integrator, Programming Console, etc. 4: The CX-Integrator is required. 5: The CX-Programmer is required.

Switch Settings Section 2-2

2-2 Switch Settings

2-2-1 CS-series Ethernet Units

Setting the Unit Number

The unit number is used to identify individual CPU Bus Units when more than one CPU Bus Unit is mounted to the same PLC. Use a small screwdriver to make the setting, taking care not to damage the rotary switch. The unit number is factory-set to 0.

Setting range:

0 to F

Note (1) Turn OFF the power supply before setting the unit number.

(2) If the unit number is being set for the first time or changed, then I/O tables

must be created for the PLC.

(3) With CS-series and CJ-series PLCs, words are automatically allocated in

the CIO Area and DM Area according to the unit numbers that are set. For details, refer to SECTION 4 Ethernet Unit Memory Allocations.

Setting the Node Address

With the FINS communications service, when there are multiple Ethernet Units connected to the Ethernet network, the Ethernet Units are identified by node addresses. Use the node address switches (NODE NO.) to set the node address between 01 and FE hexadecimal (1 to 254 decimal). Do not set a number that has already been set for another node on the same network.

Setting range:

01 to FE (1 to 254 decimal)

×16

The left switch sets the sixteens digit (most significant digit) and the right switch sets the ones digit (least significant digit). The node address is factoryset to 01.

Note Turn OFF the power supply before setting the node address.

Relation to IP Addresses When using the automatic generation method (either dynamic or passive) for

address conversion, set the rightmost byte of the IP address set for the Ethernet Unit to the same value as the node address. If this is not possible, either the IP address table method or the combined method must be used for address conversion. (For details, refer to 5-2 IP Addresses in FINS Communi- cations.) If the FINS communications service is not used on the Ethernet network, then it is all right to overlap with other Ethernet Units. The setting, however, must be made within a range of 01 to FE. If a value outside of this range is set, the ERC indicator will light.

×16

Unit Operating Mode Change Function

If the node address is set to 00, the Unit operating mode change function will start.

This function changes the format for the Unit Setup (in the CPU Bus Unit System Setup Area) when converting to a CS1W-ETN21 or CJ1W-ETN21 Ethernet Unit from one of the previous models (CS1W-ETN01/11 or CJ1W-ET11). For details, refer to 2-11 Converting from Previous Models.

Switch Settings Section 2-2

2-2-2 CJ-series Ethernet Units

Setting the Unit Number

UNIT

Note (1) Turn OFF the power supply before setting the unit number.

Setting the Node Address

No.

(2) If the unit number is being set for the first time or changed, then I/O tables

must be created for the PLC.

(3) With CS-series and CJ-series PLCs, dedicated areas are automatically

allocated in the CIO Area and DM Area according to the unit numbers that are set. For details, refer to SECTION 4 Ethernet Unit Memory Alloca- tions.

With the FINS communications service, when there are multiple Ethernet Units connected to the Ethernet network, the Ethernet Units are identified by node addresses. Use the node address switches to set the node address between 01 and FE hexadecimal (1 to 254 decimal). Do not set a number that has already been set for another node on the same network.

•Unit Version

1.5 or Later

x16

NODE

No. x16

•Unit Version

1.4 or Earlier

Setting range:

0 to F

NODE No.

x16

Setting range

01 to FE (1 to 254 decimal)

The left switch sets the sixteens digit (most significant digit) and the right switch sets the ones digit (least significant digit). The node address is factoryset to 01.

Note Turn OFF the power supply before setting the node address.

Relation to IP Addresses When using the automatic generation method (either dynamic or passive) for

x16

Mounting to a PLC Section 2-3

Unit Operating Mode Change Function

If the node address is set to 00, the Unit operating mode change function will start.

2-3 Mounting to a PLC

2-3-1 Mounting to a CS-series PLC

Ethernet Units can be mounted to any slots in either a CS-series CPU Rack or a CS-series Expansion CPU Rack, but the number of slots to which they can be mounted depends on the Backplane. Up to four Ethernet Units can be mounted to a single PLC. If it is mounted in combination with other CPU Bus Units (e.g., Controller Link Units), the maximum total number of CPU Bus Units that can be mounted is 16.

Note Tighten PLC Backplane mounting screws to a torque of 0.9 N

Unit’s screws to a torque of 0.4 N

CS1W-BC023/BC033/BC053/BC083/BC103 CPU Backplane

CS-series CPU Rack Can mount to any position,

with 2, 3, 5, 8, or 10 slots.

CPU

⋅m, and the

⋅m.

2, 3, 5, 8, or 10 slots (Expansion Backplane not possible with 2-slot CPU Backplane.)

CS1W-BI033/BI053/BI083/BI103 CS-series Expansion Backplane

CS-series Expansion Rack

Can mount to any position,

with 3, 5, 8, or 10 slots.

3, 5, 8, or 10 slots

C200H Expansion I/O Backplane

C200H Expansion Rack

Ethernet Unit cannot be

mounted to any slots.

Note The CS1W-ETN21 Ethernet Unit’s maximum current consumption is 380 mA.

Make sure that the total current consumption of all the Units connected to the same CPU Backplane or Expansion Backplane does not exceed the output capacity of the Power Supply Unit.

2-3-2 Mounting to a CJ-series PLC

Ethernet Units can be connected to either a CJ-series CPU Rack or a CJseries Expansion CPU Rack. Connect the Ethernet Unit in any of the positions shown below using the sliders on the top and bottom of the Unit. Up to four Ethernet Units can be mounted to a single PLC. If it is mounted in combination with other CPU Bus Units (e.g., Controller Link Units), the maximum total number of CPU Bus Units that can be mounted is 16.

Up to four Units can be mounted to the slots shown in the diagrams on the left.

CPU: CPU Unit PS: Power Supply Unit

Network Installation Section 2-4

CPU Rack

Expansion Backplane

SIC

PSI

10 Units max.

End cover

Up to four Ethernet Units can be mounted.

End cover

PSI

PS: Power Supply Unit CPU: CPU Unit IC: I/O Control Unit II: I/O Interface Unit

The CJ1W-ETN21 Ethernet Unit’s maximum current consumption is 370 mA. Make sure that the total current consumption of all the Units connected to the same CPU Backplane or Expansion Backplane does not exceed the output capacity of the Power Supply Unit.

2-4 Network Installation

2-4-1 Basic Installation Precautions

• Take the greatest care when installing the Ethernet System, being sure to follow ISO 8802-3 specifications. You must obtain a copy of these specifications and be sure you understand them before attempting to install an Ethernet System. Unless you are already experienced in installing communications systems, we strongly recommend that you employ a professional to install your system.

• Do not install Ethernet equipment near sources of noise. If noise-prone environments are unavoidable, be sure to take adequate measures against noise interference, such as installing network components in grounded metal cases, using optical links in the system, etc.

Network Installation Section 2-4

2-4-2 Recommended Products

The following products are recommended for use with the CS1W-ETN21 Ethernet Unit.

Part Maker Model

Hub 100BASE-TX

Tw is t e d- p ai r cable

Connectors (Modular plug)

PHOENIX CONTA CT

10BASE-T Allied

Te le s i s

100BASE-TX Fujikura F-LINK-E

Fujikura CTP-LAN5

10BASE-T Fujikura F-LINK-E

Fujikura CTP-LAN5

STP Plug Panduit

Corp UTP Plug Panduit

Corp

SWITCH 5TX

MR820TLX 9-port hub with 10Base-5

0.5mm x 4P

MPS588 ---

MP588-C ---

number

Specifications Inquires

10/100 Mbit/s 5-port hub

Allied Telesis

backbone port

STP (shielded twistedpair) cable: Category 5, 5e

Note: Impedance is limited to 100 Ω.

UTP (unshielded twistedpair) cable: Category 5, 5e

STP (shielded twistedpair) cable: Category 3, 4, 5, 5e

Note: Impedance is limited to 100 Ω.

UTP (unshielded twistedpair) cable: Category 3, 4, 5, 5e

(0120) 86-0442 (in Japan only)

---

2-4-3 Precautions

Precautions on Laying Twisted-pair Cable

Basic Precautions • Press the cable connector in firmly until it locks into place at both the hub

and the Ethernet Unit.

• After laying the twisted-pair cable, check the connection with a 10Base-T cable tester.

Environment Precautions • The UTP cable is not shielded, and the hub is designed for use in OA

environments. In environments subject to noise, construct a system with shielded twisted-pair (STP) cable and hubs suitable for an FA environment.

• Do not lay the twisted-pair cable together with high-voltage lines.

• Do not lay the twisted-pair cable near devices that generate noise.

Network Installation Section 2-4

• Do not lay the twisted-pair cable in locations subject to high temperatures or high humidity.

• Do not lay the twisted-pair cable in locations subject to excessive dirt and dust or to oil mist or other contaminants.

Hub Installation Environment Precautions

• Do not install the hub near devices that generate noise.

• Do not install the hub in locations subject to high temperatures or high humidity.

• Do not install the hub in locations subject to excessive dirt and dust or to oil mist or other contaminants.

Hub Connection Methods If more hub ports are required, they can be added by connecting more than

one hub. There are two possible connection methods for hubs: Cascade and stacked.

Cascade Connections

• Connect two hubs to each other as follows: Connect an MDI port to an MDI-X port with a straight cable; connect two MDI ports with a cross cable; and connect two MDI-X ports with a cross cable.

Note It is very difficult to distinguish cross cables and straight cables by appear-

ance. Incorrect cables will cause communications to fail. We recommend using cascade connections with straight cables whenever possible.

• With cascade connections, up to 5 segments can be connected using up to 4 repeaters (i.e., 4 hubs).

MDI-X port (cross)

MDI ports

Hub

Straight cable Cross cable

Hub

Stack Connections • Connect the hubs using special cables or special racks.

• Normally there is no limit to the number of hubs in a stack, and each stack is treated as one hub. Some hubs, however, are limited in the number of hubs per stack.

Hub

Four stackable hubs

Stack cable

Two stackable hubs

Hub

Stack cable

Network Installation Section 2-4

2-4-4 Using Contact Outputs (Common to All Units)

Communications errors can occur when Contact Output Units are mounted to the same Rack or connected to the same PLC as an Ethernet Unit due to noise generated by the contact outputs. Use one or more of the following measures when installing Contact Output Units and Ethernet Units on the same Rack.

Mounting Location Mount (or connect) any Contact Output Units as far away from the Ethernet

Unit as possible.

Contact Output Unit

Contact outputs

Ethernet Unit

Transceiver/Hub

Cable Location Separate the transceiver cable or twisted-pair cable connecting the Ethernet

Unit as far from the wiring to the Contact Output Units as possible. The coaxial cable must also be placed as far away from the Contact Output Units and their wiring as possible.

Contact outputs

Contact Output Unit

To transceiver/hub

Ethernet Unit

Connecting to the Network Section 2-5

2-5 Connecting to the Network

2-5-1 Ethernet Connectors

The following standards and specifications apply to the connectors for the Ethernet twisted-pair cable.

• Electrical specifications: Conforming to IEEE802.3 standards.

• Connector structure: RJ45 8-pin Modular Connector

(conforming to ISO 8877)

Connector pin Signal name Abbr. Signal direction

1 Transmission data + TD+ Output 2 Transmission data – TD– Output 3 Reception data + RD+ Input 4 Not used. --- --5 Not used. --- --6 Reception data – RD– Input 7 Not used. --- --8 Not used. --- --Hood Frame ground FG ---

2-5-2 Connecting the Cable

!Caution Turn OFF the PLC’s power supply before connecting or disconnecting twisted-

pair cable.

!Caution Allow enough space for the bending radius of the twisted-pair cable as shown

in below.

35 mm

1,2,3... 1. Lay the twisted-pair cable.

2. Connect the cable to the hub. Be sure to press in the cable until it locks into place.

Request cable installation from a qualified professional.

Creating I/O Tables Section 2-6

3. Connect the cable to the connector on the Ethernet Unit. Be sure to press in the cable until it locks into place.

Example: CS1W-ETN21

Ethernet Unit

RJ45 Modular Connector

2-6 Creating I/O Tables

2-6-1 I/O Table Overview

I/O tables are used to identify Units mounted to the PLC, and to allocate I/O to them. With CS-series and CJ-series PLCs, whenever there is a change to the Unit configuration it is necessary to create I/O tables and register the Units to the CPU Unit.

The I/O tables can be created in the following ways.

• Using the CX-Programmer offline.

• Using the CX-Programmer online, with the Units mounted to the PLC.

• Using the Programming Console, with the Units mounted to the PLC.

• Using the CPU Unit's automatic I/O allocation at startup. (This method is available for the CJ Series only.) From here on, operations involving the Programming Console are described.

2-6-2 Connecting Programming Devices to the PLC

To create the I/O tables, connect a Programming Device (such as a CX-Programmer or Programming Console) to the PLC.

Applicable Programming Devices

The following Programming Devices can be used with CS/CJ-series PLCs.

Programming Console

Model number Key Sheet (required) Recommended cable (required)

C200H-PRO27-E CS1W-KS001-E CS1W-CN224 (cable length: 2.0 m)

CS1W-CN624 (cable length: 6.0 m)

CQM1-PRO01-E CS1W-CN114 (cable length: 0.1 m)

CX-Programmer (Version 3.20 or Higher) and CX-Integrator

The operations are explained here using a Programming Console. For details regarding the CX-Programmer and the CX-Integrator, refer to the CX-Pro- grammer User’s Manual. Refer to the CX-Integrator Operation Manual (W445) for connection procedures and operating procedures for the CX-Integrator.

CX-Integrator is software that comes with CX-One and is automatically installed when CX-One is installed.

Creating I/O Tables Section 2-6

Connecting Programming Devices

To connect a Programming Console, attach a CS/CJ-series Key Sheet and then connect the Console to the CPU Unit’s peripheral port. (It cannot be connected to the RS-232C port.)

2-6-3 Procedure for Creating I/O Tables

The procedure for creating I/O tables is shown here, taking as an example I/O tables that is generated automatically for a PLC connected online. In this example, a Programming Console is used for creating the I/O tables. For an explanation of how to create I/O tables using a CX-Programmer, refer to the CX-Programmer User’s Manual.

Use the following procedure to create the I/O tables.

Note With the CJ Series, it is necessary to create I/O tables only when I/O alloca-

tion is performed by the user. With the CS Series, it is always necessary to create I/O tables.

Initial screen

SHIFT

000000 I/O TBL ?

*DM

CHG

000000 I/O TBL

WRIT ????

000000CPU BU ST?

0:CLR 1:KEEP

000000 I/O TBL

WRIT OK

Password

WRITE

(Save or clear the CPU Bus Unit System Setup.)

Unit Setup Procedure Section 2-7

2-7 Unit Setup Procedure

2-7-1 Using the CX-Programmer

Use the CX-Programmer (Ver. 3.20 or higher) for the Ethernet Unit Setup, and follow the procedure described below. Some functions added with unit version

1.3 require CX-Programmer version 5.0 or higher for setting.

1,2,3... 1. Connect the CX-Programmer online.

The CX-Programmer can be connected to the PLC in either of the following ways:

a. Connect the personal computer to the PLC by serial cable, through ei-

ther a peripheral port or RS-232C port. b. Connect the personal computer to the PLC by Ethernet. When Ethernet Unit is registered in the I/O tables in the CPU Unit, the

Ethernet Unit will operate using the default IP address (192.168.250.node_number). This default IP address can be used initially to connect online.

For details on connecting the CX-Programmer to the PLC by serial cable, refer to the CX-Programmer operation manual.

For details on connecting the CX-Programmer to the PLC by Ethernet, refer to 6-5 Using FINS Applications.

2. Use the mouse to select I/O table in the Project Window. Either doubleclick or right-click to display the Properties Menu, and select Open. The I/O Table Window will then be displayed.

Unit Setup Procedure Section 2-7

3. Read the I/O tables from the PLC and select the Rack to which the Ethernet Unit is mounted.

4. Move the cursor to the Ethernet Unit and right-click. Select Unit Setup from the popup menu to display the window for making the Ethernet Unit Setup. The default settings are shown below.

At the point where the Ethernet Unit is mounted and the I/O tables has just been created, the default values are in effect for all of the settings.

Unit Setup Procedure Section 2-7

5. Make the required settings (i.e., the IP address in this case).

6. Transfer the settings to the PLC. Click on Yes in the following dialog box.

7. In order for the Ethernet Unit Setup to go into effect, the Unit must be restarted.

Click on Yes in the following dialog box.

8. Check the Ethernet Unit's LED indicators. After the RUN indicator has turned OFF and then turned ON again, the

Ethernet will recognize the new settings (i.e., the IP address in this case).

2-7-2 Using the Web Browser Setting Function

For Ethernet Units with Unit Ver. 1.3 or later, the Ethernet Unit’s system settings can be set using the Web browser of a personal computer or other device. The Ethernet Unit’s Web window is displayed by accessing the following URL from the Web browser.

URL: http://(Ethernet Unit’s IP address)/0

Use the following procedure to set the Unit’s system settings (IP address in this example) using Internet Explorer version 6.0 and the Ethernet Unit’s Web function.

Unit Setup Procedure Section 2-7

1,2,3... 1. Connect to the Ethernet Unit from the Web browser.

In this example, the URL is specified as http://192.168.250.1/0 using the Ethernet Unit’s default IP address.

2. Select Settings from the menu on the left side of the window to display the Settings Menu.

Unit Setup Procedure Section 2-7

3. Select 1. IP address and Protocols - System to display the Login Password field on the right of the window.

4. Input the default password (“ETHERNET” all in upper case) and click the Login Button.

5. The settings in the System menu will be displayed. The following window shows the default system settings.

Basic Settings Section 2-8

6. Make the required settings (i.e., the IP address in this example).

7. After entering the correct values, click the Set Button followed by the Reg- ist Button to register them.

The Set Button is used to transfer the entered values from the personal computer, and temporarily register them in the Ethernet Unit.

The Regist Button stores the set values that have been temporarily registered in the Ethernet to the flash memory (non-volatile memory) of the CPU Unit. The Ethernet Unit reads the unit settings from flash memory (non-volatile memory) when the power is turned ON or the Unit is restarted. Therefore, when making the unit settings using the Web function, always click the Set Button before the Regist Button. Otherwise the entered set values will not be used. The Set Button and Regist Button are provided on the window for each setting item.

The functions of the other buttons are as follows:

• Cancel Button Use this button to cancel the entered value and display the value that was previously set with the Set Button again. If the Set Button has not been clicked, the value that was read from the CPU Unit’s flash memory (nonvolatile memory) when the Ethernet Unit was started will be displayed.

• Reload Button Use this button read and display the values saved in the CPU Unit’s flash memory (non-volatile memory).

8. To enable the unit settings that have been registered in the CPU Unit’s flash memory (non-volatile memory, turn the power to the PLC OFF and ON again, or restart the Ethernet Unit.

2-8 Basic Settings

The following items comprise the basic settings in the Ethernet Unit (100Base-TX) setup. Each item is described in detail below.

■ IP Address

For the IP address, set the Ethernet Unit's local IP address.

• IP address

• Subnet mask

• Broadcast settings

• Baud rate

• TCP/IP keep-alive

•IP router table

Basic Settings Section 2-8

Depending on the value that is set, the IP address has a great influence on the connectability of the Ethernet Unit. To make full use of the Ethernet functions, it is necessary to study the applications and network system design when determining IP address allocations. Before setting the IP address, refer to SECTION 5 Determining IP Addresses.

There are several ways to set IP addresses.

Default Setting

The Ethernet Unit operates using the default IP address when the Unit is mounted to the PLC and initially registered in the I/O tables (i.e., when the Unit settings have not been made and the IP Address Display/Setting in the CPU Bus Unit Words Allocated in the DM Area is still all zeros).

The default IP address is determined as follows:

Default IP address = 192.168.250.FINS node address

The FINS node address is set by the rotary switch on the front of the Ethernet Unit. If the defaults are used for the IP address and the Unit settings, the settings will be as shown below.

Item Operation status

IP address 192.168.250.FINS node address Subnet mask 255.255.255.0 (Class C mask) Broadcast settings 4.3BSD Baud rate Auto TCP/IP keep-alive 120 min. IP router table None (IP router not enabled)

Setting the IP Address in the CPU Bus Unit Words Allocated in the DM Area

This method sets the IP address in the IP Address Display/Setting Area in the CPU Bus Unit Words Allocated in the DM Area, when the IP address is not set in the Unit Setup. When the IP address is set in the Unit Setup, the IP Address Display/Setting Area becomes the area for displaying the settings.

To make settings in the IP Address Display/Setting Area, use the CX-Programmer or Programming Console to write the values. In order for the new settings to go into effect, either the Ethernet Unit must be restarted or the power must be turned ON again to the PLC.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

m+98 (1) (2) (3) (4) m+99 (5) (6) (7) (8)

IP address: (1)(2).(3)(4).(5)(6).(7)(8) (hexadecimal) If only the IP address is set, according to the IP Address Display/Setting Area,

and the defaults are used for all other Unit settings, the settings will be as shown below.

Item Status

IP address Words allocated for CPU Bus Unit (m+98 to m+99) Subnet mask Uses value corresponding to IP address class. Broadcast settings 4.3BSD specifications Baud rate Auto TCP/IP keep-alive 120 minutes IP router table Not set. (IP routing not supported.)

Basic Settings Section 2-8

Unit Setup

This method sets the IP address by first selecting the Ethernet Unit from the CX-Programmer's I/O Table Window while connected online, and then setting the IP address from the Unit Setup.

Example: Using the CX-Programmer to Set the IP Address to 10.3.65.1

When an IP address is set in the Unit Setup, that value is displayed in the IP Address Display/Setting Area in the DM Area words allocated for CPU Bus Units.

When the IP address is set by the CX-Programmer, and the defaults are used for all other Unit settings, the settings will be as shown below.

Item Status

IP address Set by CX-Programmer. Subnet mask Uses value corresponding to IP address class when

Broadcast settings 4.3BSD specifications Baud rate Auto TCP/IP keep-alive 120 minutes IP router table Not set. (IP routing not supported.)

not using CIDR.

■ Subnet Mask

For the subnet mask, all bits corresponding to the bits in the IP address used as either the net number or the subnet number are set to 1, and the bits corresponding to the host number are set to 0. These settings must be made when using an address conversion method other than the IP address table method.

Starting from unit version 1.5, it is possible to use classless inter-domain routing by enabling CIDR. Enabling CIDR enables setting 192.0.0.0 to

255.255.255.252 for the subnet mask regardless of the IP address class.

Basic Settings Section 2-8

If CIDR is not enabled and a subnet mask is not set (i.e., the default of 0.0.0.0 is set) or an illegal value is set, one of the following values will be set as the network mask according to the class of the local IP address.

Class Subnet mask

Class A 255.0.0.0 Class B 255.255.0.0 Class C 255.255.255.0

If classes are normally used, it is recommended to set a subnet mask values corresponding to the class.

■ Broadcast Settings

Set the method for specifying IP addresses when broadcasting.

Setting Contents

All 1 (4.3BSD) (Default)

All 0 (4.2BSD) Broadcast with Host ID all zeros (4.2BSD specifications).

■ Baud Rate

Set the baud rate.

Setting Contents

Auto (Default) Automatically detects the baud rate between hubs.

10Base-T Operates with 10Base-T (half duplex).

Broadcast with all ones for Host ID (4.3BSD specifications).

Operates with 100Base-TX (full duplex) whenever possible.

■ TCP/IP Keep-alive Setting

Set the Liveness-Checking Interval. (This setting is enabled only when FINS/TCP or TCP/IP socket services are used.)

When the keep-alive function is used with FINS/TCP or TCP/IP socket services, the keep-alive communications frame is used to check the status of the connection with the remote node (either a server or client) if there are no communications during the time interval set here. Up to nine checks are executed at 75-second intervals. and if there is no response to any of them then the connection is terminated.

The default setting (0) is for a specified value of 120 minutes for the LivenessChecking Interval. When the prescribed value is used as is, it may not be suitable for control system applications. Set the checking time as required for the system. The setting range is 0 to 65,535 minutes.

■ IP Router Table

An IP router table is a table of correspondences for finding IP addresses for the IP routers that relay target segments when the Unit communicates via IP routers with nodes on other IP network segments.

130.26.X.X (Network ID)130.25.X.X (Network ID)

130.25.36.253 130.26.2.254

IP router

Node BNode A

Unit Setup for Particular Applications Section 2-9

For the IP network address, set the network number (i.e., the net ID) of the other IP network segment with which communications are to be executed. The length of the network number (i.e., the number of bytes) will vary depending on the IP address class. Four bytes are reserved for setting the IP network address, so set the network number from the beginning and then set 00 in the remaining space.

A maximum of eight settings can be registered. The default is for nothing to be set.

Settings

In this example setting for Node A (refer to the diagram above), a node with an IP address of 130.26.1.1 is connected to an IP router with an IP address of

130.25.36.253.

Only one default IP router can be set. The default IP router is selected when no Network ID exists in the IP router

table for the destination network number. To set the default IP router, set

0.0.0.0 for the IP address and set the default IP router's IP address for the

router address.

2-9 Unit Setup for Particular Applications

Aside from the basic settings, the required settings vary depending on the particular communications applications that are used.

For details on settings, refer to SECTION 3 CX-Programmer Unit Setup.

FINS/UDP

CX-Programmer tab Settings

Setup Conversion

FINS/UDP Port No. IP Address Table Destination IP Address

Change Dynamically

For details, refer to SECTION 6 FINS Communications Service in the Opera- tion Manual Construction of Networks.

Use CX-Integrator to make routing table settings as required.

FINS/TCP

CX-Programmer tab Settings

Setup FINS/TCP Port No. FINS/TCP FINS/TCP Connection Setup

For details, refer to SECTION 6 FINS Communications Service in the Opera- tion Manual Construction of Networks.

Unit Setup for Particular Applications Section 2-9

Use CX-Integrator to make routing table settings as required.

Socket Services

CX-Programmer tab Setting

Setup Keep-alive

FTP

CX-Programmer tab Settings

Setup Login

Password Port No

For details, refer to SECTION 4 FTP Server Function in the Operation Manual Construction of Applications.

Mail

CX-Programmer tab Settings

DNS IP Address

Por t No. Retry timer

SMTP Server specification type

IP Address Host name Por t No. Local mail address Use POP before SMTP

Mail Address Mail address 1

Mail address 2

Send Mail Transmission trigger setting

Trigger classification Interval time Mail address Transmission data classification

Mail Reception

For details, refer to SECTION 2 Mail Send Function in the Operation Manual Construction of Applications.

CX-Programmer tab Settings

DNS IP Address

Por t No. Retry timer

POP Server specification type

IP Address Host name Por t No. Account Name Mail password Server access interval time

Communications Test Section 2-10

CX-Programmer tab Settings

Receive Mail Posting Mail Address Protection Setting

Receive Attached File Setting Receive Command Setting

For details, refer to SECTION 3 Mail Receive Function in the Operation Man- ual Construction of Applications.

Automatic Clock Adjustment

CX-Programmer tab Settings

DNS IP Address

Por t No. Retry timer

Auto Adjust Time SNTP Server Setup

Auto Adjust Time Server specification type IP Address Host name Por t No. Retry timer Adjust Time

For details, refer to SECTION 5 Automatic Clock Adjustment Function in the Operation Manual Construction of Applications.

Web Functions

CX-Programmer

tab

HTTP Use Web function

For details, refer to Appendix G Ethernet Unit Web Function.

2-10 Communications Test

If the basic settings (in particular the IP address and subnet mask) have been made correctly for the Ethernet Unit, then it should be possible to communicate with nodes on the Ethernet.

This section describes how to use the PING command to perform communications testing between Ethernet Units.

2-10-1 PING Command

The PING command sends an echo request packet to a remote node and receives an echo response packet to confirm that the remote node is communicating correctly. The PING command uses the ICMP echo request and responses. The echo response packet is automatically returned by the ICMP.

The PING command is normally used to check the connections of remote nodes when configuring a network. The Ethernet Unit supports both the ICMP echo request and reply functions.

Setting item

Password Port No.

Communications Test Section 2-10

If the remote node returns a normal response to the PING command, then the nodes are physically connected correctly and Ethernet node settings are correct.

2-10-2 Ethernet Unit

2-10-3 Host Computer

PLC

Ethernet Unit

Echo request

Echo response

Remote Node (host computer or Ethernet Unit)

TCP UDP

ICMP

Ethernet

The Ethernet Unit automatically returns the echo response packet in response to an echo request packet sent by another node (host computer or other Ethernet Unit). An echo request packet can be sent to another node by issuing the FINS command to execute the PING command from the PLC. Refer to page 184 for details on the PING command.

The PING command can be executed from the host computer to send an echo request packet to an Ethernet Unit. The method for using the PING command from a UNIX computer is given next.

Method

Note The PING command is not supported by some host computers.

Application Examples

Normal Execution $

Input the following at the host computer prompt ($):

$ ping IP_address(host_name)

The destination is specified by its IP address or host name. If the host name is used, the host name must be defined in file /etc/hosts.

These examples show sending the PING command to the node at IP address

130.25.36.8. The “$” in the example represents the host computer prompt.

User inputs are underlined. Comments are placed after semicolons.

ping 130.25.36.8 ; Executes PING command

PING 130.25.36.8: 56 data bytes 64 bytes from 130.25.36.8: icmp_seq=0. time=0.ms 64 bytes from 130.25.36.8: icmp_seq=0. time=0.ms

... ... ...

64 bytes from 130.25.36.8: icmp_seq=0. time=0.ms ←Enter Ctrl+C Key to cancel. ––––130.25.36.8 PING Statistics–––– 9 packets transmitted, 9 packets received, 0% packets loss round–trip (ms) min/avg/max = 0/1/16

Converting from Previous Models Section 2-11

Abnormal Execution $ ping 130.25.36.8 ; Executes PING command

PING 130.25.36.8: 56 data bytes ←Enter Ctrl+C Key to cancel. ––––130.25.36.8 PING Statistics–––– 9 packets transmitted, 0 packets received, 100% packets loss

Refer to operating system documentation for your host computer for details about using the host computer’s PING command.

2-11 Converting from Previous Models

The specifications for these Ethernet Units (CS1W-ETN21 and CJ1W-ETN21) are compatible with those for previous models (CS1W-ETN01/ETN11 and CJ1W-ETN11), so previous models being used with existing equipment can be easily replaced by the new models. Many of the specifications for the new Ethernet Units have been expanded, however, so there will be a number of limitations if the Unit is simply replaced.

In particular, the CPU Bus Unit System Setup Area is formatted for the previous models, so there is no way to make the settings for the expanded specifications.

To remove these limitations, it is necessary to change the CPU Bus Unit System Setup format from “ETN11 mode” to “ETN21 mode.” Refer to Changing the CPU Bus Unit System Setup Area Format below for instructions on how to make the change.

If the format change is from ETN11 mode to ETN21 mode, then there will be no effect on previous applications. If the change is from ETN21 mode to ETN11 mode, however, then certain limitations will go into effect.

The following table shows the limitations that apply when operating in ETN11 mode.

Item Specifications in ETN11 mode

Baud rate • Automatic detection (100Base-TX or

10Base-T)

Subnet mask • CIDR is not used.

• Operation is performed with the default network mask if the subnet mask specification is less than the network mask for each class.

FINS node address setting range • 1 to 254 IP address conversion: Automatic

generation method TCP keep-alive • No time setting (Uses default setting) FINS/TCP • Server only for all connections (Uses default

TCP socket services • Socket option (keep-alive setting): Yes

FTP server function • Port No. setting: No (Uses default setting)

• Dynamic only

setting)

• Number of Bytes Received at TCP Socket Nos. 1 to 8: Yes

• Data Received Flag: Yes

• Socket high-speed option: No

Converting from Previous Models Section 2-11

Item Specifications in ETN11 mode

Mail send function • The specifications for previous Units apply.

• The mail transmission status is as follows:

• Status of user mail transmission → Status

of transmission condition setting 5

• Status of periodic mail transmission → Sta-

tus of transmission condition setting 6

• Status of mail transmission when error

occurs → Status of transmission condition

setting 7 Mail receive function • Cannot be used Automatic clock adjustment function • Cannot be used DNS server host name • Cannot be used

Note (1) These limitations do not apply when the CPU Bus Unit System Setup

Area format is in ETN21 mode.

(2) When I/O tables are created using one of the new Ethernet Unit models,

the CPU Bus Unit System Setup Area format is in ETN21 mode from the beginning.

Checking the CPU Bus Unit System Setup Area Format

Checking with the CX-Programmer's Software Switch Monitor - Status Tab Page

Converting from Previous Models Section 2-11

Checking with the CX-Programmer's Unit Setup Window

■ Window Display in ETN21 Mode

■ Window Display in ETN11 Mode

■ Checking by Reading Words Allocated in the CIO Area

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

n+17

System Setting Format

Converting from Previous Models Section 2-11

Bit address Format classification

11 10 09 08

0000ETN11 mode 0001ETN21 mode Other Reserved

Changing the CPU Bus Unit System Setup Area Format

The CPU Bus Unit System Setup Area format can be changed in either of the following two ways. Select the method that can be used in the system in which the Unit is to be replaced.

• By means of the CX-Programmer's Unit Setup

• By manipulating the rotary switches for the node address with a precision screwdriver

■ Using the

Change ETN21 Mode Command from the Options Menu in the

I/O Table Window of the CX-Programmer

1. Select Change ETN21 Mode from the Options Menu in the I/O Table Window.

2. The following confirmation message will be displayed. To change the mode, click Yes.

3. After the mode has been changed, the following confirmation message will be displayed. Click OK to restart the Ethernet Unit.

After the Unit has been restarted, it will begin to operate in ETN21 mode.

Converting from Previous Models Section 2-11

■ Manipulating the Rotary Switches for the Node Address with a Precision Screwdriver

Converting from ETN11 Mode to ETN21 Mode

1. Turn OFF the power to the PLC, and set the Ethernet Unit's rotary switches for the node address as follows:

Node address Indicators

×16

0 0 Not lit Not lit Not lit

2. Turn ON the power to the PLC. The Unit's indicators will change as follows:

Node address Indicators

×16

0 0 Not lit Lit Not lit

×6

×16

RUN ERC ERH

3. Set the rotary switches for the node address to 01. There will be no change to the indicators.

Node address Indicators

×6

0 1 Not lit Lit Not lit

×16

RUN ERC ERH

4. Set the rotary switches for the node address to F1. The RUN indicator will begin to flash.

Node address Indicators

×16

F 1 Flashing Lit Not lit

×16

RUN ERC ERH

5. Set the rotary switches for the node address to 01. The Unit mode change function will start, and the ERH indicator will flash for approximately five seconds.

Node address Indicators

×16

0 1 Flashing Lit Flashing

×16

RUN ERC ERH

6. After the mode has been changed, the indicators will appear as shown below, depending on whether the change was completed normally or if an error occurred.

• If the Mode Change was Completed Normally

Node address Indicators

×16

0 1 Flashing Lit Lit

×16

RUN ERC ERH

Converting from Previous Models Section 2-11

• If an Error Occurred in the Mode Change

Node address Indicators

×16

0 1 Flashing Lit Not lit

Note If an error occurs in the mode change, remove the Ethernet Unit,

create the I/O tables, and correct the settings using the procedures described in this section.

7. Turn OFF the power to the PLC and return the Ethernet Unit's rotary switches for the node address to its original setting.

8. Turn ON the power to the PLC.

Node address Indicators

×16

- - Lit Not lit Not lit

×16

RUN ERC ERH

Converting from

ETN21 Mode to ETN11 Mode

1. Turn OFF the power to the PLC, and set the Ethernet Unit's rotary switches for the node address as follows:

Node address Indicators

×16

0 0 Not lit Not lit Not lit

×16

RUN ERC ERH

2. Turn ON the power to the PLC. The Unit's indicators will change as follows:

Node address Indicators

×16

0 0 Not lit Lit Not lit

×16

RUN ERC ERH

3. Set the rotary switches for the node address to 0F. There will be no change to the indicators.

Node address Indicators

×16

0 F Not lit Lit Not lit

×16

RUN ERC ERH

4. Set the rotary switches for the node address to FF. The RUN indicator will begin to flash.

Node address Indicators

×16

F F Flashing Lit Not lit

×16

RUN ERC ERH

5. Set the rotary switches for the node address to 0F. The Unit mode change function will start, and the ERH indicator will flash for approximately five seconds.

Node address Indicators

×16

0 F Flashing Lit Flashing

×16

RUN ERC ERH

6. After the mode has been changed, the indicators will appear as shown below, depending on whether the change was completed normally or if an error occurred.

Converting from Previous Models Section 2-11

• If the Mode Change was Completed Normally

Node address Indicators

×16

0 F Flashing Lit Lit

• If an Error Occurred in the Mode Change

Node address Indicators

×16

0 F Flashing Lit Not lit

Note If an error occurs in the mode change, remove the Ethernet Unit,

create the I/O tables, and correct the settings using the procedures described in this section.

7. Turn OFF the power to the PLC and return the Ethernet Unit's rotary switches for the node address to its original setting.

8. Turn ON the power to the PLC.

Node address Indicators

×16

- - Lit Not lit Not lit

×16

RUN ERC ERH

SECTION 3

CX-Programmer Unit Setup

This section describes how to install the Ethernet Unit and make the initial settings required for operation.

3-1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3-2 FINS/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-3 DNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-4 SMTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3-5 POP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

3-6 Mail Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-7 Send Mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

3-8 Receive Mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

3-9 Auto Adjust Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

3-10 HTTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Setup Section 3-1

3-1 Setup

Item Contents Default

Broadcast Set the method for specifying IP addresses for broadcasting in FINS/

UDP.

• All 1 (4.3BSD): Broadcast with host number set to all ones.

• All 0 (4.2BSD): Broadcast with host number set to all zeros. Normally the default setting should be used.

IP Address Set the local IP address for the Ethernet Unit. 0.0.0.0 (FINS node

Sub-net Mask Set the subnet mask for the Ethernet Unit.

This is required if a method other than the IP address table method is used for address conversion.

Enable CIDR Set the specifications for the subnet mask.

• Disabled: Set for the range of class A, class B, and class C.

• Enabled: Classless setting range (192.0.0.0 to 255.255.255.252)

FINS/UDP Port Specify the local UDP port number to be used for the FINS communica-

tions service. The UDP port number is the number used for UDP identification of the application layer (i.e., the FINS communications service in this case).

• Default (9,600)

• User defined (Setting range: 1 to 65,535) Note: Make the settings so that UDP port number 123 for SNTP does

not overlap with UDP port number 53 for DNS.

FINS/TCP Port Specify the local TCP port number to be used for the FINS communica-

tions service. The TCP port number is the number used for TCP identification of the application layer (i.e., the FINS communications service in this case).

• Default (9,600)

• User defined (Setting range: 1 to 65,535) Note: Make the settings so that TCP port numbers 20 and 21 for the

FTP server, TCP port number 25 for SMTP, TCP port number 110 for POP3, and TCP port number 53 for DNS do not overlap.

All 1 (4.3BSD)

address

192.168.250.)

0.0.0.0 (default subnet

mask for IP address setting)

Disabled

9,600

Setup Section 3-1

Item Contents Default

Conversion Select any of the following as the method for finding and converting IP

Destination IP Address (Change Dynamically)

Baud Rate Select the Ethernet baud rate for the Ethernet Unit.

TCP/IP keep-alive Set the liveness-checking interval. When socket services using either

IP Address Table Set the IP address table that defines the relationship between FINS

IP Router Table Set when the Ethernet Unit is to communicate through the IP router with

FTP Login Sets the login name for connecting to the Ethernet Unit by FTP. None

Password Sets the password for connecting to the Ethernet Unit by FTP. None

Port No. Set the FTP port number for the Ethernet Unit.

High-speed Socket Services

addresses from FINS node addresses. (Enabled for FINS/UDP only.)

• Automatic generation (dynamic): Auto (dynamic)

• Automatic generation (static): Auto (Static)

• IP address table method: Table used

• Combined method: Mixed

Select to dynamically change the remote (destination) IP address for FINS/UDP. To prohibit dynamic changes, deselect this box.

Select either automatic detection or 10Base-T. (For 100Base-TX, select automatic detection.)

FINS/TCP or TCP/IP are used, the connection will be terminated if there is no response from the remote node (either a server or client) within the time set here. (Enabled for socket services using FINS/TCP or TCP/IP only.)

Setting range: 0 to 65,535 minutes This setting applies to the keep-alive setting for each connection set

with the FINS/TCP tab.

node addresses and IP addresses. With FINS/UDP, this is enabled only when the IP address table method

is set as the IP address conversion method.

nodes on another IP network segment.

There is normally no need to change this number. Two ports are used for FTP: a control port and a data transfer port. This

setting sets only the control port, and then the data transfer port uses the number that is one less than the control port.

Selecting this option improves the performance of processing for sending and receiving using specific bits for socket services. For information on communications performance, refer to 6-9-5 Times Required for

Sending and Receiving for Socket Services in the Ethernet Units Construction of Applications Operation Manual. When the High Speed

Option is selected, socket services that are implemented using a CMND(490) instruction will cause an error.

Auto (dynamic)

Checked (Change Dynamically)

Auto

0 (120 minutes)

None

(“CONFIDENTIAL”)

0 (Number 21 is

used.)

Disabled

Note (1) The setting to enable or disable dynamic changing of remote IP address-

es is available for Ethernet Units with Unit Ver. 1.3 or later.

(2) Make settings using the unit settings function in the CX-Programmer (to

be included in version 5.0 and higher) or using the Web function (refer to Appendix G Ethernet Unit Web Function).

(3) The Enable CIDR Option and High Speed Option for performance of

socket service are supported starting with unit version 1.5.

FINS/TCP Section 3-2

3-2 FINS/TCP

FINS/TCP Connection Setup

No. Shows the connection number. This is a network API

Use IP address to protect

Item Contents Default

used when TCP is used for the FINS communications service. It corresponds to a socket in the socket services. Up to 16 can be used at a time, and they are identified by connection numbers 1 to 16. The Ethernet Unit can thus simultaneously execute the FINS communications service by TCP with up to 16 remote nodes.

When this option is selected, if the Ethernet Unit is set for use as a server, and if a connection number other than 0.0.0.0 is set for a destination IP address, any connection request from other than the number set for that IP address will be denied.

Select this option to prevent faulty operation (by FINS commands) from specific nodes from affecting the PLC.

Not protected

FINS/TCP Section 3-2

The following settings can be made for each connection number.

Item Contents Default

FINS/TCP Mode For each connection number, this setting specifies

IP Address • When the Ethernet Unit is used as a server:

Auto allocated FINS node

keep-alive For each connection number, set whether or not the

the Ethernet Unit for use as either a server or a client.

• When the Ethernet Unit is used as a server: The Ethernet Unit opens a connection with that connection number and waits for service requests (FINS commands) from clients. Connection numbers are used in ascending order and allocated to clients in the order connections are made.

• When the Ethernet Unit is used as a client: The Ethernet Unit establishes a connection with the server set as the destination IP address. Once the connection has been established, FINS/TCP is used for FINS communications.

If the option is selected to use IP addresses to protect, set the IP addresses as required at clients from which connection is permitted. If not set for those connections, the default setting of 0.0.0.0 can be used.

• When the Ethernet Unit is used as a client: Set the IP address for the remote Ethernet Unit (i.e., the server) that is to be connected by FINS/ TCP. It is required that an IP address be set for the remote Ethernet Unit.

If the client (normally a personal computer) application supports FINS/TCP, and if FINS node addresses are not fixed, the client will take 0 as its node address. Then, when a FINS command arrives, the number set here (from 239 to 254) will automatically be allocated as the client's FINS node address. For details on automatic allocation of FINS node addresses, refer to the Operation Manual Construc-

tion of Applications.

remote node connection check function is to be used for the FINS/TCP server and client.

If the keep-alive box is checked here, then, when the remote node goes without responding for longer than the monitor time set in the Setup, the connection will be terminated. If a remote node turns OFF without warning, the connection will remain open indefinitely, so this option should be used whenever possible.

Server

0.0.0.0

From 239 to 254, for connection Nos. 1 to 16

Use

For details, refer to SECTION 6 FINS Communications Service in the Opera- tion Manual Construction of Networks.

DNS Section 3-3

3-3 DNS

DNS Server Setup

Item Contents Default

IP Address Set the IP address for the DNS server.

The DNS server is required when specifying the POP3, SMTP, or SNTP servers by host name for the mail send function or mail receive function.

Port No. Set the port to be used for connecting to the DNS

server. This setting does not normally need to be changed.

Retry Timer Set the time to elapse before retrying when a connec-

tion to the DNS server fails. This setting does not normally need to be changed.

None

0 (Number 53 is used.)

0 (10 s)

SMTP Section 3-4

3-4 SMTP

SMTP Server Setup

Item Contents Default

Designation Method

IP Address Set the IP address for the SMTP server used for

Host Name Set the host domain name (i.e., the host name)

Port No. Set the port to be used for connecting to the

Local Mail Address

Use POP before SMTP

Select whether the SMTP server used for sending mail is to be specified by IP address or the host's domain name (i.e., host name).

sending mail. This setting is enabled only when “IP address” is

selected as the method for specifying the server.

for the SMTP server that is to be used for sending mail.

This setting is enabled only when “host name” is selected as the method for specifying the server.

SMTP server that is to be used for sending mail. This setting does not normally need to be

changed. Set the mail address for the Ethernet Unit. None

Select whether or not to use the mail receiving method (POP before SMTP) in which the POP server must be accessed (to receive mail) before the SMTP server is accessed (to send mail).

IP Address

0.0.0.0

None

0 (No. 25 is used.)

Not checked

For details, refer to SECTION 2 Mail Send Function in the Operation Manual Construction of Applications.

POP Section 3-5

3-5 POP

POP Server Setup

Item Contents Default

Designation Method

IP Address Set the IP address for the POP3 server used for

Host Name Set the host domain name (i.e., the host name) for

Port No. Set the port to be used for connecting to the POP3

Account Name Set the account name to be used for sending and

Mail Password Set a password for the account that is to be used

Server Access Interval

Select whether the POP3 server used for receiving mail is to be specified by IP address or the host's domain name (i.e., host name).

receiving mail. This setting is enabled only when “IP address” is

selected as the method for specifying the server.

the POP3 server that is to be used for receiving mail.

This setting is enabled only when “host name” is selected as the method for specifying the server.

server that is to be used for receiving mail. This setting does not normally need to be changed.

receiving mail. Only alphanumeric characters can be used. If no account name is set, the portion of the local e-

mail address to the left of the @ will be used.

for sending and receiving mail. Set the interval for sending and receiving mail. Mail

will be automatically sent and received at the interval set here.

IP Address

0.0.0.0

None

0 (Number 110 is used.)

None

0 (5 minutes)

For details, refer to SECTION 3 Mail Receive Function in the Operation Manual Construction of Applications.

Mail Address Section 3-6

3-6 Mail Address

Destination Mail Address Setup

Item Contents Default

Mail Address 1 Set one of the addresses to which the Ethernet Unit

Mail Address 2 Set one of the addresses to which the Ethernet Unit

For details, refer to SECTION 2 Mail Send Function in the Operation Manual Construction of Applications.

None

is to send mail. (Up to two address can be set.) Note: Mail can be sent to multiple addresses by

punctuating the mail address with commas.

None

is to send mail. (Up to two address can be set.) Note: Mail can be sent to multiple addresses by

punctuating the mail address with commas.

Send Mail Section 3-7

3-7 Send Mail

Item Contents Default

Send Trigger Select a number as the trigger condition for send-

ing mail. Up to eight trigger numbers can be registered.

Use send trigger Sets whether or not the selected mail trigger is to

be enabled.

---

Not checked

Send Mail Section 3-7

Item Contents Default

Mail trigger type (Select only one.)

Mail address Select the destination mail address.

Send user data If this option is selected, user-created data is sent

Send Error Log information

Send status information

Send file data/I/O memory data

Attached file name

Software switch

Word value change

Bit value change

ETN condition

CPU condition

Interval time (Periodic timer)

If this option is selected, mail is sent whenever the Mail Send Switch turns ON.

The Mail Send Switch is bit 03 of word n in the words allocated for CPU Bus Units. (n = 1500 + 25 x unit number)

If this option is selected, the value of a specified address is compared with a standard comparison value using one of the following comparison functions, and mail is sent whenever the condition is satisfied.

=, <>, <, <=, >=, > Select the address for storing the comparison

value from the drop-down list. If this option is selected, mail is sent whenever a

specified bit turns ON or whenever it turns OFF. Select the bit address from the drop-down list

below. If this option is selected, mail is sent whenever a

new error is stored in the Ethernet Unit's error log. If this option is selected, mail is sent whenever any

of the following conditions occur at the CPU Unit. The drop-down list at the right can be used to

select which of these three are to serve as mail triggers.

• When a non-fatal error occurs

• When a fatal error occurs

• When the operating mode is changed If this option is selected, mail is sent at fixed time

intervals. The time interval (in minutes) can be set in the

interval time box.

The mail destination is the one set under the Mail Address tab.

in the body of the mail. The location for storing the user-created data is

set by the user-defined mail address setting below.

If this option is selected, the error log is included in the body of the mail.

If this option is selected, status information is included in the body of the mail.

If this option is selected, any of the following types of data can be sent as file attachments to e-mail.

• I/O memory data (.IOM)

• I/O memory data (.TXT)

• I/O memory data (.CSV)

• File data (any file) Select the type of data to be attached from the

checkboxes below. If I/O memory data is selected, then also select, in “I/O memory data” below, the address and range of data to be sent.

If the above setting is checked so that files can be sent as attachments, then specify the name of the file that is to be sent.

Checked

Not checked

Address 1

Not checked

None

Receive Mail Section 3-8

Item Contents Default

Interval time When “Periodic

timer” is set as the mail trigger type

When “Bit value change” or “Word value change” is set as the mail trigger type

Set the time interval for sending mail.

1 to 1,440 (10 to 14,400 min), in units of 10 min

Set the time interval for monitoring the value at a specified address.

1 to 1,000 (1 to 1,000 s), in units of 1 s

Default: 0000

0 (10 minutes)

0 (1 second)

For details, refer to SECTION 2 Mail Send Function in the Operation Manual Construction of Applications.

3-8 Receive Mail

Posting Mail Address Protection Setting

Item Contents Default

Protect by mail address

Source mail Set the mail address if the option has been

If this option is selected, mail from sources other than specified addresses is denied.

Use the “Mail address” text box below to specify the sources from which to receive mail.

checked to protect using mail address. Mail will not be accepted from sources other

than the mail address set here.

Not checked

None

Receive Mail Section 3-8

Receive Attached File Setting

Item Contents Default

Receive a specified extension file only

OBJ If this option is selected, an OBJ file (which can

STD If this option is selected, an STD file containing

IOM If this option is selected, an IOM file containing

CSV If this option is selected, CSV files (created by

TXT If this option is selected, text files can be

Custom 1 to 3 If this option is selected, files with extensions

If this option is selected, only file attachments with specified extensions is accepted with mail.

Use the checkboxes below to select which file extensions are to be accepted. Multiple extensions can be selected.

be created using the CX-Programmer) containing all cyclic task and interrupt task programs in the CPU Unit will be received.

the PLC Setup, registered I/O tables, routing tables, Unit Setups, etc. (which can be read from the CPU Unit using the CX-Programmer) will be received.

bit data from beginning to end of a memory area (which can be created using the CX-Programmer) will be received.

programs such as Excel) can be received.

received.

specified by the user can be received.

Not checked

Checked

Receive Command Setting

Item Contents Default

Receive a specified command only

FileWrite If checked, files can be written. Not checked FileRead If checked, files can be read. Checked FileDelete If checked, files can be deleted. Not checked FileList If checked, files can be listed. Checked UMBackup If checked, the user program can be

PARAMBackup If checked, the parameter area can be

IOMWrite If checked, writing to the I/O memory

IOMRead If checked, the I/O memory area can be

ChangeMode If checked, the operating mode can be

ErrorLogRead If checked, the error log can be read. Checked ErrorLogClear If checked, the error log can be cleared. Checked MailLogRead If checked, the mail log can be read. Checked MailLogClear If checked, the mail log can be cleared. Checked Test If checked, the mail receive test can be

FinsSend If checked, FINS commands can be

If this option is selected, only specified remote mail commands are executed.

The commands to be received can be specified in the checkboxes below.

backed up.

area is permitted.

read.

changed.

executed.

Checked

Not checked

Checked

Not checked

Checked

Not checked

Auto Adjust Time Section 3-9

For details, refer to SECTION 3 Mail Receive Function in the Operation Manual Construction of Applications.

3-9 Auto Adjust Time

SNTP Server Setup

Item Contents Default

Obtain clock data from SNTP server

Auto Adjustment Set the time at which the SNTP server is to be

Designation Method

IP Address Set the IP address for the SNTP server that is to be

Host Name Set the host domain name (i.e., the host name) for

Port No. Set the port number for connecting to the SNTP

If this option is selected, the CPU Unit's clock is set to the time at the SNTP server's clock.

The clock can be changed only for the CPU Unit to which the Ethernet Unit is mounted.

accessed to synchronize the clocks. When the time that is set here arrives, the SNTP

server is accessed and the CPU Unit clock is adjusted to match the SNTP server clock.

Select whether the SNTP server used for automatic clock adjustment is to be specified by IP address or by host domain name (i.e., by host name).

used for automatic clock adjustment. This setting is enabled only when server specification

by IP address has been selected.

the SNTP server that is to be used for automatic clock adjustment.

This setting is enabled only when server specification by host name has been selected.

server that is to be used for automatic clock adjustment. This setting does not normally need to be changed.

Not checked

0:0:0

IP Address

0.0.0.0

None

0 (Number 123 is used.)

HTTP Section 3-10

Item Contents Default

Retry Timer Set the time to elapse before retrying when a connec-

Time Lag Adjustment

tion to the SNTP server fails. This setting does not normally need to be changed.

This sets in the CPU Unit's clock data the time difference made up from the SNTP server's clock data.

To use the clock data from the SNTP server just as it is, input 0.

0 (10 s)

+0:0

For details, refer to SECTION 5 Automatic Clock Adjustment Function in the Operation Manual Construction of Applications.

3-10 HTTP

HTTP Server Setup

Item Contents Default

Use WEB functions

Password Sets the password for accessing

Port No. Sets the port No. used to connect to

Select to use or prohibit the Web function. Deselect this option to prohibit use of the Web function.

the Ethernet Unit’s settings and status monitoring information using a Web browser.

the Web browser.

Checked (Web function is used.)

None (“ETHERNET” is used.)

0 (80 is used.)

For details, refer to Appendix G Ethernet Unit Web Function.

Note (1) The HTTP Server Setup is supported by Ethernet Units with Unit Ver. 1.3

or later.

(2) Make settings using the unit settings function in the CX-Programmer (to

be included in version 5.0 and higher) or using the Web function (refer to Appendix G Ethernet Unit Web Function).

Omron CS1W-ETN21, CJ1W-ETN21 OPERATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual

CS1W-ETN21 (100Base-TX) CJ1W-ETN21 (100Base-TX) Ethernet Units Construction of Networks

Notice:

Unit Versions of CS/CJ-series

About this Manual:

Relevant Manuals

Read and Understand this Manual

PRECAUTIONS

1 Intended Audience

2 General Precautions

3 Safety Precautions

4 Operating Environment Precautions

5 Application Precautions

6 Conformance to EC Directives

6-1 Applicable Directives

6-2 Concepts

1-1 Ethernet Unit Function Guide

1-1-1 Overall System Configuration Example

1-1-2 Determining the Objectives

1-2 Features

1-3 System Configuration

1-3-1 System Configuration

1-3-2 Devices Required for Constructing a Network

1-3-3 Setup Area and Related Peripheral Devices

1-4 Specifications

1-4-1 General Specifications

1-4-2 Dimensions

1-4-3 Software Configuration

1-5 Overview of Communications Functions

1-5-1 FINS Communications Service

1-5-2 Socket Services

1-5-3 FTP Server Function

1-5-4 Mail Send Function

1-5-5 Mail Receive Function

1-5-6 Automatic Clock Adjustment Function

1-5-7 Specifying Servers by Host Name

1-6 Nomenclature and Functions

1-6-1 Component Names

1-6-2 Indicators

1-7 Comparison with Previous Models

1-8 Unit Version Upgrade Information

2-1 Overview of Startup Procedure

2-2 Switch Settings

2-2-1 CS-series Ethernet Units

2-2-2 CJ-series Ethernet Units

2-3 Mounting to a PLC

2-3-1 Mounting to a CS-series PLC

2-3-2 Mounting to a CJ-series PLC

2-4 Network Installation

2-4-1 Basic Installation Precautions

2-4-2 Recommended Products

2-4-3 Precautions

2-4-4 Using Contact Outputs (Common to All Units)

2-5 Connecting to the Network

2-5-1 Ethernet Connectors

2-5-2 Connecting the Cable

2-6 Creating I/O Tables

2-6-1 I/O Table Overview

2-6-2 Connecting Programming Devices to the PLC

2-6-3 Procedure for Creating I/O Tables

2-7 Unit Setup Procedure

2-7-1 Using the CX-Programmer

2-7-2 Using the Web Browser Setting Function

2-8 Basic Settings

2-9 Unit Setup for Particular Applications

2-10 Communications Test

2-10-1 PING Command

2-10-2 Ethernet Unit

2-10-3 Host Computer

2-11 Converting from Previous Models

3-1 Setup

3-2 FINS/TCP

3-3 DNS

3-4 SMTP

3-5 POP

3-6 Mail Address

3-7 Send Mail