Omron CS1W-DRM21, CJ1W-DRM21, CS1W-DRM21-V1 Operation Manual

Cat. No. W380-E1-08

SYSMAC CS/CJ Series
CS Series: CS1W-DRM21(-V1)
CJ Series: CJ1W-DRM21

DeviceNet Units

OPERATION MANUAL

CS-series DeviceNet Unit: CS1W-DRM21(-V1) CJ-series DeviceNet Unit: CJ1W-DRM21

Operation Manual

Revised November 2010

iv

Notice:

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

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

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

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

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

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

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

moderate injury, or property damage.

OMRON Product References

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

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

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

Visual Aids

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

Reference Indicates supplementary information on related topics that may be of interest

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

tion of the product.

to the user.

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

v

Trademarks and Copyrights

r
f

DeviceNet is a registered trademark of the Open DeviceNet Vendor Association, Inc.
Windows, Windows 95, Windows 98, Windows Me, Windows NT, and Windows 2000 are registered

trademarks of the Microsoft Corporation.
Other product names and company names in this manual are trademarks or registered trademarks of

their respective companies.
The copyright of the DeviceNet Unit belongs to OMRON Corporation.

 OMRON, 2000

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.

vi

TABLE OF CONTENTS

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

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

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

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

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

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

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

SECTION 1

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

1-1 Overview of DeviceNet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 DeviceNet Unit Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1-3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1-4 Comparison with Previous Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1-5 Outline of the Configurator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

1-6 Basic Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1-7 List of Usage Methods by Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

SECTION 2

Nomenclature and Installation . . . . . . . . . . . . . . . . . . . . 49

2-1 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-2 Installing the DeviceNet Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

SECTION 3

Allocated CIO and DM Words . . . . . . . . . . . . . . . . . . . . 61

3-1 Overview of Word Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3-2 Allocated CIO Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-3 Allocated DM Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

SECTION 4

Remote I/O Master Communications . . . . . . . . . . . . . . . 95

4-1 Master Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

4-2 Scan List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4-3 Fixed Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

4-4 User-set Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

4-5 Starting and Stopping Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . 120

4-6 Example of Ladder Programming for Remote I/O Communications . . . . . . . . . . . 120

4-7 Errors that May Occur in Remote I/O Communications . . . . . . . . . . . . . . . . . . . . 122

vii

TABLE OF CONTENTS

SECTION 5

Remote I/O Slave Communications. . . . . . . . . . . . . . . . . 125

5-1 Slave Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

5-2 Fixed Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

5-3 User-set Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

SECTION 6

Message Communications . . . . . . . . . . . . . . . . . . . . . . . . 137

6-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

6-2 FINS Commands and Responses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

6-3 Using FINS Message Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

6-4 Sending Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

6-5 Receiving Explicit Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

SECTION 7

Other Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

7-1 Connecting to the CX-Programmer via the DeviceNet . . . . . . . . . . . . . . . . . . . . . 182

7-2 Memory Card Backup Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

7-3 Simple Backup Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

SECTION 8

Communications Timing . . . . . . . . . . . . . . . . . . . . . . . . . 193

8-1 Remote I/O Communications Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

8-2 Message Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

SECTION 9

Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . 205

9-1 Troubleshooting with the DeviceNet Unit Indicators . . . . . . . . . . . . . . . . . . . . . . 206

9-2 Error Log Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

9-3 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

9-4 Maintenance and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Appendices

A Allocation Differences from C200H DeviceNet Master Units . . . . . . . . . . . . . . . 235

B DeviceNet Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

C FINS Commands and Responses for DeviceNet Units . . . . . . . . . . . . . . . . . . . . 247

D Multi-vendor Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

E DeviceNet Explicit Message Send Command for Other Manufacturer Nodes . . 263

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

viii

About this Manual:

This manual describes the installation and operation of CS1W-DRM21(-V1) (see note) DeviceNet Unit
for SYSMAC CJ-series PLCs and the CJ1W-DRM21 DeviceNet Unit for SYSMAC CJ-series PLCs,
and includes the sections described below.

Note In this manual, both the CS1W-DRM21 and the CS1W-DRM21-V1 are indicated by the following

notation: CS1W-DRM21(-V1)

Please read this manual and all manuals for related products carefully and be sure you understand the
information provided before attempting to install and operate the DeviceNet Unit. Be sure to read the
precautions provided in the following section.

Section 1 provides an overview of the DeviceNet network, including features, specifications, and sys­tem.

Section 2 describes the nomenclature and installation of the DeviceNet Unit.

Section 3 describes the words allocated to the DeviceNet Unit in the CIO Area and DM Area. These

words both enable controlling the DeviceNet Unit and accessing Unit and network status.

Section 4 describes the remote I/O communications performed as a master by the DeviceNet Unit.

Section 5 describes the remote I/O communications performed as a slave by the DeviceNet Unit.

Section 6 describes message communications using FINS commands sent from the ladder program

in the CPU Unit of the PLC.

Section 7 describes connecting to CX-Programmer via the DeviceNet and the Memory Card backup
function.

Section 8 describes the time required for remote I/O communications and message communications.

Section 9 describes error processing, periodic maintenance, and troubleshooting procedures needed

to keep the DeviceNet network operating properly. We recommend reading through the error process­ing procedures before operation so that operating errors can be identified and corrected more quickly.

The Appendices provide information on allocation differences with C200H-series DeviceNet Units,
DeviceNet connections, remote programming and monitoring, Memory Card backups, FINS com­mands and responses, sending DeviceNet explicit message to Non-OMRON nodes, and multi-vendor
applications.

The following manuals provide information on the DeviceNet and OMRON DeviceNet products.

Manual Products Contents Cat. No.

CS/CJ-series DeviceNet
Unit Operation Manual
(This manual)

DeviceNet
Operation Manual

DeviceNet Configurator
Ver. 2.@
Operation Manual

DRT2 Series DeviceNet
Slaves

Operation Manual
DeviceNet Slaves Opera-

tion Manual

CS1W-DRM21(-V1) and CJ1W-DRM21
DeviceNet Units

CVM1-DRM21-V1 DeviceNet Master Unit
C200HW-DRM21-V1 DeviceNet Master Unit
CQM1-DRT21 I/O Link Unit
DRT1-series DeviceNet Slaves
GT1-series DeviceNet Slaves

WS02-CFDC1-E DeviceNet Configurator
3G8F5-DRM21-E ISA Board
3G8E2-DRM21-EV1 PCMCIA Board

DRT2-ID/OD/MD32SL(H)(-1)
DRT2-MD16S
DRT2 Series

C200HW-DRT21
CQM1-DRT21
DRT1 Series

Information on CS/CJ­series DeviceNet Units.

Information on C200H­series, CVM1, and CV­series DeviceNet Units, as
well as general DeviceNet
communications specifica­tions and wiring methods.

Information on using the
Configurator.

Information on DRT2-series
DeviceNet Slaves.

Information on DeviceNet
Slaves.

W380

W267

W382

W404

W347

ix

Manual Products Contents Cat. No.

DeviceNet MULTIPLE I/O
TERMINAL Operation
Manual

DeviceNet Master Units
Operation Manual

SYSMAC CS/CJ/CP/NSJ
Series Communications
Commands Reference
Manual

CX-Programmer
Operation Manual

About this Manual, Continued

DRT1-COM
GT1 Series

C200HW-DRM21-V1
CVM1-DRM21-V1

CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H,
CS1D-CPU@@H, CS1D-CPU@@S,
CJ1H-CPU@@H-R, CJ1G-CPU@@,
CJ1M-CPU@@, CJ1G-CPU@@P,
CJ1G/H-CPU@@H, CJ2H-CPU6@-EIP,
CJ2H-CPU6@, CJ2M-CPU@@,
CS1W-SCU@@-V1, CS1W-SCB@@-V1,
CJ1W-SCU
CP1H-XA@@@@-@, CP1H-Y@@@@-@,
CP1L-M/L@@@-@, CP1E-E@@D@-@,
CP1E-N@@D@-@, NSJ@-@@@@(B)-G5D,
NSJ@-@@@@(B)-M3D

CXONE-AL@@C-V4/AL@@D-V4 Information on setting and

@@

-V1,

CP1H-X@@@@-@,

Information on MULTIPLE
I/O TERMINALs, one type
of DeviceNet slave.

Information on C200H and
CVM1/CV-series DeviceNet
Master Units.

Describes the communica­tions commands used with
CS-series, CJ-series, and
CP-series PLCs and NSJ
Controllers.

monitoring networks, such
as the use of routing tables.

W348

W379

W342

W446

!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.

x

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.

xi

Application Considerations

SUITABILITY FOR USE

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

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

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

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

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

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

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

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

PROGRAMMABLE PRODUCTS

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

xii

Disclaimers

CHANGE IN SPECIFICATIONS

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

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

DIMENSIONS AND WEIGHTS

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

PERFORMANCE DATA

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

ERRORS AND OMISSIONS

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

xiii

xiv

PRECAUTIONS

This section provides general precautions for using the DeviceNet Unit and related devices.

The information contained in this section is important for the safe and reliable application of the DeviceNet Unit
and Programmable Controller (PLC) You must read this section and understand the information contained before
attempting to set up or operate a DeviceNet Unit as part of a PLC.

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

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

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

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

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

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

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

xv

Intended Audience 1

1 Intended Audience

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

• Personnel in charge of installing FA systems.

• Personnel in charge of designing FA systems.

• Personnel in charge of managing FA systems and facilities.

2 General Precautions

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

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

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

This manual provides information for installing and operating the DeviceNet
Unit. Be sure to read this manual before operation and keep this manual close
at hand for reference during operation.

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

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

3 Safety Precautions

!WARNING Never attempt to disassemble a Unit or touch the inside of Unit while power is

being supplied. Doing so may result in serious electrical shock or electrocu­tion.

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

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

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

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

xvi

Operating Environment Precautions 4

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

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

!WARNING The CPU Unit refreshes I/O even when the program is stopped (i.e., even in

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

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

• Changing present values in memory from a Programming Device.

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

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

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

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

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

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

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

4 Operating Environment Precautions

Do not install the Unit in any of the following locations.

• Locations subject to direct sunlight.

• Locations subject to temperatures or humidities 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 salt.

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

• Locations subject to shock or vibration.

Provide proper shielding when installing in the following locations:

• Locations subject to static electricity or other sources of noise.

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radiation.

• Locations near to power supply lines.

xvii

Application Precautions 5

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

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

5 Application Precautions

Observe the following precautions when using the DeviceNet Unit.

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

fatal injury. Always heed these precautions.

• Always connect to a class-3 ground (100
Units.

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

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

• Install double safety mechanisms to ensure safety against incorrect sig­nals that may be produced by broken signal lines or momentary power
interruptions.

• Enable the scan list to before operating the system.

• When adding a new node to the network, make sure that the baud rate is
the same as other nodes.

• Use specified communications cables.

• Do not extend connection distances beyond the ranges given in the spec­ifications.

• Always turn OFF the power supply to the personal computer, Slaves, and
Communications Units before attempting any of the following.

• Mounting or dismounting the DeviceNet Unit, Power Supply Units, I/O
Units, CPU Units, or any other Units.

• Assembling a Unit.

• Setting DIP switches or rotary switches.

• Connecting or wiring the cables.

• Connecting or disconnecting connectors.

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

• Be sure that all the mounting screws, terminal screws, Unit mounting
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.

• Always use the power supply voltage specified in this manual.

Ω or less) when installing the

xviii

Application Precautions 5

• Double-check all the wiring and connection of terminal blocks and con­nectors before mounting the Units.

• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals.

• 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.

• Do not pull on the communications cables.

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

• Be sure to wire communications cable inside ducts.

• Use appropriate communications cables.

• Take appropriate measures to ensure that the specified power with the
rated voltage and frequency is supplied 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.

• Double-check all the wiring and switch settings before turning ON the
power supply.

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

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

• Changing the operating mode of the PLC.

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

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

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

• When transporting or storing the product, cover the PCBs with electrically
conductive materials to prevent LSIs and ICs from being damaged by
static electricity, and also keep the product within the specified storage
temperature range.

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

• Do not attempt to disassemble, repair, or modify any Units.

xix

Conformance to EC Directives 6

6 Conformance to EC Directives

6-1 Applicable Directives

•EMC Directives

6-2 Concepts

EMC Directives

OMRON devices that comply with EC Directives also conform to the related
EMC standards so that they can be more easily built into other devices or
machines. 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 in which the OMRON devices are installed.
The customer must, therefore, perform final checks 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 EMS EMI

CS1W-DRM21(-V1) EN61000-6-2 EN61000-6-4
CJ1W-DRM21

6-3 Conformance to EC Directives

DeviceNet products that meet EC directives must be installed as follows:

1,2,3... 1. DeviceNet Units are designed for installation inside control panels. All De-

viceNet Units must be installed within control panels.

2. Used reinforced insulation or double insulation for the DC power supplies
used for the communications power supply, internal circuit power supply,
and the I/O power supplies.

3. DeviceNet products that meet EC directives also meet the common emis­sion standard (EN61000-6-4). When DeviceNet products are built into
equipment, however, the measure necessary to ensure that the standard
is met will vary with the overall configuration of the control panel, the other
devices connected to the control panel, and other conditions. You must
therefore confirm that EC directives are met for the overall machine or de­vice, particularly for the radiated emission requirement (10 m).

The following examples show means of reducing noise.

1,2,3.... 1. Noise from the communications cable can be reduced by installing a ferrite

core on the communications cable within 10 cm of the DeviceNet Unit.

xx

Conformance to EC Directives 6

Ferrite Core (Data Line Filter): 0443-164151 (manufactured by

Impedance specifications
25 MHZ: 156 Ω
100 MHZ: 250 Ω

30 mm

13 mm

29 mm

Fair-Rite Products Co., Ltd.)

33 mm

2. Wire the control panel with as thick and short electric lines as possible and
ground to 100 Ω min.

3. Keep DeviceNet communications cables as short as possible and ground
to 100 Ω min.

xxi

Conformance to EC Directives 6

xxii

SECTION 1

Features and System Configuration

This section provides an overview of the DeviceNet network, including features, specifications, and system configurations.

1-1 Overview of DeviceNet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Overall System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-1-2 Applicable Units and DeviceNet Functions . . . . . . . . . . . . . . . . . . . 6

1-1-3 Masters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-1-4 Types of Slave. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-1-5 DeviceNet Configurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1-2 DeviceNet Unit Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1-3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1-3-1 DeviceNet Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1-3-2 Comparison between CS1W-DRM21(-V1) and CJ1W-DRM21 . . . 32

1-4 Comparison with Previous Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1-5 Outline of the Configurator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

1-5-1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

1-5-2 Configurator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

1-6 Basic Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1-6-1 Network Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1-6-2 Hardware Preparations for Communications . . . . . . . . . . . . . . . . . . 40

1-6-3 Creating Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

1-6-4 Procedures Prior to Starting Communications . . . . . . . . . . . . . . . . . 42

1-7 List of Usage Methods by Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

1

Overview of DeviceNet Section 1-1

1-1 Overview of DeviceNet

DeviceNet is a multi-bit, multi-vendor network that combines controls and data
on a machine/line-control level and that conforms to DeviceNet open field net­work specifications.

Three types of communications are supported: 1) Remote I/O master commu­nications that automatically transfer I/O between slaves and the CPU Unit to
which a DeviceNet Unit is mounted without any special programming in the
CPU Unit, 2) Remote I/O slave communications that automatically transfer I/O
between the Master and the CPU Unit to which a DeviceNet Unit is mounted,
and 3) Message communications that read/write messages, control operation,
or perform other functions for other CPU Units to which a DeviceNet Unit is
mounted and slaves. Message communications are achieved by executing
specific instructions (SEND (192), RECV (193), and CMND (194)) from the
program in the CPU Unit to which the DeviceNet Unit is mounted.

DeviceNet functions

1,2,3... 1. Without the Configurator Software Tool

Remote I/O master communications

Remote I/O slave communications

Message communications

Fixed allocations

User-set allocations

Fixed allocations

User-set allocations

Explicit message communications

FINS message communications

The following functions are supported with a CS/CJ-series DeviceNet Unit.

a) I/O area words can be flexibly allocated for remote I/O Master and

Slave communications. Three types of fixed allocations as well as

user-set allocations through allocated DM Area words are possible.
b) More than one DeviceNet Unit can be mounted under a single PLC.
c) More than one DeviceNet Unit can be connected in a single network.

With the Configurator, remote I/O can be allocated in any order, i.e.,

not necessarily in the other of node addresses.
Note The Configurator that is connected through a dedicated Board or

Card uses one node in the DeviceNet network. It does not use a
node if it is connected by a serial line.

2. A CS/CJ-series DeviceNet Unit can function as either a master or slave in
remote I/O communications. Both can be used simultaneously.

3. With a CS/CJ-series DeviceNet Unit, the DeviceNet network can be treat­ed exactly like a Controller Link, Ethernet, or other network for message
communications or remote programming and monitoring by a CX-Pro­grammer.

2

Overview of DeviceNet Section 1-1

1-1-1 Overall System Configuration

DeviceNet Unit or
DeviceNet Master Unit

CS Series

CS1W-DRM21(-V1)

CJ Series

CJ1W- DRM21

DeviceNet
Configurator
(personal com­puter)

: T-branch Taps or multi-drop connections

CQM1

C200HZ/HX/HG/E/HS:

C200HW-DRM21-V1

CVM1/CV Series:

CVM1-DRM21-V1

I/O Link
Unit

Photoelectric
sensors, proximi­ty sensors, limit
switches, etc.

Input
Terminal

Output
Terminal

Solenoids,
valves, etc.

Photoelectric
sensors, proximi­ty sensors, limit
switches, etc.

Input Remote
Adapter (used
with Input Block)

Output Remote
Adapter (used
with Output
Block)

Solenoids,
valves, etc.

Photoelectric
sensors or prox­imity sensors
with connectors

Photoelectric
sensors,
proximity
sensors, limit
switches, etc.

Sensor
Terminal

Environment-re­sistant Terminal
(Inputs, outputs,
or mixed I/O)

Solenoids,
valves, etc.

Analog
Input
Terminal

Analog sensors,
etc.

Master Features

DeviceNet Unit or
DeviceNet Master Unit

(See note.)

Analog
Output
Terminal

Inverters,
valves, etc.

Temper­ature In­put Ter­minal

Thermocouple,
platinum resistance
thermometer

Bar code
readers, etc.

C200H I/O Link Unit

RS-232C
Unit

Inputs Outputs Outputs

MULTIPLE I/O TERMINAL

Inputs

Note The Configurator is required if more than one Master is connected in a single

network when a CVM1-DRM21-V1 or C200HW-DRM21-V1 is used.

DeviceNet Master Units and DeviceNet Units

Support remote I/O communications between OMRON PLCs (CS-series, CJ­series, CVM1, CV-series, or C200HX/HG/HE/HS) and slaves.

Support message communications between OMRON PLCs, or between an
OMRON PLC and slaves and masters from other companies.

VME Master Boards

Supports remote I/O communications between a VME System and slaves.

3

Overview of DeviceNet Section 1-1

Configurator Features

• Enables user-set allocations for remote I/O (choice of node address order,
2 area allocations, etc.).

• Enables serial connection to the Programming Device Port of a PLC.

• Enables user settings for DeviceNet remote I/O communications connec­tions.

• Enables multiple Masters on a single PLC.

• Enables multiple Masters in a single network.

Slave Features

I/O Terminals

• Provide general-purpose I/O via terminal blocks (M3).

• Available in the following models:

• 8-point Transistor Input Terminal

• 16-point Transistor Input Terminal

• 8-point Transistor Output Terminal

• 16-point Transistor Output Terminal

Environment-resistant Terminals

• Improved I/O Terminals that conform to IP66 for spatter-, water-, and oil­resistance.

• Available in the following models:

• 8-point Transistor Input Terminal

• 8-point Transistor Output Terminal

• 16-point Transistor I/O Terminal (8 inputs and 8 outputs)

Remote Adapters

• Used in combination with G70D and other I/O Blocks to handle relay out­puts, power MOS FET Relay outputs, etc.

• Available in 16-point input and 16-point output models.

I/O Link Units

• More than one I/O Link Unit can be mounted to a CQM1 PLC.

• Link 16 inputs and 16 outputs between the PLC and the Master.

Sensor Terminals

• Accept inputs from photoelectric and proximity sensors with connectors.

• Available in 16-point input and 8-point input/8-point output models.

• Output signals can be used for sensor teaching and external diagnosis.

Analog Input Terminals

• Convert analog inputs to binary.

• Switchable between 2 and 4 input points using the DIP switch.

• Handle inputs of 0 to 5 V, 1 to 5 V, 0 to 10 V, –10 to +10 V, 0 to 20 mA, or
4to20mA.

• Available in models with a resolution of either 1/6,000 or 1/3,000.

Analog Output Terminals

• Convert binary data to analog outputs.

• Provides outputs of 1 to 5 V, 0 to 10 V, –10 to +10 V, 0 to 20 mA, or 4 to
20mA.

4

Overview of DeviceNet Section 1-1

• Available in models with a resolution of 1/6,000.

Temperature Input Terminals

• Temperature data is input as binary data for 4 inputs.

• Thermocouple and platinum resistance thermometer inputs are available.

C200H I/O Link Units

• Special I/O Slaves that mount to C200HX/HG/HE PLCs and read/write
data from the Master to the specified words in the CPU Unit.

• Read and write areas specified for up to 512 bits each (32 words each).

• Any memory area words can be read or written using DeviceNet explicit
messages.

RS-232C Units

• Special I/O Slaves that provide two RS-232C ports and control I/O from
the Masters.

MULTIPLE I/O TERMINALs

• Multiple I/O Units can be combined under a Communications Unit and
treated as a single Slave.

• Special I/O Units, such as Analog I/O Units, and High-speed Counter
Units are also available.

5

Overview of DeviceNet Section 1-1

1-1-2 Applicable Units and DeviceNet Functions

Remote I/O Masters

DeviceNet Unit (Master)

CPU Unit

Remote I/O communications

DeviceNet

Slaves

Item Master Model Without Configurator With Configurator

Max. No.
of Slave
nodes per
Master

Max. No.
of control
points per
Master

CS Series CS1W-DRM21(-V1) 63 nodes
CJ Series CJ1W-DRM21
CVM1, CV Series CVM1-DRM21-V1
CS Series,

C200HX/HG/HE
C200HS 32 nodes 63 nodes
CS Series CS1W-DRM21(-V1) 2,048 pts (64 input /64

CJ Series CJ1W-DRM21

C200HW-DRM21-V1 50 nodes 63 nodes

32,000 pts (500
output words) or
16,000 pts (500 input/
500 output words)

words x 4 blocks)

Max. No.
of I/O
points per
Slave con­trollable by
Master

Remote
I/O alloca­tion areas

CVM1, CV Series CVM1-DRM21-V1 2,048 pts (64 input/ 64

output words)

CS Series,
C200HX/HG/HE

C200HS 1,024 pts (32 input/32

CS Series CS1W-DRM21(-V1) 100 input/100 output words
CJ Series CJ1W-DRM21
CVM1, CV Series CVM1-DRM21-V1 32 input/32 output words
CS Series,

C200HX/HG/HE
C200HS
CS Series CS1W-DRM21(-V1) CS/CJ DeviceNet

CJ Series CJ1W-DRM21

CVM1, CV Series CVM1-DRM21-V1 DeviceNet Area User-allocated
CS Series,

C200HX/HG/HE
C200HS

C200HW-DRM21-V1 1,600 pts (50 input/50

output words)

output words)

C200HW-DRM21-V1

words in CIO Area,
and user-allocated
words in CIO Area,
DM Area, and other
areas.

C200HW-DRM21-V1 C200H DeviceNet

words in CIO Area
(including dedicated
words/ bits)

6,400 (100 words x

4 blocks

Without messages:

4,800 pts

With messages:

1,600 pts

1,280

User-allocated

words in CIO Area,

DM Area, and other

areas.

words in CIO Area,

DM Area, and other

areas.

6

Overview of DeviceNet Section 1-1

Remote I/O Slaves (only Units Mounted in a PLC)

DeviceNet Unit (Master)

CPU Unit

IN area OUT area

Item CPU Unit to

Max. No. of I/O pts
per Slave

Allocation areas in
the CPU Unit to
which this Slave is
mounted

Remote I/O communications

DeviceNet Unit (Slave)

DeviceNet

Slaves

CPU Unit

IN area

Unit Model Without the

which a Slave is

Configurator

mounted

CS Series CS1W-DRM21(-V1) 32 pts (1 input/

1 output word) or

CJ Series CJ1W-DRM21

3,200 pts (100
input/100 output

4,800 pts
(100 input words x
2/100 output words
x 1)

words)

CS Series,

C200HW-DRT21 1,024 pts (32 input/32 output words)

C200HX/HG/HE
CQM1H

CQM1-DRT21 32 pts (1 input/1 output word)

CQM1 Series
CS Series CS1W-DRM21(-V1) CIO, WR, DM, EM, HR
CJ Series CJ1W-DRM21
CS Series,

C200HW-DRT21 CIO, DM, EM, AR, LR, T/C

C200HX/HG/HE
CQM1H

CQM1-DRT21 CIO

CQM1 Series

OUT area

With the

Configurator

7

Overview of DeviceNet Section 1-1

Message Communications

Master Master

RS-232C
Interface Unit

Communications Instructions

Master Unit model Send Receive FINS

commands

CS Series CS1W-DRM21(-V1) SEND(192) RECV(193) CMND(194)
CJ Series CJ1W-DRM21
CVM1, CV Series CVM1-DRM21-V1 SEND(192) RECV(193) CMND(194)
CS Series,

C200HX/HG/HE
C200HS ---

C200HW-DRM21-V1 None None IOWR

Item Master model Model Capacity

Max. No. of nodes per
Master for message
communications using
FINS commands

Max. No. of nodes per
Master for message
communications using
explicit messages

Max. message length CS Series CS1W-DRM21(-V1) SEND(192): 267 words

CS Series CS1W-DRM21(-V1) 62 nodes
CJ Series CJ1W-DRM21

CVM1, CV Series CVM1-DRM21-V1 8 nodes
CS Series,

C200HX/HG/HE
C200HS Not supported
CS Series CS1W-DRM21(-V1) 63 nodes
CJ Series CJ1W-DRM21
CVM1, CV Series CVM1-DRM21-V1 63 nodes
CS Series, C200HX/

HG/HE
C200HS Not supported

CJ Series CJ1W-DRM21

CVM1, CV Series CVM1-DRM21-V1 SEND(192): 76 words

CS Series,
C200HX/HG/HE

C200HW-DRM21-V1 8 nodes

C200HW-DRM21-V1 63 nodes

C200HW-DRM21-V1 IOWR(223): 160 bytes (start-

(Node address 0 cannot be
used in FINS communications.)

RECV(193): 269 words
CMND(194): 542 bytes (start-

ing with command code)

RECV(193): 78 words
CMND(194): 160 bytes

(starting with command code)

ing with command code)

Note FINS message communications are supported between any two PLCs with a

CS/CJ-series DeviceNet Unit (CS1W-DRM21(-V1)/CJ1W-DRM21). They are
not supported for PLCs with a C200H DeviceNet Master Unit (C200HW-

8

Overview of DeviceNet Section 1-1

DRM21-V1) or a CVM1/CV-series DeviceNet Master Unit (CVM1-DRM21­V1). Refer to 6-3 Using FINS Message Communications for details.

Communications Software Switches and Communications Status

Dedicated words in the CPU Unit are allocated for DeviceNet communications
software switches and status.

Master

Software
switches

Status area

Control scan list registration/clearing, remote I/O
communications start/stop, and other parameters

Enables monitoring communications errors, communications
status of Masters, registered Slave data, normal Slave data,
etc.

1-1-3 Masters

PLC Model Mountable position Master/Slave

function

CS Series CS1W-DRM21(-V1)

DeviceNet Unit

CJ Series CJ1W-DRM21 CPU Rack or Expansion

CVM1/CV Series CVM1-DRM21-V1

DeviceNet Master

Unit
CS Series C200HW-DRM21-V1
C200HX/HG/HE 10 or 16
C200HS 10

DeviceNet Master

Unit

CPU or Expansion CPU
Rack (Classified as CPU
Bus Units)

Rack (Classified as CPU
Bus Units)

CPU or Expansion CPU
Rack (Classified as CPU
Bus Units)

CPU Rack or Expansion
I/O Rack (Classified as
Special I/O Units)

Master and Slave 16

Master only 16 1

Maximum number of

Configurator

16

mountable units

With

Without

Configurator

1-1-4 Types of Slave

The following classifications are used for DeviceNet Slaves.

• General-purpose Slaves:
Slave with I/O functions for I/O that uses an ordinary connector connected
to a communications cable.

• Environment-resistant Slaves:
Slave with I/O functions for I/O that uses a round, waterproof connector
connected to a communications cable.

• Special Slaves:
Slave with functions not related to I/O (e.g., message communications) for
I/O that uses an ordinary connector connected to a communications
cable.

• Analog Slaves:
Slave with I/O functions for analog values that uses an ordinary connector
connected to a communications cable.

9

Overview of DeviceNet Section 1-1

DRT1 Series

General-purpose Slaves (Communications Cable: Normal Square Connectors)

Name Appearance I/O points Model number Remarks

Remote I/O Terminals
with Transistors

Remote I/O Terminals
with Transistors and
3-tier Terminal Block

Remote I/O Terminals
with Transistors and
Connectors

Remote Adapters 16 input points (NPN) DRT1-ID16X Compact (85 x 50 x 40 mm

8 input points (NPN) DRT1-ID08 --­8 input points (PNP) DRT1-ID08-1
16 input points (NPN) DRT1-ID16
16 input points (PNP) DRT1-ID16-1
8 output points (NPN) DRT1-OD08 --­8 output points (PNP) DRT1-OD08-1
16 output points

(NPN)
16 output points

(PNP)
16 input points (NPN) DRT1-ID16T Simple wiring (not necessary
16 input points (PNP) DRT1-ID16T-1
16 input points (NPN) DRT1-ID16TA
16 input points (PNP) DRT1-ID16TA-1
16 output points

(NPN)
16 output points

(PNP)
16 output points

(NPN)
16 output points

(PNP)
8 input points+8 out-

put points (NPN)
8 input points+8 out-

put points (PNP)
8 input points+8 out-

put points (NPN)
8 input points+8 out-

put points (PNP)
32 input points (NPN) DRT1-ID32ML Compact (35 x 60 x 80 mm
32 input points (PNP) DRT1-ID32ML-1
32 output points

(NPN)
32 output points

(PNP)
16 input points+16

output points (NPN)
16 input points+16

output points (PNP)

16 input points (PNP) DRT1-ID16X-1
16 output points

(NPN)
16 output points

(PNP)

DRT1-OD16

DRT1-OD16-1

DRT1-OD16T

DRT1-OD16T-1

DRT1-OD16TA

DRT1-OD16TA-1

DRT1-MD16T

DRT1-MD16T-1

DRT1-MD16TA

DRT1-MD16TA-1

DRT1-OD32ML

DRT1-OD32ML-1

DRT1-MD32ML

DRT1-MD32ML-1

DRT1-OD16X

DRT1-OD16X-1

to tighten multiple wires
together and wiring locations
are easy to understand)

The DRT1-@D16TA(-1) does
not need a separate power
supply for internal circuits
(uses the communications
power supply).

(W x D x H))
Connects to a Relay Terminal

through a MIL cable.
Does not need a separate

power supply for internal cir­cuits (uses the communica­tions power supply).

(W x D x H))
Connects to a G70D Relay

terminal and can be used for a
relay output or a power MOS­FET relay output.

10

Overview of DeviceNet Section 1-1

Name Appearance I/O points Model number Remarks

Sensor Terminals 16 input points (NPN) DRT1-HD16S Connected to photoelectric

and proximity sensors with
connectors

8 input/8 output
points (PNP)

CQM1 I/O Link Unit 16 internal inputs/

CPM2A/CPM1A
I/O Link Unit

16 internal outputs
(between CQM1 and
Master)

32 internal inputs/
32 internal outputs
(between CPM2A/
CPM1A and Master)

Note For details on Slaves, refer to the DeviceNet (CompoBus/D) Slaves Operation

Manual (W347).

DRT1-ND16S

CQM1-DRT21 Remote I/O communications

between PLCs

CPM1A-DRT21 Remote I/O communications

between PLCs

11

Overview of DeviceNet Section 1-1

Waterproof and Environment-resistant Slaves (Communications Cable: Round Connectors)

Name Appearance I/O points Model number Remarks

Waterproof Terminals 4 input points (NPN) DRT1-ID04CL Dust and drip-proof structure

4 input points (PNP) DRT1-ID04CL-1
8 input points (NPN) DRT1-ID08CL
8 input points (PNP) DRT1-ID08CL-1
4 output points (NPN) DRT1-OD04CL
4 output points (PNP) DRT1-OD04CL-1
8 output points (NPN) DRT1-OD08CL
8 output points (PNP) DRT1-OD08CL-1

Environment-resis­tant Terminals

B7AC Interface Ter­minal

8 input points (NPN) DRT1-ID08C Spatter, dust and drip-proof
8 output points (NPN) DRT1-OD08C
16 input points (NPN) DRT1-HD16C
16 input points (PNP) DRT1-HD16C-1
16 output points

(NPN)
16 output points

(PNP)
8 input points+8 out-

put points (NPN)
8 input points+8 out-

put points (PNP)
10 input points x 3 DRT1-B7AC Splits 1 B7AC Unit into 3

DRT1-WD16C

DRT1-WD16C-1

DRT1-MD16C

DRT1-MD16C-1

for environmental resistance
(IP 67)

XS2 Series connector system
eliminates the need for tools
for sensor, valve or other con­nections.

structure for environmental
resistance (IP 66)

XS2 Series connector system
eliminates the need for tools
for sensor, valve or other con­nections.

branches.
XS2 Series connector system

eliminates the need for tools.
Dust and drip-proof structure

for environmental resistance
(IP 66)

Special Slaves (Communications Cable: Normal Square Connectors)

Name Appearance I/O points Model number Remarks

C200H I/O Link Unit 512 inputs max.

(32 words)
512 outputs max.
(32 words)

RS-232C Unit 16 inputs (1 word) DRT1-232C2 Two RS-232C ports mounted

Programmable
Slaves

512 inputs max.
(32 words)
512 outputs max.
(32 words)

C200HW-DRT21 Supports remote I/O and

message communications
between PLCs.

Max. I/O area: 512 input
points and 52 output points

Any I/O words can be allo­cated.

Data sent and received by
explicit message (151 bytes
max.)

Executes settings and control
through explicit messages.

Reflects RS-232C port status

in the input.
CPM2C-S100C-DRT
CPM2C-S110C-DRT

Controller that enables com-

munications with CompoBus/

S Master.

Enables message communi-

cations using explicit mes-

sages.

12

Overview of DeviceNet Section 1-1

DRT2 Series

General-purpose Slaves (Communications Cable: Normal Square Connectors)

Name Appearance I/O points Model number Remarks

Remote I/O Termi­nals with Transistors

Remote I/O Terminal
with Relay Outputs

8 input points (NPN) DRT2-ID08 Terminal block mounted/
8 input points (PNP) DRT2-ID08-1
8 output points

(NPN)
8 output points

(PNP)
16 input points

(NPN)
16 input points (PNP) DRT2-ID16-1
16 output points

(NPN)
16 output points

(PNP)
8 input points/8 out-

put points (NPN)
8 input points/8 out-

put points (PNP)
16 output points DRT2-ROS16 Relay outputs

DRT2-OD08

DRT2-OD08-1

DRT2-ID16

DRT2-OD16

DRT2-OD16-1

DRT2-MD16

DRT2-MD16-1

removed using screws.

Remote I/O Terminal
Expansion Units with
Transistors

Remote I/O Termi­nals with 3-tier Termi­nal Blocks and
Transistors

16 input points
(NPN)

16 input points (PNP) XWT-ID16-1
16 output points

(NPN)
16 output points

(PNP)
8 input points (NPN) XWT-ID08
8 input points (PNP) XWT-ID08-1
8 output points

(NPN)
8 output points

(PNP)
16 input points

(NPN)
16 input points (PNP) DRT2-ID16TA-1
16 output points

(NPN)
16 output points

(PNP)
8 input points/8 out-

put points (NPN)
8 input points/8 out-

put points (PNP)

XWT-ID16 Expansion Unit for

XWT-OD16

XWT-OD16-1

XWT-OD08

XWT-OD08-1

DRT2-ID16TA Wiring locations easy to

DRT2-OD16TA

DRT2-OD16TA-1

DRT2-MD16TA

DRT2-MD16TA-1

increasing inputs or out­puts of the Basic Unit.

find (wiring to the same
terminal not required).

Cannot be expanded
with an Expansion Unit.

13

Overview of DeviceNet Section 1-1

Name Appearance I/O points Model number Remarks

Sensor Connector
Terminals with Tran­sistors

MIL Connector Ter­minals with Transis­tors

Board MIL Connec­tor Terminals with
Transistors

REMOTE TERMINAL

SOURCE : 24

O

REMOTE TERM
SOURCE : 24

m
O

n
o

V

i
t

a
r
o

p

r
o
C

n
o
r
m

INAL

n

V

o
i

t
a
r

o

p
r
o

C

n
o
r

16 input points

DRT2-ID16S Use industry standard

(NPN)
16 input points (PNP) DRT2-ID16S-1
8 input points/8 out-

DRT2-MD16S

put points (NPN)
8 input points/8 out-

DRT2-MD16S-1

put points (PNP)
16 input points

DRT2-ID16ML Connects to relay termi-

(NPN)
16 input points (PNP) DRT2-ID16ML-1
16 output points

DRT2-OD16ML

(NPN)
16 output points

DRT2-OD16ML-1

(PNP)
16 input points

DRT2-ID16MLX A connecting cable

(NPN)
16 input points (PNP) DRT2-ID16MXL-1
16 output points

DRT2-OD16MLX

(NPN)
16 output points

DRT2-OD16MXL-1

(PNP)
32 input points

DRT2-ID32ML Connects to relay termi-

(NPN)
32 input points (PNP) DRT2-ID32ML-1
32 output points

DRT2-OD32ML

(NPN)
32 output points

DRT2-OD32ML-1

(PNP)
16 input points/16

DRT2-MD32ML

output points (NPN)
16 input points/16

DRT2-MD32ML-1

output points (PNP)
32 input points

DRT2-ID32B MIL connectors mounted

(NPN)
32 input points (PNP) DRT2-ID32B-1
32 output points

DRT2-OD32B

(NPN)
32 output points

DRT2-OD32B-1

(PNP)
16 input points/16

DRT2-MD32B

output points (NPN)
16 input points/16

DRT2-MD32B-1

output points (PNP)
32 input points

DRT2-ID32BV MIL connectors mounted

(NPN)
32 input points (PNP) DRT2-ID32BV-1
32 output points

DRT2-OD32BV

(NPN)
32 output points

DRT2-OD32BV-1

(PNP)
16 input points/16

DRT2-MD32BV

output points (NPN)
16 input points/16

DRT2-MD32BV-1

output points (PNP)

sensor connectors.

nal using MIL cable.

(10 cm) is included.

nal using MIL cable.

parallel to board

perpendicular to board

14

Overview of DeviceNet Section 1-1

Name Appearance I/O points Model number Remarks

Screw-less Clamp
Terminal with Tran­sistors

16 input points
(NPN)

16 input points (PNP) DRT2-ID16SL-1
16 output points

(NPN)
16 output points

(PNP)
16 input points

(NPN)
16 input points (PNP) DRT2-ID16SLH-1
16 output points

(NPN)
16 output points

(PNP)
32 input points

(NPN)
32 input points (PNP) DRT2-ID32SL-1
32 output points

(NPN)
32 output points

(PNP)
16 input points/16

output points (NPN)
16 input points/16

output points (PNP)
32 input points

(NPN)
32 input points (PNP) DRT2-ID32SLH-1
32 output points

(NPN)
32 output points

(PNP)
16 input points/16

output points (NPN)
16 input points/16

output points (PNP)

DRT2-ID16SL Without detection func-

DRT2-OD16SL

DRT2-OD16SL-1

DRT2-ID16SLH With detection function

DRT2-OD16SLH

DRT2-OD16SLH-1

DRT2-ID32SL Without detection func-

DRT2-OD32SL

DRT2-OD32SL-1

DRT2-MD32SL

DRT2-MD32SL-1

DRT2-ID32SLH With detection function

DRT2-OD32SLH

DRT2-OD32SLH-1

DRT2-MD32SLH

DRT2-MD32SLH-1

tion

tion

Environment-resistant Slaves (Communications Cable: Round Waterproof Connectors)

Name Appearance I/O points Model number Remarks

Environment-resis­tive Terminals

8 input points (NPN) DRT2-ID08C Waterproof, oil-proof,
8 input points (PNP) DRT2-ID08C-1
16 input points

(NPN)
16 input points (PNP) DRT2-HD16C-1

8 output points
(NPN)

8 output points
(PNP)

DRT2-HD16C

DRT2-OD08C

DRT2-OD08C-1

and spatter-proof con­struction (IP67).

Equipped with detection
functions.

15

Overview of DeviceNet Section 1-1

Name Appearance I/O points Model number Remarks

Environment-resis­tive Terminals, Stan­dard Models

4 input points (NPN) DRT2-ID04CL Waterproof, oil-proof,
4 input points (PNP) DRT2-ID04CL-1
4 output points

(NPN)
4 output points

(PNP)
8 input points (NPN) DRT2-ID08CL
8 input points (PNP) DRT2-ID08CL-1
16 input points

(NPN)
16 input points (PNP) DRT2-HD16CL-1
8 output points

(NPN)
8 output points

(PNP)
16 output points

(NPN)
16 output points

(PNP)
8 input points/8 out-

put points (NPN)
8 input points/8 out-

put points (PNP)

DRT2-OD04CL

DRT2-OD04CL-1

DRT2-HD16CL

DRT2-OD08CL

DRT2-OD08CL-1

DRT2-WD16CL

DRT2-WD16CL-1

DRT2-MD16CL

DRT2-MD16CL-1

and spatter-proof con­struction (IP67).

Not equipped with
detection functions.

Analog Slaves (Communications Cable: Normal Square Connectors)

Name Appearance I/O points Model number Remarks

Analog Terminals 4 input points

Temperature Input
Te r m in a l s

(0 to 5 V, 1 to 5 V,
0 to 10 V,

−10 to 10 V, 0 to
20 mA, 4 to 20 mA)

4 input points
(0 to 5 V, 1 to 5 V,

0 to 10 V, 0 to 20 mA,
4 to 20 mA)

2 output points
(0 to 5 V, 1 to 5 V,
0 to 10 V,

−10 to 10 V, 0 to
20 mA, 4 to 20 mA)

4 input points
(Switchable between

R, S, K1, K2, J1, J1,
T, E, B, N, L1, L2, U,
W, and PL2.)

4 input points
(Switchable between

PT, JPT, PT2, and
JPT2.)

DRT2-AD04 Terminal block mounted/

DRT2-AD04H

DRT2-DA02

DRT2-TS04T Thermocouple input

DRT2-TS04P Platinum resistance

removed using screws.
The DRT2-AD04H is a

High-resolute Terminal
(1/30,000 FS).

thermometer input

16

Overview of DeviceNet Section 1-1

MULTIPLE I/O TERMINAL Units

Unit I/O

Communications Unit None Two sta-

Basic I/O
Units

Transistor
Input Units

Transistor
Output
Units

Relay Out­put Units

points

16 input
points

16 input
points

16 input
points

16 input
points

32 input
points

16 out­put
points

16 out­put
points

16 out­put
points

16 out­put
points

32 out­put
points

16 out­put
points

8 out­put
points

Words allocated

in PC memory

Input Output

0 words None 24 VDC
tus
words

1 word 0 words M3 terminal

1 word 0 words Connector

1 word 0 words Connector

1 word 0 words Connector

2 words 0 words High-den-

0 words 1 word M3 terminal

0 words 1 word Connector

0 words 1 word Connector

0 words 1 word Connector

0 words 2 words High-den-

0 words 1 word M3 terminal

0 words 1 word GT1-ROP08 ---

I/O connec-

tions

block

(made by
MOLEX)

(made by
FUJITSU)

(D-sub,
25 pin)

sity connec­tor (made by
FUJITSU)

block

(made by
MOLEX)

(made by
FUJITSU)

(D-sub,
25 pin)

sity connec­tor (made by
FUJITSU)

block

Unit

power

supply

voltage

(sup­plied
from out­side)

Installa-

tion

DIN track DRT1-COM ---

Model

number

GT1-ID16 NPN
GT1-ID16-1 PNP
GT1-ID16MX NPN
GT1-ID16MX-1 PNP

GT1-ID16ML NPN
GT1-ID16ML-1 PNP

GT1-ID16DS NPN
GT1-ID16DS-1 PNP

GT1-ID32ML NPN
GT1-ID32ML-1 PNP

GT1-OD16 NPN
GT1-OD16-1 PNP

GT1-OD16MX NPN
GT1-OD16MX-1 PNP

GT1-OD16ML NPN
GT1-OD16ML-1 PNP

GT1-OD16DS NPN
GT1-OD16DS-1 PNP

GT1-OD32ML NPN
GT1-OD32ML-1 PNP

GT1-ROS16 ---

Remarks

17

Overview of DeviceNet Section 1-1

Special
I/O Units
(See
note.)

Unit I/O

Analog
Input Units

Analog
Output
Units

Te m pe r a ­ture Input
Unit

Counter
Unit

points

4 inputs 4 words 0 words M3 terminal

8 inputs 8 words 0 words Connector

4 out­puts

4 out­puts

4 inputs 4 or 8

4 inputs 0 words M3 terminal

1 input 3 words 3 words M3 terminal

Words allocated

in PC memory

Input Output

0 words 4 words M3 terminal

0 words 4 words Connector

0 words M3 terminal
words
(varies
with
data for­mat)

I/O connec-

tions

block

(made by
MOLEX)

block

(made by
MOLEX)

block

block

block

Unit

power

supply

voltage

24 VDC
(sup­plied
from out­side)

Installa-

tion

DIN track GT1-AD04 Inputs:

Model

number

GT1-AD08MX

GT1-DA04 Outputs:

GT1-DA04MX Outputs:

GT1-TS04T Sensor

GT1-TS04P Sensor

GT1-CT01 1 external

Remarks

4 to 20 mA,
0 to 20 mA,
0 to 5 V,
1 to 5 V,
0 to 10 V,
–10 to 10 V

4 to 20 mA
0 to 5 V,
1 to 5 V,
0 to 10 V,
–10 to 10 V

0 to 5 V,
1 to 5 V,
0 to 10 V,
–10 to 10 V

types: R, S,
K, J, T, B, L

types:
Pt100,
JPt100

input
2 external
outputs

Note The front-panel indicators and other parts of Analog Input Units, Analog Out-

put Units, and Counter Units differ from those of other I/O Units. These Units
belong to a group called Special I/O Units.

One I/O Unit Connecting Cable (cable length 40 mm) is included with each I/O
Unit. One end connector is attached to the Communications Unit.

I/O Unit Connecting Cables with a cable lengths of 0.1, 0.3, 0.4, 0.6, and 1 m
(GCN1-010/030/040/060/100) are sold separately (see below).

Length

Note For details on MULTIPLE I/O TERMINAL Units, refer to the DeviceNet MULTI-

PLE I/O TERMINAL Operation Manual (W348).

18

DeviceNet Unit Features Section 1-2

f

1-1-5 DeviceNet Configurator

Use version 2 of the DeviceNet Configurator for the CS1W-DRM21(-V1)/
CJ1W-DRM21 DeviceNet Unit. Earlier versions of the DeviceNet Configurator
do not support the CS1W-DRM21 DeviceNet Unit.

Product

name

DeviceNet
Configurator
(Ver. 2)

Model Components Network connection

WS02-CFDC1-E Installation disk

(CD-ROM)

to computer

Any of the following:

• Serial connection

• PCI Board

• PCMCIA Card
(See the table below.)

Applicable

computer

IBM PC/AT or
compatible

OS

Windows 95, 98,
Me, NT4.0, 2000,
or XP

Note The following Boards and Cards can be used.

Model Components Applicable

3G8F7-DRM21 Dedicated PCI Board (DeviceNet

Configurator is not included.)

3G8E2-DRM21-V1 Dedicated PCMCIA Card with

DeviceNet Configurator (Ver. 2)

computer

IBM PC/AT or
compatible

Windows 95, 98,
NT4.0, 2000, or XP

Windows 98, Me,
2000, or XP

OS

Note Use Configurator version 2.10 or higher for the CJ1W-DRM21.

1-2 DeviceNet Unit Features

The following are features of the CS-series and CJ-series DeviceNet Units
(CS1W-DRM21(-V1) and CJ1W-DRM21).

Multi-vendor Network Devices made by other companies (masters or slaves) can be connected to

DeviceNet because it conforms to open field network specifications. By using
a combination of valves, sensors, and other DeviceNet products, the network
can be adapted to various field-level applications.

Simultaneous Remote I/O
Communications and
Messaging Services

Note Refer to SECTION 4 Remote I/O Master Communications for details on

Remote I/O communications that constantly transfer I/O between a DeviceNet
Unit and slaves as well as message communications where the DeviceNet
Unit sends and receives data as needed can both be executed simulta­neously. When a DeviceNet network is constructed, this feature ensures the
network will be able to handle applications that require the free flow back and
forth of bit data and message data. FINS commands can be executed along
with DeviceNet explicit messages in message communications.

Remote I/O Communications

CS/CJ-series DeviceNet
Unit (master)

Remote I/O (master)

unction

Slave

DeviceNet

Slave

Slave

remote I/O communications.

19

DeviceNet Unit Features Section 1-2

Explicit Message Communications

CS/CJ-series
DeviceNet Unit

Explicit message

DeviceNet

RS-232C
Slave

RS-232C
Slave

CS/CJ-series
DeviceNet Unit

Note Refer to 6-4 Sending Explicit Messages for details on remote I/O communica-

tions.

FINS Message Communications

CS/CJ-series
DeviceNet Unit

FINS message

DeviceNet

Slave

Slave

CS/CJ-series
DeviceNet Unit

Note Refer to 6-3 Using FINS Message Communications for details on FINS com-

munications.

User-set allocations
without the Configurator

With CS/CJ-series DeviceNet Units, remote I/O communications can be allo­cated in any area without the Configurator simply by using DM Area settings.
If the Configurator is used, it allows you to change the node address order for
more flexible I/O allocations. This feature ensures the proper I/O allocations
for any application and it makes effective use of PLC memory by simplifying
programming.

Note Refer to 4-4 User-set Allocations for details.

Slave Functions CS/CJ-series DeviceNet Units can be used as both masters and slaves, and

master and slave communications can be executed either separately or simul-

20

DeviceNet Unit Features Section 1-2

taneously. A Unit that is used as a slave supports fixed and user-set alloca­tions. The maximum I/O for the slave function is 100 words.

CS/CJ-series DeviceNet Unit
(Master)

Master PLC

DeviceNet

Configurator Connection
through a Serial Line

CS/CJ-series
DeviceNet Unit

Slave PLC

64 nodes max.

(Slave)

Note Refer to SECTION 5 Remote I/O Slave Communications for details.

The Configurator can also be connected either as a DeviceNet node or to a
serial port on a CPU Unit or a Serial Communication Unit/Board.

CS/CJ-series DeviceNet Unit
(Master)

CPU Unit

Serial connection
(Host Link or Peripheral Bus)

DeviceNet

Configurator

Scan list registration

21

DeviceNet Unit Features Section 1-2

CX-Programmer
Programming and
Monitoring of DeviceNet
Slave PLCs (Ver. 2.1 or
higher)

CX-Programmer Ver. 2.1 connected to a serial communications port on a
DeviceNet PLC can be used to remotely program and monitor other
DeviceNet PLCs (i.e., PLCs with a CS/CJ-series DeviceNet Unit or a Pro­grammable Slave).

CS/CJ-series DeviceNet
Unit (master)

Program­mable
Slave

CS/CJ-series
Ethernet Unit

CX-Programmer

DeviceNet

CX-Programmer

Serial line (Host Link
or peripheral bus)

CS/CJ-series DeviceNet
Unit (master)

CS/CJ-series DeviceNet
Unit (master)

Ethernet

DeviceNet

Program­mable
Slave

CS/CJ-series DeviceNet
Unit (master)

Note Refer to 7-1 Connecting to the CX-Programmer via the DeviceNet for details.

Inter-network Connections FINS messages can be sent back and forth between DeviceNet and other

networks (e.g., Controller Link, SYSMAC LINK, and Ethernet). This feature
enables seamless message communications between all types of networks,
including DeviceNet.

Controller Link Unit

Controller Link Unit

Controller Link

CS/CJ-series DeviceNet Unit

FINS message

DeviceNet

CS/CJ-series
DeviceNet Unit

22

Note Refer to 6-3 Using FINS Message Communications for details.

DeviceNet Unit Features Section 1-2

Multiple PLCs in a Single
Network

CS/CJ-series DeviceNet Unit

(Master)

Multiple DeviceNet Units
on a Single PLC

CS/CJ-series DeviceNet Unit
(master) (See note 1.)

Multiple DeviceNet Units can be connected in a single network for message
communications between PLCs as well as for remote I/O communications
between PLCs and slaves in multiple groups. This feature allows a DeviceNet
to be used as a common bus that can integrate all types of control with less
wiring.

Master PLC

Remote I/O

DeviceNet

CS/CJ-series
DeviceNet Unit
(Slave)

Slave PLC

CS/CJ-series
DeviceNet Unit

Remote I/O

(Master)

Master PLC

Note Refer to 4-1 Master Remote I/O Communications for details.

Up to 16 CS/CJ-series DeviceNet Units can be mounted to a single PLC. This
feature enables greater DeviceNet remote I/O control capacity and ensures
that DeviceNet can easily handle line expansion as well as other applications.

CS/CJ-series DeviceNet Unit
(master)

DeviceNet

DeviceNet

DeviceNet

CS/CJ-series DeviceNet Unit
(slave) (See note 2.)

CS/CJ-series DeviceNet Unit
(master) (See note 1.)

DeviceNet

DeviceNet

Note 1. Multiple Units can be mounted without the Configurator.

2. DeviceNet Units set as both slaves and/or masters can be mounted at the
same time.

3. Refer to 4-1 Master Remote I/O Communications for details.

23

DeviceNet Unit Features Section 1-2

DeviceNet Unit Setup Files
(Memory Card Backup)

Note Refer to 7-2 Memory Card Backup Functions for details.

System Backup (Simple
Backup)

Setup data (e.g., scan lists) in a DeviceNet Unit can be written as a file to the
Memory Card mounted in a CPU Unit. This feature greatly simplifies
DeviceNet Unit replacement. A DeviceNet Unit device parameter file (same as
data setup file) that is prepared offline using the Configurator can be saved on
a Memory Card, and setup data from the Memory Card can be downloaded to
a DeviceNet Unit. (See Appendix D Memory Card Backup Function for more
details.)

CS/CJ-series DeviceNet Unit

CPU Unit

Memory Card

File save

File load

Loads setup data to a DeviceNet Unit using a
software switch in CIO Area of the CPU Unit.

Configurator

The CPU Unit’s simple backup function enables backup data for the entire
PLC, including DeviceNet Units, the CPU Unit, and Serial Communications
Units/Boards to be saved on or downloaded from a Memory Card.

Setup data in CS1W-DRM21-V1 or CJ1W-DRM21
DeviceNet Unit

Example: Protocol macro data in Serial Communications Unit

All data including user programs, parameters, and
I/O memory in the CS1-H or CJ1-H CPU Unit.

All data

Backup data (obtained using the CPU Unit’s
simple backup function)

Memory Card

The simple backup function is supported only when using a combination of a
CS1-H CPU Unit with a CS1W-DRM21-V1 DeviceNet Unit, or a CJ1-H CPU
Unit with a CJ1W-DRM21 DeviceNet Unit.

Note Refer to 7-3 Simple Backup Function for details.

24

DeviceNet Unit Features Section 1-2

Various Connection
Methods

Maximum Network Length
of 500 m

High-speed
Communications

Compatibility with Slow
Slaves

A Wide Variety of Slaves A wide variety of I/O devices, like Remote I/O Terminals, Environment-resis-

Normal multi-drop, T-branch multi-drop (with up to three branches), and daisy­chain line connections are available. These methods can be combined to con­struct a flexible system that suits the floor layout.

A network can connect up to 63 Slaves and can handle remote I/O communi­cations of up to 2,000 byes (16,000 points without the Configurator) per
DeviceNet Unit. A maximum network length of 500 m is possible with a baud
rate of125 Kbps using thick cable.

High-speed communications are possible at up to 500 Kbps for a trunk line
length of 100 m.

The communications cycle time can be set even without the Configurator so
slaves with slow response times can be used.

tant Terminals, Remote Adapters, Sensor Terminals, Temperature Input Ter­minals, CQM1 I/O Link Units, Analog I/O Terminals, C200H I/O Link Units,
RS-232C Units, MULTIPLE I/O TERMINALs, Temperature Adjusters, Invert­ers, and Intelligent Plugs can be used as slaves.

25

Specifications Section 1-3

1-3 Specifications

1-3-1 DeviceNet Unit

Model

Applicable PLC Unit classification Types of communications Model number

CS Series CPU Bus Unit • Remote I/O communications master (fixed or user-set
CJ Series CJ1W-DRM21

allocations)

• Remote I/O communications slave (fixed or user-set al­locations)

• Message communications

General Specifications General specifications of the CS/CJ-series DeviceNet Unit conform to the

general specifications for the SYSMAC CS/CJ-series CPU Units.

Functional and Performance Specifications

Item Specification

DeviceNet Unit model CS1W-DRM21(-V1) CJ1W-DRM21
Applicable PLC CS Series CJ Series
Unit classification CPU Bus Unit
Applicable unit numbers 0 to F
Mounting position CPU Rack, CS Expansion Rack

No. of
Masters
that can
be
mounted

No. of
Slaves
that can
be
mounted

No. of Units that can be connected per network 64 Units max.
Words

allo­cated in
the CPU
Unit

Fixed allocations 3 Units max. (Unique words must be allocated using the Allocated CIO

User-set alloca­tions

Fixed allocations 3 Units max. (Unique words must be allocated using the Allocated CIO

User-set alloca­tions

DeviceNe
t remote
I/O com­munica­tions

CIO Area words allocated for the
CPU Bus Unit

DM Area words allocated for the
CPU Bus Unit

Other I/O memory Set the allocation size table for all slaves in any area when remote I/O

When
used as
a Mas­ter

When
used as
a Slave

By allocated
DM Area words

By Configurator 16 Units max. (Unique words must be allocated using the Configurator.)

By allocated
DM Area words

By Configurator 16 Units max. (Unique words must be allocated using the Configurator.)

Fixed alloca­tions

User-set alloca­tions

Fixed alloca­tions

User-set alloca­tions

(Cannot be mounted to a C200H
Expansion I/O Rack or SYSMAC BUS
Slave Rack.)

Area Words Software Switches.)
16 Units max. (Unique words must be allocated using the user setup

tables in the allocated DM Area words.)

Area Words Software Switches)
16 Units max. (Unique words must be allocated using the user setup

tables in the allocated DM Area words.)

Fixed words in the CS/CJ-series DeviceNet Area in the CIO Area (any of
three settings).

Any I/O memory (Set using the allocated DM Area words or Configura­tor.)

Fixed words in the CS/CJ-series DeviceNet Area in the CIO Area (one of
three settings).

Any I/O memory words (Set in allocated DM Area words or Configura­tor.)

25 words/Unit (allocation for one Unit)
CPU Unit to DeviceNet Unit: 9 words for the software switches, 6 words

for the status area, 8 words for the registered slaves and normal slaves
tables

100 words/Unit (allocation for one Unit)
Scan List User Setup Table, Slave User Setup Table, Master I/O Alloca-

tion Reference Table, Slave I/O Allocation Reference Table, Detailed
Slave Status Table, etc.

CPU Unit to DeviceNet Unit: Table for communications cycle time set­tings

communications is set to user-set allocations from the setting in the allo­cated DM Area words.

CPU Rack or Expansion Rack

CS1W-DRM21(-V1)

26

Specifications Section 1-3

Item Specifications

Supported connections (communications) • Remote I/O communications (master and slave): Master/slave

Remote I/O
master com­munications

Slave allocation method Fixed allo-

cations

User-set
allocations

connection (poll, bit-strobe, COS, cyclic)

• Explicit message and FINS message communications: Explicit
connection

All conform to DeviceNet communications standards.
Select one of the following fixed allocation areas using the Fixed

Allocated Area Switches 1, 2, and 3 in the software switches in
the allocated CIO Area words.

Allocated
words
(CIO
Area)

By allo­cated DM
Area
words

By Config­urator

I/O Size Fixed

Alloca-

tion

Area

Setting

1

Output
(OUT)
area

Input (IN)
area

Select one of the above areas using the software
switches. All are fixed at 1 word per node address.
The default setting is Fixed Allocation Area Setting 1.

Set the areas and the first words for the OUT 1 and
IN 1 blocks in the Scan List Setup Table in the allo­cated DM Area words. Set the allocation size for
each slave using the Allocation Size Setup Table
(any words). Allocations must be in the order of node
addresses.

Allocated
words

Set the areas for the OUT 1/2 and IN 1/2 blocks, the
first words, and the allocation sizes for all slaves
using the Configurator. Blocks can be set for nodes
in any order.

Allocated
words

64 words 3200 to

3263

64 words 3300 to

The input and output areas can be the
following sizes starting from any word in
any of the following areas: CIO Area,
WR Area, HR Area, DM, Area, or EM
Area.

Output
(OUT)
area

Input (IN)
area

The input and output areas can be the
following sizes starting from any word in
any of the following areas: CIO Area,
WR Area, HR Area, DM, Area, or EM
Area.

Output
(OUT)
area

Input (IN)
area

3363

500 words max. × 1 block

500 words max. × 1 block

500 words max. × 2 blocks

500 words max. × 2 blocks

Fixed

Alloca-

tion

Area

Setting

2

3400 to
3463

3500 to
3563

Fixed

Alloca-

tion

Area

Setting

3

3600 to
3663

3700 to
3763

27

Specifications Section 1-3

Item Specifications

Remote I/O
master

Remote I/O
slave

Max. No. of Slaves con­nected per DeviceNet Unit

Max. No. of I/O points per
DeviceNet Unit

Max. No. of I/O per Slave
controllable by a DeviceNet
Unit

Allocation method Fixed allo-

Fixed allocations 63 nodes
User-set

allocations

Fixed allocations 2,048 pts (64 input words, 64 output words)
User-set

allocations

Fixed allocations 2,048 pts (64 input words, 64 output words)
User-set

allocations

cations

User-set
allocations

By allo­cated DM
Area
words

By Config­urator

By allo­cated DM
Area
words

By Config­urator

By allo­cated DM
Area
words

By Config­urator

Select one of the following fixed allocation areas using the Slave
Fixed Allocated Area Switches 1, 2, and 3 in the software
switches in the allocated CIO Area words.

Allocated
words
(CIO
Area)

Note Select one of the preceding areas using the software

By allo­cated DM
Area
words

16,000 pts (500 input words x 1 block, 500 output
words x 1 block)

32,000 pts (500 input words x 2 blocks, 500 output
words x 2 blocks)

3,200 pts (100 input words, 100 output words)

3,200 pts (100 input words, 100 output words)

I/O Size Fixed

Alloca-

tion

Area

Setting

1

Output
(OUT)
area to the
slave from
the master

Input
(OUT)
area to the
master
from the
slave

switches. All are fixed at 1 word per node address. The
default setting is Fixed Allocation Area Setting 1.

Set the areas, the first words, and slave allocation
size for the OUT 1 and IN 1 blocks (total of 2 blocks)
using the Slave User Allocation Setup Table in the
allocated DM Area words.

Allocated
words

1 word 3370 3570 3770

1 word 3270 3470 3670

The input and output areas can be the
following sizes starting from any word in
any of the following areas: CIO Area,
WR Area, HR Area, DM, Area, or EM
Area.

Output (OUT) area from this
slave

Input (IN) area to this slave 100

Fixed

Alloca-

tion

Area

Setting

2

Fixed

Alloca-

tion

Area

Setting

3

100
words

words

28

Specifications Section 1-3

Item Specifications

Remote I/O
slave

Default settings • Scan list: Not supported

Data stored in non-volatile memory (EEPROM) in the
DeviceNet Unit

Applicable connections • The DeviceNet Unit automatically selects the applicable con-

Communications cycle time Uses values calculated using the following equations to derive

Allocation method User-set

Max. No. of I/O points per
DeviceNet Unit slave

allocations

Fixed allocations 32 points (1 input word, 1 output word)
User-set

allocations

By Config­urator

By allo­cated DM
Area
words

By Config­urator

• Master communications: Supported

• Slave communications: Disabled

• Remote I/O communications: Start

• Master fixed allocations: Fixed Allocation Area Setting 1

• Slave fixed allocations: Fixed Allocation Area Setting 1

Saves the following data settings (same as the backup file on the
Memory Card).

• Master scan list

• Slave scan list

• Message monitoring timer list (monitoring time for explicit mes­sage responses)

• Communications time settings

• Master/Slave enabled

nection.

• The user can also specify poll, bit-strobe, COS (change of
state) or cyclic for the applicable connection of each slave us­ing the Configurator. Up to two types of connections can be set
for each Slave (although COS and cyclic cannot be specified si­multaneously).

default value.
Example: 16 Input Slaves (16 points each), 16 Output Slaves

(16 points each), and a baud rate of 500 Kbps: 9.3 ms
The user can set a value within a range from 2 to 500 ms. How-

ever, the calculated value is only enabled when the calculated
value from the conditions equation is greater than the setting.

Note Uses the default value calculated using 1 input word and

Set the areas for the OUT 1/2 and IN 1/2 blocks, the
first words, and the slave allocation sizes using the
Configurator.

Allocated
words

3,200 pts (100 input words, 100 output words)

4,800 pts (100 input words x 2, 100 output words
x1)

1 output word even for missing nodes when the scan list
is disabled.

The input and output areas can be the
following sizes starting from any word in
any of the following areas: CIO Area,
WR Area, HR Area, DM, Area, or EM
Area.

Output (OUT) area from this
slave

Input (IN) area to this slave 100

100
words

words

29

Specifications Section 1-3

Item Specifications

Message
communica­tions

Other func­tions

Max. No. of nodes for message commu­nications per DeviceNet Unit

Execution commands FINS commands to

Sending and receiving FINS commands
connected through a serial line

Inter–network communica­tions

Remote programming/monitoring func­tions

Operation from the Configurator con­nected through a serial line

Memory Card backup function Allows DeviceNet Unit data settings (scan list, communication

Simple backup function Enables all setup data in the DeviceNet Unit’s non-volatile mem-

Same type
of network

Different
type of net­work

FINS message com­munications (Node
address 0 cannot be
used in FINS commu­nications.)

Send explicit mes­sages

send/receive data
Any FINS commands CMND instruction
Executes FINS commands from a host computer to a PC (to

which a CS/CJ-series DeviceNet Unit is mounted) on DeviceNet
through Host Link connections. A PLC can also send unsolicited
FINS commands over DeviceNet to a host computer connected
through Host Link.

Allows transmission across the same type of networks between
DeviceNet networks when multiple Units are mounted (can cross
up to three levels).

Allows transmission across different types of networks between
DeviceNet and other networks (e.g., Controller Link, SYSMAC
LINK and Ethernet) (can cross up to three levels).

A CX-Programmer connected to the serial communications port
of a PLC to which a CS/CJ-series DeviceNet Unit is mounted can
remotely program and monitor DeviceNet slave PLCs with a CS/
CJ-series DeviceNet Unit mounted. Either the peripheral port or
built-in RS-232C port can be used with the Host Link or periph­eral bus protocol. (Scheduled for CX-Programmer Ver. 2.1 or
higher)

Note 1. Serial ports on a Serial Communications Board/Unit

Allows all online monitoring and setup functions to be performed
on a master PLC on the DeviceNet network from the Configura­tor connected through a serial line (scan list registration, commu­nications parameter settings, etc.).

cycle time settings, etc.) to be backed up as a file to a Memory
Card in the CPU Unit. The data settings can also be restored into
the DeviceNet Unit from the Memory Card in the CPU Unit. Set­ting data can be restored into a DeviceNet Unit simply by carry­ing the Memory Card to the site if the device parameter file
prepared from the Configurator is saved to Memory Card from a
PLC.

ory (EEPROM), as well as all data in the CPU Unit, to be auto­matically backed up to, restored from, or compared with a file in a
Memory Card mounted in the CPU Unit.

Note

can be used in addition to the ports on the CPU Unit.

2. Inter-network communications across up to 3 levels is
possible (even over different types of network).

3. This is also possible from a CX-Programmer on net­work.

The simple backup function is supported only when

62 nodes Note FINS message com-

63 nodes

SEND/RECV instructions

munications using
SEND/RECV are
not supported on
PCs to which a
C200H DeviceNet
Master Unit or a
CVM1/CV
DeviceNet Master
Unit is mounted.
Explicit message
are supported how­ever.

using a combination of a CS1-H CPU Unit with a
CS1W-DRM21-V1 DeviceNet Unit, or a CJ1-H CPU
Unit with a CJ1W-DRM21 DeviceNet Unit.

30

Specifications Section 1-3

Item Specifications

Other func­tions

Configurator connection method 1) Serial connection (peripheral bus or Host Link)

Setting section Rotary switches:

Display section Two LED indicators (2 colors): Display Unit and network status.

Front connector One communications connector (communications data: CAN H

Communications power supply voltage 11 to 25 VDC (supplied from the communications connector)
Influence on CPU Unit cycle time 0.7 ms+0.001 x the number of words allocated
Current consumption

Error history in the DeviceNet Unit Supported. (The history can be accessed up by the Configurator

or using a FINS command.)

Communications cycle time setting Supported (in the allocated DM Area words or from the Configu-

rator).

Message monitoring timer Sets the response monitoring time (explicit connection opening

interval) in the DeviceNet Unit for explicit message communica­tions. Settings can be made separately for all targeted devices
using the Configurator.

COS/cyclic heartbeat timer setting Sets the minimum SEND interval in COS or cyclic connections

for all targeted devices. The setting is made using the Configura­tor.

Device data check function Performs a comparison check on the following device data when

slave data registered in the scan list is compared with actual
slave data. The Configurator can be used to set this function for
all targeted Slaves.

Vendor, device type and product code

2) Direct DeviceNet connection through a dedicated Board/Card
The online functions available are the same for both 1) and 2).

Unit No. (hexadecimal x 1), node address (decimal x 2)
Front panel DIP switch: Baud rate, stop or continue communica-

tions when an error occurs

Two-digit 7-segment display: Displays the DeviceNet Unit node
address, error code, and node address where an error occurred.
2 dot LED indicators: Display whether the registration scan list is
enabled or not.

and CAN L, communications power supply: V+, V–, shielded)
Use the XW4B-05C1-H1-D connector provided to connect the
communications cable.

Note Use the XW4B-05C4-T-D connector sold separately for

multi-drop connections.

CS1W-DRM21(-V1):

Communications power supply: 30 mA at 24 VDC, (supplied from
the communications connector)

Internal circuit power supply: 290 mA max. at 5 VDC (supplied
from the Power Supply Unit)

CJ1W-DRM21:

Communications power supply: 18 mA at 24 VDC, (supplied from
the communications connector)

Internal circuit power supply: 290 mA max. at 5 VDC (supplied
from the Power Supply Unit)

External dimensions CS1W-DRM21(-V1): 35 x 130 x 101 mm (W x H x D)

CJ1W-DRM21: 31 x 90 x 65 mm (W x H x D)

Weight CS1W-DRM21: 172 g (including the connector provided)

Standard accessories One XW4B-05C1-H1-D connector to connect to a node from a T-

CS1W-DRM21-V1: 169 g (including the connector provided)
CJ1W-DRM21: 118 g (including the connector provided)

branch Tap.

31

Specifications Section 1-3

1-3-2 Comparison between CS1W-DRM21(-V1) and CJ1W-DRM21

Only the following items are different between the CS1W-DRM21(-V1) and
the CJ1W-DRM21. Otherwise, these Units are functionally the same.

Item CS1W-DRM21(-V1) CJ1W-DRM21

Consumption current Communications power

supply: 30 mA at 24 VDC

External dimensions 35 x 130 x 101 mm

(W x H x D)

Weight (including connector) 172 g (CS1W-DRM21)

169 g (CS1W-DRM21-V1)

Communications power
supply: 18 mA at 24 VDC

31 x 90 x 65 mm
(W x H x D)

118 g

32

Comparison with Previous Models Section 1-4

1-4 Comparison with Previous Models

The following table provides a comparison between the CS1W-DRM21(-V1)
DeviceNet Unit and the C200HW-DRM21-V1 DeviceNet Master Unit used in a
CS/CJ-series PLC.

Item C200HW-DRM21-V1 CS1W-DRM21(-V1)/CJ1W-DRM21

Unit classification C200H Special I/O Unit CPU Bus Unit
Mounting position CPU Rack, C200H I/O Expansion Rack, CS-

No. of Mas­ters that can
be mounted

Routing table registration Not necessary When creating a routing table, registration in

Unit No. that can be set 0 to F 0 to F
Masters on a single network Multiple Masters, Configurator required Multiple Masters even without the Configura-

Remote I/O
communica­tions

Message communications Explicit message send, FINS message com-

Registration in the scan list
when using only message
communications

Area used to
exchange
data with the
CPU Unit
(not includ­ing remote I/
O allocation)

Fixed alloca­tions

User-set allo­cations

Master ❍❍

Slave X ❍

Allocated
CIO Area
words

Allocated DM
Area words

Dedicated
DM area

series Expansion Rack
1 Master 3 Masters (Select unique words must be

16 Masters (Configurator required) 16 Masters (even without the Configurator)

munications

Required Not required

2,000 to 2,009 + (10 x unit number) 1,500 to 1,524 + (25 x unit number)

Not used D30000 to D30099 (100 x unit number)

D06032 to D06033 + (2 x unit number) Not used.

CPU Rack, CS/CJ-series Expansion Rack

allocated using the software switches.)
3 Slaves (Select unique words must be allo­cated using the software switches.)

a local network table is necessary.

tor

Explicit message send, FINS message com­munications

Note Can send and receive explicit mes-

sages to the PC to which a C200H
DeviceNet Master Unit or CVM1/CV
DeviceNet Master Unit is mounted.
Cannot sent or receive FINS mes­sages.

Note With user-set allocations using the

allocated DM Area words however,
the Allocation Size Setup Table must
be allocated to a position in I/O mem­ory.

33

Comparison with Previous Models Section 1-4

Item C200HW-DRM21-V1 CS1W-DRM21(-V1)/CJ1W-DRM21

Remote I/O
communica­tions Master

Fixed alloca­tions

User-set allo­cations

C200H DeviceNet words in CIO Area
1,600 points (50 input words, 50 output
words)

Output area: CIO 0050 to CIO 0099
Input area: CIO 0350 to CIO 0399

Node addresses: 0 to 49, node address
order, 1 word/node address

• Slaves with 8 points: Require 1 word even though they are allocated the rightmost byte
(requires 1 node address)

• Slaves with 16 points: Require 1 word (require 1 node address)

• Slaves with over 16 points: Require multiple words (require multiple node addresses)

Set by the Configurator. Set from allocated DM Area words (Master

When using the message communications
function:
1,600 pts max. (800 input words, 800 output
words)

When not using the message communica­tions function:
4,800 pts max. (2,400 input words, 2,400
output words)

The following areas can be set:
CIO: 0000 to 0235, 0300 to 0511
CIO: 1000 to 1063
HR: HR000 to HR099
DM: D00000 to D05999

OUT 1, OUT 2, IN 1, and IN 2, for a total of 4
blocks can be set at any size (total for 1 to 4
blocks) at any position in the allocation
areas given above.

Any node addresses can be set within a
block.

With a total of 4 blocks and a maximum of
100 words per block, the maximum number
of words is 100 using message communica­tions and 300 without using the message
communications.

Maximum of 32 input words, 32 output
words per slave.

There are the following restrictions.

• The bytes 7 to 15 cannot be used for start bytes for slaves with more than 8 points.

• More than one master cannot share a slave.

• Slaves with 8 points: Require the leftmost or rightmost byte (does not require 1 word)

• Slaves with 16 points: Require 1 word

• Slave with over 16 points: Require multiple words (the last byte will be the rightmost byte
with an odd number of bytes)

CS/CJ-series DeviceNet words in CIO Area
2,048 points (64 input words, 64 output
words)

Select one of the following using the soft­ware switch.

Output area: (1) CIO 3200 to CIO 3263

(2) CIO 3400 to CIO 3463
(3) CIO 3600 to CIO 3663

Input area: (1) CIO 3300 to CIO 3363

(2) CIO 3500 to CIO 3563
(3) CIO 3700 to CIO 3763

Node addresses: 0 to 63, node address
order, 1 word/node address

User Allocation Setup Table) or the Configu­rator.

When set from allocated DM Area words:
16,000 pts max. (8,000 input words, 8,000
output words)

When set from the Configurator:
32,000 pts max. (16,000 input words, 16,000
output words)

The following areas can be set:
CIO: 0000 to 6143
WR: W000 to W511
HR: HR000 to HR511 words
DM: D00000 to D32767
EM: E00000 to E32767 (Banks 0 to C sup­ported)

Any position in the allocation areas given
above.

Using allocated DM Area words: Total of two
block, OUT 1 and IN 1.

Using the Configurator: A total of 3 blocks,
OUT 1, IN 1, and IN 2

500 words max. per block
Using allocated DM Area words:

1,000 words total for 2 blocks
Using the Configurator:

2,000 words total for 4 blocks
Using 2 connections:

Maximum of 200 input words, 100 output
words per slave.
Using 1 connection:
Maximum of 100 input words, 100 output
words per slave.

34

Comparison with Previous Models Section 1-4

Item C200HW-DRM21-V1 CS1W-DRM21(-V1)/CJ1W-DRM21

Remote I/O
communica­tions Master

Remote I/O
Slave

Message
communica­tions

Configura­tion connec­tion method

I/O communications at star­tup

Max. No. of
slaves con­nected

Fixed alloca­tions

User-set allo­cations

Execute com­mands

Max. No. of
nodes for
message
communica­tions

Gateway
function from
serial com­munications

Inter-net­work function

Serial con­nection

Direct con­nection to
DeviceNet

With no Configurator (fixed allocations):
50 nodes

With no Configurator (user-set allocations):
63 nodes

No DeviceNet words in CIO Area: 32 points

No Set in the allocated DM Area words or the

Sending/receiving data: No
Any FINS command: IOWR instruction

8 nodes 63 nodes

Not supported Allows the CX-Programmer connected by a

Not supported Supported

Not supported Supported (Peripheral Bus or Host Link con-

Supported Supported

Specifies I/O communications start/stop
after each slave on the scan list starts
(nodes that perform explicit message com­munications must also be registered in the
scan list).

63 nodes for fixed or user-set allocations

(1 input word, 1 output word)
Select one of the following:
Input area to the Slave:

(1) CIO 3370, (2) CIO 3570, (3) CIO 3770
Output area from the Slave:

(1) CIO 3270, (2) CIO 3470, (3) CIO 3670

Configurator.
The following areas can be set:

CIO: CIO 0000 to CIO 6143
WR: W000 to W511
HR: HR000 to HR511
DM: D00000 to D32767
EM: E00000 to E32767 (Banks 0 to C sup­ported)

Using the allocated DM Area words:
Can create OUT 1 and IN 1 for a total of 2
blocks.

Using the Configurator:
Can create OUT 1, IN 1, and IN 2 for a total
of 3 blocks.

100 words max. per block
Using the allocated DM Area words: 200
words total for 2 blocks
Using the Configurator: 300 words total for 3
blocks

Sending/receiving data: SEND/RECV
instructions
Any FINS command: CMND instruction

serial line to remotely control and monitor a
PLC on the DeviceNet (scheduled for Ver.

2.1).

Allows inter-network communications
between DeviceNet and networks like Con­troller Link and Ethernet (3 levels max.).

nection to a CPU Unit or a Serial Communi­cation Board/Unit)

Sets Master start/stop (using a software
switch or the Configurator).

Performs I/O communications only with
slaves registered in the scan list. (Explicit
message nodes do not have to be registered
in the scan list.)

35

Comparison with Previous Models Section 1-4

Item C200HW-DRM21-V1 CS1W-DRM21(-V1)/CJ1W-DRM21

Starting and stopping remote
communications during I/O
communications

Remote I/O communications
with a communications error

Communications parameters Can be changed (communications cycle time).
Sending explicit messages

to slaves made by another
company

Master error history Yes (Can be read by the Configurator or FINS command.)
Setting communications

cycle time
Monitoring current communi-

cations cycle time
Switch that disables commu-

nications error stoppage

Error with multiple Units
mounted

Error code on
the front
panel 7-seg­ment display

Error with
multiple Units
mounted

PLC initializa­tion error

RAM error Display: F5 Changed to H3 (related to the above).
Incorrect

switch setting
Routing table

error
PLC Unit

WDT error
EEPROM

error
Configura-

tion data
error (scan
list SUM
error)

Starts or stops remote I/O communications using the Configurator or the software switch
from a Programming Device.

Sets remote I/O communications start or stop when an error occurs in master communica­tions (set on DIP switch on the front of the Master).

Supported

Supported (by the Configurator) Supported (with or without the Configurator)

Supported

The switch that cancels communications
error stoppage is different from the one that
starts remote I/O communications.

A mounting error occurs with fixed alloca­tions.

Display: E4 No check for multiple mounted Units.

Display: F5 Used more detailed error codes in initializa-

Display: F5 Changed to H5 (related to the above).

Display: E5 Changed to HC (related to the above).

Display: All lit Display: E7 Unit does not reset. Explicit

Display: F8 Stops operation to store the
scan list.

Display: E8 Continues operation in DIS­ABLED mode.

The same software switch is used to cancel
communications error stoppage and to start
remote I/O communications.

An error does not occur even with multiple
Units mounted. Operation will continue even
if the same words are allocated to more than
one Unit.

tion phase. Display: H@.

server functions run.
Display: E3 Operation continues for error

history only (scan list stored in flash ROM)
Display: F7 Stops remote I/O communica-

tions in Master communications.

36

Outline of the Configurator Section 1-5

1-5 Outline of the Configurator

Allocations for remote I/O communications can be set in any order of node
addresses from the Configurator. Users can also set remote I/O communica­tions connections.

Device (master/slave) registration, I/O allocations, and other operations are
especially easy to perform because of graphic operations, including dragging
and dropping icons.

Any of the following methods can be used to connect the Configurator to
DeviceNet. All the connection methods support the same online connection
functions.

Connection from Dedicated Board/
Card Installed in Computer

Serial Connection from COM
port of Computer

WS02-CFDC1-E
Configurator

ISA Board or PCMCIA Card

DeviceNet Network

The Configurator is treated as a single
DeviceNet node.

CS/CJ-series
DeviceNet Unit

The Configurator is not treated as a
single DeviceNet Node.

1-5-1 Models

Product Model Contents Method of connecting

Configurator
(Ver. 2.@)

WS02-CFDC1-E Installation disk

(CD-ROM)

personal computer to

network

Either one of the following
methods

• Serial connection

• Dedicated PCI Board

• Dedicated PCMCIA Card
(See table below.)

WS02-CFDC1-E
Configurator

COM port

Peripheral bus or Host Link

Peripheral or RS-232C port of
CPU Unit or RS-232C port of
Communications Board/Unit

DeviceNet network

Personal

computer

IBM PC/AT or
compatible

OS

Windows 95,
98, Me, NT4.0,
2000, or XP

Note Use the following dedicated Boards and Card.

Model Contents Personal

computer

3G8F7-DRM21 Dedicated PCI Board (Configurator is not included.) IBM PC/AT or

compatible

3G8E2-DRM21-V1Dedicated PCMCIA Card and Configurator (Ver.2)

installation disk

The main functions of the Configurator are illustrated below. For further
details, refer to the DeviceNet Configurator Operation Manual (W382).

OS

Windows 95, 98, NT4.0, 2000,
or XP

Windows 98, Me, 2000, or XP

37

Outline of the Configurator Section 1-5

Remote I/O master allocations (with creation of a scan list) and
remote I/O slave allocations

Enabling or disabling master or slave function of CS/CJ-series
DeviceNet Unit.

Setting master device parameters except scan list parameters
(i.e., connection settings, device data checks, and
communications cycle time)

Setting other manufacturers' slave and master device
parameters

Displaying a device information list

Monitoring master status, Unit status, Master error logs, and
communications cycle data

Main functions of
Configurator

Setup functions

Monitoring functions

Storage functions

Saving offline device information prepared with master device
parameters or online network device information (Data is saved
as network configuration files.)

Note 1. Master device parameters used in a scan list are created with either of the

following methods.
a) Using the Parameter Wizard
b) Setting all parameters

2. Connect only one Configurator to each Network.

3. Do not use the Configurator in a location with too much electromagnetic
noise, particularly when using a PCMCIA Card. If noise is too extreme, the
computer may run out-of-control, although there will be no negative effects
on the DeviceNet network even if noise causes the computer to run out-of­control.

4. The only DeviceNet masters that can be handled by the Configurator are
OMRON’s CS1W-DRM21(-V1), CJ1W-DRM21, CVM1-DRM21-V1, and
C200HW-DRM21-V1.

1-5-2 Configurator Specifications

Item Specification

Operating envi­ronment

Network connection method Dedicated Board/Card 3G8F7-DRM21: Dedicated PCI Board

Dedicated
Board/Card

Hardware Personal computer: IBM PC/AT or compatible

OS Windows 95, 98, Me, NT4.0, 2000 or XP

Network status A single node address is used.
Connectable

number of
Boards/Cards

CPU: Pentium 166 MHz or higher (with Windows NT)
Memory: 32 Mbytes
Hard disk: A minimum of 15 Mbytes

3G8E2-DRM21-V1: Dedicated PCMCIA Card

Serial connection (to
DeviceNet network with
gateway)

One/network

• Peripheral or RS-232C port of PLC with DeviceNet
Unit mounted.

• RS-232C port of Serial Communications Board/Unit.

Serial communications mode: Peripheral bus or Host
Link

38

Outline of the Configurator Section 1-5

Item Specification

Main functions Setup functions Master device parameter settings for OMRON’s Master

• Remote I/O master allocations (with a scan list)
The node address order can be set as desired. Two output blocks and two input
blocks can be allocated. (See note.)

• Remote I/O slave allocations

• Setting master remote I/O communications connections

• Setting slave remote I/O communications connections

• Enabling or disabling device data checks through remote I/O communications
(checks on slave vendor ID, device type, and product code data)

• Setting an explicit message monitor timer list

• Setting a COS/cyclic heart beat timer value

• Setting the communications cycle time

Note 1. A device Parameter Wizard is supported for the Master.

2. Using remote I/O master allocations eliminate restrictions on node
addresses. Furthermore, a number of masters can be mounted to the PLC
with no allocation area duplication.

Setting parameters for other manufacturers’ slaves (EDS file required).
Setting node addresses and baud rates

Monitoring func­tions

Storage func­tions

Other functions • Reading/writing and preparing EDS files

Files that can be written • Master parameter files (parameters for OMRON Master: 1 file per node)

• Listing information on devices connected to the network (in node address order or
remote I/O configuration order, for example)

• Monitoring Unit status data, Master function status data, and slave function status
data

• Monitoring Master error history
CVM1-DRM21-V1 or C200HW-DRM21-V1: Up to 20 records of time, error code,

and error condition data

CS1W-DRM21-V1 or CJ1W-DRM21: For unit version 1.1 or later, up to 96

records of time, error code, and error condi­tion data, and for earlier unit versions, up to
64 records

• Monitoring communication cycle time

Saving offline device information prepared with master device parameters or online
network device information. Such data is saved as network configuration files.

• Checking for duplicate I/O allocations in master parameters

• Printing master/slave device parameters

• Installing Expansion Modules to expand functions

Note Slave communications are saved as well in the master device parameters file

with the DeviceNet Unit.

• Slave device parameter files (parameters for slaves: 1 file per node)

• Network file (all master/slave parameters for masters/slaves in the device list: 1 file/
network)

• EDS file (DeviceNet device definition file: 1 file/device type)

39

Basic Operating Procedures Section 1-6

1-6 Basic Operating Procedures

1-6-1 Network Installation Procedure

Note For details on the network installation procedure, refer to the DeviceNet Oper-

ation Manual (

W267). Only a general description is given here.

Check

(1)

(2)

Determine a suitable baud rate for the
system.

Determine the node arrangement, the wiring configura­tion, and the cable lengths.

A) Restrictions on lengths of trunk lines and
branch lines and total drop line length. (Selection
of thick cables or thin cables)

B) Separation from noise sources.

Do (1) and (2) above meet the
DeviceNet specifications?

Ye s

(3)

Determine the method for providing a
communications power supply.

No

Arrange for the required devices.

(4)

Delivery of devices.

(5)

Installation

1-6-2 Hardware Preparations for Communications

1,2,3... 1. Set the initial settings for the DeviceNet Unit:

Unit No. (UNIT No.)
Node address (NODE ADR)
Baud rate (DIP switches 1 to 2)
Communications continue/stop setting for communications errors (DIP
switch pin 3)(with Master communications)
I/O hold/clear for communications errors (DIP switch pin 4)(with Slave
communications)

2. Set the initial settings for slaves:

40

Basic Operating Procedures Section 1-6

Node address (Pins 1 to 6)
Baud rate (Pins 7 and 8)
Etc.

3. Mount the Master and wire the network.
Treat as a CPU Bus Unit.

Can mount to a CPU Rack or Expansion Rack.
With fixed allocations: 3 Units max.
With user-set allocations: 16 Units max.

4. Connect a Programming Device to the PLC and turn ON the power supply
to the PLC.

5. Generate the I/O tables.

Note 1. A slave may not go online if the communications power supply is turned

ON after the slave is turned ON.

2. The communications power supply and slave power supply, the slave pow­er supply and PLC power supply, or all three of these power supplies may
be turned ON simultaneously.

1-6-3 Creating Routing Tables

The DeviceNet Unit functions as a Communications Unit in the same way as a
SYSMAC LINK Unit, Controller Link Unit, and Ethernet Unit.

It is therefore necessary to create routing tables for the communications func­tions to be used, as shown in the table below.

Mounted Units Using master or

slave functions only

DeviceNet Unit is the
only Communica­tions Unit mounted

Multiple DeviceNet
Units mounted as
Communications
Units

DeviceNet Unit and
other Communica­tions Unit mounted
simultaneously

Not necessary (See note 1.) Local network table (see

Not necessary (See
note 1.)

Local network table necessary (See note 2.)

Note 1. If a local network table already exists in the CPU unit being used, the De-

2. The DeviceNet Unit must be registered in the local network table.

Refer to 6-3 Using FINS Message Communications for information on the
routing tables.

The routing tables are created using CX-Net inside the CX-Programmer.
Refer to the CX-Programmer Operation Manual (WS02-CXPC1-EV50)
(W446) for details.

Using explicit

message

communications

(not supported

across networks)

Local network table necessary (See note 2.)

Using FINS

message

communications

not across networks

viceNet Unit must be registered in that table.

Using FINS message

communications across

networks

note 2.) and relay network
table are necessary.

Note 1. A local network table is sometimes necessary even when the DeviceNet

Unit is not operating across networks.

2. If you prepare a local network table inside the CPU Unit, be sure to register
the DeviceNet Unit.

41

Basic Operating Procedures Section 1-6

3. Even if a local network table exists inside the CPU Unit, the 7-segment dis­play of the DeviceNet Unit may indicate “HC” and FINS message/explicit
message communications may not be possible unless the DeviceNet Unit
is registered in the local network table.

1-6-4 Procedures Prior to Starting Communications

Using the Master Function

To use the master function, the Master Enable Switch (word n, bit 06) must be
turned ON from a Programming Device. Enable master communications
through CS1W-DRM21(-V1) properties if you are using a Configurator.

Note 1. Make sure the scan list is enabled when using the master function. This

will allow you to check whether slaves are online or not from the CPU Unit
so that you will be able to determine whether or not the DeviceNet is com­municating properly.

2. Remote I/O communications with a specified slave can be turned OFF
(disconnected) by turning ON (1) the corresponding Disconnect/Connect
Switch (words n+6 to n+9) when a slave is replaced or is registered in the
scan list prior to being connected. These switches are cleared when the
power supply is turned OFF, however, so a bit must be turned back ON (1)
from the ladder program when the power turns ON for it to be valid again.

Fixed Allocations

Use the following procedure to use fixed allocations. Refer to 4-3 Fixed Alloca­tions for details on fixed allocations.

1,2,3... 1. Turn ON the communications, slave, and PLC power supplies.

Note Turn ON the communications power supply before turning ON the

slave power supplies or the slaves may not go online.

2. Switch the CPU Unit to PROGRAM mode.

3. Check Unit Status 2 (word n+11, bit 03) from a Programming Device con­nected to the CPU Unit to see if the master function is ON (enabled). If it
is enabled, skip step 4 below and proceed to step 5.

4. If the master function is OFF (disabled), turn ON the Master Enable Switch
(word n, bit 06) from a Programming Device connected to the CPU Unit.

Note Execute this only when master communications are turned OFF. (If

the Master Enable Switch is turned ON when master communica­tions are ON, a Unit error will occur and a C2 error will be displayed
on the 7-segment display on the front panel.)

5. Turn ON the Master Fixed Allocation Area Setting 1 to 3 Switches (word n,
bits 8 to 10). Master remote I/O communications will begin with the scan
list disabled.

6. Turn ON the Scan List Enable Switch (word n, bit 00). Master remote I/O
communications will begin with the scan list enabled.

7. Switch the CPU Unit to RUN mode.

User-set Allocations Using Allocated DM Area Words

Use the following procedure to set allocations using the words allocated to the
Unit in the DM Area. Refer to 4-4 User-set Allocations for details on user-set
allocations.

1,2,3... 1. Turn ON the communications, slave, and PLC power supplies.

Note Turn ON the communications power supply before turning ON the

slave power supplies or the slaves may not go online.

42

Basic Operating Procedures Section 1-6

2. Switch the CPU Unit to PROGRAM mode.

3. Check Unit Status 2 (word n+11, bit 03) from a Programming Device con­nected to the CPU Unit to see if the master function is ON (enabled). If it
is enabled, skip step 4 below and proceed to step 5.

4. If the master function is OFF (disabled), turn ON the Master Enable Switch
(word n, bit 06) from a Programming Device connected to the CPU Unit.

Note Execute this only when master communications are turned OFF. (If

the Master Enable Switch is turned ON when master communica­tions are enabled, a Unit error will occur and a C2 error will be dis­played on the 7-segment display on the front panel.)

5. Input data in advance into the Master User Allocation Setup Table (words
m+1 to m+6) and the Allocation Size Setup Table (specify the position in
words m+5 and m+6)

6. Turn ON the Master User-set Allocation Switch (word n, bit 11). Master re­mote I/O communications will begin with the scan list enabled.

7. Switch the CPU Unit to RUN mode.

User-set Allocations Using the Configurator

Use the following procedure to set allocations using the Configurator. Refer to
DeviceNet Configurator Operation Manual for details on Configurator operat­ing procedures

1,2,3... 1. Turn ON the communications, slave, and PLC power supplies.

Using Slave Function

Note Turn ON the communications power supply before turning ON the

slave power supplies or the slaves may not go online.

2. Switch the CPU Unit to PROGRAM mode.

3. Create a network configuration file and device parameters file from the
Configurator. (Enable master communications in CS1W-DRM21(-V1)
properties at this time.)

4. Download the above files to the devices on the network. Remote I/O com­munications will begin with the scan list enabled.

5. Switch the CPU Unit to RUN mode.

To use the slave function, the Slave Enable Switch (word n+1, bit 06) must be
turned ON from a Programming Device. Enable slave communications
through CS1W-DRM21(-V1)/CJ1W-DRM21 properties if you are using a Con­figurator.

With fixed allocations or allocations set in the allocated DM Area words, slave
communications must be disabled prior to area allocation and must be
enabled following area allocation. The order of the procedure is thus Slave
Stop Switch (if slave communications are enabled), area allocation, and Slave
Enable Switch.

Note Slave communications must be disabled prior to area allocation when using

fixed allocations or allocations set in the allocated DM Area words, and the
settings must be read to the Unit when slave communications are enabled.
Allocations will not be valid if slave communications are enabled during area
allocation.

Fixed Allocations

Use the following procedure to use fixed allocations. Refer to 5-2 Fixed Alloca­tions for details on fixed allocations.

43

Basic Operating Procedures Section 1-6

1,2,3... 1. Switch the CPU Unit to PROGRAM mode.

2. Check Unit Status 2 (word n+11, bit 07) from a Programming Device con­nected to the CPU Unit to see if the slave function is OFF (disabled). If it is
disabled, skip step 3 below and proceed to step 4.

3. If slave communications are enabled, turn ON the Slave Stop Switch (word
n+1, bit 07).

4. Turn ON the Slave Fixed Allocation Area Settings 1 to 3 Switches (word
n+1, bits 8 to 10).

5. Turn ON the Slave Enable Switch (word n+1, bit 06) from a Programming
Device connected to the CPU Unit.

Note Execute this only when slave communications are turned OFF. (If the

Slave Enable Switch is turned ON when slave communications are
enabled, a Unit error will occur and a C2 error will be displayed on
the 7-segment display on the front panel.)

6. Switch the CPU Unit to RUN mode. Slave remote I/O communications will
begin.

User-set Allocations Using Allocated DM Area Words

Use the following procedure to set allocations using the words allocated to the
Unit in the DM Area. Refer to 5-3 User-set Allocations for details on user-set
allocations.

1,2,3... 1. Switch the CPU UNit to PROGRAM mode.

2. Check Unit Status 2 (word n+11, bit 07) from a Programming Device con­nected to the CPU Unit to see if the slave function is OFF (disabled). If it is
disabled, skip step 3 below and proceed to step 4.

3. If Slave is enabled, turn ON the Slave Stop Switch (word n+1, bit 07).

4. Input data in advance into the Slave User Allocation Setup Table (words
m+8 to m+13).

5. Turn ON the user Slave User-set Allocation Switch (word n+1, bit 11).

6. Turn ON the Slave Enable Switch (word n+1, bit 06) from a Programming
Device connected to the CPU Unit.

Note Execute this only when slave communications are turned OFF. (If the

Slave Enable Switch is turned ON when slave communications are
enabled, a Unit error will occur and a C2 error will be displayed on
the 7-segment display on the front panel.)

7. Switch the CPU Unit to RUN mode. Slave remote I/O communications will
begin.

User-set Allocations Using the Configurator

Use the following procedure to set allocations using the Configurator. Refer to
DeviceNet Configurator Operation Manual for details on Configurator operat­ing procedures

1,2,3... 1. Switch the CPU Unit to PROGRAM mode.

2. Create a device parameter file from the Configurator. (Enable Slave com­munications in CS1W-DRM21(-V1) properties at this time.) Then down­load the file to the DeviceNet Unit.

3. Turn ON the Slave Enable Switch (word n+1, bit 06) from a Programming
Device connected to the CPU Unit.

Note Execute this only when slave communications are turned OFF. (If the

Slave Enable Switch is turned ON when slave communications are

44

Basic Operating Procedures Section 1-6

enabled, a Unit error will occur and a C2 error will be displayed on
the 7-segment display on the front panel.)

4. Switch the CPU Unit to RUN mode. Slave remote I/O communications will
begin.

Message Communications Only (Neither Master nor Slave Function Used)

The DeviceNet Unit does not have to be registered in the scan list if it is only
used for message communications. Message communications (send and
receive) can be executed with both master and slave communications dis­abled.

45

List of Usage Methods by Purpose Section 1-7

1-7 List of Usage Methods by Purpose

Situation Action Page

Design Allocating any

words for
remote I/O

Using the Unit as a slave Set using the allocated DM Area words. 126
Performing message communi-

cations between PLCs to which
DeviceNet Units are mounted

Mounting multiple DeviceNet
Units using master communica­tions to a single PLC

Mounting multiple DeviceNet
Units using slave communica­tions to a single PLC

Connecting multiple PLCs (mas­ter communications) in a network

Connecting a single Master PLC
and multiple Slave PLCs in a net­work

Sending DeviceNet explicit mes­sages

Setting the node address for a
DeviceNet Unit

Setting the baud rate for the
DeviceNet Unit

Stopping remote I/O communica­tions for communications errors

Holding OUT data in slave I/O
memory for communications
errors

In order of node
addresses

Not in order of
node
addresses

Set using the allocated DM Area words.
(Master User Allocations Setup Table and Alloca­tion Size Setup Table)

Note Allocations using allocated DM Area words:

Order of node addresses and two blocks,

OUT 1 and IN 1.
Set using the configurator.
Note Allocations using Configurator: Any node

address order and four blocks, OUT 1, IN 1,

OUT 2 and IN 2. Allocation is much easier

using a wizard.

Execute communications instructions from the user
program.

3 Units max. with fixed allocations
16 Units max. with user-set allocations

3 Units max. with fixed allocations
16 Units max. with user-set allocations

Supported by user-set allocations using allocated
DM Area words or user-set allocations using the
Configurator.

Set multiple PLCs to Slave mode from the allo­cated DM Area words or the Configurator.

Note Up to 64 Units may be on a network.

(Example: 1 Master PLC and 63 Slave

PLCs)
Set the FINS command code to 2801. 142

Set the rotary switches on the front of the
DeviceNet Unit.

Set the DIP switch on the front of the DeviceNet
Unit.

Set the DIP switch on the front of the DeviceNet
Unit.

Set the DIP switch on the front of the DeviceNet
Unit.

112

117

138

96

126

126

126

53

54

55

55

46

List of Usage Methods by Purpose Section 1-7

Situation Action Page

Operation Stopping remote I/O communica-

tions with all Slaves

Using a scan list in remote I/O
communications (fixed alloca­tions)

Enabling a scan list in remote I/O
communications (user-set alloca­tions by allocated DM Area
words)

Changing the communications
system configuration

Checking master I/O allocation
status (fixed allocations, user-set
allocations by allocated DM Area
words, user-set allocations by the
Configurator)

Checking to see if all slaves are
registered in the scan list

Checking to see if all slaves are
performing remote I/O communi­cations properly

Checking to see if there is an
error history in the DeviceNet
Unit

Monitoring the error history in the
DeviceNet Unit

Monitoring status of the
DeviceNet Unit

Checking the current communi­cations cycle time

Adjusting the communications
cycle time

Saving all parameters, like scan
list data, for masters and slaves
on the network

Replacing a DeviceNet Unit 1. Insert a Memory Card in the CPU Unit and turn

Stop communications using the Configurator or the
Remote I/O Communications Stop Switch in the
allocated CIO Area words.

Turn ON the Scan List Enable Switch in the allo­cated CIO Area words.

Set the allocation areas using the allocated DM
Area words, and turn ON the user-set allocations
user setting switch for the allocated CIO Area
words.

Turn ON the Scan List Clear Switch for the allo­cated CIO Area words, and turn the Scan List
Enable Switch back ON after you change the com­munications system.

Monitor the Master Status 2 status codes in the
allocated CIO Area words from a Programming
Device.

Check the Registered Slave Table in the allocated
CIO Area words.

Check the Normal Slave Table in the allocated CIO
Area words.

Check the error history (registration yes/no) in the
allocated CIO Area words from a Programming
Device.

Execute the device monitor function from the Con­figurator (Error History Tab).

Execute the device monitor function from the Con­figurator (Status and Unit Status Tabs).

Execute the device monitor function from the Con­figurator (Current Communications Cycle Time
Ta b ).

Execute the device parameter edit function from
the Configurator (Communications Cycle Time
Ta b ).

Save the network configuration from the Configura­tor.

ON the Unit Setup File Backup Switch in the
allocated CIO Area words.

2. Replace the DeviceNet Unit.

3. Turn ON the Unit Setup File List Switch in the
allocated CIO Area words.

4. Turn ON Scan List Clear Switch in the allocated
CIO Area words.

5. Make sure the slave is connected, and then turn
ON the Scan List Enable Switch.

66

65

68

104

78

81

82

76

DeviceNet Con­figurator Opera­tion Manual

232

47

List of Usage Methods by Purpose Section 1-7

48

Nomenclature and Installation

This section describes the nomenclature and installation of the DeviceNet Unit.

2-1 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-1-1 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-1-2 Status Indicators: MS and NS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2-1-3 Seven-Segment Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2-1-4 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2-2 Installing the DeviceNet Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

2-2-1 System Configuration Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . 55

2-2-2 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

2-2-3 Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

2-2-4 External Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

SECTION 2

49

Nomenclature and Functions Section 2-1

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

F

E

D

C

B

A

9

8

7

6

5

4

3

2

1

0

S

S

6

7

8

9

3

4

5

6

7

8

9

E

0

0

0

2-1 Nomenclature and Functions

2-1-1 Nomenclature and Functions

CS1W-DRM21(-V1)

CJ1W-DRM21

DRM21

MS

NS

NODE
ADR

UNIT
No.

X10

1234

ON

CS

Indicators

Unit No. switch
This switch sets the unit number of the DeviceNet Unit

as a one-digit hexadecimal value.

1

0

X10

1

DR0

2

DR1

3

ESTP
HOLD

4

Node address switches
These switches set the node address as a two-digit

decimal value.

DIP switch
The pins have the following functions:

Pins 1 and 2: Baud rate
Pin 3: Continue/Stop communications for error
(when used as a Master)
Pin 4: Hold/clear I/O for communications error
(when used as a Slave)

Communications connector
Connect the Network communications cable to this

connector. The communications power for this Unit is
also supplied through this connector.
A parallel connector with screws (XW4B-05C1-H1-D)
is provided for node connection.

M
N

0

HOLD

4
3

ESTP

2

DR1

1

DR0

NOD

x1

x1

ON

ON

1234

Indicators

Unit No. switch
This switch sets the unit number of the DeviceNet Unit as a one-

digit hexadecimal value.

Node address switches
These switches set the node address as a two-digit decimal value.

DIP switch
The pins have the following functions:

Pins 1 and 2: Baud rate
Pin 3: Continue/Stop communications for error (when used as a
Master)
Pin 4: Hold/clear I/O for communications error (when used as a
Slave)

Communications connector
Connect the Network communications cable to this connector. The

communications power for this Unit is also supplied through this
connector.
A parallel connector with screws (XW4B-O5C1-H1-D) is provided
for node connection.

Indicators

The DeviceNet Units are equipped with the following indicators that indicate
the operating status of the node itself and the overall network.

1,2,3... 1. Two status indicators (two-color: Green or red LEDs)

2. A two-digit, 7-segment display

3. Two dot indicators

50

Nomenclature and Functions Section 2-1

2. Two-digit, 7-segment display

MS

1. Status indicators

NS

3. Dot indicators

2-1-2 Status Indicators: MS and NS

The MS (Module Status) indicator indicates the status of the node itself and
the NS (Network Status) indicator indicates the status of the network.

The MS and NS indicators can be green or red and they can be OFF, ON, or
flashing (alternating 0.5-s ON and 0.5-s OFF.) The following table shows the
meaning of these indicator conditions.

Indi-

cator

MS Green ON Normal operating status

NS Green ON The Unit is online with the network and remote I/O com-

Color Status Meaning (likely errors)

Communications are being performed normally.

Red ON A non-recoverable, fatal error has occurred.

(Watchdog timer error, memory error, or system error.)
Replace the DeviceNet Unit.

Flashing A recoverable, non-fatal error has occurred. (Structure

error, switch setting error, PLC initialization error, PLC
interface error, or routing table error.)

Correct the error and reset the Unit.

--- OFF Power isn’t being supplied or the Unit is being reset.

munications have been established with a slave regis­tered in the scan list or message communications have
been established.

Flashing The Unit is online with the network, but neither remote

I/O communications nor message communications have
been established. Either the scan list is being read, or
both remote I/O communications and message commu­nications are disabled.

Red ON A fatal communications error has occurred. Network

communications are not possible.
(Node address duplicated or Bus Off error)

Flashing A non-fatal communications error has occurred. (Com-

munications error, setup error, or verification error)

--- OFF The Unit is not online with the network.
(There is no network power supply, the Unit is being
reset, a minor failure, or a sending error has occurred.)

51

Nomenclature and Functions Section 2-1

2-1-3 Seven-Segment Display

In addition to the MS and NS indicators, DeviceNet Units have a 2-digit, 7­segment display that normally indicates the master node address. When an
error occurs, the display will alternate between the error code and the node
address of the faulty slave.

There are dot indicators at the lower-right corner of each digit. The left dot
indicator shows whether or not the master is operating and whether the scan
list is enabled or disabled. The right dot indicator shows whether or not the
slave is operating.

Normal: Master Unit's node address
Error: Error code and faulty node address

Indicates whether the master is operating or stopped and
whether the scan list is enabled or disabled.

Indicates whether the slave is operating or stopped.

Seven-segment Digits

The following table shows the functions of the 7-segment digits.

Status Display

Remote I/O communications active and
normal

From power ON to completion of node
address check (master function disabled,
slave function disabled, or both disabled)

Remote I/O communications started Flashing (until com-

From completion of the node address
check until the start of remote I/O com­munications

Error Watchdog timer Not lit

Memory error or
system error

Other errors Alternately displays the error code and

Scan list Reading “- -” Flashing

Registered

Displays the mas­ter’s node address
(00 to 63)

Error code only Lit

error node address (see diagram below)

Lit

Flashing

munications actu­ally start)

Flashing

52

Nomenclature and Functions Section 2-1

F

E

D

C

B

A

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

The following diagram shows the alternating error code/ node address display.

Error code

(1 s)

OFF (0.1 s) OFF (0.3 s)

Faulty slave's

node address

(1 s)

OFF (0.3 s)

Master's node

address (1 s)

If there is an error at the DeviceNet Unit.

The master’s error code and master’s node address will be displayed if an
error has occurred at the master.

There is no priority in the error codes; all errors that have occurred will be dis­played in order. All error codes begin with letters, so they can be distinguished
from node addresses immediately.

Dot Indicators

The following table shows the functions of the dot indicators.

Indicator Content Display

Left dot Scan list enabled/

disabled, master
function disabled

Right dot Slave function dis-

abled

Error code

(1 s)

OFF (0.1 s)

OFF (0.1 s) OFF (0.3 s)

Faulty slave's

node address

(1 s)

Master's

error code (1 s)

OFF (0.3 s)

ON: Master function disabled
Flashing: Scan list disabled mode
OFF: Scan list enabled mode
ON: Slave function disabled
OFF: Slave operating

2-1-4 Switch Settings

Unit No. Switch Use this switch to set the unit number of the DeviceNet Unit as a CPU Bus

CS1W-DRM21(-V1) CJ1W-DRM21

5

4

6

3

7

2

1

0

F

B

E

C

D

Note 1. The unit number is set to 0 at the factory.

Node Address Switches Use these switches to set the node address of the Unit.

CS1W-DRM21(-V1) CJ1W-DRM21

3

2

4

X10

1

1

X10

0

0

1

5

0

6

7

9

8

1

X

10

Unit. The unit number setting determines the CIO and DM area words allo­cated to the Unit as software switches and the status area.

8

9

A

Setting method: One-digit hexadecimal
Setting range: 0 to F

2. Any unit number from 0 to F can be set as long as it hasn’t been set on
another CPU Bus Unit connected to the same PLC.

3. Use a small flat-blade screwdriver to turn the rotary switches; be careful
not to damage the switch.

4. Always turn OFF the PLC before changing the unit number setting.

5. If the unit number is the same as one set on another CPU Bus Unit con­nected to the same PLC, a duplicate number error will occur in the PLC
and it won’t be possible to start up the DeviceNet network.

Setting method: Two-digit decimal

3

2

4

5

6

7

9

8

Setting range: 0 to 63

0

X

10

53

Nomenclature and Functions Section 2-1

Note 1. The node address is set to 63 at the factory.

2. Any node address from 0 through 63 can be set as long as it hasn’t been
set on another slave node.

3. If the node address is the same as one set on another node, a node ad­dress duplication error will occur and it won’t be possible to start up net­work communications.

4. Node address 0 cannot be used for FINS message communication. Use a
node address other than 0 for FINS message communication.

DIP Switch The DIP switch on the front of the DeviceNet Unit is used to set the baud rate,

whether communications will be continued or stopped when a communica­tions error occurs, and whether to hold or clear the remote outputs when a
communications error occurs in the slave function.

CS1W-DRM21(-V1)

1234

ON

CJ1W-DRM21

Baud rate

Continue/stop communications for communications error (when used as a master)

Hold/clear I/O for communications error (when used as a slave)

ON

Hold/clear I/O for communications error (when used as a slave)

ON

Continue/stop communications for communications error (when used as a master)

Baud rate

1234

The settings of the DIP switch pins are shown in the following table. All pins
are set to OFF at the factory.

Pin Function Setting

1 Baud rate See the next table.
2
3 Continue/stop remote I/O communica-

tions for communication errors (when
used as a master)

4 Hold/clear remote outputs for commu-

nications error (when used as a slave)

OFF: Continue communications
ON: Stop communications

OFF: Clear remote outputs
ON: Hold remote outputs

Baud Rate

Pins 1 and 2 are used to set the baud rate as shown in the following table.

Pin 1 Pin 2 Baud rate

OFF OFF 125 kbps
ON OFF 250 kbps
OFF ON 500 kbps
ON ON Not allowed.

Note 1. Always turn OFF the PLC before changing the DIP switch settings.

2. Set the same baud rate on all of the nodes (Master and Slaves) in the Net­work. Any slaves with baud rates different from the master’s rate won’t be
able to participate in communications and may cause a communications
error between nodes that have been set properly.

54

Installing the DeviceNet Unit Section 2-2

Continue/Stop Remote I/O Communications

When the DeviceNet Unit is used as a master, pin 3 is used to set whether or
not communications will stop after a communications error.

Pin 3 Function

OFF Continue communications.
ON Stop communications.

If pin 3 is ON, remote I/O communications will be stopped if one of the follow­ing errors occurs.

Remote I/O Communications Error Flag (n+12, bit 02 is ON)
Send Timeout Flag (n+10, bit 08 is ON)

Network Power Error Flag (n+10, bit 07 is ON)
Remote I/O communications will remain stopped even if the error is cleared.
(Message communications and slave functions will continue.) To resume com­munications, turn ON the Remote I/O Communications Start Bit (word n, bit

02) of Software Switches 1. Refer to 3-2 Allocated CIO Area Words for details.

Note The 7-segment display will show “A0” when remote I/O communications stop.

Refer to SECTION 9 Troubleshooting and Maintenance.

If pin 3 is OFF, remote I/O communications will stop if a send timeout or net­work power error occurs, but will restart automatically when the cause of the
error is cleared.

Communications
Connectors

Hold/Clear Remote Outputs

When the DeviceNet Unit is used as a slave, pin 4 is used to set whether to
hold or clear remote outputs when a communications error occurs.

Note If the DeviceNet Unit is used as a slave, the 7-segment display will show “L9”

when remote I/O communications stop. Refer to SECTION 9 Troubleshooting

and Maintenance.

Color stickers that match communications cable colors are attached to the
communications connectors. Match the colors when connecting communica­tions cables to the connectors. These colors are given in the following table

Color Signal

Black Power line, negative voltage (V–)
Blue Communications line, low (CAN L)

--- Shield
White Communications line, high (CAN H)
Red Power line, positive voltage (V+)

For details on communications specifications and wiring, refer to DeviceNet
(CompoBus/D) Operation Manual (W267).

Note Before connecting communications cables, turn OFF the PLC power supply,

all slave power supplies, and the communications power supply.

2-2 Installing the DeviceNet Unit

2-2-1 System Configuration Precautions

• I/O words are allocated to CPU Bus Units according to the unit number
setting on the switch located on the front panel of the Unit, not according
to Unit slot numbers. Refer to 3-1 Overview of Word Allocations.

55

Installing the DeviceNet Unit Section 2-2

• In the CS-series, up to 16 Units can be mounted to the CS1W-BC@@3
CPU Backplane or CS1W-BI@@3 Expansion CPU Backplane.

• In the CJ-series, up to 16 Units can be mounted to the CPU Unit or
Expansion Unit (but no more than 10 Units on either).

2-2-2 Mounting

CS-series

Mount the DeviceNet Unit to the Backplane using the following procedure.

1,2,3... 1. Hook the claw on the bottom of the Unit onto the Backplane.

Claw

Backplane

2. Insert the Unit into Backplane connectors and securely tighten the screw
at the bottom of the Unit. Tighten the screws to a torque of 0.4 N·m.

3. When removing the Unit, first loosen the screw at the bottom of the Unit.

Fixing screws

56

Installing the DeviceNet Unit Section 2-2

PA205R

POWER

AC100-240V

L2/N

L1

DC24V

AC240V

O

UTPUT

RUN

PERIPHERA

L

RUN
INH

COMM
PRPHL

CONTROL

LER

P

R

OGR

A

M

M

ABLE

PORT

OPEN

4

DRM21

MS

NS

PA205R

POWER

AC100-240V

L2/N

L1

DC24V

OUTPUT

RUN

PERIPHERAL

RUN
INH

COMM
PRPHL

CONTROL

LER

P

R

OGR

A

M

M

ABLE

PORT

OPEN
BUS

Y

4

ON

DRM21

N

Note When mounting the Unit, provide the clearance shown below to facilitate easy

mounting or dismounting.

Duct

20 mm min.

Backplane

20 mm min.

Duct

Phillips screwdriver

CJ-series

1. Carefully align the connectors to mount the DeviceNet Unit.

Connectors

2. Move the yellow sliders on the top and bottom of the Unit until they click
into position, to lock.

Note If the sliders are not securely locked, the DeviceNet Unit functions may not

operate sufficiently.

To dismount the Unit, move the sliders to the “Release” direction.

2-2-3 Handling Precautions

• Always turn OFF the power supply to the PLC before mounting or dis­mounting a Unit or connecting or disconnecting cables.

Slider

Lock

Release

57

Installing the DeviceNet Unit Section 2-2

4

HOLD

MS

• Provide separate conduits or ducts for the I/O lines to prevent noise from
high-tension lines or power lines.

• 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.

CS1W-DRM21(-V1)

Remove the label after wiring.

CJ1W-DRM21

Remove the label after wiring.

4

ON

3

ESTP

3

2

DR1

1

DR0

12

58

Installing the DeviceNet Unit Section 2-2

CS

MS

NS

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

F

E

D

C

B

A

9

8

7

6

5

4

3

2

1

0

31

S

S

O.

UNIT

2-2-4 External Dimensions

CS1W-DRM21(-V1)

130

DRM21

MS

NS

NODE
ADR

35

1234

ON

UNIT
No.

X10

13.7

CS

1

0

X10

1

DR0

2

DR1

3

ESTP
HOLD

4

88

101

35

7

1512 8

These diagrams show the dimensions of the DeviceNet Unit. Refer to the CS1

Series CPU Unit Operation Manual (W339) or the CJ Series CPU Unit Opera­tion Manual (W393) for the dimensions of the Unit when it is mounted to the

Backplane. (All dimensions are in mm.)

CJ1W-DRM21

13.7 65

M
N

N

50

ON

HOLD

90

4
3
2
1

ESTP
DR1
DR0

ON

1234

35

5

1511 5

59

Installing the DeviceNet Unit Section 2-2

60

SECTION 3

Allocated CIO and DM Words

This section describes the words allocated to the DeviceNet Unit in the CIO Area and DM Area. These words both enable
controlling the DeviceNet Unit and accessing Unit and network status.

3-1 Overview of Word Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3-1-1 Allocated CIO Area Words. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

3-1-2 Allocated DM Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

3-2 Allocated CIO Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-2-1 Software Switches 1 (Word n) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-2-2 Software Switches 2 (Word n+1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-2-3 Master COS Send Switches (Words n+2 to n+5) . . . . . . . . . . . . . . . 72

3-2-4 Disconnect/Connect Switches (Words n+6 to n+9) . . . . . . . . . . . . . 73

3-2-5 Unit Status 1 (Word n+10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

3-2-6 Unit Status 2 (Word n+11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

3-2-7 Master Status 1 (Word n+12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

3-2-8 Master Status 2 (Word n+13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

3-2-9 Slave Status 1 (Word n+14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

3-2-10 Slave Status 2 (Word n+15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

3-2-11 Registered Slave Table (Words n+16 to n+19) . . . . . . . . . . . . . . . . . 81

3-2-12 Normal Slave Table (Words n+20 to n+23) . . . . . . . . . . . . . . . . . . . 82

3-2-13 C200H Master Replacement Master Status 1 (Word n+24) . . . . . . . 82

3-3 Allocated DM Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

3-3-1 Communications Cycle Time Setup Table . . . . . . . . . . . . . . . . . . . . 84

3-3-2 Master User Allocations Setup Table . . . . . . . . . . . . . . . . . . . . . . . . 85

3-3-3 Allocation Size Setup Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

3-3-4 Slave User Allocations Setup Table . . . . . . . . . . . . . . . . . . . . . . . . . 88

3-3-5 Communications Cycle Time Reference Table . . . . . . . . . . . . . . . . 90

3-3-6 Master User-set Allocations Reference Table . . . . . . . . . . . . . . . . . 90

3-3-7 Slave User-set Allocations Reference Table. . . . . . . . . . . . . . . . . . . 91

3-3-8 Slave Detailed Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

61

Overview of Word Allocations Section 3-1

3-1 Overview of Word Allocations

The words shown in the following diagram are allocated according to the unit
number setting. For each Unit, there are 25 words allocated in the CIO Area
and 100 words allocated in the DM Area.

First word allocated in the CIO Area: n = CIO 1,500 + (25 x unit number)
First word allocated in the DM Area: m = D30,000 + (100 x unit number)

Unit #0

Unit #1

Unit #15

Unit #0

Unit #1

CPU Unit

CPU Bus Unit

CIO Area
CIO 1500
CIO 1501

CIO 1524
CIO 1525

CIO 1526

CIO 1549

CIO 1875

CIO 1899

D30000
D30001

D30099
D30100
D30101

25 wds

25 wds

25 wds

CPU Bus Unit

Allocated DM Area words

100 wds

100 wds

Software switches

(I/O refresh) status

setup tables

(I/O refresh) status

DeviceNet Unit

Unit number: 0

Local memory

25 wds

Local memory

100 wds

62

Unit #15

D30199

D31500

100 wds

D31599

Note The CPU Bus Unit Setup words are not used with a CS/CJ-series DeviceNet

Unit.

Overview of Word Allocations Section 3-1

3-1-1 Allocated CIO Area Words

Software switches, DeviceNet Unit status, and error data are allocated in the
CIO Area according to the unit number, as shown below. Software switches
are bits used as commands from the CPU Unit to the DeviceNet Unit to
enable executing Unit functions.

Unit number Allocated words Unit number Allocated words

0 CIO 1500 to CIO 1524 8 CIO 1700 to CIO 1724
1 CIO 1525 to CIO 1549 9 CIO 1725 to CIO 1749
2 CIO 1550 to CIO 1574 10 CIO 1750 to CIO 1774
3 CIO 1575 to CIO 1599 11 CIO 1775 to CIO 1799
4 CIO 1600 to CIO 1624 12 CIO 1800 to CIO 1824
5 CIO 1625 to CIO 1649 13 CIO 1825 to CIO 1849
6 CIO 1650 to CIO 1674 14 CIO 1850 to CIO 1874
7 CIO 1675 to CIO 1699 15 CIO 1875 to CIO 1899

3-1-2 Allocated DM Area Words

The User Allocations Setup Tables and individual slave status by node
address are allocated in the DM area.

Unit number Allocated words Unit number Allocated words

0 D30000 to D30099 8 D30800 to D30899
1 D30100 to D30199 9 D30900 to D30999
2 D30200 to D30299 10 D31000 to D31099
3 D30300 to D30399 11 D31100 to D31199
4 D30400 to D30499 12 D31200 to D31299
5 D30500 to D30599 13 D31300 to D31399
6 D30600 to D30699 14 D31400 to D31499
7 D30700 to D30799 15 D31500 to D31599

63

Allocated CIO Area Words Section 3-2

3-2 Allocated CIO Area Words

Data is stored at the offset positions shown in the figure below starting from
the first word allocated to the Unit in the CIO Area.

The first word can be calculated as follows from the unit number setting:

First word n = CIO 1,500 + (25 x unit number)

Word Bit 15

n

n+1

n+2

n+3

n+4

n+5

n+6

n+7

n+8

n+9

n+10

n+11

n+12

n+13

n+14

n+15

n+16

n+17

n+18

n+19

n+20

n+21

n+22

n+23

n+24

Software Switches 1

Software Switches 2

Master COS Send Switches (4 words)

Disconnect/Connect Switches (4 words)

Unit Status 1

Unit Status 2

Master Status 1

Master Status 2

Slave Status 1

Slave Status 1

Registered Slave Table (4 words)

Normal Slave Table (4 words)

C200H Master Replacement Status (1)

Bit 00 Direction

I/O
CPU Unit ↔ DeviceNet Unit

Outputs
CPU Unit → DeviceNet Unit

Inputs
CPU Unit ← DeviceNet Unit

3-2-1 Software Switches 1 (Word n)

All switches execute some function when the user turns them ON. They turn
OFF automatically after the function has been executed. Once a function is
set by turning a switch ON (except for the switches listed below), it is saved
regardless of whether the power is turned OFF and ON again.

•

Remote I/O Communications Start Switch (bit 02, 03)

• Remote I/O Communications Stop Switch (bit 04)

Note No functions other than master and slave communications are disabled by

stopping master or slave communications.

If multiple bits are turned ON simultaneously, the requests will generate errors
but they will not alter Unit operation. The corresponding error bits in the follow­ing words will turn ON if a request made by a software switch ends in an error.

64

Allocated CIO Area Words Section 3-2

• Unit status area 2 (word n+11)

• Master Status 1 (word n+12)

Word n [n = CIO 1,500 + (25 x unit number)]

Bit Name Status Con-

trolled

by

00 Scan List

Enable
Switch

01 Scan List

Clear
Switch

OFF→ONUser Enables the scan list with fixed allocations.

OFF Unit Returns to OFF when the scan list is registered and the

OFF→ONUser Clears and disables the scan list.

OFF Unit Returns to OFF when the scan list data is cleared and

Note The allocated words are the ones set for use

when with the scan list is disabled.

The following allocated words are the default settings
when the scan list is disabled.

• OUT area: CIO 3200 to CIO 3263 (1 word/1 node ad­dress)

• IN area: CIO 3300 to CIO 3363 (1 word/1 node ad­dress)

Unit starts operating with the scan list enabled.

This switch clears the scan list and operates the Unit
using fixed allocations with the scan list disabled
regardless of the previous operation settings. The fixed
allocations used the last time the scan list was disabled
will be used.

the Unit starts operating with the scan list disabled.

Unit operation Operation condi-

tions

Mas-

ter

func-

tion

En­abled

En­abled

Scan

list

sta-

tus

Dis­abled

En­abled

CPU

Unit
oper­ating

mode

Pro­gram
mode

Pro­gram
mode

Default
setting

Scan
list dis­abled

Scan
list dis­abled

65

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

trolled

by

02 Remote

OFF→ONUser Starts remote I/O communications.
I/O Com­munica­tions Start
Switch

OFF Unit Returns to OFF at the start of remote I/O communica-

Remote I/O

03

Communi­cations
Start
Switch

04 Remote

OFF→ONUser This switch functions the same as bit 02 above.

OFF Unit

OFF→ONUser Stops remote I/O communications.
I/O Com­munica­tions Stop
Switch

OFF Unit Returns to OFF when remote I/O communications

05 Reserved

--- --- --- --- --- --- ---

by system

Unit operation Operation condi-

Note 1. The switch is ignored if remote I/O commu-

nications are already running.

2. This switch is used to restart remote I/O
communications if they are stopped by a
communications error.

3. Communications with a slave will fail even if
remote I/O communications are started if
the Disconnect/Connect Switch (corre­sponding bit in words n+6 to 9) is ON (1:
Connect).

tions.
Note This switch will stop remote I/O communications

if DIP switch pin 3 on the front panel (remote I/O
communications start/stop with a communica­tions error) is ON (stop) and there is an ongoing
communications or send error.

Note This switch is used to ensure compatibility

between the software switches and C200H
DeviceNet Master (C200HW-DRM21-V1).

Once remote I/O communications have been stopped,
they will remain stopped until the Unit has been
restarted or the remote I/O communications have been
restarted (i.e., until the Remote I/O Communications
Start Switch is turned ON).

Note 1. The switch is ignored if remote I/O commu-

nications are already stopped.

2. Message communications will remain
enabled even if remote I/O communications
have stopped.

stop.

tions

CPU

Mas-

Unit

oper-

func-

ating

tion

mode

--- En­abled

---

En­abled

--- En­abled

ter

Default
setting

Scan

list

sta-

tus

--- None

---

---

66

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

trolled

by

06 Master

Enable
Switch

07 Master

Stop
Switch

08 Master

Fixed
Alloca­tion Set­ting 1
Switch

09 Master

Fixed
Allocation
Setting 2
Switch

10 Master

Fixed
Alloca­tion Set­ting 3
Switch

OFF→ONUser Enables master communications. (The Unit automati-

OFF Unit Returns to OFF at the start of master communications.
OFF→ONUser Stops master communications. (The Unit automatically

OFF Unit Returns to OFF after master communications stop.
OFF→ONUser Allocates the following words for use when the scan list

OFF Unit Returns to OFF after the fixed allocation areas are set.
OFF→ONUser Functions the same as bit 08 to allocate the following

OFF Unit Returns to OFF after the fixed allocation areas are set.
OFF→ONUser Functions the same as bit 08 to allocate the following

OFF Unit Returns to OFF after the fixed allocation areas are set.

Unit operation Operation condi-

cally restarts.)
Once enabled, the Unit will function as a Master

regardless of whether the power is turned OFF and
back ON again until the Master Stop Switch (word n, bit

07) is turned ON.
Note 1. Master communications are enabled in the

default settings.

2. If this bit is turned ON with master communi­cations enabled, a Unit status error will occur
and a C2 error will be displayed on the 7­segment display. The 7-segment display will
go out automatically after 30 seconds.

restarts.)
Turn this switch ON if the Unit will be used only for

slave communications.

is disabled (default setting). (The Unit automatically
restarts.)

• OUT area: CIO 3200 to CIO 3263 (1 word/1 node ad­dress)

• IN area: CIO 3300 to CIO 3363 (1 word/1 node ad­dress)

Note The I/O words used with the scan list disabled

are also used with the scan list enabled. (Use
the Scan List Enable Switch (word n, bit 00).)

words. (The Unit automatically restarts.)

• OUT area: CIO 3400 to CIO 3463 (1 word/1 node ad­dress)

• IN area: CIO 3500 to CIO 3563 (1 word/1 node ad­dress)

words. (The Unit automatically restarts.)

• OUT area: CIO 3600 to CIO 3663 (1 word/1 node ad­dress)

• IN area: CIO 3700 to CIO 3763 (1 word/1 node ad­dress)

CPU

Unit
oper­ating

mode

Pro­gram
mode

Pro­gram
mode

Pro­gram
mode

Pro­gram
mode

Pro­gram
mode

tions

Mas-

ter

func-

tion

Dis­abled

En­abled

En­abled

En­abled

En­abled

Default
setting

Scan

list

sta-

tus

--- Master
enabled

---

Dis-

Master

abled

Fixed
Alloca­tion
Setting
1
enabled

Dis­abled

Dis­abled

67

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

trolled

by

11 Master

User-set
Alloca­tions
Switch

12 Tempo-

rary Set­ting
Switch for
Commu­nications
Cycle
Time

13 Commu-

nications
Cycle
Time Set­ting
Switch

OFF→ONUser Reads setup data from the Master User Allocations

OFF Unit Returns to OFF when the scan list is registered and the

OFF→ONUser Reads setup data from the Communications Cycle

OFF Unit Returns to OFF after the communications cycle time is

OFF→ONUser Reads setup data from the communications cycle time

OFF Unit Returns to OFF after the communications cycle time is

Unit operation Operation condi-

Setup Table (words m+1 to m+7) in the DM Area and
registers the scan list. (The Unit automatically restarts.)

Once registered, the Unit will operate with master user­set allocations regardless of whether the power is
turned OFF and back ON again until the scan list is
cleared.

Unit starts operating with the scan list enabled.
Note If there is a setting error, an error code will be

stored in the Master User Allocations Setup
Table (words m+1 to m+7) and the Scan List
Register/Clear Failed Flag (word n+12, bit 11)
will turn ON.

Time Setup Table (word m) in the DM Area and tempo­rarily changes the cycle time. The settings are not
stored in non-volatile memory in the Unit and will not
be valid again if the power is turned OFF and back ON
or if the Unit is restarted.

Use this to temporarily extend the communications
cycle time with a ladder program to place priority on
message communication.

Note The cycle time can be changed in any CPU Unit

operating mode.

changed.
The Communications Cycle Time Reference Table

(words m+15 to m+18) will be cleared before the switch
returns to OFF if the change was successfully com­pleted.

Note The Communications Cycle Time Setting Failed

Flag (word n+12, bit 12) turns ON if there is a
setting error, and the Communications Cycle
Time Reference Table (words m+15 to m +18)
will not be cleared.

setup table (word m) in the DM area to change the
communications cycle time, and to store the communi­cations cycle time in non-volatile memory in the Unit.
The settings will therefore be valid again if the power is
turned OFF and back ON or if the Unit is restarted.

changed.
The Communications Cycle Time Reference Table

(words m+15 to m+18) will clear before the switch
returns to OFF if the change was successfully com­pleted.

Note The Communications Cycle Time Setting Failed

Flag (word n+12 bit 12) will turn ON if there is a
setting error. In that case, the Communications
Cycle Time Reference Table (words m+15 to m
+18) will not be cleared.

Default

tions

CPU

Mas-

Unit
oper­ating

mode

Pro­gram
mode

--- --- --- None

Pro­gram
mode

ter

func-

tion

En-

--- Master

abled

--- --- None

setting

Scan

list

sta-

tus

Fixed
Alloca­tion
Setting
1
enabled

68

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

trolled

by

14 Commu-

nications
Cycle
Time
Refer­ence
Ta bl e
Clear
Switch

OFF→ONUser Clears data in the Communications Cycle Time Refer-

OFF Unit Returns to OFF after the data in the Communications

ence Table (words m+15 to m+18). The data that is
cleared will be updated with new data.

Cycle Time Reference Table (words m+15 to m+18)
has been cleared.

Unit operation Operation condi-

3-2-2 Software Switches 2 (Word n+1)

All switches are turned ON by the user. The Unit automatically turns them
OFF after the function is executed. Once a function is set by turning a switch
ON (except for the switches listed below), it is saved regardless of whether the
power is turned OFF and back ON again.

• Slave COS Send Switch (bit 12)

• Unit Setup File Restore Switch (bit 14)

• Unit Setup File Backup Switch (bit 15)

If multiple bits are turned ON simultaneously, the requests will generate errors
but they will not alter Unit operation. The corresponding error bits in the follow­ing words will turn ON if a request made by a software switch ends in an error.

• Slave Status 1

Default

tions

CPU

Mas-

Unit
oper­ating

mode

--- --- --- None

Scan

ter

func-

tion

setting

list

sta-

tus

Word n+1 [n = CIO 1,500 + (25 x unit number)]

Bit Name Status Con-

trolled by

00
to
05

Reserved
by system

--- --- --- --- --- ---

Unit operation Operation

conditions

CPU

Slave

Unit

func­oper­ating

mode

tion

Default
setting

69

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

06 Slave

Enable
Switch

07 Slave Stop

Switch

08 Slave

Fixed Allo­cation Set­ting 1
Switch

09 Slave

Fixed Allo­cation Set­ting 2
Switch

OFF→ONUser Enables slave communications. (The Unit automatically

OFF Unit Returns to OFF at the start of slave communications.
OFF→ONUser Stops slave communications. (The Unit automatically

OFF Unit Returns to OFF after slave communications stop.
OFF→ONUser Allocates the following words to the slave.

OFF Unit Returns to OFF after fixed allocations have been set.
OFF→ONUser Allocates the following words to the slave.

OFF Unit Returns to OFF after fixed allocations have been set.

trolled by

Unit operation Operation

restarts.)
To use fixed allocations, turn this switch ON after turning

ON a Slave Fixed Allocation Setting Switch (word n+1,
bits 08 to 10). To used user-set allocations, turn this
switch ON after turning ON the User Setting Switch
(word n+1, bit 11).

Once enabled, the Unit will function as a slave regard­less of whether the power is turned OFF and back ON
again until the Slave Stop Switch (word n+1, bit 07) is
turned ON.

Note 1. Slave communications are enabled in the

default setting.

2. If this bit is turned ON with Slave enabled, a
Unit status error will occur and a C2 error will
be displayed on the 7-segment display. The
7-segment display will go out automatically
after 30 seconds.

restarts.) Turn this switch ON if the Unit will be used only
for master communications.

• OUT 1 area (input to the CPU Unit):
CIO 3370 (1 word allocated)

• IN 1 area (output from the CPU Unit):
CIO 3270 (1 word allocated)

• OUT 2 area: Not used

• IN 2 area: Not used

Note 1. Slave communications must be disabled

before this switch is turned ON. After the
switch is turned ON, turn the Slave Enable
Switch (word n+1, bit 06) ON to enable Fixed
Allocation Setting 1.

2. This is the default setting for the Unit.

3. The words allocated by this switch are used
as the I/O area for the slave. (Use the Slave
Enable Switch (word n+1, bit 06).)

• OUT 1 area (input to the CPU Unit):
CIO 3570 (1 word allocated)

• IN 1 area (output from the CPU Unit):
CIO 3470 (1 word allocated)

• OUT 2 area: Not used

• IN 2 area: Not used

Note Same as notes 1 to 3 for bit 08.

conditions

CPU

Unit

oper-

ating

mode

Pro­gram
mode

Pro­gram
mode

Pro­gram
mode

Pro­gram
mode

Dis­abled

Dis­abled

En­abled

Dis­abled

Default
setting

Slave
func-

tion

Slave
disabled

Slave
disabled

Slave
Fixed
Alloca­tion set­ting 1
enabled

70

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

10 Slave

Fixed Allo­cation set­ting 3
switch

11 Slave User

Alloca­tions
Switch

12 Slave

COS Send
Switch

13 Reserved

by system

OFF→ONUser Allocates the following words to the slave.

OFF Unit Returns to OFF after fixed allocations have been set.
OFF→ONUser Reads setup data from the Slave User Allocations Setup

OFF Unit Returns to OFF at the start of operation for slave user-

OFF→ONUser Sends COS IN data to the master. --- --- None

OFF Unit Returns to OFF after transmission is completed regard-

--- --- --- --- --- ---

trolled by

Unit operation Operation

• OUT 1 area (input to the CPU Unit):
CIO 3770 (1 word allocated)

• IN 1 area (output from the CPU Unit):
CIO 3670 (1 word allocated)

• OUT 2 area: Not used

• IN 2 area: Not used

Note Same as notes 1 to 3 for bit 08.

Table in the DM Area and registers slave user-set alloca­tions.

Once registered, the Unit will operate with slave user-set
allocations regardless of whether the power is turned
OFF and back ON again until slave communications are
disabled (i.e., until Slave Disable Switch (word n+1, bit

07) is turned ON).

Slave communications must be disabled before this
switch is turned ON.

Note After the switch is turned ON, turn the Slave

Enable Switch (word n+1, bit 06) ON to enable
user-set allocations.

set allocations.
Note The Slave Function Enable/Stop Failed Flag

(word n+14, bit 08) in Unit Status 2 will turn ON if
there is a setting error.

less of whether it was completed normally or in error.

conditions

CPU

Unit
oper­ating

mode

Pro­gram
mode

Pro­gram
mode

Dis­abled

Dis­abled

Default
setting

Slave

func-

tion

Slave
Fixed
Alloca­tion set­ting 1
enabled

Slave
Fixed
Alloca­tion set­ting 1
enabled

71

Allocated CIO Area Words Section 3-2

Bit Name Status Con-

14 Unit Setup

File
Restore
Switch

15 Unit Setup

File
Backup
Switch

OFF→ONUser Reads Unit settings (scan list, communica-

OFF Unit Returns to OFF when the Unit restarts if

OFF→ONUser Writes user settings (scan list, communica-

OFF Unit Returns to OFF after the data is written to

trolled by

Unit operation Operation conditions Default

tions cycle time settings, etc.) from the file
on a Memory Card in the CPU Unit and
writes the data as Unit settings. See7-2
Memory Card Backup Functions for details.
(The Unit automatically restarts.)

Note After the file data is read, the Unit

automatically restarts with the new
data.

the data is read properly.
Note The File Read/Write Error Flag

(word n+11, bit 08) in Unit Status 2
will turn ON if there is a setup data
error or a file read error.

tions cycle time settings, etc.) as a file on
the Memory Card in the CPU Unit. See 7-2
Memory Card Backup Functions for details.

Note Files can only be backed up with

the scan list enabled.

a file.
Note The File Read/Write Error Flag

(word n+11, bit 08) in Unit Status 2
will turn ON if data failed to be writ­ten to file.

CPU

Mas-

Unit

oper-

func-

ating

mode

Pro­gram
mode

--- ---

--- --- --- None

ter

tion

Scan

list

sta-

tus

En-

abled

(See

note

1.)

Slave

func-

--- None

setting

tion

Note 1. When the Master function is enabled, the Unit Setup File cannot be backed

up unless the scan list is enabled.

3-2-3 Master COS Send Switches (Words n+2 to n+5)

One Master COS Send Switch is allocated to each slave node address. If the
switch for a slave is turned ON, then COS output data will be sent to that
slave.

Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit09 Bit08 Bit07 Bit06 Bit05 Bit04 Bit03 Bit02 Bit01 Bit00

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

n+2

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

n+3

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

n+4

63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48

n+5

More than one of these switches may be turned ON at the same time. The
switches will return to OFF starting at the switches for the slaves to which
COS data has been sent.

If a send error occurs, the corresponding bit will turn ON in Slave Detailed
Status.

72

Allocated CIO Area Words Section 3-2

3-2-4 Disconnect/Connect Switches (Words n+6 to n+9)

One Disconnect/Connect Switch is allocated to each slave node address. If
the switch for a slave is turned ON, then remote I/O communications to that
slave will be temporarily stopped (i.e., it is disconnected from the network). A
communications error will occur at the end for any slave has been discon­nected if the corresponding switch is turned ON during communications.

These switches are used primarily to replace slaves or to reserve a place for a
slave that will be added (when a Unit is registered in the scan list but not yet
connected). A communications error and verification error for the slave that
has been disconnected will not be generated at the master as long as the cor­responding switch is ON.

Note These switches do not add or remove slaves from the registered scan list.

Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit09 Bit08 Bit07 Bit06 Bit05 Bit04 Bit03 Bit02 Bit01 Bit00

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

n+6

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

n+7

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

n+8

63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48

n+9

Remote I/O communications will restart if a user turns OFF a bit that is ON.
More than one of these switches may be turned ON at the same time. If the

switch for a slave that is not using remote I/O communications is turned ON, it
will be ignored.

A Unit that has been disconnected can still perform message communica­tions.

Turning ON this bit does not effect the communications cycle time (except that
it increases blank time in the communications cycle).

Note All Disconnect/Connect Switches are cleared and return to OFF

when the power is turned OFF. If required, write the ladder program
to turn them back ON when the power is turned ON.

Bit Name Status Controlled

– Disconnect/

Connect
Switch

ON User Stops remote I/O communications for the corresponding Slave.

OFF User Starts remote I/O communications for the corresponding Slave.

Unit operation

by

73

Allocated CIO Area Words Section 3-2

3-2-5 Unit Status 1 (Word n+10)

Word n+10 [n = CIO 1,500 + (25 x unit number)]

Bit Name Status Controlled

by

00 Unit Error

Flag

01 Master

Function
Error Flag

02 Reserved by

system

03 Slave Func-

tion Error
Flag

04 Unit Mem-

ory Error
Flag

05 Bus Off Flag ON Unit Indicates that a Bus OFF error (communications were stopped by multiple

06 Node

Address
Duplicated
Flag

ON Unit Displays DeviceNet Unit operating errors.

This bit turns ON if any bit from 01 to 15 in Unit Status 1 turns ON. (OR of
bits 01 to 15)

Usage example: When writing the ladder program for remote I/O commu­nications, set a NC input conditions for this bit to control Slave I/O pro­cessing.

OFF Unit Indicates that the an error has not occurred or turns OFF when the error

has cleared.

ON Unit Indicates that a master error has occurred. (Master Status 1 (See word

n+12.))
The master errors are as follows:

• Verification Error Flag (word n+12, bit 00)

• Structure Error Flag (word n+12, bit 01)

• Remote I/O Communications Error Flag (word n+12, bit 02)

• Invalid Scan List Data Flag (word n+12, bit 04)

• Remote I/O Refresh Error Flag (word n+12, bit 05)

OFF Unit Indicates that the error has not occurred or turns OFF when the error has

been cleared.

--- --- ---

ON Unit Indicates that a slave error has occurred. (Slave Status 1 (See word

n+14.))
The slave errors are as follows:

• Remote I/O Communications Error Flag for OUT 1/ IN 1 (word n+14, bit

02)

• Remote I/O Communications Error Flag for OUT 2/ IN 2 (word n+14, bit

03)

• Invalid Setup Data Flag (word n+14, bit 04)

• Remote I/O Refresh Error Flag (word n+14, bit 05)

OFF Unit Indicates that the error has not occurred or turns OFF when the error has

been cleared.

ON Unit Indicates an error in internal memory where the error history is stored.

(The error occurs when the Unit starts up or when the error history is writ­ten.)

OFF Unit Indicates that the error has not occurred. Once this error has occurred, the

bit will remain ON and will not return to OFF.

transmissions) has occurred. When a Bus OFF occurs, the Unit goes
offline and all communications stop (remote I/O communications stop,
slave operation stop, and message communications are disabled).

OFF Unit Indicates that the error has not occurred. Once this error has occurred, the

bit will remain ON and will not return to OFF.

ON Unit Indicates a duplicate node address check error when the Unit starts up.

The Unit goes offline and all communications stop. (Remote I/O communi­cations stop, slave operation stop, and message communications are dis­abled.)

OFF Unit Indicates that the error has not occurred. Once this error has occurred, the

bit will remain ON and will not return to OFF.

Unit operation

74

Allocated CIO Area Words Section 3-2

Bit Name Status Controlled

07 Network

Power Error
Flag

08 Send Time-

out Flag

Reserved by

09

system

to
11

12 Routing

Table Error
Flag

13 Invalid Mes-

sage Timer
List Flag

Reserved by

14

system

to
15

ON Unit Indicates that there is no power from the network power supply.

OFF Unit Indicates that the error has not occurred or turns OFF when the network

ON Unit Indicates that a send timeout occurred due to one of the following factors:

OFF Unit Returns to OFF at the start of communications even with just one slave

--- --- ---

ON Unit Incorrect data in the routing tables set in the CPU Unit. Refer to 1-6-3 Cre-

OFF Unit Indicates that the error has not occurred if a routing table has been set.

ON Unit Indicates that the data in the message monitoring timer list is not correct.
OFF Unit Indicates that the data in the message monitoring timer list is correct.

--- --- ---

by

Unit operation

Note Remote I/O communications stop if DIP switch pin 3 (remote I/O

communications stop/continue setting for a communications error)
on the front panel is ON (stop).

power supply has restarted.

• No slaves present.

• Mismatched baud rate settings.
Note Remote I/O communications stop if DIP switch pin 3 (remote I/O

communications stop/continue setting for a communications error)
on the front panel is ON (stop).

present.

ating Routing Tables.

Turns OFF if the Configurator registers a message monitoring timer list
when the error occurs.

The message monitoring timer list shows the time spent waiting for
responses in message communications. It is set from the Configurator.

3-2-6 Unit Status 2 (Word n+11)

Word n+11 [n = CIO 1,500 + (25 x unit number)]

Bit Name Status Controlled

by

00 Online Flag ON Unit Indicates that the Unit is online. The Unit normally goes online automati-

cally.
Note When executing message communications instructions (SEND/

RECV/CMND) from the ladder program, use an AND of input con­ditions for the Network Communications Enabled Flag in the CPU
Unit (A20200 to A20207) and this bit.

OFF Unit Indicates that the Unit is offline. A Unit will go offline under the following

conditions:

• Operation is stopped by the hardware/software check at startup.

• An error occurred in the duplicate node address check (word n+10, bit

06).

• A Bus OFF error has occurred (word n+10, bit 05).

Unit operation

75

Allocated CIO Area Words Section 3-2

Bit Name Status Controlled

01 Remote I/O

Communica­tions Flag

02 Reserved by

system

03 Master

Function
Enabled
Flag

04 Scan List

Disabled
Flag

05 Reserved by

system

06 Automatic

Slave
Connection
Flag

07 Slave Func-

tion Enabled
Flag

08 File Read/

Write Error
Flag

09

Reserved by

to

system

14
15 Error His-

tory Flag

ON Unit Indicates that remote I/O communications are being performed for the

OFF Unit Indicates remote I/O communications have stopped. This bit turns OFF in

--- --- ---

ON Unit Indicates that master communications are enabled (Unit is operating as a

OFF Unit Indicates that master communications are disabled.

ON Unit Indicates that the Unit is operating with the scan list disabled (default set-

OFF Unit Indicates that the Unit is operating with the scan list enabled.

--- --- ---

ON Unit Indicates that the connection type was automatically set in the slave scan

OFF Unit Indicates that the connection type was set from the Configurator in the

ON Unit Indicates that slave communications are enabled.

OFF Unit Indicates that slave communications are disabled (default setting).

ON Unit Indicates that an error has occurred when user setup data is read from a

OFF Unit Indicates that the error has not occurred. Turns OFF when the Unit has

--- --- ---

ON Unit Indicates that an error history has been registered. Turns ON at the first

OFF Unit Indicates that no errors have been registered in the error history. Turns

by

Unit operation

master function. Normally, the Unit will perform remote I/O communica­tions automatically.

Note This bit only indicates the start of remote I/O communications, and

does not indicate whether data has actually been exchanged with
slaves. Actual data exchange between one or more slaves is moni­tored from I/O Data Communications Flag (word n+12 bit 15).
Therefore use I/O Data Communications Flag rather than this bit
as the input condition in I/O processing for slaves from the ladder
program.

order to stop communications under the following conditions:

• No slaves are registered in the scan list.

• Invalid Setup Data Flag (word n+12, bit 04)

• A remote I/O communications error or sending error (network power er­ror or send timeout error) occurred with DIP switch pin 3 (remote I/O
communications stop/continue setting for communications errors) on the
front panel turned ON.

• The remote I/O Communications Stop Switch (word n, bit 04) is ON.

Master) (default setting).

ting).

list.
This flag is valid only with slave communications enabled.

slave scan list.
Note The type of connection in slave communications cannot be speci-

fied without the Configurator. If it is not set from the Configurator, it
will be set automatically.

Memory Card in the CPU Unit or when data is written as a file to a Mem­ory Card.

successfully completed the operation.

error history for the Unit.

OFF when the Unit receives an error history clear request.

76

Allocated CIO Area Words Section 3-2

3-2-7 Master Status 1 (Word n+12)

Word n+12 [n = CIO 1,500 + (25 x unit number)]

Bit Name Status Controlled

by

00 Verification

Error Flag

01 Structure

Error Flag

02 Remote I/O

Communica­tions Error
Flag

03 Reserved by

system

04 Invalid Scan

List Data
Flag

05 Remote I/O

Refresh
Error Flag

06

Reserved by

to

system

07
08 Master

Function
Enable/
Disable
Failed Flag

09 User

Allocation
Area Setting
Failed Flag

ON Unit Indicates that the data in the slave registered in the scan list is different

OFF Unit Indicates that a verification error has not occurred or turns OFF when a

ON Unit Indicates that I/O allocations cannot be made with the scan list disabled.
OFF Unit Indicates that a structure error has not occurred or turns OFF when a

ON Unit Indicates that a remote I/O communications timeout has occurred during

OFF Unit Indicates that a remote I/O communications error has not occurred or

--- --- ---

ON Unit Indicates that there is incorrect data in the scan list (mismatched check-

OFF Unit Indicates that the scan list data is correct.

ON Unit Indicates that the I/O memory in the CPU Unit that is to be refreshed is not

OFF Unit Indicates that no master I/O refresh errors have occurred.

--- --- ---

ON Unit Indicates that an error has occurred in one of the following operations:

OFF Unit Indicates that the error has not occurred. The bit turns OFF when the

ON Unit Indicates that an error has occurred in one of the following operations:

OFF Unit Indicates that the error has not occurred. The bit turns OFF when the

from the data from the actual slave. It occurs with the scan list enabled.

verification error is cleared.

structure error is cleared.

remote I/O communications with slaves.
Remote I/O communications will stop if DIP switch pin 3 (remote I/O com-

munications stop/continue setting for communications errors) on the front
panel is ON (stop).

This error occurs with the scan list enabled or disabled.

turns OFF when a remote I/O communications error is cleared.

sum). Remote I/O communications in the Unit will stop. (Slave operations
and message communications will continue.)

Turns OFF when an incorrect scan list data error occurs and then the cor­rect scan list is registered.

present during I/O refreshing for the master. It occurs in several situations,
such as when an I/O area is allocated in an EM bank that is not present.

• Master enable (word n, bit 06)

• Master stop (word n, bit 07)
Once this bit turns ON, it will remain ON until the operation is successfully

completed.

operation is successfully completed.

• Master user-set allocations user setting (word n, bit 11)
Once this bit turns ON, it will remain ON until the operation is successfully

completed.
Details on the master user-set allocation results are output to the Master

User Allocations Setup Table.

operation is successfully completed.

Unit operation

77

Allocated CIO Area Words Section 3-2

Bit Name Status Controlled

10 Fixed

Allocation
Area Setting
Failed Flag

11 Scan List

Register/
Clear Failed
Flag

12 Communica-

tions Cycle
Time
Setting
Failed Flag

Reserved by

13

system

to
14

15 I/O Data

Communica­tions Flag

ON Unit Indicates that an error has occurred in one of the following operations:

OFF Unit Indicates that the error has not occurred. The bit turns OFF when the

ON Unit Indicates that an error has occurred in one of the following operations:

OFF Unit Indicates that the error has not occurred. The bit turns OFF when the

ON Unit Indicates that an error has occurred when setting the communications

OFF Unit Indicates that the error has not occurred. The bit turns OFF when the

--- --- ---

ON Unit Indicates that at least one slave is performing remote I/O communications.

OFF Unit Indicates that remote I/O communications are not being conducted with

by

Unit operation

• Fixed Allocation Setting 1 (word n, bit 08)

• Fixed Allocation Setting 2 (word n, bit 09)

• Fixed Allocation Setting 3 (word n, bit 10)

Once this bit turns ON, it will remain ON until the operation is successfully
completed.

operation is successfully completed.

• Scan list enabled (word n, bit 00)

• Scan list clear (word n, bit 01)

Once this bit turns ON, it will remain ON until the operation is successfully
completed.

operation is successfully completed.

cycle time (word n, bit 12).
Once this bit turns ON, it will remain ON until the next communications

cycle time is set.

operation is successfully completed.

Usage example: When writing the ladder program for remote I/O commu­nications, set a NO input condition for this bit to control slave I/O process­ing.

any slaves.

3-2-8 Master Status 2 (Word n+13)

The leftmost eight bits indicate the status of master I/O allocations.

Word

Bit 15 Bit 08 Bit 07 Bit 00

n+13

Master I/O Allocation Status

Master I/O Allocation Status

Code Details

00 Hex Unit starting up
01 Hex Fixed allocation status 1 (with the scan list disabled)
02 Hex Fixed allocation status 2 (with the scan list disabled)
03 Hex Fixed allocation status 3 (with the scan list disabled)
11 Hex Fixed allocation status 1
12 Hex Fixed allocation status 2
13 Hex Fixed allocation status 3
20 Hex User-set allocations in the allocated DM Area words
30 Hex User-set allocations from the Configurator
80 Hex Master function disabled

Reserved by system

78