Omron DEVICENET OPERATION MANUAL

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Cat. No. W267-E1-11

DeviceNet

OPERATION MANUAL

DeviceNet

Operation Manual

Revised April 2008

Notice:

r f

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

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

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

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

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

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

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

moderate injury, or property damage.

OMRON Product References

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

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

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

Visual Aids

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

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

tion of the product.

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

Trademarks and Copyrights

COMBICON is a registered trademark of PHOENIX CONTACT. DeviceNet is a registered trademark of the Open DeviceNet Vendor Association, Inc. PowerTap is a registered trademark of the Allen-Bradley Company, Inc.

 OMRON, 1996

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

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

TABLE OF CONTENTS

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

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

2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

SECTION 1

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

1-1 DeviceNet Network Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 DeviceNet-compatible Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-3 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-4 Basic Operating Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

SECTION 2

Network Configuration and Wiring . . . . . . . . . . . . . . . . . . . 21

2-1 Network Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-2 Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2-3 Cables, Connectors, and Related Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2-4 Wiring Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

2-5 Minimizing Noise in the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

2-6 Operational Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

SECTION 3

Communications Power Supply Methods. . . . . . . . . . . . . . . 87

3-1 Basic Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

3-2 Flowchart: Determining Power Supply Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

3-3 Locating the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

3-4 Step 1: Evaluating the Configuration with Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

3-5 Step 2: Evaluating the Configuration with Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

3-6 Step 3: Splitting the System into Multiple Power Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . 101

Appendices

A Connectable Device Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

B Dimensions of Connectable Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

C Current Consumption of DeviceNet Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

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About this Manual:

This manual describes the configuration and installation of an OMRON DeviceNet network and includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before attempting to install or operate the DeviceNet network. Be sure to read the precautions provided in

the following section.

The following manuals also cover information related to DeviceNet applications. Use the DeviceNet Operation Manual together with other required manuals.

Manual Contents Cat. No.

DeviceNet Operation Manual (this manual)

DeviceNet CS/CJ Series Units Operation Manual

DeviceNet Masters Operation Manual

DeviceNet DRT1 Series Slaves Operation Manual

DeviceNet DRT2 Series Slaves Operation Manual

DeviceNet Configurator Ver.

2.@ Operation Manual DeviceNet MULTIPLE I/O

TERMINAL Operation Manual

Describes the configuration and construction of a DeviceNet network, including installation procedures and specifications for cables, connectors, and other connection devices, as well as information on functions, operating procedures, and applications.

Describes the models, specifications, functions, operating procedures, and applications of CS-series and CJ-series DeviceNet Master Units.

Describes the models, specifications, functions, operating procedures, and applications of C200HX/HG/HE, CVM1, and CV-series DeviceNet Master Units.

Describes the models, specifications, functions, operating procedures, and applications of DRT1-series Smart Slave Units.

Describes the models, specifications, functions, operating procedures, and applications of DRT2-series Smart Slave Units.

Describes the operating procedures of the DeviceNet Configurator. W382

Describes the models, specifications, functions, operating procedures, and applications of the DeviceNet MULTIPLE I/O TERMINALs.

W267

W380

W379

W347

W404

W348

Precautions provides general precautions for planning, installing, and operating the DeviceNet network and related devices.

Section 1 provides an overview of the DeviceNet network, including features, compatible OMRON DeviceNet devices, communications specifications, and basic operating procedures.

Section 2 explains how to plan the Network configuration and connect the Network’s communications wiring.

Section 3 describes the DeviceNet communications power supply methods and provides a step-bystep procedure to determine the ideal location for the power supply (or power supplies.)

Appendix A provides lists of OMRON’s DeviceNet devices. Appendix B shows the dimensions of the DeviceNet devices. Appendix C shows the current requirements of the DeviceNet devices.

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

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

Read and Understand this Manual

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

Warranty and Limitations of Liability

WARRANTY

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

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

LIMITATIONS OF LIABILITY

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

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

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

Application Considerations

SUITABILITY FOR USE

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

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

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

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

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

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

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

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

PROGRAMMABLE PRODUCTS

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

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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.

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PRECAUTIONS

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

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

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

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Intended Audience 1

1 Intended Audience

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

• Personnel in charge of purchasing FA systems.

• Personnel in charge of designing FA systems.

• Personnel in charge of installing and connecting FA systems.

• Personnel in charge of managing FA systems and facilities.

xvi

General Precautions 2

2 General Precautions

The user must operate the product according to the 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 redundant safety mechanisms.

This manual provides information for installing and operating OMRON DeviceNet products. 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.

xvii

Safety Precautions 3

3 Safety Precautions

!WARNING Never attempt to disassemble any Units while power is being supplied. Doing

so may result in serious electrical shock or electrocution.

!WARNING Make sure that the current or voltage input to the Unit is within the specified

ranges. Using a current or voltage outside of the specified range may result in damage or fire.

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

Controller), including the following items, to ensure safety in the system if an abnormality occurs due to malfunction of the PLC or another external factor affecting the PLC operation. Not doing so may result in serious accidents.

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

2. 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. External safety measures must be provided to ensure safety in the system in case an error or FALS instruction causes all outputs to be turned OFF.

3. The PLC outputs may remain ON or OFF due to fusing or burning of the output relay contacts or destruction of the output transistors. External safety measures must be provided to ensure safety in the system in case the outputs fail and remain ON or OFF.

4. When the 24-V DC output (service power supply to the PLC) is overloaded or short-circuited, the voltage may drop and result in the outputs being turned OFF. External safety measures must be provided to ensure safety in the system in case of a power supply problem that causes outputs to be turned OFF.

!WARNING The PLC’s CPU Unit continues I/O refreshing even when the program is not

being executed (in PROGRAM mode). Before proceeding with any of the following operations, verify that it is safe to do so in case the operation changes the status of output bits allocated to Output Units or the data allocated to Special I/O Units or CPU Bus Units. It is possible for a load connected to an Output Unit, Special I/O Unit, or CPU Bus Unit to operate unexpectedly.

• Using a Programming Device (Support Software in a personal computer) to transfer data to the CPU Unit’s I/O memory area.

• Using a Programming Device to change present values

• Using a Programming Device to force-set or force-reset bits

• Transferring an I/O memory file to the CPU Unit from EM file memory

• Transferring I/O memory from another PLC or host computer in the network

xviii

!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.

Safety Precautions 3

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

gram, PLC Setup, I/O table, or I/O memory in another node. Changing data in another node without confirming safety may cause unexpected operation and result in injury.

xix

Operating Environment Precautions 4

4 Operating Environment Precautions

Install the system properly according to the directions in this manual. Do not operate the control system in the following places.

• Locations subject to direct sunlight.

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

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

• Locations subject to corrosive or flammable gases.

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

• Locations subject to water, oil, or chemicals.

• Locations subject to shock or vibration.

Take appropriate and sufficient countermeasures when installing systems in the following locations:

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

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radioactivity.

• Locations close to power supplies.

Application Precautions 5

5 Application Precautions

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

• Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must be provided in external control circuits (i.e., not in the Programmable Controller).

• Use the power supplies specified in the operation manuals.

• If the system is installed at a site with poor power supply conditions, take appropriate measures to ensure that the power supply remains within the rated voltage and frequency specifications.

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

• Always ground the system to 100 protect against electrical shock.

• Make sure that the Unit is securely mounted, either to the DIN Track or by screws.

• Always turn OFF the communications power supply and the power supplies to the PLC and Slaves before attempting any of the following.

• Mounting or removing a Unit such as an I/O Unit, Power Supply Unit, CPU Unit, Memory Cassette, or Master Unit.

• Connecting or disconnecting Remote I/O Terminal circuits.

• Assembling any devices or racks.

• Setting DIP switches or rotary switches.

• Connecting or wiring cables.

• Connecting or disconnecting connectors.

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

• Make sure that the terminal block screws are tightened to the torque specified in the relevant manuals. Loose screws may result in fire, malfunction, or damage.

• Confirm that no adverse effect will occur in the system before attempting any of the following.

• Changing the operating mode of the PLC (including the operating mode setting when the power is turned ON)

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

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

• Make sure that all the mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in the relevant manuals.

• Make sure that communications connector screws are securely tightened to a torque of 0.5 to 0.6 N·m.

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

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

• Make sure that metal filings do not get inside of the Unit during wiring and installation.

Ω or less when installing the system to

xxi

Application Precautions 5

• Make sure that the polarity of terminals, the wiring of communications paths, the wiring of the power supply, and the voltage for inputs and outputs are correct. If any of these are incorrect, it may result in damage.

• Perform the wiring correctly according to the instructions in this manual.

• Make sure that the connection distances are within specifications.

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

• Make sure that the communications cable connectors and other items with locking devices are properly locked into place.

• Do not drop the Unit or subject it to abnormal vibration or impact, or it may result in damage or malfunctioning.

• Use the special packing box when transporting the Unit. Ensure that the product is handled carefully so that no excessive vibration or impact is applied to the product during transportation.

• Check the user program for proper execution before actually running it with the system.

• Do not pull on the cables or bend them past their natural bending radius.

• Before connecting communications cables, be sure to first turn OFF the communications power supply, the power supply to the PLC, and the power supply to all Slaves.

• Use only the specified DeviceNet cables as communications cables.

• Observe the following precautions when wiring the communications cables.

• Wire the cables separately from the power lines or high-tension lines.

• Do not bend the cables excessively.

• Do not pull on the cables excessively.

• Do not place objects on top of the cables.

• Route cables inside ducts.

• Before touching a Unit, touch a grounded metallic object in order to discharge any static build-up.

• Always enable the scan list before operation.

• Before clearing the scan list for a Unit set for automatic allocation of remote I/O, make sure that it will not cause any problems for the I/O area to be changed to fixed allocations.

• When adding a new node to the network, check that the new node’s baud rate is the same as the baud rate set on the other nodes.

• When a CPU Unit or Special I/O Unit is being replaced, always transfer any required data, such as DM and HR area settings and parameters, before restarting the system.

• Follow the specifications for the communications distances and the number of connected Units.

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SECTION 1

Introduction

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

1-1 DeviceNet Network Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Reduced Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 Multi-vendor Networks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-3 Remote I/O Communications and Message Communications. . . . . 3

1-1-4 Device Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-2 DeviceNet-compatible Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-2-1 Master Unit Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-2-2 DeviceNet Functions of OMRON Master Units. . . . . . . . . . . . . . . . 4

1-2-3 Types of Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-2-4 DeviceNet Configurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-3 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-4 Basic Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1-4-1 DeviceNet Network Configuration and Wiring . . . . . . . . . . . . . . . . 18

1-4-2 Network Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

DeviceNet Network Features Section 1-1

T-b

1-1 DeviceNet Network Features

DeviceNet is an open field network that can easily connect a variety of control devices such as PLCs, personal computers, sensors, and actuators.

The DeviceNet network not only reduces wiring and maintenance costs because it requires less wiring, it also allows DeviceNet-compatible devices from different manufacturers to be connected. There is a wide selection of DeviceNet-compatible devices available, so a more economical system can be constructed.

1-1-1 Reduced Wiring

Use DeviceNet cables to wire connections such as multi-drop trunk lines and T-branch lines. These connection methods can help reduce onsite wiring costs and maintenance costs.

ranch

Multi-drop trunk line T-branch multi-drop branch

Trunk line

Connector

Trunk line

1-1-2 Multi-vendor Networks

The DeviceNet communications specifications are open and standardized, so a DeviceNet-compatible device from any manufacturer can be connected. DeviceNet can be used in a variety of field-level applications by combining devices such as valves and sensors.

OMRON Master Unit Another Company’s

Branch lines

DeviceNet

OMRON Slave Units

Branch line

Master Unit

Branch line

Another Company’s Slave Units

DeviceNet Network Features Section 1-1

1-1-3 Remote I/O Communications and Message Communications

DeviceNet supports message communications as well as remote I/O communications. Message communications can be used to make device settings and monitor operation.

OMRON Master Unit

Message communications

Slaves

Remote I/O communications

OMRON Master Unit

DeviceNet

1-1-4 Device Profiles

Since device profiles are defined in DeviceNet, devices are compatible and replaceable even in a multi-vendor environment.

It is possible to set each device's parameters and monitor operation easily from the Configurator based on the device's profile data.

OMRON Master Unit

Limit switch

Company A Photoelectric Sensor

Compatibility

Company B Photoelectric Sensor

Configurator

DeviceNet-compatible Devices Section 1-2

1-2 DeviceNet-compatible Devices

1-2-1 Master Unit Models

Applicable PLC Master Unit model

number

CS Series CS1W-DRM21(-V1) CPU Rack or Expansion I/O CJ Series CJ1W-DRM21

CVM1, CV Series CVM1-DRM21-V1 CPU or Expansion CPU

CS Series C200HW-DRM21-V1 CPU Rack or Expansion I/O C200HZ/HX/HG/HE 10 or 16 C200HS 10

Mounting position Master/Slave

Rack (Classified as CPU Bus Units)

Rack (Classified as Special I/O Units)

functions

Master and Slave functions

Master function only

Max. number of Units

With

Configurator

16 1

1-2-2 DeviceNet Functions of OMRON Master Units

Remote I/O Master Function

DeviceNet Master Unit

CPU Unit

Remote I/O communications

DeviceNet

Without

Configurator

Item Master Model Without Configurator With Configurator

Max. No. of Slave nodes per Master

Max. No. of control points per Master

Slaves

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

CVM1, CV Series CVM2-DRM21-V1 2,048 pts (64 input/ 64

CS Series, C200HX/ HG/HE

C200HS 1,024 pts (32 input/32

C200HW-DRM21-V1 50 nodes 63 nodes

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

output words)

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

output words)

4 blocks)

6,400 (100 words x 4

blocks

Without messages:

4,800 pts

With messages:

1,600 pts

1,280

DeviceNet-compatible Devices Section 1-2

Item Master Model Without Configurator With Configurator

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

Remote I/O allocation areas

Remote I/O Slave Function

CS Series CS1W-DRM21(-V1) 100 input words x 2/100 output words x 1 CJ Series CJ1W-DRM21 CVM1, CV Series CVM1-DRM21-V1 32 input/32 output words CS Series, C200HX/

C200HW-DRM21-V1

HG/HE C200HS CS Series CS1W-DRM21(-V1) CS/CJ DeviceNet words CJ Series CJ1W-DRM21

in CIO Area, and userallocated words in CIO

User-allocated words in

CIO Area, DM Area, and

other areas. Area, DM Area, and other areas.

CVM1, CV Series CVM1-DRM21-V1 DeviceNet Area (includCS Series, C200HX/

C200HW-DRM21-V1

ing dedicated words/ bits)

HG/HE

User-allocated words in

CIO Area, DM Area, and

other areas.

C200HS

DeviceNet Master Unit

CPU Unit

IN area OUT area

Item CPU Unit to which

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

CS-series CPU Unit

CS or CJ Series DeviceNet Unit (Slave function) I/O Link Unit (Slave)

Slaves

Unit Model Without the

a Slave is mounted

Configurator

CS Series CS1W-DRM21(-V1) 32 pts (1 input/ 1 output CJ Series CJ1W-DRM21

CS Series, C200HX/

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

word) or 3,200 pts (100 input/100 output words)

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, C200HX/

C200HW-DRM21 CIO, DM, EM, AR, LR, T/C

HG/HE CQM1H

CQM1-DRT21 CIO

CQM1 Series

IN area OUT area

With the Configurator

4,800 pts (100 input

words x 2/100 output

words x 1)

DeviceNet-compatible Devices Section 1-2

Message Communications Function

[ CMND ... ]

Master

Special Slave

Master

Item Master Unit model Send Receive FINS

Communications Instructions

CS Series CS1W-DRM21(-V1) SEND(192) RECV(193) CMND(194) CJ Series CJ1W-DRM21 SEND(192) RECV(193) CMND(194) CVM1, CV Series DVM1-DRM21-V1 SEND(192) RECV(193) CMND(194) CS Series,

C200HW-DRM21-V1 None None IOWR

C200HX/HG/HE C200HS ---

Item Master model Model Capacity

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

CS Series CS1W-DRM21(-V1) 63 nodes CJ Series CJ1W-DRM21 CVM1, CV Series CVM1-DRM21-V1 8 nodes CS Series,

C200HW-DRM21-V1 8 nodes

C200HX/HG/HE C200HS Not supported

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

CS Series CS1W-DRM21(-V1) 63 nodes CJ Series CJ1W-DRM21 CVM1, CV Series CVM1-DRM21-V1 63 nodes CS Series, C200HX/

C200HW-DRM21-V1 63 nodes

HG/HE C200HS Not supported

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

CJ Series CJ1W-DRM21

RECV(193): 269 words CMND(194): 542 bytes (starting

with command code)

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

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

(starting with command code)

CS Series, C200HX/HG/HE

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

with command code)

commands

DeviceNet-compatible Devices Section 1-2

1-2-3 Types of Slaves

The following classifications are used for DeviceNet Slaves. For more details on the General-purpose Slaves, Environment-resistive

Slaves, and Special Slaves, refer to the DeviceNet DRT1 Series Slaves Oper-

ation Manual (W347) for DRT1-series Slaves and the DeviceNet DRT2 Series Slaves Operation Manual (W404) for DRT2-series Slaves.

Refer to the DeviceNet MULTIPLE I/O TERMINAL Operation Manual (W348) for more details on the MULTIPLE I/O TERMINAL Slaves.

General-purpose Slaves Slaves with I/O functions for 32 or fewer inputs and 32 or fewer outputs.

Environment-resistive Slaves

Slave with I/O functions for I/O that uses a round, waterproof connector connected to a communications cable.

Special Slaves Slaves with more than 32 inputs or 32 outputs or Slaves with functions other

than I/O.

MULTIPLE I/O TERMINALs These are high-density I/O Block Slaves.

1-2-3-1 DRT1-series Slaves

General-purpose Slaves

Name Appearance I/O points Model number Communi-

Remote I/O Ter mi nal s wi th Tr an s i st o rs

Remote I/O Ter mi nal s wi th Transistors and 3-tier Terminal Block

8 input points (NPN) DRT1-ID08 Normal 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) DRT1-OD16 16 output points (PNP) DRT1-OD16-1 8 input points+8 output

points (NPN) 16 input points (NPN) DRT1-ID16T Simple wiring (not neces16 input points (PNP) DRT1-ID16T-1 16 input points (NPN) DRT1-ID16TA 16 input points (PNP) DRT1-ID16TA-1 16 output points (NPN) DRT1-OD16T 16 output points (PNP) DRT1-OD16T-1 16 output points (NPN) DRT1-OD16TA 16 output points (PNP) DRT1-OD16TA-1 8 input points+8 output

points (NPN) 8 input points+8 output

points (PNP) 8 input points+8 output

points (NPN) 8 input points+8 output

points (PNP)

DRT1-MD16

DRT1-MD16T

DRT1-MD16T-1

DRT1-MD16TA

DRT1-MD16TA-1

square connectors

cations

cable

---

sary 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).

Remarks

DeviceNet-compatible Devices Section 1-2

Name Appearance I/O points Model number Communi-

Remote I/O Ter mi nal s wi th Transistors and Connectors

Remote Adapters

Sensor Terminals

CQM1 I/O Link Unit

32 input points (NPN) DRT1-ID32ML Normal 32 input points (PNP) DRT1-ID32ML-1 32 output points (NPN) DRT1-OD32ML 32 output points (PNP) DRT1-OD32ML-1 16 input points+16 out-

put points (NPN) 16 input points+16 out-

put points (PNP) 16 input points (NPN) DRT1-ID16X Compact (85 x 50 x 40 mm 16 input points (PNP) DRT1-ID16X-1 16 output points (NPN) DRT1-OD16X 16 output points (PNP) DRT1-OD16X-1

16 input points (NPN) DRT1-HD16S Connected to photoelectric 8 input/8 output points

(PNP)

16 internal inputs/ 16 internal outputs (between CQM1 and Master)

DRT1-MD32ML

DRT1-MD32ML-1

DRT1-ND16S

CQM1-DRT21 Remote I/O communica-

square connectors

cations

Remarks

cable

Compact (35 x 60 x 80 mm (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.

and proximity sensors with connectors

tions between PLCs

CPM2A/ CPM1A I/O Link Unit

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

CPM1A-DRT21 Remote I/O communica-

tions between PLCs

DeviceNet-compatible Devices Section 1-2

Waterproof and Environment-resistive Slaves

Name Appearance I/O points Model number Communi-

Waterproof Te r mi n al s

Environmentresistive Terminals

B7AC Interface Terminal

4 input points (NPN) DRT1-ID04CL Round con4 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 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) DRt1-WD16C 16 output points (PNP) DRT1-WD16C-1 8 input points+8 output

points (NPN) 8 input points+8 output

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

DRT1-MD16C

DRT1-MD16C-1

nectors

cations

cable

Dust and drip-proof structure 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 sys-

tem eliminates the need for tools.

Spatter, dust and drip-proof structure for environmental resistance (IP 66)

Remarks

DeviceNet-compatible Devices Section 1-2

Special Slaves

Name Appearance I/O points Model number Communi-

Programmable Slaves

C200H I/O Link Unit

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

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

CPM2C-S100CDRT CPM2C-S110CDRT

C200HW-DRT21 Supports remote I/O and

cations

cable

Normal square connectors

Controller that enables communications with CompoBus/S Master.

Enables message communications using explicit messages.

message communications between PLCs.

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

Any I/O words can be allocated.

mounted 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.

Remarks

DeviceNet-compatible Devices Section 1-2

1-2-3-2 DRT2-series Slaves

General-purpose Slaves

Name Appearance I/O points Model number Remarks

Remote I/O Terminals with Transistors

Remote I/O Terminals with Relay Outputs

8 input points (NPN) DRT2-ID08 Terminal block 8 input points (PNP) DRT2-ID08-1 8 output points (NPN) DRT2-OD08 8 output points (PNP) DRT2-OD08-1

16 input points (NPN) DRT2-ID16 16 input points (PNP) DRT2-ID16-1 16 output points (NPN) DRT2-OD16 16 output points (PNP) DRT2-OD16-1 8 input points/8 output

points (NPN) 8 input points/8 output

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

DRT2-MD16

DRT2-MD16-1

mounted/removed using screws.

Remote I/O Terminal Expansion Units with Tr an s i st o rs

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

Sensor Connector Terminals with Transistors

MIL Connector Terminals with Transistors

16 input points (NPN) XWT-ID16 Expansion Unit for 16 input points (PNP) XWT-ID16-1 16 output points (NPN) XWT-OD16 16 output points (PNP) XWT-OD16-1 8 input points (NPN) XWT-ID08 8 input points (PNP) XWT-ID08-1 8 output points (NPN) XWT-OD08 8 output points (PNP) XWT-OD08-1 16 input points (NPN) DRT2-ID16TA Wiring locations easy 16 input points (PNP) DRT2-ID16TA-1 16 output points (NPN) DRT2-OD16TA 16 output points (PNP) DRT2-OD16TA-1 8 input points/8 output

points (NPN) 8 input points/8 output

points (PNP) 16 input points (NPN) DRT2-ID16S Use industry standard 16 input points (PNP) DRT2-ID16S-1 8 input points/8 output

points (NPN) 8 input points/8 output

points (PNP) 16 input points (NPN) DRT2-ID16ML Connects to relay ter16 input points (PNP) DRT2-ID16ML-1 16 output points (NPN) DRT2-OD16ML 16 output points (PNP) DRT2-OD16ML-1 16 input points (NPN) DRT2-ID16MLX A connecting cable 16 input points (PNP) DRT2-ID16MLX-1 16 output points (NPN) DRT2-OD16MLX 16 output points (PNP) DRT2-OD16MLX-1

DRT2-MD16TA

DRT2-MD16TA-1

DRT2-MD16S

DRT2-MD16S-1

increasing inputs or outputs of the Basic Unit.

to find (wiring to the same terminal not required).

Cannot be expanded with an Expansion Unit.

Sensor connectors.

minal using MIL cable.

(10 cm) is included.

DeviceNet-compatible Devices Section 1-2

Name Appearance I/O points Model number Remarks

MIL Connector Terminals with Transistors

Board MIL Connector Ter min al s w i th Tr a ns i stors

Screw-less Clamp Terminal with Transistors

A N I

V 4

r o

n o

m O

N I M

V 4

32 input points (NPN) DRT2-ID32ML Connects to relay ter32 input points (PNP) DRT2-ID32ML-1

minal using MIL cable.

32 output points (NPN) DRT2-OD32ML 32 output points (PNP) DRT2-OD32ML-1 16 input points/16 out-

DRT2-MD32ML

put points (NPN) 16 input points/16 out-

DRT2-MD32ML-1

put points (PNP) 32 input points (NPN) DRT2-ID32B MIL connectors 32 input points (PNP) DRT2-ID32B-1 32 output points (NPN) DRT2-OD32B

n o i t

mounted parallel to board

32 output points (PNP) DRT2-OD32B-1 16 input points/16 out-

DRT2-MD32B

put points (NPN) 16 input points/16 out-

DRT2-MD32B-1

put points (PNP) 32 input points (NPN) DRT2-ID32BV MIL connectors 32 input points (PNP) DRT2-ID32BV-1

L A

o i t a

32 output points (NPN) DRT2-OD32BV

mounted perpendicular to board

32 output points (PNP) DRT2-OD32BV-1 16 input points/16 out-

DRT2-MD32BV

put points (NPN) 16 input points/16 out-

DRT2-MD32BV-1

put points (PNP) 16 input points (NPN) DRT2-ID16SL Without detection 16 input points (PNP) DRT2-ID16SL-1

function

16 output points (NPN) DRT2-OD16SL 16 output points (PNP) DRT2-OD16SL-1 16 input points (NPN) DRT2-ID16SLH With detection function 16 input points (PNP) DRT2-ID16SLH-1 16 output points (NPN) DRT2-OD16SLH 16 output points (PNP) DRT2-OD16SLH-1 32 input points (NPN) DRT2-ID32SL Without detection 32 input points (PNP) DRT2-ID32SL-1

function

32 output points (NPN) DRT2-OD32SL 32 output points (PNP) DRT2-OD32SL-1 16 input points/16 out-

DRT2-MD32SL

put points (NPN) 16 input points/16 out-

DRT2-MD32SL-1

put points (PNP) 32 input points (NPN) DRT2-ID32SLH With detection function 32 input points (PNP) DRT2-ID32SLH-1 32 output points (NPN) DRT2-OD32SLH 32 output points (PNP) DRT2-OD32SLH-1 16 input points/16 out-

DRT2-MD32SLH

put points (NPN) 16 input points/16 out-

DRT2-MD32SLH-1

put points (PNP)

DeviceNet-compatible Devices Section 1-2

Environment-resistive Slaves

Name Appearance I/O points Model number Remarks

Environment-resistive Te r mi n al s

8 input points (NPN) DRT2-ID08C Waterproof, oil-proof, 8 input points (PNP) DRT2-ID08C-1 16 input points (NPN) DRT2-HD16C 16 input points (PNP) DRT2-HD16C-1 8 output points (NPN) DRT2-OD08C 8 output points (PNP) DRT2-ID08C-1

and spatter-proof construction (IP67).

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) DRT2-OD04CL 4 output points (PNP) DRT2-OD04CL-1 8 input points (NPN) DRT2-ID08CL 8 input points (PNP) DRT2-ID08CL-1 16 input points (NPN) DRT2-HD16CL 16 input points (PNP) DRT2-HD16CL-1 8 output points (NPN) DRT2-OD08CL 8 output points (PNP) DRT2-OD08CL-1 16 output points (NPN) DRT2-WD16CL 16 output points (PNP) DRT2-WD16CL-1 8 input points/8 output

points (NPN) 8 input points/8 output

points (PNP)

Analog Slaves

Name Appearance I/O points Model number Remarks

Analog Terminals 4 input 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 (0 to 5 V, 1 to 5 V, 0 to

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

and spatter-proof construction (IP67).

Not equipped with detection functions.

DRT2-MD16CL

DRT2-MD16CL-1

DRT2-AD04 Terminal block mounted/

removed using screws. The DRT2-AD04H is a High-

resolute Terminal (1/30,000 FS).

DRT2-AD04H

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)

DRT2-DA02

DeviceNet-compatible Devices Section 1-2

Name Appearance I/O points Model number Remarks

Temperature Input Te r mi n al s

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-TS04T Thermocouple input

DRT2-TS04P Platinum resistance ther-

mometer input

DeviceNet-compatible Devices Section 1-2

1-2-3-3 MULTIPLE I/O TERMINAL Units

Unit I/O

Communications Unit

Basic I/O Units

Tr an s i stor Input Units

Tr an s i stor Output Units

Relay Output Units

points

None Two sta-

16 input points

32 input points

16 output points

32 output points

8 output points

16 output points

Words allocated in

PLC memory

Input Output

tus words 1 word 0 words M3 terminal

1 word 0 words Connector

2 words 0 words High-density

0 words 1 word M3 terminal

0 words 1 word Connector

0 words 2 words High-density

0 words 1 word M3 terminal

I/O connec-

tions

0 words None 24 V DC

block

(made by MOLEX)

(made by FUJITSU)

(D-sub, 25 pin)

connector (made by FUJITSU)

block

(made by MOLEX)

(made by FUJITSU)

(D-sub, 25 pin)

connector (made by FUJITSU)

block

Unit

power

supply

voltage

(supplied from outside)

Instal-

lation

DIN track

Model

number

DRT1-COM ---

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-OD31ML-1 PNP

GT1-ROP08 ---

GT1-ROS16 ---

Remarks

DeviceNet-compatible Devices Section 1-2

Unit I/O

Special I/O Units (See note.)

Analog Input Units

Analog Output Units

Temperature Input Unit

Counter Unit

points

4 inputs 4 words 0 words M3 terminal

8 inputs 8 words 0 words Connector

4 outputs 0 words 4 words M3 terminal

4 outputs 0 words 4 words Connector

4 inputs 4 or 8

1 input 3 words 3 words M3 terminal

Words allocated in

PLC memory

Input Output

0 words M3 terminal words (varies with data format)

I/O connec-

tions

block

(made by MOLEX)

block

(made by MOLEX)

block

Unit

power

supply

voltage

24 V DC (supplied from outside)

Instal-

lation

DIN track

Model

number

GT1-AD04 Inputs:

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 Analog Input Units, Analog Output Units, Temperature Input Units, and

Counter Units belong to a group called Special I/O Units. The front-panel indicators and other parts of Special I/O Units differ from those of other 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).

0.1 m/0.3 m/0.4 m/0.6 m/1 m

Communications Specifications Section 1-3

1-2-4 DeviceNet Configurator

The Configurator is a software configuration tool for the DeviceNet network. The Configurator can be used to set parameters (the scan list) and monitor operation in OMRON Master Units. The Configurator can also be used to set parameters in OMRON and other companies’ Slaves.

Product name Model Components Network connection

DeviceNet Configurator (Ver. 2)

WS02-CFDC1-J Installation disk

(CD-ROM)

to computer

Any of the following:

• Through an Ethernet Unit

• Serial connection

• Dedicated PCI Board

• PCMCIA Card

(See the table below.)

Applicable

computer

IBM PC/AT or compatible

Note The following Boards and Cards can be used.

Model Components Applicable

computer

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

patible

3G8E2-DRM21-V1 Dedicated PCMCIA Card with DeviceNet Configura-

tor

1-3 Communications Specifications

Item Specifications

Communications protocol

Connection methods (See note 1.)

Baud rate 500 Kbps, 250 Kbps, or 125 Kbps Communications

media

Communications distances for special 5-wire cables

Communications distances for special 4-wire flat cables

Communications power supply

Max. number of nodes

DeviceNet

Multi-drop and T-branch connections can be combined (for trunk and branch lines)

Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line) Special 4-wire flat cables (2 signal lines, 2 power lines) Baud rate Network

length 500 kbps 100 m max. 6 m max. 39 m max. 250 kbps 250 m max.

(See note 2.) 125 kbps 500 m max.

(See note 2.) Baud rate Network

length 500 kbps 75 m max. 6 m max. 35 m max. 250 kbps 150 m max. 6 m max. 48 m max. 125 kbps 265 m max. 6 m max. 135 m max. 24 V DC supplied externally

64 nodes (including Masters, Slaves, and Configurator)

Branch line length

6 m max. 78 m max.

6 m max. 156 m max.

Branch line length

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

Windows 95, 98, Me, NT 4.0, 2000, or XP

Windows 98, Me, NT

4.0, 2000, or XP

Total branch line length

Note 1. Terminators are required at both ends of trunk line.

2. Indicates the maximum network length when thick cables are used. Reduce the network length to 100 m max. when using thin cables.

Basic Operating Procedures Section 1-4

1-4 Basic Operating Procedures

1-4-1 DeviceNet Network Configuration and Wiring

1,2,3... 1. Determine the Baud Rate Required for the Application

Refer to the section on communications timing in the Master Unit Manual (see below) to determine the appropriate responsiveness and baud rate for your application.

• CS/CJ Series DeviceNet Operation Manual (W380)

• CVM1/CV DeviceNet Master Unit, C200HX/HG/HE DeviceNet Master Unit Operation Manual (W379)

• DeviceNet PCI Board Operation Manual (W381)

2. Determine the Cable Layout and Cable Lengths to All Nodes Verify that the planned configuration is within the network configuration

specifications.

• Refer to 2-1 Network Configuration Overview for details on the network configuration.

• Refer to 2-2 Network Configuration for configuration precautions.

3. Determine the Communications Power Supply Method When planning the communications power supply layout, verify that the

voltage drop over the communications cables is within specifications.

• Refer to SECTION 3 Communications Power Supply Methods for details.

• In particular, refer to 3-2-1 Communications Power Supply for a flowchart that will guide you through the selection process.

4. Select the Required Devices

• Refer to the device manuals when making arrangements for the Masters, Slaves, and the Configurator.

• Refer to 2-3 Cables, Connectors, and Related Devices for details on other related devices.

5. Purchase the Required Equipment

6. Construct the Network Construct the network using recommended wiring and noise-control tech-

niques.

• Refer to 2-4 Wiring Methods for details on wiring.

• Refer to 2-5 Minimizing Noise in the Network for details on noise-control techniques.

• Refer to 2-2 Network Configuration the Network Configuration for other precautions.

1-4-2 Network Start-up Procedure

Turn ON the communications power supply.

Turn ON the Slave power supply.

Turn ON the PLC (Master Unit) power supply.

Operate the network.

Basic Operating Procedures Section 1-4

Note 1. All three power supplies can be turned ON simultaneously. It is also ac-

ceptable to turn ON the communications and Slave power supplies or the Slave and PLC power supplies simultaneously.

2. Slaves may not be recognized if the communications power supply is turned ON after the Slave power supply.

3. Always operate the network with the scan list enabled in the Master Unit. When the scan list is enabled, the user can check whether Slaves are participating in the network from the PLC and verify that the DeviceNet network is communicating normally.

Basic Operating Procedures Section 1-4

Network Configuration and Wiring

This section explains how to plan the DeviceNet Network configuration and wire the Network.

2-1 Network Configuration Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-1-1 Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-1-2 Example Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2-1-3 Network Configuration Restrictions. . . . . . . . . . . . . . . . . . . . . . . . . 26

2-1-4 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2-1-5 Detailed Connection Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2-2 Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2-2-1 Compatible Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2-2-2 Trunk Lines and Branch Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2-2-3 Proper Cable Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2-2-4 Determining the Location of the Master. . . . . . . . . . . . . . . . . . . . . . 39

2-2-5 T-branch Tap Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2-2-6 Connecting Devices other than DeviceNet Products . . . . . . . . . . . . 40

2-2-7 Connecting Terminators (Terminating Resistors). . . . . . . . . . . . . . . 40

2-2-8 Using Crimp Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2-2-9 Sharing the Communications and Internal Circuit Power Supply . . 41

2-2-10 Grounding Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

2-2-11 Allocating Node Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2-3 Cables, Connectors, and Related Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2-3-1 Communications Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2-3-2 Connectors for Node Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 48

2-3-3 Screwdrivers for Connector Screws . . . . . . . . . . . . . . . . . . . . . . . . . 52

2-3-4 T-branch Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2-3-5 Shielded T-branch Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

2-3-7 Power Supply Tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

2-3-8 Terminating Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

2-3-9 Communications Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

2-4 Wiring Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

2-4-1 Wiring and Installing Standard Connectors . . . . . . . . . . . . . . . . . . . 62

2-4-2 Attaching Flat Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

2-4-3 Attaching Shielded Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

2-4-4 Connecting to T-branch Taps and Nodes . . . . . . . . . . . . . . . . . . . . . 69

2-4-5 Flat Cable I (Standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

2-4-6 Connecting Shielded (Environment-resistive) Cables . . . . . . . . . . . 76

2-4-7 Wiring the Communications Power Supply . . . . . . . . . . . . . . . . . . . 76

2-4-8 Connecting the Terminating Resistors (Terminators). . . . . . . . . . . . 78

2-4-9 Grounding the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

2-5 Minimizing Noise in the Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

2-5-1 Precautions to Prevent Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

2-5-2 Correcting Malfunctions due to Noise . . . . . . . . . . . . . . . . . . . . . . . 84

2-6 Operational Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

SECTION 2

Network Configuration Overview Section 2-1

2-1 Network Configuration Overview

2-1-1 Network Configuration

The DeviceNet Network can be configured as shown in the following diagrams.

Network with General-purpose Slaves Only

Connect terminators at both ends of the trunk line.

Use DeviceNet cable.

Trunk line Trunk line

TT TT

T-branch Ta p

Node

Branch line

Node

Branch line

Ground to 100

Ω or less.

Tr un k line

T-branch Ta p

Branch line

Node Node

T-branch Ta p

Node

Communications power supply

24 VDC

Power Sup ply Tap or T-branch Tap

Branch line

Use DeviceNet cable.

T-branch Ta p

Node

Tr un k line

Node

T-br a n ch Ta p

Node

Tr un k line

Connect terminators at both ends of the trunk line.

Tr un k line

Node

T-branch Ta p

T: T-branch method M: Multi-drop method

Use DeviceNet cable for the trunk lines and branch lines.

Network with General-purpose and Environment-resistive Slaves

Connect terminators at both ends of the trunk line.

Use DeviceNet cable.

Trunk line

T-branch Ta p

Branch line

Node

Use DeviceNet cable for the trunk lines and branch lines. (Use thin cable with Environment-resistive Slaves.)

TT TT

Branch line

Use DeviceNet cable.

Ground to 100 Ω or less.

Trunk line

T-branch Ta p

Branch line

Environmentresistive Slave

Branch line

Communications power supply

T-branch Ta p

Node

24 VDC

Power Supply Tap or T-branch Tap

Branch line

T-branch Tap

T-branch Ta p

T-branch Tap

Node

T-branch Connector

Node

T-branch Tap

Branch line

Environmentresistive Slave

T: T-branch method M: Multi-drop method

Branch line

Connect terminators at both ends of the trunk line.

Connector with terminator

Environmentresistive Slave

Network Configuration Overview Section 2-1

Network with General-purpose Slaves and Environment-resistive Slaves Using Flat Cable

Flat Cable Power Supply Terminal Block with Terminating Resistance (DCN4-TP4D)

Communications power supply

Thin cable

Environmentresistive Slave

T-branch Connector (Combination of DCN4-TR4-1 and DCN4-BR4)

Branch line

T-branch Connector (branch Line) (Combination of DCN4-TR4-1 and DCN4-BR4D)

Trunk line

Connectors for node connections (DCN4-SF4D)

NodeNode Node

Connector with Terminating Resistance (Combination of DCN4-TR4-1 and DCN4-TM4)

Connectors for node connections (DCN4-SF4D)

Network with General-purpose Slaves Using Special Thin Cable for Trunk Line and Flat Cable for Branch Lines

Connect terminators at both ends of the trunk line.

Flat Cable Connector: DCN4-SF4D

Use Special Flat Cable.

Connectors for node connections (DCN4-SF4D)

Trunk line Trunk line Trunk line

TT TT

T-branch Tap

Branch line

Node Node Node

Branch line

T-branch Tap

Branch line

Ground to

100 Ω or less.

Branch line

Node

Communications power supply

24 VDC

T-branch Tap

Node

T-branch Connector (branch line) (Combination of DCN4-TR4-1 and DCN4-BR4)

Power Supply Tap or T-branch Tap

Node

Branch line

Use Special Thin Cable.

Trunk

line

T-branch Tap

Node

Connect terminators at both ends of the trunk line.

Trunk

line

Trunk

line

Node Node

T: T-branch connection M: Multi-drop connection Trunk line: Use Special Thin Cable. Branch lines: Use Special Flat Cable. Flat Cable Connector: DCN4-SF4D Node Connector: DCN4-SF4D

T-branch Tap

Nodes There are two kinds of nodes in a DeviceNet Network: Slaves and Masters.

The Slaves connect to external I/O and the Masters manage the Network and the external I/O of the Slaves.

Note The Master and Slaves can be connected at any location in the Network, as

shown in the preceding diagram.

Trunk/Branch Lines The trunk line refers to the cable that has Terminating Resistors on both ends.

Terminator

Network Configuration Overview Section 2-1

The cables branching from the trunk line are known as branch lines.

Terminator

T-branch Taps

All are branch lines.

There is no limit on the number of T-branch Taps. Only the total length of the branch lines is limited

Terminator

Note With Environment-resistive Slaves (Slaves with a round connector), special

Terminating Resistors (Terminators)

Note When using a Terminal-block type Terminating Resistor, a DeviceNet cable

DeviceNet cables (Special Thin/Thick Cables and Special Flat Cables) are used for both the trunk and branch lines in DeviceNet communications. Special Thin/Thick Cables include Special Thin Cables and Special Thick Cables.

OMRON cable with a shielded, waterproof connector is used for both the trunk and branch lines.

Always connect Terminating Resistors at both ends of the network to reduce signal reflection and stabilize communications. The cable that stretches from one terminator to the other is the trunk line. Determine which cable will be the trunk line based on the network’s configuration.

Trunk line

There are two main kinds of Terminating Resistors available, one for the Tbranch Tap/Power Supply Tap and one for a Terminal Block. There are also connectors with terminating resistance (male and female) that connect to the Shielded T-branch Connector used with Environment-resistive Slaves.

must be used for the cable connecting the Terminating Resistor.

Connection Methods Two methods can be used to connect DeviceNet nodes: The T-branch method

and the multi-drop method. With the T-branch method, the node is connected to a branch line created with a T-branch Tap or Shielded T-branch Connector.

Network Configuration Overview Section 2-1

With the multi-drop method, the node is directly connected to the trunk line or the branch line.

T-branch method

T-branch Ta p

T-branch Connector

Multi-drop method

Node

Secondary branches can be made from a branch line. There is no limit on the number of T-branch Taps and multi-drop connections in the network.

Note Both of these connection methods can be used in the same Network, as

shown in the example above.

Communications Power Supply

To use DeviceNet, communications power (24 VDC) must be supplied to each node through DeviceNet cable. Refer to 2-2-9 Sharing the Communications and Internal Circuit Power Supply for details.

Ground Ground the entire network at just one point. Ground at 100 Ω or less.

2-1-2 Example Network Configuration

Node

Terminator

Node

Communications power supply (24 V DC)

Trunk line

Power Supply Ta p

Ground the network at only one point.

Branch line

Node

Terminator

T-branch made with a T-branch Tap or T-branch Connector

The max. branch line length is 6 m.

Node

Network Configuration Overview Section 2-1

2-1-3 Network Configuration Restrictions

The following table shows the maximum cable lengths and maximum current for the various cable type/baud rate combinations.

Te r mi nator

Cable type Baud rate Max.

network

length

Thick cable 500 kbps 100 m 6 m max. 39 m 8 A

250 kbps 250 m 78 m 125 kbps 500 m 156 m

Thin cable 500 kbps 100 m 39 m 3 A

250 kbps 100 m 78 m 125 kbps 100 m 156 m

Flat cable 500 kbps 75 m 35 m 5 A

250 kbps 150 m 48 m 125 kbps 265 m 135 m

Maximum network length: 100 m when baud rate is 500 kbps (When thick cable is used, the network length can be up to 250 m max. with a 250 kbps baud rate or 500 m max. with a 125 kbps baud rate.)

Current capacity of trunk line

Node

Communications power supply (24 V DC)

Trunk line

Ground the network at only one point.

Thick cable: 8A Thin cable: 3 A

Branch

line

length

Node

Tota l

branch

line

length

Current

capacity

Te r mi nator

T-branch made with a T-branch Tap or T-branch Connector

Definition of the Maximum Network Length

Definition of Branch Line Length

Power Supply

Node

The max. branch line length (from the trunk line to the last node) is 6 m.

Ta p

Branch line

Node

Node Node Node

Node

The maximum network length is the distance between the two nodes that are farthest apart or the distance between the terminators, whichever is greater. (The trunk line length and maximum network length are not always the same.)

The maximum network length is the longer of these two distances.

Terminal Block

T-branch Tap with terminator

Node

Branch line

Node

Communications power supply

Node

with terminator

A branch line cannot be longer than 6 m. The branch line length is the distance from the point in the trunk line where

the original branch was made to the end of the branch.

Network Configuration Overview Section 2-1

Note The branch line length is not just the distance between T-branch Taps or the

distance from a node to a T-branch Tap on the branch line; it is the total distance from the trunk line to the end of the branch.

Example 1 Example 2

Trunk line

T-branch Ta p

Branch line (6 m max.)

Node

Trunk line

These lengths are not branch line lengths.

T-branch Ta p A

4 m

Branch line length

1 m 1 m

T-branch Tap A to Node 1: 5 m T-branch Tap A to Node 2: 6 m T-branch Tap A to Node 3: 5 m T-branch Tap A to Node 4: 6 m

All branch lines are 6 m or less.

Definition of Total Branch Line Length

Terminator

(1) 2 m

Node

Node 1

Node 2

The total branch line length is the sum of all branch lines in the network.

Node

(7) 2 m

(8) 2 m

(10) 1 m

Node

(9) 1 m

Node

(11) 6 m (12) 6 m (13)

(2) 3 m

(3) 1 m

(4) 2 m

Node

Node Node Node Node Node

(6) 6 m

(5) 2 m

In the example above, the total branch line length is 40 m. The maximum total branch line length is 39 m for 500-kbps communications, so a baud rate of 250 kbps or 125 kbps must be used in this network.

(Total branch line length) = (1) + (2) + (3) + (4) + (5) + (6) + (7) + (8) + (9) +

(10) + (11) + (12) + (13) = 2 + 3 + 1 + 2 + 2 + 6 + 2 + 2 + 1 + 1 + 6 + 6 + 6 = 40 m

2 m

Node 3

Terminator

1 m

Node 4

Total branch line length is the total of all of these branch lines. (40 m in this case)

6 m

Current Capacities of the Cables

The current capacity of the trunk line is 8 A when a Thick Cable is used, 3 A when a Thin Cable is used, and 5 A when a Special Flat Cable is used. To estimate the current through the trunk line, add up the current consumption of all the nodes in each direction from the communications power supply. The total current consumption must be no more than 8 A when a Thick Cable is used, 3 A when a Thin Cable is used, and 5 A when a Special Flat Cable is used.

With branch lines, the current carrying capacity of the branch line is inversely proportional to the length of the line. The current capacity of a branch line is

4.57/L (A) where L is the length of the branch line (m). Verify that the total cur-

Network Configuration Overview Section 2-1

rent consumption of the nodes in the branch is less than 4.57/L or 3 A, whichever is lower.

Refer to SECTION 3 Communications Power Supply Methods for more details.

Note 1. Always use DeviceNet cables.

2. Always connect terminators at both ends of the trunk line.

3. Do not install devices other than DeviceNet devices (e.g., a lightning arrestor) in the communications line. Devices other than DeviceNet-compatible devices can cause effects such as signal reflection and interfere with DeviceNet communications.

2-1-4 Connections

Branching Patterns

Branching from the Trunk Line

1. One Branch

Trunk line

Branch line

Node

Trunk line

T-branch Tap or Power Supply Tap

2. Up to Three Branches 3. Direct Connection

Trunk line

Node Node Node

Trunk line

T-branch Ta p

Branch line

(See notes 1 and 2.)

Multi-drop

Trunk line

Node

Trunk line

Note 1. The direct multi-drop connection cannot be used for Environment-resistive

Branching from a Branch Line

Note 1. The direct multi-drop connection cannot be used for Environment-resistive

Slaves.

2. If thick cable is being used, a multi-drop connector must be used to make the direct multi-drop connection. (If thick cable is being used, the regular COMBICON connector can be used to make a multi-drop connection.)

1. One Branch

Branch line

Node

Branch line

T-branch Tap or Power Supply Tap

2. Up to Three Branches 3. Direct Connection

Branch line

Node Node Node

Branch line

T-branch Ta p

Branch line

(See notes 1 and 2.)

Multi-drop

Branch line

Node

Branch line

Slaves.

The various connection methods can be combined on the same network, as shown in the following diagram. There is no particular limit to the number of

Network Configuration Overview Section 2-1

nodes that can be connected onto a single branch line, except for the limit on the total number of nodes (63 max.) in the network.

Communications power supply

T-branch Tap with terminator

Trunk line Trunk line

Branch line

Node

NodeNode NodeNode

Note Environment-resistive Slaves cannot be connected directly to the trunk line

with the multi-drop method. General-purpose and Special Slaves can be connected directly to the trunk line with the multi-drop method, but it is easier to connect a node to a branch line.

24 VDC

T-branch Tap or Power Supply Tap

Branch line

Node

Branch line

Node

T-branch Tap with terminator

Node

Network Configuration Overview Section 2-1

2-1-5 Detailed Connection Patterns

Branches

T-branch Method

Connection pattern Connection method

General-purpose Slaves, Special Slaves, and Masters

Thick cable, thin cable, or cable with shielded connector on one end

Environment-resistive Slaves

Thick cable, thin cable, or cable with shielded connector on one end

Trunk line

Branch line

Node

Branch line

Node

Trunk line

Node Node Node

Branch line

Node Node

Trunk line

T-branch Tap or Power Supply Tap

Branch line

T-branch Tap or Power Supply Tap

Trunk line

T-branch Ta p

Branch line

T-branch Ta p

Node

Branch line

Standard Connector provided with T-branch Tap

T-branch Tap (DCN1-1C/2C/2R)

Standard Connector provided with T-branch Tap

Thick or thin cable

COMBICON Connector

General-purpose Slave, Special Slave, or Master

Cable with shielded connector on one end or both ends

Female Male

General-purpose Slave, Special Slave, or Master

General-purpose Slaves, Special Slaves, and Masters

General-purpose Slave, Special Slave, or Master

Shielded T-branch Connector DCA1-5CN@@H1 Thin

Cable with round, shielded connector on one end

COMBICON Connector

Thick cable, thin cable, or cable with shielded connector on one end

T-branch Tap (DCN1-3C/4C/4R)

Environment-resistive Slaves can be connected as well.

Thick or thin cable

COMBICON Connector

Standard Connector provided with T-branch Tap

T-branch Tap (DCN1-1C/2C/2R)

Standard Connector provided with T-branch Tap

DCA1-5CN@@F1 Thin Cable with attached round, shielded connector

Female

Male

Environment-resistive Slave

Cable with shielded connector on one end or both ends

Female

Environment-resistive Slave

Environment-resistive Slaves

Female

Environment-resistive Slave

Shielded T-branch Connector

Male

DCA1-5CN@@W1 Thin Cable with round, shielded connectors on both ends

Female

Male

Thick cable, thin cable, or cable with shielded connector on one end

T-branch Tap (DCN1-3C/4C/4R)

General-purpose Slaves can be connected as well.

DCA1-5CN@@F1 Thin Cable with attached round, shielded connector

Male

Note The cables with a shielded connector on one or both ends have a round com-

munications connector on one or both ends.

Network Configuration Overview Section 2-1

Multi-drop Method

Connection pattern Connection method

Trunk line

Branch line

Multi-drop

Node

Multi-drop

Node

Trunk line

Branch line

General-purpose Slaves, Special Slaves, and Masters

Thick cable, thin cable, or cable with shielded connector on one end

With thick cable, a multi-drop connector must be used. With thin cable, a COMBICON connector or multi-drop connector can be used.

General-purpose Slave, Special Slave, or Master

Environment-resistive Slaves

Multi-drop connections are not allowed.

Communications Power Supply

Use either of the methods shown below to connect the 24-V DC communications power supply to the trunk line. Refer to 2-4-7 Wiring the Communica- tions Power Supply for wiring details.

Connecting to a T-branch Tap

(See note 1.)

24 VDC

Trunk line

+ −

Trunk line

T-branch Ta p

Connecting to a Power Supply Tap

(See note 2.)

Trunk line

S−+

+ −

24 VDC

Note 1. The communications power supply can be connected through a T-branch

Tap only when there is just one communications power supply in the network and the total current consumption is 5 A or less.

2. The communications power supply can be connected through a Power Supply Tap even if there is more than one communications power supply in the network or the total current consumption exceeds 5 A.

When grounding the communications power supply to an acceptable ground (100

Ω or less), connect the communications power supply’s V- and FG termi-

nals.

FGV+ V−

If an acceptable ground is not available, connecting the V- and FG terminals may introduce noise into the network so we recommend against connecting the terminals.

Use a separate power supply for DeviceNet communications. The power supply can be shared, however, if noise interference is not generated by the internal circuit power supply, Sensor power supply, or other source.

Network Configuration Section 2-2

Terminating Resistors (Terminators)

Connecting to a T-branch

Tap or Power Supply Tap

(See note 1.)

Trunk line

Terminating Resistor

T-branch Ta p

Terminating Resistor

T-branch Ta p

Note 1. Connect a Terminating Resistor to the Tap when there is a T-branch Tap or

Use the methods shown below to connect the Terminating Resistors to the trunk line. Refer to 2-4-8 Connecting the Terminating Resistors (Terminators) for wiring details.

Connecting to a

Terminal Block

(See note 2.)

DRS1-1 Terminal-block Terminating Resistor

Node

Connecting to a

T-branch Connector

(See note 3.)

Trunk line

Shielded T-branch Connector

Branch line

Connector with terminator (DRS2-1, DRS2-2, or DRS3-1)

Connecting a Terminating

Resistor to a Flat Connector

Socket (See note 4.)

Trunk line

Flat Connector Socket (DCN4-TR4-1)

Terminating Resistor (DCN4-TM4)

Power Supply Tap at the end of the trunk line.

2. The Terminal-block Terminating Resistor method can be used when a node is connected at the end of the trunk line with the multi-drop connection method.

3. Use this method when there is an Environment-resistive Slave at the end of the trunk line.

4. Use this method when using Flat Cable.

Ground Use any one of the methods shown below to ground the network by connect-

ing the cable’s shielding to an acceptable ground (100 network at one point only.

Refer to 2-4-9 Grounding the Network for wiring details.

Grounding a Power

Supply Tap

Trunk line

Tr u n k line

S V−

S V− V+

Grounding a Connector

of a T-branch Tap or Node

−

24 VDC

Node

−

24 VDC

T-branch Ta p

Ω or less.) Ground the

Grounding an Unused

T-branch Tap Connector

Open connector

2-2 Network Configuration

2-2-1 Compatible Cables

Cable Requirements Always use DeviceNet cables that meet all DeviceNet specifications. The Net-

work may not operate properly if other cable is used.

Cable type OMRON model number

Thick Cable DCA2-5C10 Thin Cable DCA1-5C10 Flat Cable DCA4-4F10

Refer to the home page of the ODVA for information on DeviceNet cables other than the ones listed above.

Network Configuration Section 2-2

http://www.odva.org/

DeviceNet Cables for Moving Applications

There are DeviceNet cables available for special applications such as moving equipment. Several companies manufacture DeviceNet cables for moving applications and their contact information is available at the home page of the ODVA.

http://www.odva.org/

2-2-2 Trunk Lines and Branch Lines

Description of Trunk and Branch Lines

The DeviceNet network is made up of a trunk line and branch lines. The trunk line is the main line in the network and it is terminated at both ends by Terminating Resistors.

Thick, thin, and flat cable can be used for both trunk and branch lines.

Cable type Advantages Disadvantages

Thick cable • Can be used for long distances.

• Higher current capacity (8 A)

Thin cable • Flexible (Can be used in tight

spaces.)

Flat cable • Branching and extending

cables is simpler.

There is no limit on the number of nodes that can be connected on a branch line, although the total number of node in the network is limited. Also, there is no limit on the number of sub-branches that can be drawn from a branch line.

These features allow branches to extend from the trunk line like the branches of a tree, although the length of branches and total branch line length cannot be too long.

• Stiff and difficult to bend

• Lower current capacity (3 A)

• Not suitable for long distances

• The maximum network length and current capacity are somewhere between those of Thick and Thin Cable.

Branch Line Length

Branch lines can be up to 6 m long. The branch line length is the distance from the point in the trunk line where

the original branch was made to the end of the branch. (The branch line length is not just the distance between T-branch Taps or the distance from a Tbranch Tap on the branch line to a node; it is the total distance from the trunk line to the end of the branch.)

The branch line length is limited to 6 m in all cases.

Baud rate Cable type Branch line length

500 kbps Thick cable 6 m max.

Thin cable Flat cable

250 kbps Thick cable

Thin cable Flat cable

125 kbps Thick cable

Thin cable Flat cable

(the same in all cases)

Even if all branch lines are less than 6 m, the network will not operate properly if the total branch line length exceeds the maximum allowed (39 m at a baud rate of 500 kbps) or the total network length (distance between the terminators or most distant nodes) exceeds the maximum allowed. An incorrectly

Network Configuration Section 2-2

configured network will have recurring communications errors, such as remote I/O communications errors and transmission timeouts.

Total Branch Line Length

The total branch line length is the sum of the lengths of all branch lines in the network. The maximum total branch line length depends upon the baud rate, as shown in the following table.

• Special Thin/Thick Cable

Baud rate Total branch line length

500 kbps 39 m max. 250 kbps 78 m max. 125 kbps 156 m max.

• Special Flat Cable

Baud rate Total branch line length

500 kbps 35 m max. 250 kbps 48 m max. 125 kbps 135 m max.

Maximum Network Length

The maximum network length depends upon the baud rate and cable type, as shown in the following table.

• Special Thin/Thick Cable

Baud rate Cable type Total branch line length

500 kbps Thick cable 100 m

Thin cable

250 kbps Thick cable 250 m

Thin cable 100 m

125 kbps Thick cable 500 m

Thin cable 100 m

• Special Flat Cable

Baud rate Total branch line length

500 kbps 75 m max. 250 kbps 150 m max. 125 kbps 265 m max.

Maximum Current Capacity

The maximum current capacity of a line depends on the cable type and the function of the line (trunk or branch line). When planning the network configuration, consider the type of cable being used, position of each device, and each device’s current consumption.

Network Configuration Section 2-2

• DeviceNet Cable

Line Cable type Maximum current capacity

Trunk Thick cable 8 A

Thin cable 3 A Flat cable 5 A

Branch Thick or thin cable 0.75 to 3 A

The current capacity (A) of a branch line is 4.57/L (up to 3 A) where L is the length (m) of the branch line.

A Simple Way to Reduce Total Branch Line Length

It can be time-consuming to calculate the total branch line length and fairly difficult to meet the conditions that individual branch lines do not exceed 6 m and the total branch line length does not exceed 39 m (with a baud rate of 500 kbps.) A common cause of long branch lines and excessive total branch line length is using a straight trunk line, as shown in the following diagram.

Branch line

PLC Master

Branch line

Branch

Terminator Terminator

line

Branch line

Branch lines too long

Network configuration with a straight trunk line

Trunk line

Branch line

Trunk line Branch line

T-branch Tap

The branch line lengths can be reduced significantly by redirecting the trunk line at each node rather than using a straight trunk line. While this configuration reduces branch line lengths, it will increase the maximum network length (distance between the terminators or the nodes that are farthest apart). Verify

Network Configuration Section 2-2

that the maximum network length is within specifications, e.g., 100 m when the baud rate is 500 kbps.

Branch line

PLC Master

Branch line

Terminator Terminator

Branch line

Network configuration with a shifting trunk line

Branch lines shorter

Trunk line

Branch line

Trunk line Branch line

T-branch Tap

Selecting the Trunk Line We recommend identifying the trunk line based on the control panels, such as

the line between control panels or the line within a control panel.

Sub-panel

Branch

Main control panel

PLC Master

Branch line

line

Terminator

Trunk line

Sub-panel

Branch line

Trunk line Branch line

T-branch Tap

Terminator

Network Configuration Section 2-2

2-2-3 Proper Cable Usage

The following table shows the limitations of the thin and thick cables.

Cable type Baud rate Max. network

length

Thick cable 500 kbps 100 m 6 m max. 39 m 8 A

250 kbps 250 m 78 m 125 kbps 500 m 156 m

Thin cable 500 kbps 100 m 39 m 3 A

250 kbps 100 m 78 m 125 kbps 100 m 156 m

Branch

line length

Total branch

line length

Current

capacity

Selecting between Thick and Thin Cable

1,2,3... 1. Maximum network length

The branch line length and total branch line length limitations are the same for both thin and thick cables. The cables differ in the following two capabilities.

With thin cable, the maximum network length is limited to 100 m in all cases. At 500 kbps, the maximum network length is the same for both thick and thin cables, so this limitation is not a consideration when the baud rate is 500 kbps.

Thick and thin cable can be used in the same network, but the max. network length declines as more thin cable is used. Refer to Combining Thick and Thin Cables on page 37 for the equations used to calculate the max. network length when thick and thin cable are used together.

2. Current capacity In the trunk line, the cable current capacity (max. current allowed in the ca-

ble) is 3 A for thin cable and 8 A for thick cable. Consequently, thick cable can provide a significantly higher current when the communications power supply is being supplied through a Power Supply Tap. If thin cable is being used, the current in any one direction is limited to 3 A regardless of the capacity of the 24 V DC power supply that is connected.

Power Supply Tap

Current 8 A max.

←→ ←→

Communications power supply

Current 8 A max.

Thick cable

Thin cable

Current 8 A max.

Current 3 A max.

Power Supply Tap

Current 3 A max.

Thin cable

Communications power supply

Power Supply Tap

←→

Communications power supply

Current 3 A max.

Thin cable

Note The communications power supply can also be supplied through a T-branch

Combining Thick and Thin Cables

Tap or T-branch Connector, but the current capacity of a T-branch Tap is 5 A. The current capacity of the thin-cable T-branch Connectors is 3 A and the current capacity of the thick-cable T-branch Connector is 8 A. Consequently, the conditions for supplying power through a T-branch Tap or thin-cable T-branch Connector are as follows: There can be only one communications power supply in the network and the total current consumption (in both directions) is limited to 5 A for a T-branch Tap or 3 A for a thin-cable T-branch Connector.

Thick and thin cable can be combined in the line connecting most distant nodes, but the max. network length will be shorter than it would be with thick

Network Configuration Section 2-2

cable alone. Use the following formulae to calculate the max. network length based on the lengths of thick and thin cable in the line.

Baud rate Max. network length

500 kbps L 250 kbps L 125 kbps L

: Length of thick cable in the maximum network length

THICK

: Length of thin cable in the maximum network length

THIN

Example Calculation

Max. network length

THICK

+ L

THIN

+ 2.5 × L + 5 × L

THIN

≤ 100 m

≤ 250 m

THIN

≤ 500 m

Applications Requiring Thin Cable

Terminal-block Terminating Resistor

Node

24 m 125 m 20 m 1 m

Thin Thin

6 m

Thin

+ L

THICK

THIN

+ 2.5 × L + 5 × L

Thick

Node

= 175 m ≥ 100 m 500 kbps not allowed

= 250 m ≤ 250 m 250 kbps OK

THIN

= 375 m ≤ 500 m 125 kbps OK

THIN

Node

The results of the above formulae indicate that 250 kbps and 125 kbps can be used as the baud rates for this configuration example.

Even when the above conditions are met, however, the current flowing through the cables must not exceed the permissible current capacity. (Refer to SECTION 3 Communications Power Supply Methods.)

Thin cable must be used in applications where space is restricted and thick cable cannot be bent enough. In particular, use thin cable when wiring devices mounted to DIN Track and the area between the DIN Tracks is limited.

Thick cable

Sub-panel

DIN Track

Thin cable

In conclusion, we recommend the following usage:

Application Cable type

Trunk line Thick cable Branch lines Unrestricted spaces such as outside panels Thick cable

Restricted spaces such as within panels Thin cable

Network Configuration Section 2-2

Proper Distance between Wiring Duct and Node

Note Do not strip too much insulation and shielding from the cable. Removing too

Considerations in Choosing Special Thin/ Thick Cable or Special Flat Cable

Allow about 10 cm between the wiring duct and nodes so that the nodes can be wired without straining the connectors. Communications errors may occur if there isn’t enough slack in the cable and the connectors are pulled out.

Duct

Too close

Node

Incorrect Correct

Node

Duct

Allow about 10 cm.

much shielding will provide a path for noise to enter the network.

Using Special Flat Cable makes it easy to extend a branch cable using onetouch connectors, but Special Flat Cable cannot be combined with a trunk line consisting of Special Thin/Thick Cable. There are differences between Special Thin/Thick Cable and Special Flat Cable in terms of maximum network length, branch line length, and current capacity. For detailed specifications, refer to 2-2-2 Trunk Lines and Branch Lines.

Trunk line Branch line Application

Flat cable Thick cable Connect to T-branch Tap.

Thin cable Connect using T-branch Connector

(DCN4-TR4-1 + DCN4-BR4D).

Flat cable Connect using T-branch Connector

Thick cable Flat cable Connect to T-branch Tap. Thin cable Flat cable Connect to T-branch Tap.

(DCN4-TR4-1 + DCN4-BR4).

2-2-4 Determining the Location of the Master

It is not necessary to locate the Master at the end of the network. The Master can be located at any node position on the trunk line or a branch line. Configure the network as desired, since there is no restriction on the Master’s location.

Main control panelSub-panel

PLC Master

Branch lines

Sub-panel

Branch lines

Trunk line Branch line

T-branch Tap

Sub-panel

Branch line

Network Configuration Section 2-2

2-2-5 T-branch Tap Connections

The single-branch T-branch Taps (3 connectors) can be used to make a branch from the trunk line or a branch line. It isn’t necessary to connect the paired connectors to the trunk line. Likewise, there is no restriction on the use of connectors in a three-branch T-branch Tap. The connectors can connect to the trunk line or branch lines.

Trunk line

Branch line

Tr u n k line

Trunk line

Branch line

Both configurations are acceptable.

Trunk line

Branch lines

Both configurations are acceptable.

Although there is no restriction on the use of connectors in the T-branch Taps, as a rule we recommend using the paired connectors for the trunk line so that the trunk line is easy to identify.

2-2-6 Connecting Devices other than DeviceNet Products

Do not connect devices that are not DeviceNet products because incompatible devices can cause signal reflection or attenuation and interfere with normal network communications.

2-2-7 Connecting Terminators (Terminating Resistors)

What is a Terminating Resistor?

Operation without Terminating Resistors

A Terminating Resistor (commonly known as a terminator) is a resistor connected to the end of the trunk line to absorb the signals sent through the network, dissipating the signals as heat and preventing them from bouncing back into the network. A Terminating Resistor is required at each end of the network (trunk line).

Note Terminating resistors are not built into DeviceNet devices.

The DeviceNet network will not function properly without Terminating Resistors. Communications errors will occur, such as remote I/O communications errors and communications timeouts.

The signals in a DeviceNet network are comparable to surface waves on water. When a stone is dropped in a bucket of water, circular waves emanate from the stone and run into the sides of the bucket and the reflected waves interfere with the waves coming from the center. As a result, the waves from the center become distorted.

The same principle applies to the digital signals in a DeviceNet network. When the digital signals (waves) passing through the network reach the end of the network, the bounce back and interfere with the signals (waves) emanating from the DeviceNet Master (center) of the network.

The Terminating Resistors absorb the digital signals at the ends of the network so that they do not bounce back and distort the signals from the Master.

Trunk line

Branch line

Tr un k line

Operation with Too Many Terminating Resistors

If Terminating Resistors are attached at all T-branch Taps within the network, the digital communications signals will be absorbed midway through the network and the network will not function normally. Communications errors will occur, such as remote I/O communications errors and communications timeouts.

Network Configuration Section 2-2

Checking the Installation of Terminating Resistors

If communications errors occur when setting up the system, it is possible to check whether or not the Terminating Resistors are connected properly. Turn OFF the network power supply and use a multimeter to test the resistance between any node’s CAN H signal wire (white) and CAN L signal wire (blue).

• A normal resistance reading is 50 to 70

• If the resistance is greater than 70

Ω.

Ω, there may be a broken signal line

in the network or one or both Terminating Resistors may be missing. A reading of about 100

Ω indicates that one Terminating Resistor is

missing. A reading of about 300

Ω or higher indicates that both Terminating Re-

sistors are missing.

• If the resistance is less than 50

Ω, there may be too many Terminating

Resistors (3 or more) in the network.

Multimeter

Use a multimeter to measure the resistance between the signal wires.

Ω

Blue (CAN L)White (CAN H)

Note Do not test the resistance while the network is operating. Errors will occur in

the communications data and could cause unexpected problems.

2-2-8 Using Crimp Terminals

We strongly recommend the use of crimp terminals (solderless pin terminals) on the wires that connect to the communications cable connectors. The following problems may occur if crimp terminals are not used.

1. A stray wire strand may contact the adjacent terminal and cause a short.

2. The cable may pull out of the connector.

3. The contact between the wire and connector may be poor.

Refer to 2-4 Wiring Methods for information on recommended crimp terminals.

2-2-9 Sharing the Communications and Internal Circuit Power Supply

To avoid noise problems, it is generally recommended to provide separate communications and internal circuit power supplies, but the same power supply can be used for both purposes if necessary.

When a power supply is shared for the communications and internal circuit power supplies, wire the network as shown in configuration A. Do not use configuration B because it will generate more noise than configuration A.

Network Configuration Section 2-2

Configuration A:

Shared communications and internal circuit power supply

Correct

Configuration B:

Communications power supply

V− V+ − +

Internal circuit power supply

24 VDC

Communications power supply

V− V+ − +

24 VDC

Internal circ uit power supply

Incorrect

Note The low voltage limit for the internal circuit power supply is higher than the low

voltage limit for the communications power supply. To meet the voltage specifications for the internal circuit power supply, be sure to follow the specifications listed in SECTION 3 Communications Power Supply Methods.

2-2-10 Grounding Methods

Proper Grounding Practices

Example A Example B

Ground the DeviceNet shield wire to 100 Ω max. at one and only one point in the network. Grounding more than one point can cause ground loops and noise in the network.

Generally, the communications power supply’s FG terminal is grounded to

Ω max. and connected to the V- terminal and the Power Supply Tap’s

100 shield (S) terminal, as shown in example A below. It is also acceptable to connect the communications power supply’s FG terminal and the V- terminal and ground the network from the Power Supply Tap’s shield (S) terminal, as shown in example B below.

In either case, ground the network as close to the center of the network as possible.

Shared communications and internal circuit power supply

Communications power supply

Vv V+ − +

24 VDC

Internal circ uit power supply

Communications power supply

24 VDC

V− V+ − +

Internal circuit power supply

Power Supply Tap

V+

CAN H

Shield (S) Shield (S)

CAN L

V−

V+ V− S

V+ V− FG

Communications power supply

V+ CAN H

CAN L V−

Ground to 100

Ω max.

When there are two or more communications power supplies in the network, determine which power supply is closest to the center of the network. Connect

DeviceNet cable

Power Supply Tap

V+

CAN H

Shield (S) Shield (S)

CAN L

V−

V+ V− S

V+ CAN H

CAN L V−

Ground to 100

Ω max.

V+ V− FG

Communications power supply

DeviceNet cable

Cables, Connectors, and Related Devices Section 2-3

just that power supply’s to the shield wire and ground it. Do not connect the shield wire at any other point.

Note 1. Do not ground the shield wire at more than one point in the network.

Ground the network at one point and one point only.

2. Always use a separate ground. Never use the same ground that is used for inverters or other drive system devices.

3. If a good ground of 100 munication power supply’s FG and V- terminals because the ground may introduce noise into the network.

Ω or less is not available, do not connect the com-

Minimizing Effects of a Noisy Ground

When the ground is identified as a source of noise in the network, disconnect the DeviceNet shield wire to isolate it from the ground. If this step does not stop noise from entering the network, do not ground the communications power supply’s FG terminal.

2-2-11 Allocating Node Numbers

Node numbers do not have to reflect the physical position of the nodes in the network. It is possible to allocate node numbers randomly. It is also acceptable to skip node numbers. While node numbers can be allocated randomly, we recommend following a pattern when allocating node numbers. For example, set the Master as node 63, the Slaves as nodes 1 through 62, and the Configurator as node 0.

2-3 Cables, Connectors, and Related Devices

2-3-1 Communications Cables

In a DeviceNet system, use DeviceNet cables that conforms to DeviceNet specifications. The cable characteristics affect DeviceNet communications, so cable that is not within DeviceNet specifications cannot be used. Always use the specified DeviceNet cables.

There are two kinds of Special Thin/Thick Cable: Thick Cable and Thin Cable. Thin Cable is used for the cables with attached shielded connectors.

Available Cables

Cable Appearance Model Specifications

Thick Cable DCA2-5C10 Outer diameter: 11.6 mm

Length: 100 m (See note.)

Thin Cable DCA1-5C10 Outer diameter: 7 mm

Length: 100 m (See note.)

Cables, Connectors, and Related Devices Section 2-3

Cable Appearance Model Specifications

Thin Cable Cable with

Shielded Connectors

Thick Cable Cable with

Shielded Connectors

M12 size M12 size

Plug (Male)

M12 size

Mini-size M12 size

Plug (Male)

Mini-size Mini-size

Plug (Male)

Mini-size

Socket (Female)

Mini-size

Socket (Female)

Plug (Male)

Thin cable

Thick cable

Socket (Female)

Flat Cable DCA4-4F10 Dimensions: 10.16 × 2.54 mm

DCA1-5CNC5W1 Length: 0.5 m Thin cable with DCA1-5CN01W1 Length: 1 m DCA1-5CN02W1 Length: 2 m DCA1-5CN03W1 Length: 3 m DCA1-5CN05W1 Length: 5 m

shielded, micro-size (M12) connectors on both ends

DCA1-5CN10W1 Length: 10 m DCA1-5CNC5F1 Length: 0.5 m Thin cable with DCA1-5CN01F1 Length: 1 m DCA1-5CN02F1 Length: 2 m DCA1-5CN03F1 Length: 3 m DCA1-5CN05F1 Length: 5 m DCA1-5CN10F1 Length: 10 m

shielded, micro-size (M12) connector on one end (Socket: Female)

DCA1-5CNC5H1 Length: 0.5 m Thin cable with DCA1-5CN01H1 Length: 1 m DCA1-5CN02H1 Length: 2 m DCA1-5CN03H1 Length: 3 m DCA1-5CN05H1 Length: 5 m

shielded, micro-size (M12) connector on one end (Plug: Male)

DCA1-5CN10H1 Length: 10 m DCA1-5CN01W5 Length: 1 m Thin cable with DCA1-5CN02W5 Length: 2 m DCA1-5CN05W5 Length: 5 m DCA1-5CN10W5 Length: 10 m

shielded connectors on both ends

Mini-size plug (male) and micro-size (M12) socket:

(female) DCA2-5CN01W1 Length: 1 m Thick cable DCA2-5CN02W1 Length: 2 m DCA2-5CN05W1 Length: 5 m DCA2-5CN10W1 Length: 10 m

with shielded,

mini-size con-

nectors on

both ends DCA2-5CN01F1 Length: 1 m Thick cable DCA2-5CN02F1 Length: 2 m DCA2-5CN05F1 Length: 5 m DCA2-5CN10F1 Length: 10 m

with shielded,

mini-size con-

nector on one

end (Socket:

Female) DCA2-5CN01H1 Length: 1 m Thick cable DCA2-5CN02H1 Length: 2 m DCA2-5CN05H1 Length: 5 m DCA2-5CN10H1 Length: 10 m

with shielded,

mini-size con-

nector on one

end (Plug:

Male)

Length: 100 m

Note OMRON provides Flat Cable in 100-m lengths. Ask you OMRON representa-

tive if you need a different length.

Cables, Connectors, and Related Devices Section 2-3

Communications Cable and Communications Distance

Cable Max. network

length

Thick cable At 500 kbps: 100 m

At 250 kbps: 250 m At 125 kbps: 500 m

Thin cable

100 m

(See note.) Flat cable At 500 kbps: 75 m

At 250 kbps: 150 m At 125 kbps: 265 m

Note Thin cable includes the cables with shielded connectors attached.

Max. branch

line length

Max. total branch line

length

6 m At 500 kbps: 39 m

At 250 kbps: 78 m At 125 kbps: 156 m

6 m At 500 kbps: 35 m

At 250 kbps: 48 m At 125 kbps: 135 m

11.2 mm to 12.1 mm outside diameter

Shield wire

Woven shield

Signal wires (Blue and white)

Power wires (Red and black)

6.9 mm outside diameter Signal wires

Woven shield

Shield wire

(Blue and white)

Power wires (Red and black)

Wire type Color Function Symbol

Signal wires Blue Communications signal, Low CAN L

White Communications signal, High CAN H

Power wires Red Communications power, positive V+

Black Communications power, negative V−

Shield wire --- Shield S

Red: V+

Conductor

No.

White: CAN H

Insulation

Blue: CAN L

color

Black: V−

Application Nominal

1RedV+

(communications power supply positive side)

2 White CAN H

(signal high)

cross-

section

0.75 mm (AWG19)

0.5 mm (AWG21)

Conductor resistance

(Ω/km)

25.0 max. 5 max.

37.5 max. ---

Allowable

current (A)

Cables, Connectors, and Related Devices Section 2-3

Connecting Communications Cables

Terminating

Resistor

(121

Ω)

Terminators are required at both ends of the network.

V+ (Red)

CAN H (White)

Shield

CAN L (Blue)

V- ( B lac k)

Conductor

No.

3BlueCAN L

4BlackV−

Power Supply Tap

Communications Power Supply (24 V DC)

Ground the network at one point only.

Insulation

Trunk line

T-branch Tap or T-branch Connector

Ground

Ω or less)

(100

color

(signal low)

(communications power supply negative side)

T-branch Tap or T-branch Connector

Application Nominal

cross-

section

0.5 mm (AWG21)

0.75mm (AWG19)

V+ (Red)

CAN H (White)

Shield

CAN L (Blue)

V- ( Black)

Branch line

Connector

Node Node

Conductor resistance

Allowable

current (A)

(Ω/km)

37.5 max. ---

25.0 max. 5 max.

Terminating Resistor

Ω)

(121

Terminators are required at both ends of the network.

Note The ground may introduce noise into the network if a poor quality ground is

used and the FG terminal is connected to the V- terminal. If a good ground of 100

Ω or less is not available, do not connect the communication power sup-

ply’s FG and V- terminals.

Communications Cable Specifications

Special Thin/Thick Cable

Item Thick Cable Thin Cable

Signal wires Power wires Signal wires Power wires

Model DCA2-5C10 DCA1-5C10 Conductor cross-sectional area 0.86 mm Conductor outer diameter 1.21 mm 1.92 mm 0.60 mm 0.80 mm Color Blue and white Red and black Blue and white Red and black Impedance 120 Ω ±10% --- 120 Ω ±10% --Propagation delay 1.36 ns/ft --- 1.36 ns/ft --Attenuation factor 500 kHz: 0.25 dB/

100 ft 125 kHz: 0.13 dB/ 100 ft

Conductor resistance 6.9 Ω/1,000 ft

22.6 Ω/1,000 m Maximum current --- 8 A --- 3 A Finished outer diameter 11.2 to 12.1 mm 6.9 mm

2.17 mm

--- 500 kHz: 0.50 dB/

0.20 mm

0.38 mm

--100 ft 125 kHz: 0.29 dB/ 100 ft

2.7 Ω/1,000 ft

8.9 Ω/1,000 m

28 Ω/1,000 ft

91.9 Ω/1,000 m

17.5 Ω/1,000 ft

57.4 Ω/1,000 m

Cables, Connectors, and Related Devices Section 2-3

Special Flat Cable

Item Flat Cable

Signal wires Power wires

Model DCA4-4F10 Conductor cross-sectional area 0.5 mm Conductor outer diameter 0.95 mm 1.2 mm Color Blue and white Red and black Impedance 120 Ω ±10% --Propagation delay 1.78 ns/ft --Attenuation factor 500 kHz: 0.42 dB/100 ft

125 kHz: 0.25 dB/100 ft Conductor resistance 10.6 Ω/1,000 ft 6.9 Ω/1,000 ft Maximum current --- 5 A Finished outer diameter 2.54 × 10.16 mm

Note There are a variety of DeviceNet cables available, such as cables for moving

applications. For more details, refer to the homepage of the ODVA at http:// www.odva.org/.

0.75 mm

---

Cables, Connectors, and Related Devices Section 2-3

2-3-2 Connectors for Node Connections

Standard Connectors The following table shows the standard connectors provided with Masters,

Slaves, and T-branch Taps.

Name Model Specifications Remarks

Straight Connector with Attachment Screws

Insertion

Attachment screws

Wiring direction

direction

COMBICON Plug PHOENIX CONTACT

Insertion direction

XW4B-05C1-H1-D Straight connector with

attachment screws The insertion and wiring

directions are the same.

Straight connector with-

MSTB 2.5/5-ST-5.08 AU

out connector attachment screws.

The insertion and wiring directions are the same.

This connector is provided with the DCN1-1C/2C/3C/4C T-branch Taps as well as Masters and Slaves other than those listed in the note.

This connector is provided with the Masters and Slaves listed in the note.

Wiring direction

Right-angle Connector with Attachment Screws

Attachment screw

Insertion direction

Wiring direction

Straight Clamp Connector with Attachment Screws

Attachment screw

Wiring direction

Insertion direction

XW4B-05C1-VIR-D Right-angle connector

with attachment screws The insertion and wiring

directions are perpendicular.

XW4G-05C1-H1-D Straight connector with

attachment screws The insertion and wiring

directions are the same.

Flat Cable Connector DCN4-SF4D Flat cable pressure-weld

Attachment screw

Insertion direction

connector with attachment screws

This connector is provided with the DCN1-2R/4R Tbranch Taps.

This connector is provided with the DCN1-1NC/3NC Tbranch Taps and DRT2series Masters and Slaves.

---

Wiring direction

Cables, Connectors, and Related Devices Section 2-3

Note The following Units include a Straight Connector without Screws.

3G8B3-DRM21 DRT1-ID08(-1) DRT1-ID16X(-1)

DRT1-OD08(-1) DRT1-OD16X(-1)

3G8E2-DRM21 DRT1-ID16(-1) DRT1-HD16S

DRT1-OD16(-1) DRT1-ND16S DRT1-MD16

Use a straight connector when wiring space is available.

Shielded Connector Products

Use the following Cables and Connectors to connect to Environment-resistive Slaves and the shielded T-branch Connectors.

Name Model Specifications Remarks

Thin cable with shielded, micro-size (M12) connectors on both ends

Thin cable

Micro-size (M12)

Use a right-angle connector when wiring space is restricted.

XW4B-05C1

-VIR-D

XW4B-05C1

-H1-D

Wiring space available

Wiring space restricted

DCA1-5CN@@W1 Used to connect a micro-size (M12)

connector of a shielded T-branch Connector to another T-branch Connector or Environment-resistive Slave.

Cable lengths:

0.5 m 1 m 2 m 3 m 5 m 10 m

Thin cable with a shielded, micro-size (M12) female connector on one end and a mini-size male connector on the other

Thin cable

Mini-size

Micro-size (M12)

Thin cable with a shielded, micro-size (M12) female connector (socket) on one end

Thin cable

Micro-size (M12)

Thin cable with a shielded, micro-size (M12) male connector (plug) on one end

Micro-size (M12)

Thin cable

DCA1-5CN@@W5 Used to connect a mini-size con-

nector of a shielded T-branch Connector to a micro-size (M12) connector of another T-branch Connector

DCA1-5CN@@F1 Used to connect a T-branch Tap to

an Environment-resistive Slave.

DCA1-5CN@@H1 Used to connect a micro-size (M12)

connector of a shielded T-branch Connector to a device other than an Environment-resistive Slave, such as a Master, Slave, or Tbranch Tap.

Cable lengths: 1 m 2 m 5 m 10 m

Cable lengths:

0.5 m 1 m 2 m 3 m 5 m 10 m

Cables, Connectors, and Related Devices Section 2-3

Name Model Specifications Remarks

Shielded, micro-size (M12) female connector (socket) for custom cable assembly

Shielded, micro-size (M12) male connector (plug) for custom cable assembly

XS2C-D5S7 Connects to a micro-size (M12)

connector of a shielded T-branch Connector or Environment-resistive Slave.

Compatible with thin cable only.

XS2G-D5S7 Connects to a micro-size (M12)

connector of a shielded T-branch Connector.

Compatible with thin cable only.

---

Thick cable with shielded, mini-size connectors on both ends

Thick cable

Mini-size

Thick cable with a shielded, mini-size female connector (socket) on one end

Thick cable

Mini-size

Thick cable with a shielded, mini-size male connector (plug) on one end

Thick cable

Mini-size

DCA2-5CN@@W1 Used to connect a mini-size con-

nector of a shielded T-branch Connector to a mini-size connector of another shielded T-branch Connector or an Environment-resistive Slave.

(Primarily used in the trunk line.)

DCA2-5CN@@F1 Used to connect to a T-branch Con-

nector or Environment-resistive Slave.

(Primarily used in the trunk line.)

DCA2-5CN@@H1 Used to connect a mini-size con-

nector of a shielded T-branch Connector to a device other than an Environment-resistive Slave, such as a Master, Slave, or T-branch Ta p.

(Primarily used in the trunk line.)

Cable lengths: 1 m 2 m 5 m 10 m

Cables, Connectors, and Related Devices Section 2-3

Multi-drop Connectors

Name Model Specifications Remarks

Straight multi-drop connector with attachment screws

Insertion direction

Wiring direction

Straight multi-drop connector without attachment screws

Insertion direction

Wiring direction

Straight multi-drop clamp connector with attachment screws

Attachment screw

Insertion direction

The following table shows connectors that can be used for multi-drop connections. These connectors are not supplied with OMRON products, but must be ordered separately. Since these connectors cannot be used with all DeviceNet

devices, check that the connector is compatible before ordering.

XW4B-05C4-TF-D Straight multi-drop connector

with attachment screws The insertion and wiring

directions are the same.

XW4B-05C4-T-D Straight multi-drop connector

without attachment screws The insertion and wiring

directions are the same.

XW4G-05C4-TF-D Straight multi-drop connector

with attachment screws The insertion and wiring

directions are the same.

These multi-drop connectors cannot be used with all Masters and Slaves. See the note following this table for a list of the compatible Units.

Wiring direction

Note The multi-drop connectors can be used with the following Units

CS1W-DRM21 DRT1-ID16T(-1) DRT2-ID08(-1) DRT2-ID16SL(-1) CJ1W-DRM21 DRT1-MD16T(-1) DRT2-OD08(-1) DRT2-OD16SL(-1) CPM2C-S100C-DRT DRT1-OD16T(-1) DRT2-ID16(-1) DRT2-ID16SLH(-1) CPM2C-S110C-DRT DRT1-ID16TA(-1) DRT2-OD16(-1) DRT2-OD16SLH(-1) CPM1A-DRT21 DRT1-MD16TA(-1) DRT2-MD16(-1) DRT2-ID32SL(-1)

DRT1-OD16TA(-1) DRT2-AD04 DRT2-OD32SL(-1) DRT1-ID32ML(-1) DRT2-DA02 DRT2-MD32SL(-1) DRT1-MD32ML(-1) DRT2-ROS16 DRT2-ID32SLH(-1) DRT1-OD32ML(-1) DRT2-ID16TA(-1) DRT2-OD32SLH(-1) DRT1-232C2 DRT2-OD16TA(-1) DRT2-MD32SLH(-1) DRT1-COM DRT2-MD16TA(-1)

DRT2-ID16S(-1) DRT2-ID16ML(-1) DRT2-OD16ML(-1) DRT2-ID16MLX(-1) DRT2-OD16MLX(-1) DRT2-ID32ML(-1) DRT2-OD32ML(-1) DRT2-MD32ML(-1)

Cables, Connectors, and Related Devices Section 2-3

Multi-drop Wiring

Always use a multi-drop connector when making a multi-drop connection with thick cable. When thin cable is being used, the multi-drop connection can be made with either a multi-drop connector or a standard rectangular connector. Refer to Multi-drop Wiring Methods on page 65 for details on proper multidrop wiring methods.

2-3-3 Screwdrivers for Connector Screws

Special Screwdrivers We recommend using one of the following special screwdrivers when con-

necting communications cables to the standard connectors.

Name Model Manufacturer

Screwdriver for DeviceNet connectors

XW4Z-00C OMRON SZF-1

PHOENIX CONTACT

0.6B3.5C100

Units: mm

Pliers

2-3-4 T-branch Taps

Note 1. A T-branch Tap cannot be used to create a T-branch in a Network that has

A BC

Name Appearance Model Application

Pliers

DWT-A01 Pliers for pressure-welding a

DCN4-TR4-1 Flat Connector Socket or a DCN4-BR4 Flat Connector Plug.

Use a T-branch Tap when a T-branch is required in the Network. There are two kinds of T-branch Taps, one that makes a single branch and another that makes three branches. There are variations of the single-branch and threebranch Taps that provide different wiring directions and connector insertion directions.

cables with shielded connectors. In this case, a T-branch Connector must be used. Refer to 2-3-5 Shielded T-branch Connectors for details.

2. Because the T-branch Tap has a Terminating Resistor socket, a Terminating Resistor can be connected to the trunk line by installing one of the resistors provided.

3. When the Network is powered by a single power supply and the total current consumption is 5 A or less, a T-branch Tap can be used instead of a Power Supply Tap to connect the communications power supply.

4. The T-branch Taps are identical in models DCN1-2C, DCN1-2R, DCN14C, and DCN1-4R; just the connectors included with the Tap are different.

Cables, Connectors, and Related Devices Section 2-3

T-branch Taps

Branches Model Number of

Singlebranch

Threebranch

DCN1-1NC 3 connectors

DCN1-1C XW4B-05C1-H1-D

DCN1-2C From top From top From side

DCN1-2R XW4B-05C1-VIR-D

DCN1-3NC 5 connectors

DCN1-3C XW4B-05C1-H1-D

connectors

(for 1 branch)

(up to 3 branches)

Connectors provided Wiring

XW4G-05C1-H1-D Straight clamp connector with attachment screws

(3 attached)

Straight connector with attachment screws

(3 attached)

Right-angle connector with attachment screws

(3 attached) XW4G-05C1-H1-D

Straight clamp connector with attachment screws

(5 attached)

Straight connector with attachment screws

(5 attached)

direction

From top From top From top Can be

From side From side From top

From side From top From top

From top From top From top Can be

From side From side From top

Insertion direction

Set screw

access

Terminating

Resistance

installed (provided with Unit)

DCN1-4C From top From top From side

DCN1-4R XW4B-05C1-VIR-D

Right-angle connector with attachment screws

(5 attached)

From side From top From top

Cables, Connectors, and Related Devices Section 2-3

Cable Wiring Direction and Connector Insertion Direction

DCN1-1C/3C

Insertion direction

DCN1-2R/4R

Insertion direction

Wiring direction

DCN1-2C/4C

Insertion direction

Wiring direction

Cables, Connectors, and Related Devices Section 2-3

Components and their Functions

DCN1-1NC T-branch Tap Components

Communications Connectors Connect the network communications cable to the provided

XW4G-05C1-H1-D Connectors.

Mounting screw holes Use when screwing the T-branch

Tap to a control panel.

ON/OFF switch

DIN Track mounting hook Use when mounting the Tap to a DIN Track. A trunk line is usually connected here.

DCN1-1C T-branch Tap Components

Communications Connectors Connect the network communications cable to the provided XW4B-

05C1-H1-D Straight Connectors.

Mounting screw holes Use when screwing the T-branch

Tap to a control panel.

DCN1-1C

T-PORT TAP

Communications Connector Connect the network communications cable to the provided

XW4B-05C1-H1-D Straight Connector.

DIN Track mounting hook Use when mounting the Tap to a DIN Track. A trunk line is usually connected here.

Terminating Resistor socket Connect a Terminating Resistor

here if the T-branch Tap is installed at the end of the trunk line.

Cables, Connectors, and Related Devices Section 2-3

DCN1-2C and DCN1-2R T-branch Tap Components

Communications Connectors Connect the network communications cable. The following connectors are provided. DCN1-2C: XW4B-05C1-H1-D Straight Connector with attachment screws

DCN1-2R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws

Mounting screw holes Use when screwing the T-branch

Tap to a control panel.

DCN1-2

T-PORT TAP

Communications Connector Connect the network communications cable. The following connectors are provided. DCN1-2C: XW4B-05C1-H1-D Straight Connector with attachment screws

DCN1-2R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws

DIN Track mounting hook Use when mounting the Tap to a DIN Track. A trunk line is usually connected here.

Terminating Resistor socket Connect a Terminating Resistor

here if the T-branch Tap is installed at the end of the trunk line.

DCN1-3NC T-branch Tap Components

Communications Connectors Connect the network communications cable. The following connectors are provided. XW4G-05C1-H1-D Straight Clamp Connector with attachment screws

Mounting screw holes Use when screwing the T-branch

Tap to a control panel.

ON/OFF switch

DIN Track mounting hooks Use when mounting the Tap to a DIN Track. A trunk line is usually connected here.

Cables, Connectors, and Related Devices Section 2-3

DCN1-3C T-branch Tap Components

Communications Connectors Connect the network communications cables to the provided XW4B-

05C1-H1-D Straight Connectors.

Mounting screw holes Use when screwing the T-

branch Tap to a control

DCN1-3C

T-PORT TAP

Communications Connectors Connect the network communications cables to the provided

XW4B-05C1-H1-D Straight Connectors.

DIN Track mounting hooks Use when mounting the Tap to a DIN Track.

DCN1-2C and DCN1-2R T-branch Tap Components

Communications Connectors Connect the network communications cables. The following connectors are provided. DCN1-4C: XW4B-05C1-H1-D Straight Connector with attachment screws

DCN1-4R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws

panel.

Terminating Resistor socket Connect a Terminating

Resistor here if the T-branch Tap is installed at the end of the trunk line.

DCN1-4

T-PORT TAP

Communications Connectors Connect the network communications cables. The following connectors are

provided. DCN1-4C: XW4B-05C1-H1-D Straight Connector with attachment screws

DCN1-4R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws

DIN Track mounting hooks Use when mounting the Tap to a DIN Track.

2-3-5 Shielded T-branch Connectors

Use a T-branch Connector when a T-branch is required in a Network that has communications cables with shielded connectors.

Note 1. If the T-branch Connector is at the end of the trunk line, the trunk line can

be terminated by connecting a shielded connector with Terminating Resistance. (Male plug and female socket terminators are available.)

2. When the Network is powered by a single communications power supply and the current consumption is within the T-branch Connector’s specifications, the communications power supply can be connected to a T-branch

Mounting screw holes Use when screwing the T-

branch Tap to a control panel.

Terminating Resistor socket Connect a Terminating

Resistor here if the T-branch Tap is installed at the end of the trunk line.

Cables, Connectors, and Related Devices Section 2-3

Connector (using a shielded cable with a connector on one end) instead of a Power Supply Tap.

Model Remarks

DCN2-1 Shielded T-branch Connector (1 branch) with 3 micro-size (M12) con-

DCN3-11 Shielded T-branch Connector (1 branch) with 3 mini-size connectors

DCN3-12 Shielded T-branch Connector (1 branch) with 2 mini-size connectors

DCN2-1

nectors Maximum current: 3 A

Maximum current: 8 A

and 1 micro-size (M12) connector Maximum current: 8 A (3 A max. through the micro-size connector)

Mounting holes

Female Male

Thin cable

Male

Female

Thin cable

Cables with shielded micro-size (M12) connector on one end or both ends

DCN3-11

Female Male

Male

Thick cable

Cables with shielded mini-size connector on one end or both ends

DCN3-12

Female Male

Male

Thick cable

Cable with shielded mini-size connector on one end or both ends

Thin cable

Mounting holes

Thick cable

Mounting holes

Thin cable

Female

Male

Female

Cable with shielded micro-size (M12) connector on one end or both ends

Female

Thick cable

Cable with shielded mini-size

Male

Female Male

connector on one end or both ends

Female

Thick cable

Cable with shielded mini-size connector on one end or both ends

Cable with shielded micro-size (M12) connector on one end or both ends

Cables, Connectors, and Related Devices Section 2-3

Internal Circuitry

Block Diagram

Plug CN0 (IN) Socket CN2 (OUT)

1 2 3 4 5

12345

Socket CN1 (OUT)

1 2 3 4 5

Wiring

1 2 3 4 5

Name

SHIELD

V+ V−

CAN H

CAN L

2-3-6 Flat Cable T-branch Connectors

Types of T-branch Connectors

Appearance Model Application

DCN4-TR4-1 Used together with the DCN4-BR4 or the DCN4-BR4D

to extend trunk or branch lines or to T-branch the trunk line. Can also be used to connect a DCN4-TM4 Terminating Resistor.

DCN4-BR4 Used together with the DCN4-TR4-1 to extend or

branch flat cable.

2-3-7 Power Supply Tap

In the DeviceNet system, a 24-V DC communications power supply must be supplied to the Network. The communications power supply can be supplied to the cable by connecting it to a Power Supply Tap. Use a regular node connector to connect communications cable to the Power Supply Tap, the same way that communications cables are connected to a T-branch Tap.

Note 1. If there is just one power supply to the Network and the total current con-

2. When the Power Supply Tap is connected to thin cable, the current capac-

DCN4-BR4D Used together with the DCN4-TR4-1 to branch to thin

cable.

sumption is less than 5 A, the communications power supply can be connected through a regular T-branch Tap instead of a Power Supply Tap. A Power Supply Tap must be used if there is more than one power supply connected to the Network or the total current consumption exceeds 5 A.

ity is limited to 3 A through any one of the thin cables. If two thin cables are connected, 3 A can be supplied to each cable for a total of 6 A.

Cables, Connectors, and Related Devices Section 2-3

(If two thick cables are connected, 8 A can be supplied to each cable for a total of 16 A.)

Model Remarks

DCN1-1P Includes two XW4B-05C1-H1-D Straight Connectors with attachment

screws, a terminator (attach if needed), fuses, and a ground terminal.

Communications Connectors

Internal Circuitry

CN1

V−

CN4

H'V+'

CN2

2-3-8 Terminating Resistors

In a DeviceNet Network, one Terminating Resistor must be connected to each end of the trunk line. If a Unit is at the end of the trunk line, connect one of the Terminating Resistors listed in the following table because the Units do not have built-in terminators.

There are several ways to connect a Terminating Resistor. A special Terminalblock Terminating Resistor can be connected, a resistor can be installed in the Terminating Resistor socket of a T-branch Tap or Power Supply Tap, or a shielded connector with terminating resistance can be connected to a Tbranch Connector. A Terminating Resistor is provided with T-branch Taps and Power Supply Taps. If a resistor is to be installed on a T-branch Tap or Power

Supply Tap, always use the provided Terminating Resistor.

Model Remarks

(No model number) Terminating Resistor provided with T-branch Taps and Power

Communications Power Supply (24 V DC)

V+HSL

V−'L'S'

Supply Taps (121 Ω ±1%, 1/4 W)

CN3

SV−V+

V−

V+

Name

V−

CAN L

SHIELD

CAN H

V+

DRS1-T Terminal-block Terminating Resistor (121 Ω ±1%, 1/4 W)

DRS2-1 Shielded Micro-size (M12) Connector with Terminating Resis-

tance (male plug)

DRS2-2 Shielded Micro-size (M12) Connector with Terminating Resis-

tance (female socket)

Cables, Connectors, and Related Devices Section 2-3

Model Remarks

DRS3-1 Shielded Mini-size Connector with Terminating Resistance

DCN4-TM4 Used to connect the DCN4-TR4-1.

(male plug)

DCN4-TP4D Flat Cable Power Supply Terminal Block with Terminating

Resistance When flat cable is used, communications power can be sup-

plied from the terminals on this terminal block.

2-3-9 Communications Power Supply

In a DeviceNet system, a 24-V DC communications power supply must be supplied to the Network. The communications power supply must meet the specifications listed in the following table and the AC inputs and DC outputs must be isolated.

The OMRON S82J-series and S82K-series Power Supply Units are recommended. Select a Power Supply Unit with a current capacity that can comfortably handle the total power consumption of all connected nodes and allow for future expansion if necessary.

Communications Power Supply Specifications

The communications power supply must meet the following specifications.

Item Specifications

Output voltage 24 V DC ±1% Output current 16 A max. Input fluctuation 0.3% max. Load fluctuation 0.3% max. Temperature effect 0.03%/°C max. Input voltage 100 to 1,200 V Input frequency 47 to 450 Hz Output ripple 250 mVp-p Output capacitance 7,000 µF max. Ambient temperature Operating: 0 to 60°C

Max. instantaneous output current

Overvoltage protection Must be provided. Overcurrent protection Must be provided. (max. current: 125%) Startup time Must reach 5% of final output voltage within 250 ms. Startup overshoot 0.2% max. Insulation Between output and AC power and between output

Standards Required: UL

Storage: −40 to 85°C 65 A max. (peak)

and chassis ground

Recommended: FCC Class B, CSA, TÜV, and VDE

Wiring Methods Section 2-4

Item Specifications

Ambient humidity 30% to 90% (with no condensation) Surge current capacity 10% max.

Note The current capacity of thick cable is 8 A, so up to 16 A can be supplied to the

network by supplying communications power in two directions from the power supply through thick cables. The current capacity of thin cable is limited to 3 A. Up to 6 A can be supplied to the network when communications power is supplied in two directions from the power supply through thin cables. If a thin cable is connected in one direction and a thick cable is connected in the other, the maximum current is 3 A + 8 A = 11 A total.

2-4 Wiring Methods

2-4-1 Wiring and Installing Standard Connectors

Attaching Communications Cables

Use the following procedure to prepare and connect the communications cables to the connectors.

1,2,3... 1. Strip about 30 mm of the cable sheathing, being careful not to damage the

woven shield just below the sheathing. Do not remove more than about 30 mm; removing too much of the covering can result in short circuits or allow noise into the Network.

Approx. 30 mm

2. Carefully peel back the woven shield. There is a bare shield wire under the woven shield as well as the signal lines and power lines. (The shield wire will be loose on the outside of the other lines, but it is stiffer than the woven shield and easy to identify by touch.)

Shield wire

3. Cut away the exposed woven shield, remove the aluminum tape from the signal and power lines, and strip the sheath from the signal and power lines to the proper length for the crimp terminal connectors. Twist together the stranded wires of each signal and power lines.

Strip proper length for the terminals being used.

Wiring Methods Section 2-4

4. Attach the crimp terminals (solderless pin terminals) to the lines and use the proper Crimping Tool to crimp the terminal securely.

Crimp terminal

Note We recommend using the following crimp terminals and crimping tools.

• PHOENIX CONTACT, AI-series Crimp Terminals

Cable type XW4B-05C1-

Using thin cables

Using thick cables

Signal lines AI0.25-6YE AI0.25-8YE AI0.25-8YE CRIMPFOX Power lines AI0.5-6WH AI0.5-10WH AI0.5-10WH Signal lines A1-6 A1-10 A1-10 Power lines AI 2.5-8BU AI 2.5-10BU AI 2.5-10BU

H1-D

XW4B-05C1-

V1R-D

MSTB2.5/5-

ST-5.08AU

XW4B-05C4-

TF-D

XW4B-05C4-

T- D

XW4G-

05C1-H1-D

XW4G-

05C4-TF-D

Crimping

Tool

ZA3

5. Cover the end of the cable with electrical tape or heat-shrink tubing as shown in the following diagram.

6. Check that the connector is oriented correctly and the wire set screws are loose enough to insert the wires. Insert the power lines, signal lines, and shield wire in the correct holes in the following order (top to bottom): black, blue, shield, white, and red.

• Straight Connectors With straight connectors, the wiring direction and connector insertion direction are the same. Use the straight connectors if there is sufficient wiring space.

Straight Connector with Attachment Screws

Attachment screw

Black (V

Blue (CAN L)

Shield

−)

Wiring direction

Electrical tape or heat-shrink tubing

Straight Connector without Attachment Screws

Insertion direction

Black (V

Blue (CAN L)

Shield

−)

Wiring direction

Insertion direction

White (CAN H)

Red (V+)

White (CAN H)

Red (V+)

• Right-angle Connectors With right-angle connectors, the wiring direction and connector inser-

Wiring Methods Section 2-4

tion direction are perpendicular. Use right-angle connectors if there is insufficient wiring space in front of the DeviceNet connectors and the connectors must be wired from the side.

Attachment

Insertion direction

White (CAN H)

screw

Red (V+)

Wiring direction

Black (V

−)

Blue (CAN L)

Shield

Connectors without set screws do not require lines to be secured with screws as with previous connectors. Push up the orange lever and then insert each line into the back of each hole. Release the orange lever after inserting the lines, and gently pull each line to check that it is securely connected to the connector.

Red (V+)

White (CAN H)

Shield

Blue (CAN L)

Black (V−)

Note (a) Be sure that the wire set screws are sufficiently loosened before

attempting to insert the lines. If these screws are not loose, the wires will go into the space in the back of the connector and cannot be locked with the set screws.

(b) There are colored stickers provided on the Master Unit and Slave

Units that match the colors of the lines to be inserted. Be sure that the colors match when wiring the connectors.

Color Signal Symbol

Black Communications power supply, negative V− Blue Signal line, Low CAN L

--- Shield S White Signal line, High CAN H Red Communications power supply, positive V+

7. Tighten the connector’s set screws on the wires using a slotted screwdriver that doesn’t taper at the tip, which will prevent the screwdriver from binding in the connector. Tighten the screws to a torque of between 0.25 and

0.3 N

⋅m

Wiring Methods Section 2-4

When using thick cable, provide some slack in the cable so that the connectors do not pull out because of tension on the cable.

Slotted screwdriver that does not taper at the tip

Note The OMRON XW4Z-00C and PHOENIX CONTACT SZF-1 screwdrivers are

suitable for tightening the DeviceNet connector’s set screws. Refer to 2-3 Cables, Connectors, and Related Devices for contact information to order the PHOENIX CONTACT screwdriver. The following diagram shows the dimensions of the XW4Z-00C screwdriver.

Side Front

Multi-drop Wiring Methods

3.5 mm0.6 mm

Multi-drop Connection with a Standard Connector (Thin Cables Only)

When thin cable is being used, a multi-drop connection can be made by inserting each pair of wires into a single same pin terminal and crimping them together.

Note We recommend using the following PHOENIX CONTACT terminal for this

type of multi-drop connection.

• PHOENIX CONTACT AI-TWIN Series

Model Crimping Tool

AI TWIN2 × 0.5-8WH (for thin cable) CRIMPFOX UD6

Multi-drop Connection with a Multi-drop Connector

The following OMRON Multi-drop Connectors (sold separately) can be used to make a multi-drop connection with either thin or thick cable.

• XW4B-05C4-T-D Straight Multi-drop Connector without Attachment Screws

Wiring Methods Section 2-4

• XW4B-05C4-TF-D Straight Multi-drop Connector with Attachment Screws

• XW4G-05C4-TF-D Straight Multi-drop Clamp Connector with Attachment Screws

In some cases, the Multi-drop Connector cannot be used because there is not enough space and other Units or connectors get in the way. Refer to Multi- drop Connectors on page 51 for a list of compatible Units.

Note 1. Before connecting the communications cables, turn OFF the power sup-

plies to the PLC and all Slaves, as well as the communications power supplies.

2. Use crimp terminals for wiring. Connecting bare twisted wires can cause the cables to come OFF, break, or short circuit and result in incorrect operation and possibly damage to the Units.

3. Use the proper crimping tool and crimping methods when attaching crimp terminals. Consult the manufacturer of the tools and terminals you are using. Inappropriate tools or methods can result in broken wires.

4. Be extremely careful to wire all signal lines, power lines, and shielding wire correctly.

5. Tighten all set screws firmly. Tighten signal lines, power lines, and shielding wire to a torque of 0.5 to 0.6 N of 0.4 to 0.5 N

6. Wire the signal lines, power lines, and shielding wire so that they do not become disconnected during communications.

7. Do not pull on the communications cables. They may become disconnected or wires may break.

8. Allow a sufficient bending radius in cable turns so that communications cables are not bent too sharply. The Cables may become disconnected or wires may break if the cables are bent too far.

9. Never place objects on top of the communications cables. They may break.

10. Double-check all wiring before turning ON the power supply.

⋅m.

⋅m. Tighten connector screws to a torque

2-4-2 Attaching Flat Cable Connectors

Flat Connector Plug Component Names

Black

Cable identification label (Flat cable: Black, blue, white, red)

Wiring Methods Section 2-4

1,2,3... 1. Cut the cable.

Cut the cable perpendicular to the length. To prevent short-circuits, cut the cable with a sharp tool, such as wire cutters, and make sure that no whiskers are left on the wires.

2. Attach the cable. Align the indications on the cable identification label with the cable colors and insert the cable. The cover is translucent, so it is possible to confirm that the cable has been inserted all the way in.

Confirm that the cable has been inserted up to this position.

3. Pressure-weld the connector. Use the DWT-A01 Pliers to pressure-weld the connectors.

1) As shown in the following diagram, align the center of the connector cov-

er (see arrows) with the center of the pressure-welding block on the Pliers.

Pliers Connector cover

2) Squeeze firmly on the Pliers until the lock on the connector clicks into

place.

Note 1. Do not pressure-weld the connector cover at the edges.

2. Do not pressure-weld the connector cover at the back of the pressurewelding block.

3. Set the connector in the correct orientation.

OK NG

Wiring Methods Section 2-4

3. After attaching the cable, confirm that it is properly pressure-welded as

shown below.

There should be no gaps here.

2-4-3 Attaching Shielded Connectors

Use the following procedure to attach shielded connectors to the communications cables. This section explains the basic attachment procedure. For more details on connector assembly methods, refer to XS2 in the Sensor I/O Con- nectors Catalog (G05) (The connectors used for DeviceNet communications cables use screws to secure the wires.)

1,2,3... 1. Insert the cable into the cap, cable clamp, water-tight bushing, and cover.

2. Prepare the communications cable, referring to the procedure described under Attaching Communications Cables in 2-4-1 Wiring and Installing Standard Connectors.

3. When using shielded connectors, remove approximately 20 mm of the cable covering, and strip approximately 8 mm of the sheath from the signal lines and power lines (refer to the following diagram). Do not remove too much of the covering. Removing excessive cable covering may result in a short circuit or the expected water-tight capabilities will not be provided.

4. Insert the signal lines, power lines and shield wire into the contact block holes, making sure the terminal numbers are correct.

5. Tighten the contact block’s line set screws on each of the lines. Tighten the set screws to a torque of between 0.15 and 0.2 N driver.

Note Use the OMRON XW4Z-00B Screwdriver to tighten the line set screws of the

shielded connector for custom cable assembly.

⋅m using a special screw-

Wiring Methods Section 2-4

6. Insert the contact block into the cover, aligning the positioning key (triangular mark) on the contact block with the triangular mark on the cover.

7. Tighten the cover lock so that the contact block and cover are firmly joined. Tighten to a torque of between 0.39 and 0.49 N

⋅m.

8. Tighten the cap to the cover firmly, making sure the water-tight bushing and cable clamp are inserted properly. Tighten to a torque of between 0.39 and 0.49 N

⋅m.

2-4-4 Connecting to T-branch Taps and Nodes

Align the cable connector with the socket on the T-branch Tap or Node as shown in the following diagram and fully insert the connector into the socket. Tighten the set screws to secure the connection. Tighten the screws to a torque of between 0.25 and 0.3 N

• Example 1: Connecting to a DCN1-1C T-branch Tap

T-branch Tap Connector

Attachment screw

⋅m.

Cable Connector

• Example 2: Connecting to a CV-series Master Unit

Node (Master) Connector

Attachment screw

Cable Connector

Note 1. To avoid damaging the cable or breaking wires, leave some slack in the ca-

ble so that it won’t be pulled too hard or bent too sharply when connecting. Also, never put heavy objects on top of the cable.

2. The orientation of the node connector is different in some other Units. Verify that the cable’s wire colors match the colors on the label next to the node connector.

Wiring Methods Section 2-4

2-4-5 Flat Cable I (Standard)

Preparing DCN4-TR4-1 Flat Connector Sockets

Component Names

Cover Housing

Cable labels (Flat cable: black, blue, white, and red)

Cable confirmation slot

Black

■ Cutting the Cable (when Extending Cable or Connecting Terminating

Resistance)

Cut the cable perpendicular to the length. To prevent short-circuits, cut the cable with a sharp blade, such as wire cut-

ters, and be sure that there are no whiskers on the wires.

■ Setting the Cable Stopper (when Extending Cable or Connecting

Terminating Resistance)

A stopper must be set in advance when extending a line or connecting terminating resistance.

Close the cover, secure the hooks, and then press down on the cable stopper until it clicks into place.

Cable stopper

Press until you hear the stopper clicks and remains in place.

Wiring Methods Section 2-4

■ Attaching the Cable

T-branch Connections

1,2,3... 1. Align the cable labels and cable colors and insert the cable into the cover.

2. Hold the cable and secure it with the hooks.

Line Extensions and Terminating Resistance

Insert the cable end all the way into a cover with the cable stopper already set.

Location of cable stopper

■ Attaching the Housing

Confirm that the cable labels and cable colors match and then temporarily secure the housing to the cover.

Housing

Note The housing cannot be removed from the cover once it has been attached.

The connector may be damaged if the housing is forcefully removed.

■ Pressure-welding the Connector

The connector is pressure-welded using the DWT-A01 Pliers.

Wiring Methods Section 2-4

gap

1,2,3... 1. As shown below, align the center (see arrows) of the connector cover with

the center of the pressure-welding block on the Pliers.

Pliers Connector cover

2. Squeeze firmly on the Pliers until the lock on the connector clicks into place.

Note (1) Do not pressure-weld the connector cover at the edges.

(2) Do not pressure-weld the connector cover at the back of the pressure-

welding block.

(3) Set the connector in the correct orientation.

OK NG

3. After attaching the cable, confirm that it is properly pressure-welded as shown below.

Be sure the connector is locked on both the left and right sides.

Be sure there are no

Preparing DCN4-BR4 Flat Connector Plugs

Component Names

Cable labels

Black

(Flat cable: black, blue, white, and red)

s here.

Lock lever

■ Cutting the Cable

Cut the cable perpendicular to the length.

Wiring Methods Section 2-4

To prevent short-circuits, cut the cable with a sharp blade, such as wire cutters, and be sure that there are no whiskers on the wires.

■ Attaching the Cable

Align the cable labels and cable colors and insert the cable. Confirm that the cable is inserted all the way to the back. (The cover is semi-

transparent.)

Insert the cable to this point.

■ Insert the cable to this point.

The connector is pressure-welded by using the DWT-A01 Pliers.

1,2,3... 1. As shown below, align the center (see arrows) of the connector cover with

the center of the pressure-welding block on the DWT-A01 Pliers.

Pliers

Connector cover

2. Squeeze firmly on the Pliers until the lock on the connector clicks into place.

Note (1) Do not pressure-weld the connector cover at the edges.

(2) Do not pressure-weld the connector cover at the back of the pressure-

welding block.

(3) Set the connector in the correct orientation.

Wiring Methods Section 2-4

3. After attaching the cable, confirm that it is properly pressure-welded as shown below.

Be sure there are no gaps here.

Preparing and Attaching a DCN4-BR4D Thin Cable-Flat Cable Conversion Connector

Component Names

Cable labels

Black

Lock lever

■ Cutting the Cable

Use the following procedure to prepare and connect the communications cables to the connectors.

(Flat cable: black, blue, white, and red)

1,2,3... 1. Strip about 30 mm of the cable sheathing, being careful not to damage the

woven shield just below the sheathing. Do not remove more than about 30 mm; removing too much of the covering can result in short circuits or allow noise into the Network.

Approx. 30 mm

Shield wire

3. Cut away the exposed woven shield, remove the aluminum tape from the signal and power lines, and remove the shield wire. Twist together the stranded wires of each signal and power lines.

4. Wrap the cable with vinyl tape or heat-shrink tubing.

Vinyl tape or heat-shrink tubin

Wiring Methods Section 2-4

■ Attaching the Cable

Align the indications on the cable identification label with the cable colors and insert the cable. The cover is translucent, so it is possible to confirm that the cable has been inserted all the way in.

Confirm that the cable has been inserted up to this position.

■ Pressure-welding the Connector

Use the DWT-A01 Pliers to pressure-weld the connector.

1,2,3... 1. As shown in the following diagram, align the center of the connector cover

(see arrows) with the center of the pressure-welding block on the Pliers.

Pliers

Connector cover

2. Squeeze firmly on the Pliers until the lock on the connector clicks into place.

Note (1) Do not pressure-weld the connector cover at the edges.

(2) Do not pressure-weld the connector cover at the back of the pressure-

welding block.

(3) Set the connector in the correct orientation.

NGNG

3. After attaching the cable, confirm that it is properly pressure-welded as shown below.

Be sure there are no gaps here.

Wiring Methods Section 2-4

2-4-6 Connecting Shielded (Environment-resistive) Cables

Check that the connector (plug or socket) on the Shielded T-branch Connector or Environment-resistive Slave is the opposite of the connector (socket or plug) on the Cable, align the connectors, and insert the cable connector.

Insert the connector fully and tighten the connector by hand. Tighten Microsize Connectors to a torque of between 0.39 and 0.49 N Connectors to a torque of between 0.7 and 0.8 N

⋅m.

⋅m. Tighten Mini-size

Note (1) Tighten the connector ring securely by hand. If the connector is not tight-

ened sufficiently, it will not provide the specified level of environmental resistance and might become loose due to vibration. Do not use a tool such as pliers to tighten the connector, because the tool can damage the connector.

(2) To avoid damaging the cable or breaking wires, leave some slack in the

cable so that it won’t be pulled too hard or bent too sharply when connecting. Also, never put heavy objects on top of the cable.

(3) The location of the connector and the type of connector (plug or socket)

varies from device to device. Check the location and type of connector required before wiring the devices.

2-4-7 Wiring the Communications Power Supply

There are three ways to wire the communications power supply. The following table shows applications where each method can be used.

Method Number of com-

munications

power supplies

in Network

12 or

Connecting to a T-branch Tap

Connecting to a T-branch Connector

Connecting to a Power Supply Ta p

Yes No Yes Yes No Attach V+ and V−

Ye s N o Ye s Ye s

Yes Yes Yes Yes Yes Wire V+ and V−

Total current

consumption

(See note 1.)

Less

3 A to

than

3 A

(See note 2.)

5 A

than

Ye s (See note 2.)

Connection

method

wires to a connector. Use just the V+ and

V− from a thin cable with shielded connector on one end.

wires to terminal block.

Note (1) The maximum current is 5 A for a T-branch Tap and 8 A for a T-branch

Connector (3 A through a micro-size connector). Determine the current consumption for all nodes in both directions.

(2) A DCN2-1 T-branch Connector (for thin cable only) cannot be used be-

cause the maximum current is 3 A. Also, when using a DC3-12 T-branch Connector that can connect to thin cable and thick cable, do not exceed 3 A through the thin cable.

Wiring Methods Section 2-4

Connecting to a T-branch Tap

Insert the communications power supply lines (V+ and V− wires) to the connector holes where the communications cable’s V+ (red) wire and V wire are normally connected, as shown in the following diagram.

To communications

Trunk line Trunk line

power supply (24 V DC)

Shield

V+

V−

T-PORT TAP

DCN1-3C

− (black)

Branch line

Connecting to a T-branch Connector

Connect the communications power supply lines (V+ and V (red) wire and V

− (black) wire of a communications cable connected to the T-

− wires) to the V+

branch Connector, as shown in the following diagram. This example shows a DCN2-1 T-branch Connector, but the connection method is the same for other T-branch Connectors.

T-branch Connector

Trunk line Trunk line

−)

Black (V

To V

To F G

To V+

Red (V+)

−

Communications power supply (24 V DC)

Cable with shielded connector (male plug) on one end

Insulate the blue and white signal wires.

Shield wire

Connecting to a DCN1-1P Power Supply Tap

Insert the communications power supply lines to the terminal block provided for the communications power supply input, as shown in the following diagram.

Trunk line

Shield wire

V−

V+

To communications power supply (24 V DC)

Wiring Methods Section 2-4

Note Use a separate power supply for DeviceNet communications. The power sup-

ply can be shared, however, if noise interference is not generated by the internal circuit power supply, Sensor power supply, or other source.

Note The following cable crimp terminals are recommended.

• Phoenix Contact, AI Series

Wire size Crimp

terminal

AWG24 AI 0.25-6BU CRIMPFOX AWG22 AI 0.34-6TQ AWG20 AI 0.5-6WH AWG18 AI 0.75-6GY AWG16 AI 1.5-6BK

Crimping Tool

ZA3

2-4-8 Connecting the Terminating Resistors (Terminators)

Use any of the following methods to terminate the ends of the trunk line.

Connecting to a T-branch Tap or Power Supply Tap

Connect a Terminating Resistor to the Tap. A Terminating Resistor is provided with each OMRON T-branch Tap or Power

Supply Tap. Insert the Terminating Resistor in the T-branch Tap as shown in the following diagram. The resistor can face in either direction.

Terminating Resistor

Trunk line

Branch line

T-branch Tap

Terminating Resistor

T-branch Ta p

Connecting to a T-branch Connector

Connect one of the following terminators (Connector with Terminating Resistance) to a T-branch Connector at the end of the trunk line.

Terminator model Description

DRS2-1 Micro-size (M12) Connector (male plug) DRS2-2 Micro-size (M12) Connector (female socket) DRS3-1 Mini-size Connector (male plug)

The Terminators have a built-in Terminating Resistor. These Terminators can be used with T-branch Connectors only.

Tighten the Terminators securely by hand. Tighten a Micro-size Terminator to a torque of between 0.39 and 0.49 N torque of between 0.7 and 0.8 N

⋅m. Tighten a Mini-size Terminator to a

⋅m.

Wiring Methods Section 2-4

This example shows a DCN2-1 T-branch Connector, but the connection method is the same for other T-branch Connectors.

T-branch Connector

Trunk line

Terminator

Branch line

Connecting to a Terminal Block

When a node is connected directly to the end of the trunk line and there isn’t enough space to connect a T-branch Tap, a Terminal-block Terminating Resistor can be connected with a multi-drop.

A 121

Ω terminating resistor is built into the DRS1-T Terminal-block Terminat-

ing Resistor. To connect the cable to the Terminating Resistor, attach crimp terminals to the signal wires and securely screw the terminals to the Terminalblock Terminating Resistor.

Note Use the DeviceNet cable for the connection to the DRS1-T Terminal-block Ter-

minating Resistor and keep the cable length less than 1 m.

Trunk line

Node at end of trunk line

Insulate the power wires with tape or heat-shrink tubing.

Black (V

−)

Red (V+)

1 m max.

Node

Terminal-block Terminating Resistor

White (CAN H)

Blue (CAN L)

Use standard M3 crimp terminals and tighten to a torque of between 0.3 and

0.5 N

⋅m.

6.0 mm max.

!Caution To avoid damaging the cable or breaking wires, leave some slack in the cable

so that it won’t be pulled too hard or bent too sharply when connecting. Also, never put heavy objects on top of the cable.

Flat Cable

Attach a DCN4-TM4 Terminating Resistor to the DCN4-TR4-1 Flat Connector Socket connected to Communications Cable.

Omron DEVICENET OPERATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual

DeviceNet

Notice:

About this Manual:

Read and Understand this Manual

PRECAUTIONS

1 Intended Audience

2 General Precautions

3 Safety Precautions

4 Operating Environment Precautions

5 Application Precautions

1-1 DeviceNet Network Features

1-2 DeviceNet-compatible Devices

1-3 Communications Specifications

1-4 Basic Operating Procedures

2-1 Network Configuration Overview

2-2 Network Configuration

2-3 Cables, Connectors, and Related Devices

2-4 Wiring Methods