Omron 3G3RV-PDRT2, 3G3MV-PDRT2 USERS MANUAL

Cat. No. I539-E1-02

USER’S MANUAL

DeviceNet Communications Unit

MODEL 3G3MV-PDRT2

(For SYSDRIVE 3G3MV Multi-function Compact Inverters)

DeviceNet Communications Card

MODEL 3G3RV-PDRT2

(For SYSDRIVE 3G3RV and 3G3FV High-function General-purpose Inverters)

Thank you for choosing a 3G3MV/3G3RV Series Inverter and DeviceNet Communications
Unit. This manual describes the specifications and operating methods of the DeviceNet Com­munications Unit used for exchanging data between an Inverter and a Programmable Control­ler. Specifically, it describes the operation methods, communications methods, and data
setting methods of the 3G3MV-PDRT2 DeviceNet Communications Unit and 3G3RV-PDRT2
DeviceNet Communications Card. Proper use and handling of the product will help ensure
proper product performance, will lengthen product life, and may prevent possible accidents.
Please read this manual thoroughly and handle and operate the product with care.
For details about the 3G3MV Inverter and DeviceNet communications system, refer to the fol­lowing reference manuals.

Inverter Manuals
DeviceNet Manuals

1.To ensure safe and proper use of the OMRON Inverters, please read this USER’S MANUAL
(Cat. No. I539-E1) to gain sufficient knowledge of the devices, safety information, and precau­tions before actual use.

2.The products are illustrated without covers and shieldings for closer look in this USER’S MAN­UAL. For actual use of the products, make sure to use the covers and shieldings as specified.

3.This USER’S MANUAL and other related user’s manuals are to be delivered to the actual end
users of the products.

4.Please keep this manual close at hand for future reference.

5.If the product has been left unused for a long time, please inquire at our sales representative.

NOTICE

1.This manual describes the functions of the product and relations with other products. You
should assume that anything not described in this manual is not possible.

2.“PLC” in this manual refers to the SYSMAC CS/CJ-series, C200HX/HG/HE, and CV-series
Programmable Controllers that can be connected to a DeviceNet System. (C200HS Program­mable Controllers support only the remote I/O function.)

3.Although care has been given in documenting the product, please contact your OMRON rep­resentative if you have any suggestions on improving this manual.

4.The product contains potentially dangerous parts under the cover. Do not attempt to open the
cover under any circumstances. Doing so may result in injury or death and may damage the
product. Never attempt to repair or disassemble the product.

5.We recommend that you add the following precautions to any instruction manuals you prepare
for the system into which the product is being installed.

• Precautions on the dangers of high-voltage equipment.

• Precautions on touching the terminals of the product even after power has been turned
off. (These terminals are live even with the power turned off.)

6.Inverter and Option Unit wiring and Digital Operator operations must be performed by some­body with a specialist knowledge of electrical systems.

7.The individual life expectancies of the Inverter's internal components must be considered. Per­form maintenance, such as Unit replacement, appropriate for the operating conditions.

8.Specifications and functions may be changed without notice in order to improve product per­formance.

Items to Check Before Unpacking

Check the following items before removing the product from the package:

• Has the correct product been delivered (i.e., the correct model number and specifications)?

• Has the product been damaged in shipping?

• Are any screws or bolts loose?

• Have all accessories been delivered together with or attached to the product?

USER’S MANUAL

DeviceNet Communications Unit

MODEL 3G3MV-PDRT2

(For SYSDRIVE 3G3MV Multi-function Compact Inverters)

DeviceNet Communications Card

MODEL 3G3RV-PDRT2

(For SYSDRIVE 3G3RV and 3G3FV High-function General-purpose Inverters)

Notice:

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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. The abbreviation “PC,” however, is used 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 operation of the product.

 OMRON, 2003

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

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

■ General Precautions

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

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

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

■ Transportation, Installation, Wiring, and Maintenance Precautions

!WARNING Do not touch the conductive parts such as internal PCBs or terminal blocks while

power is being supplied. Doing so may result in electrical shock.

!WARNING Turn ON the input power supply only after mounting the front cover, terminal cov-

ers, bottom cover, Operator, and optional items. Leave them mounted in place
while power is being supplied. Not doing so may result in electrical shock, mal­function, or damage to the product.

!WARNING Wiring, maintenance, or inspection must be performed by authorized personnel.

Not doing so may result in electrical shock or fire.

!WARNING Wiring, maintenance, or inspection must be performed after turning OFF the

power supply, confirming that the CHARGE indicator (or status indicators) is OFF,
and after waiting for the time specified on the Inverter front cover. Not doing so
may result in electrical shock.

!WARNING Do not damage, pull on, apply stress to, place heavy objects on, or pinch the

cables. Doing so may result in electrical shock, operation stoppage, or burning.

!WARNING Install devices to stop operation as required to ensure safety. Equipment damage

may result. This is particularly important when operation is set to continue for
communications errors because the Inverter will continue operation.

!WARNING Do not attempt to disassemble or repair the Unit. Doing either of these may result

in electrical shock, injury, or damage to the product.

!Caution Do not store, install, or operate the product in the following places. Doing so may

result in electrical shock, fire or damage to the product.

• 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 exposure to combustibles.

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

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

• Locations subject to shock or vibration.

!Caution Do not allow foreign objects to enter inside the product. Doing so may result in fire

or malfunction.

!Caution Do not apply any strong impact. Doing so may result in damage to the product or

malfunction.

!Caution Be sure to wire correctly and securely. Not doing so may result in injury or damage

to the product.

!Caution Be sure to firmly tighten the screws on the terminal block. Not doing so may result

in fire, injury, or damage to the product.

!Caution Carefully handle the product because it uses semiconductor elements. Careless

handling may result in malfunction.

!Caution Take appropriate and sufficient countermeasures when installing systems in the

following locations. Not doing so may result in equipment damage.

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

• Locations subject to strong electromagnetic fields and magnetic fields.

• Locations subject to possible exposure to radioactivity.

• Locations close to power supplies.

■

Operation and Adjustment Precautions

!Caution Do not carelessly change Inverter's settings. Doing so may result in injury or dam-

age to the product.

!Caution Install devices to stop operation as required to ensure safety. Equipment damage

may result. This is particularly important when operation is set to continue for
communications errors because the Inverter will continue operation.

!Caution Be sure to perform the setting switch settings correctly and confirm the settings

before starting operation. Not doing so may result in malfunction or damage to the
product.

■ Reference Manuals

Information on connected devices is required to operate the DeviceNet Communications Unit/Card.
Refer to the following manuals for information on related products.

Inverter Manuals

Name Cat. No.

SYSDRIVE 3G3MV Multi-function Compact Inverters
User’s Manual

SYSDRIVE 3G3RV High-function General-purpose
Inverters User’s Manual

SYSDRIVE 3G3FV High-function General-purpose
Inverters User’s Manual

Note Refer to the user’s manual for the Inverter for information on Inverter operation.

I527

I532

I516

DeviceNet Manuals

Name Cat. No.

DeviceNet Operation Manual W267
DeviceNet Configurator Operation Manual (Version 2.@) W382
CS/CJ Series DeviceNet Unit Operation Manual W380
DeviceNet DRT2 Series Slaves Operation Manual W404

Note Refer to the DeviceNet Operation Manual for details on the DeviceNet network.

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.

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.

Table of Contents

Chapter 1. Functions and System Configuration . . . . . . . . . . . . . . . 1-1

1-1 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-2 Overview of Smart Slave Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1-3 Comparison to Earlier Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

1-4 DeviceNet Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

1-5 DeviceNet System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Chapter 2. Example System Startup . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-1 Basic Procedures and Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2-2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2-3 Setting and Wiring Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

2-4 Starting Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10

2-5 Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Chapter 3. Setup and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-1 Nomenclature and Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

3-2 Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3-3 Communications Line Noise Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

3-4 Conformity to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Chapter 4. SYSDRIVE Inverter Settings . . . . . . . . . . . . . . . . . . . . . 4-1

4-1 SYSDRIVE 3G3MV Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4-2 SYSDRIVE 3G3RV and 3G3PV Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

4-3 SYSDRIVE 3G3FV Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Chapter 5. Remote I/O Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-1 Overview of Remote I/O Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5-2 Switching the Remote I/O Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

5-3 Basic Remote I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

5-4 Standard Remote I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

5-5 Special Remote I/O Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5-6 Control Remote I/O Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

5-7 Unit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

Chapter 6. Message Communications . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-1 Overview of Message Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6-2 Sending Messages from an OMRON PLC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6-3 Overview of Messages and Responses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6-4 Motor Data Objects: Class 28 Hex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

6-5 Control Supervisor Objects: Class 29 Hex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6-6 AC/DC Drive Objects: Class 2A Hex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6-7 Reading and Writing Parameters: Class 64 Hex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Table of Contents

Chapter 7. Configurator Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7-1 Basic Configurator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

7-2 Smart Slave Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7-3 Edit Device Parameters Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-48

7-4 Monitor Device Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-55

7-5 Maintenance Information Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-63

Chapter 8. Communications Errors . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8-1 Communications Line Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

8-2 Message Communications Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

8-3 Special Remote I/O Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

8-4 Inverter Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

8-5 Inverter Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

Chapter 9. Communications Programs (CS-series PLCs) . . . . . . . . 9-1

9-1 Standard Remote I/O Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

9-2 Message Communications Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9-3 Special Remote I/O Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

Chapter 10. Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

10-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

10-2 Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

10-3 DeviceNet Communications Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-27

10-4 3G3MV Register Numbers, Classes, Instances, and Attributes . . . . . . . . . . . . . . . . . . . . . . . 10-30

10-5 3G3RV Register Numbers, Classes, Instances, and Attributes. . . . . . . . . . . . . . . . . . . . . . . . 10-42

10-6 3G3PV Register Numbers, Classes, Instances, and Attributes . . . . . . . . . . . . . . . . . . . . . . . . 10-66

10-7 3G3FV Register Numbers, Classes, Instances, and Attributes . . . . . . . . . . . . . . . . . . . . . . . . 10-84

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1

Chapter 1

Functions and System Configuration

1-1 Functions

1-2 Overview of Smart Slave Functions

1-3 Comparison to Earlier Models

1-4 DeviceNet Features

1-5 DeviceNet System Configuration

Functions and System Configuration

Chapter 1

1-1 Functions

The 3G3MV-PDRT2 DeviceNet Communications Unit is a DeviceNet communications interface Unit
for the SYSDRIVE 3G3MV Multi-function Compact Inverters. The 3G3RV-PDRT2 DeviceNet Com­munications Card is a DeviceNet communications interface card for the SYSDRIVE 3G3RV and
3G3FV High-function General-purpose Inverters.

The DeviceNet Communications Unit and Card are dedicated communications interface devices that
make it possible for the SYSDRIVE 3G3MV, 3G3RV, 3G3PV, and 3G3FV Inverters to communicate
with OMRON PLCs. Installing a DeviceNet Communications Unit/Card in the SYSDRIVE Inverter
allows a variety of operations to be performed from the Programmable Controller, such as monitoring
RUN/STOP and operating conditions and changing set values.

Note When a DeviceNet Communications Unit/Card is used, the RS-422/485 of the Inverter cannot

be used for communications.

■ Easy Communications

The following two functions can be used simultaneously in DeviceNet communications between the
CPU Unit of a PLC and the Inverter.

• Remote I/O Communications

I/O is automatically transferred between a Slave (SYSDRIVE Inverter) and the CPU Unit without any
special programming in the CPU Unit. (Automatically transmits Inverter control inputs such as RUN or
STOP from a PLC to the Inverter and returns operation status of the Inverter or output frequency monitor
data from the Inverter to the PLC.)

• Message Communications

Message communications are performed between a CPU Unit to which a DeviceNet (Master) Unit is
mounted and Slaves (SYSDRIVE Inverters) by executing specific instructions (such as CMND and IO­WR, depending on the model of PLC used) from the program in the CPU Unit. (Allows some parameter
setting and monitoring, Inverter output frequency, output voltage, or output current. If the remote I/O
communications is not performed, Inverter control data such as RUN or STOP can be input through this
message communications function.)

Remote I/O communications for the DeviceNet Communications Unit/Card are performed using
either 4 or 8 words allocated in the I/O Area of the PLC. The Inverter can be controlled using remote
I/O communications because the basic control I/O functions, frequency setting functions, and output
frequency monitoring functions are assigned to remote I/O. This allows the Inverter to be controlled
through simple I/O processing.

■ Communications with CS/CJ-series, C200HX/HG/HE, and CVM1/CV-

series PLCs

The DeviceNet communications system is supported by CS/CJ-series, C200HX/HG/HE(-Z) and
CVM1/CV-series Programmable Controllers. More than twice as many Inverters can be connected in
comparison to SYSMAC BUS Remote I/O Systems to support even larger control systems.

Note 1. The maximum number of nodes that can be connected to the system depends on the type

of DeviceNet (Master) Unit used, whether the message function is used, and the number of
words used by remote I/O communications. See 1-5 DeviceNet System Configuration for
further details.

1-2

Functions and System Configuration

Chapter 1

Note 2. The CS Series includes the CS1G-CPU@@H, CS1H-CPU@@H, CS1G-CPU@@(-V1), and

CS1H-CPU

@@H, CJ1H-CPU@@H, CJ1M-CPU@@, and CJ1G-CPU@@ Programmable Controllers.

CPU

@@(-V1) Programmable Controllers. The CJ Series includes the CJ1G-

The CVM1/CV Series includes the CV1000, CV2000, and CVM1 Programmable Control­lers.

Note 3. C200HS PLCs support only remote I/O communications; they do not support message com-

munications.

■ Multi-vendor Network

The DeviceNet conforms to the DeviceNet open field network specification, which means that
devices (Masters and Slaves) produced by other manufacturers can also be connected to the Net­work. The DeviceNet Communications Unit supports the DeviceNet AC/DC drive object.

■ Choice of Communications Functions

The DeviceNet Communications Unit/Card has various functions to choose from to suit the Inverter
applications.

• Supported Master Communications Methods

The DeviceNet Unit/Card supports 4 DeviceNet I/O connection methods: Poll, Bit Strobe, Cyclic, and
Change of State (COS). It is possible to set another connection method to be used simultaneously in
addition to the regular Poll connection. The COS method is a function that sends with a high priority
status only when there has been a change in the status of the Unit’s ON/OFF data, so the communica­tions volume is normally zero. The COS communication method is ideal for applications such as error
or alarm notifications.

• Remote I/O Communications

• Basic Remote I/O: These are the basic remote I/O functions defined in DeviceNet Specification.

• Standard Remote I/O: These are the factory settings for the DeviceNet Communications Unit/Card.
These settings are for DeviceNet compatibility.

• Special Remote I/O: These functions provide compatibility with earlier models (3G3MV-PDRT1­SINV1 and 3G3FV-PDRT1-SINV1).

• Control I/O Remote I/O: These remote I/O functions support the functions and arrays that control
the I/O signals of SYSDRIVE Inverters. (These are proprietary OMRON functions and are not part
of the DeviceNet specifications.)

• Unit Status: These 16 bits of data (a proprietary OMRON function) include information on the In­verter’s fault code and the status of the monitoring functions. We recommend using this remote I/O
function with the COS communications method.

• Multi-function Input Monitor: This information is the result of a logical OR between the Inverter’s ter­minal block and the control I/O remote I/O’s multi-function input signals. This function can be used
to monitor references to the various Inverter functions. Also, if a terminal block signal is set not to
function in the Inverter’s parameters, the Inverter’s terminal block can be used for sensor inputs to
the ladder program.

• Message Communications

Inverter control and monitoring are possible with DeviceNet explicit messages. (Messages conforming
to the DeviceNet AC/DC driver specifications can be used.)

The Parameter Read message (Class 64), which is a special OMRON function, can be used to read the
current value register in the Inverter. Message communications operate independently of the remote I/
O functions, so message communications and data that is not allocated to remote I/O can be used si­multaneously with the remote I/O functions.

1-3

Functions and System Configuration

Chapter 1

■ Applicable to Various System Configurations

Remote I/O communications and message communications are available as communications func­tions. Normal control inputs are controlled by the remote I/O communications function. When neces­sary, the message communications function is used to monitor each Inverter. It is possible to control
the selection of either the communications control input or local control input.

Note When connecting the DeviceNet Communications Unit/Card of the Inverter, use DCA1-5C10

Thin Cables and branch them from the T-branch Tap.

■ System Overview

Master Unit
CS1W-DRM21(-V1)
CJ1W-DRM21
C200HW-DRM21-V1
CVM1-DRM21-V1

Message communications function

CMND(490)

Reading Inverter output
current

3G3MV, 3G3RV, 3G3PV,
or 3G3FV Inverter

Remote I/O function

Output (PLC to Inverter)

n+1

Input (Inverter to PLC)

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Right­most

n

Left­most

Right­most

Left­most

Net.Ref. Net.Ctrl. Reset

0
1
2
3

Rotational speed reference rightmost bytes
Rotational speed reference leftmost bytes

Reverse/
Stop

Forward/
Stop

3G3MV-PDRT2 DeviceNet
Communications Unit
(For 3G3MV Inverters)
3G3RV-PDRT2
DeviceNet Communications
Card
(For 3G3RV, 3G3PV, and
3G3FV Inverters)

Note: T-branch wiring using

Thin Cables

Switch

Run

Reverse

Forward

Selection of either the communications control
input or local control input is possible using
Net.Ctrl./Net.Ref.

Stop

Power
supply

Motor

1-4

Functions and System Configuration

Chapter 1

1-2 Overview of Smart Slave Functions

As a Smart Slave, the DeviceNet Communications Unit/Card (3G3MV-PDRT2 or 3G3RV-PDRT2) is
equipped with new Smart Slave functions. This chapter introduces the Smart Slave functions. Refer
to 7-2 Smart Slave Functions for more details and setting/monitoring procedures.

■ Average Power Monitor Function

This function monitors the power that the Inverter supplies each hour and determines the cumulative
power usage from the hourly average. The amount of power used by the system can be obtained
without using special sensors or performing any calculations. In addition, monitoring the power
usage can help reduce energy usage and identify power consumption problems in the system.

The average power can be easily monitored from a Configurator, Programmable Terminal (NS
Series), or other operator interface.

■ Warning Torque Detection Function

This function can detect equipment errors by monitoring the output current.

Problems in the load can be detected in the Inverter’s current (torque) level. The function provides
advanced warning of an increased load caused by deterioration in the mechanical system (such as a
loose chain, low bearing oil, or worn-out equipment), so preventative maintenance can be per­formed.

Note This function generates a warning (alarm), so operation will continue.

■ Current Trace Function

This function traces (samples and records) the output current waveform to the motor. Troubleshoot­ing can be performed easily, without connecting measuring equipment. The Configurator can be
used to set the current trace’s trigger setting, set the sampling cycle, and display the current wave­form.

■ Operating Time Monitor Function

This function can perform a high-speed calculation in the Slave (independent of the ladder program)
to determine the time required for an input to go ON after a particular signal or reference goes ON.
The Slave can report (through the Unit status flags) when the operating time exceeds the SV set in
the Slave.

■ Cumulative ON Time Monitor Function

This function totals the time that one of the Inverter’s control I/O terminals is ON. For example, if the
RUN output’s ON time is totaled, it is possible to calculate the Inverter’s operating time and monitor
equipment operating time without using the ladder program.

1-5

Functions and System Configuration

Note The input from the Inverter’s control terminal block is ORed with the input from DeviceNet com-

munications, so the input is considered ON when either input source is ON. For example, when
either the RUN/STOP signal is input from the control terminal block or the input is being
received from DeviceNet communications, the corresponding multi-function input terminal is
considered as ON and the ON time is added.

■ Contact Operations Monitor Function

This function counts the number of times that one of the Inverter’s control I/O terminals goes ON/
OFF. The number of ON/OFF operations can be useful in maintenance, e.g., it can indicate when a
connected device needs to be replaced.

Note The input from the Inverter’s control terminal block is ORed with the input from DeviceNet com-

munications, just as it is in the Cumulative ON Time Monitor Function.

■ Conduction Time Monitor Function

Totals and records the time that power is supplied to the Slave’s internal circuit power supply. The
Slave can report (through the Unit status flags) when the cumulative ON time reaches the SV set in
the Slave. The DeviceNet Communications Unit/Card has three set values that can be set indepen­dently for the following three time monitoring functions.

Chapter 1

• Main Unit operating time

• Fan operating time

• Electrolytic capacitor operating time

Since the fan operating time and electrolytic capacitor operating time are used to indicate when
those parts need to be replaced, these monitoring times can be reset to zero (with an operation in
the Configurator’s Device Monitor Window).

■ Baud Rate Auto-detection

In earlier Slaves it was necessary to set the baud rate with a DIP switch on the Slave, but it isn’t nec­essary to set the baud rate for Smart Slaves. The baud rate is automatically set to match the Mas­ter’s baud rate.

■ Network Power Supply Voltage Monitor Function

The network power supply values (present value, maximum value, and minimum value) can be
recorded in the Slave. In addition, the Slave can report (through the Unit status flags) when the volt­age drops below the SV (monitor voltage) set in the Slave.

■ Unit Comment Function

An user-defined name can be set for each Unit and the names can be stored in the Slaves.

■ Connected Device Comment Function

User-defined names can be set for the motor connected to the Inverter and devices connected to
control I/O terminals, and those names can be stored in the Inverter.

1-6

Functions and System Configuration

■ Communications Error Log Monitor Function

The error status (communications error source code and communications power supply voltage at
the time) for the last four communications errors can be recorded in the Slave.

■ Last Maintenance Date (Maintenance Function)

The date of the last maintenance can be written in the Unit.

■ Parameter Setting Function

The Inverter’s user parameters can be set with the Configurator. There are two ways to set the
parameters, as follows:

• Several of the major parameters can be displayed and set.

• An individual parameter’s Instance/Attribute can be specified and set.

Chapter 1

1-7

Functions and System Configuration

Chapter 1

1-3 Comparison to Earlier Models

The following table shows the functions that have been added to the DeviceNet Communications
Unit/Card (3G3MV-PDRT2 and 3G3RV-PDRT2), which are not available in the earlier DeviceNet
Communications Unit/Card (3G3MV-PDRT1-SIN

Refer to the Chapter in the “Reference” column for more details on each function.

■ Function Comparison Table

@ and 3G3FV-PDRT1-SIN@).

Category Function New Unit/Card

(@-PDRT2)

Remote I/O I/O allocation Basic I/O Supported Supported Chapter 5

Standard I/O Supported Supported
Advanced I/O Supported Supported
Control I/O Supported

(Advanced Func­tion)

Unit Status Supported

(Advanced Func­tion)

Multi-function
Input Monitor

DeviceNet
Master con­nectivity

Inverter Parameter settings Supported

Connection type Poll Supported Supported Chapter 5

Bit strobe Supported Not supported
Change of state Supported

Cyclic Supported Not supported

Connection path switching
(Selecting I/O allocation in Master’s
parameters)

Default connection path switching
(Selecting the I/O allocation in the
Slave when power goes ON)

Baud rate auto-detect
(Baud rate set automatically.)

Supported
(Advanced Func­tion)

(Advanced Func­tion)

Supported Supported

Supported
(Advanced Func­tion)

Supported Not supported Chapter 7

(Advanced Func­tion)

Earlier Unit/Card
(@-PDRT1-SIN@)

Supported

Not supported

Not supported

Not supported

Supported

Supported See note.

Reference

1-8

Functions and System Configuration

Chapter 1

Category Function New Unit/Card

(@-PDRT2)

Smart Slave
functions

Average Power Monitor Function Supported

(Advanced Func­tion)

Warning Torque Detection Function Supported

(Advanced Func­tion)

Current Trace Function Supported

(Advanced Func­tion)

Operating Time Monitor Function Supported

(Advanced Func­tion)

Cumulative ON Time Monitor Function Supported

(Advanced Func­tion)

Contact Operations Monitor Function Supported

(Advanced Func­tion)

Conduction Time Monitor Function Supported

(Advanced Func­tion)

Network Power Supply Voltage Monitor
Function

Unit Comment Function Supported Not supported
Connected Device Comment Function Supported Not supported
Communications Error Log Monitor

Function
Last Maintenance Date (Maintenance

Function)

Supported Not supported

Supported Not supported

Supported Not supported

Earlier Unit/Card
(@-PDRT1-SIN@)

Not supported Chapter 7

Not supported

Not supported

Not supported

Not supported

Not supported

Not supported

Reference

Note Refer to 7-3 Edit Device Parameters Window for details on setting parameters with the Config-

urator.
refer to 5-5 Special Remote I/O Operation for details on setting parameters with special remote
I/O.
Refer to 6-7 Reading and Writing Parameters: Class 64 Hex for details on setting parameters
with message communications.
Refer to Chapter 10 Appendices for reference data such as register numbers, which are
required when setting parameters. The information is organized by Inverter series.

■ Comparison of Installation Specifications

The installation conditions for the 3G3MV-PDRT2 have changed in comparison to those for the
3G3MV-PDRT1-SINV(1). Observe the following precautions when changing models.

• Install the Unit into a metal panel.

The EMC immunity of the 3G3MV-PDRT2 is somewhat less than that of the 3G3MV-PDRT1­SINV(1). Refer to 3-4 Conformity to EC Directives for information on electromagnetic wave coun-
termeasures.

• The installation dimension at the bottom has been increased by 7 mm.

1-9

Functions and System Configuration

Chapter 1

The 3G3MV-PDRT2 is equipped with a connector for DeviceNet connection rather than a terminal
block. The dimension of the connector that extends below the case must be added.

■ Inverter Software Versions

Supported software versions are listed in the following table.

Model Software version Release date Description

3G3MV Series,

3.7 kW and less

3G3MV Series,

5.5 kW and more

3G3RV Series VSF105081 (S5081)

3G3PV Series VSE102014 (S2014) July 2002 Supports all functions.

3G3FV Series VSG101114 (S1114) September 2002 It is not possible to force-switch the com-

VSP010027 (S0027)
and higher

VSP010026 (S0026) June 2002 Supports all functions.
VSP010025 (S0025) June 2001
VSP010024 (S0024) September 2000

VSP010105 (S0105) September 2002 Supports all functions.
VSP010104 (S0104) May 2001

and higher

VSE102013 (S2013) March 2001

VSG101113 (S1113) September 2000
VSG101043 (S1043) September 1998

June 2003 Supports all functions.

Current trace function and warning torque
detection function use increments of 0.01 A.

Current trace function and warning torque
detection function are use increments of

0.1 A for detection and display.

Current trace function and warning torque
detection function are use increments of

0.1 A for detection and display.

November 2001 Supports all functions.

Current trace function and warning torque
detection function are use increments of

0.1 A for detection and display.

Current trace function and warning torque
detection function are use increments of

0.1 A for detection and display.

mand right from the network. Specifically,
even if netref and netctrl (see Chapter 5
Remote I/O Functions) are turned ON, the
command right will not be switched to the
network. Use parameters b1-02 and b1-01
to set the command right.

There are no restrictions to other functions.

1-10

Functions and System Configuration

1-4 DeviceNet Features

■ System Configuration Example

Master by other

OMRON Master Unit OMRON Master Unit OMRON Configurator

DeviceNet Network

company

Chapter 1

OMRON Configurator

OMRON Slaves

Slaves by other company

DeviceNet Network

Slaves by other company

OMRON Slaves

■ Multi-vendor Network

OMRON Slaves

Slaves by other company

The DeviceNet conforms to the DeviceNet open field network specification, which means that
devices (Masters and Slaves) produced by other manufacturers can also be connected to the Net­work. Therefore, a wide range of field-level applications can be supported by combining valve
devices, sensors, and other devices.

■ Simultaneous Remote I/O and Message Services

Remote I/O communications to constantly exchange I/O data between the PLC and Slaves can be
executed simultaneously with message communications, to send/receive DeviceNet (Master) Unit
data as required by the application. Therefore, a DeviceNet Network can be installed to flexibly han­dle applications that require both bit data and message data. Message communications can be
achieved either by using OMRON's FINS commands or by using DeviceNet explicit messages.

1-11

Functions and System Configuration

■ Connect Multiple PLCs to the Same Network

A Configurator (sold separately) can be used to enable connection of more than one Master to the
Network, allowing message communications between PLCs and between multiple groups of PLCs
and Slaves. This allows the DeviceNet Network to be used as a common bus to unify controls while
reducing wiring.

■ Handle Multi-point Control and Line Expansions with Multi-layer

Chapter 1

Networks

A Configurator (sold separately) can be used to enable mounting more than one DeviceNet (Master)
Unit to a single PLC, allowing control of many more points. This feature can easily handle line expan­sions and other applications.

■ Free Remote I/O Allocation

A Configurator (sold separately) can be used to enable flexible allocation of I/O, i.e., in any area and
in any order. This allows I/O allocations that suit the application to simplify programming and enable
effective usage of PLC memory areas.

■ Handle Slaves with Different Response Speeds

A Configurator (sold separately) can be used to set the communications cycle time, enabling usage
of Slaves with slow response times.

■ Easily Expand or Change Lines with Various Connection Methods

Use a multi-drop trunk line, T-branch multi-drop lines, or daisy-chain drop lines. All three connection
methods can be combined to flexibly construct a Network that meets the needs of the application.

Note For connecting the DeviceNet Communications Unit of the Inverter, use DCA1-5C10 Thin

Cables and branch them from the T-branch Tap.

1-12

Functions and System Configuration

Chapter 1

1-5 DeviceNet System Configuration

1-5-1 System Configuration

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

Two types of communications are supported: 1) Remote I/O communications that automatically
transfer I/O between Slaves and the CPU Unit of a PLC without any special programming in the CPU
Unit and 2) Message communications are performed between a CPU Unit to which a DeviceNet
(Master) Unit is mounted and Slaves by executing specific instructions (such as CMND and IOWR,
depending on the model of PLC used) from the program in the CPU Unit.

A Configurator (sold separately) can be used to enable following. This allows the support of an even
larger control system.

• I/O area words can be flexibly allocated for remote I/O communications.

• More than one DeviceNet (Master) Unit can be mounted to a single PLC.

• More than one DeviceNet (Master) Unit can be connected in a single Network.

■ Fixed Allocation: Configuration without a Configurator

DeviceNet Master Unit
CS1W-DRM21(-V1)
CJ1W-DRM21
C200HW-DRM21-V1
CVM1-DRM21-V1

SYSDRIVE 3G3MV,
3G3RV, 3G3PV, or

Slave Slave Slave

CS/CJ-series PLCs: 64 nodes max. (including the Master Unit)
CV-series PLCs: 64 nodes max. (including the Master Unit)
C200HX/HG/HE PLCs: 51 nodes max. (including the Master Unit)
C200HS PLCs: 33 nodes max. (including the Master Unit)

3G3FV Inverter

3G3MV-PDRT2
DeviceNet Communications
Unit (For 3G3MV Inverters)
3G3RV-PDRT2
DeviceNet Communications
Card
(For 3G3RV, 3G3PV, and
3G3FV Inverters)

Note 1. The DeviceNet (Master) Unit occupies one node of the DeviceNet Network.
Note 2. If C200HS PLCs are used, only remote I/O communications are possible.
Note 3. If one node uses more than one word, the maximum number of nodes will be reduced by

one node for each extra word that is used. (The above numbers of nodes assume that each
node is allocated one I/O word.)

1-13

Functions and System Configuration

■ Free Allocation: Configuration with a Configurator

DeviceNet Master Unit
CS1W-DRM21(-V1)
CJ1W-DRM21
C200HW-DRM21-V1
CVM1-DRM21-V1

SYSDRIVE 3G3MV,
3G3RV, 3G3PV, or

Slave Slave Slave

3G3FV Inverter

Chapter 1

3G8F5-DRM21-E (ISA Board) or
SG8E2-DRM21-EV1 (PC Card)
Configurator

3G3MV-PDRT2
DeviceNet Communications
Unit
(For 3G3MV Inverters)
3G3RV-PDRT2
DeviceNet Communications
Card (For 3G3RV, 3G3PV,
and 3G3FV Inverters)

64 nodes max. (including the Master Unit)

Slave Slave Slave

Configurator

64 nodes max. (including the Master Unit)

Note 1. The DeviceNet (Master) Unit and Configurator each occupy one node of the DeviceNet Net-

work.

Note 2. If C200HS PLCs are used, only remote I/O communications are possible.
Note 3. The maximum number of nodes that can be connected to the Network will be limited by the

maximum number of control points of the PLC used.

1-14

Functions and System Configuration

Chapter 1

1-5-2 Configurator Overview

The Configurator is a software application run on an IBM PC/AT or compatible computer and is used
to support a DeviceNet communications system. Connection to the Network is achieved either via a
serial communications port (peripheral bus or Host Link) or by connecting the computer directly to
the DeviceNet using a hardware interface. The Configurator occupies one node on the DeviceNet
Network, but has no specific functions on the network itself. The Configurator provides the following
functions.

• Free Allocation of Remote I/O

The remote I/O allocations in the PLCs can be changed from the Configurator. I/O can be flexibly allo­cated for each node within the specified I/O areas.

• More than One DeviceNet (Master) Unit per Network

Slaves can be set for each DeviceNet (Master) Unit from the Configurator enabling communications be­tween multiple groups of PLCs and Slaves. The maximum number of nodes connected to one Network
remains at 64.

Note One Slave can be connected to no more than one DeviceNet (Master) Unit.

• More than one DeviceNet (Master) Unit per PLC

Remote I/O can be allocated for each Slave of the DeviceNet (Master) Unit from the Configurator, so
more than one DeviceNet (Master) Unit can be mounted to the same PLC.

Note In allocating Remote I/O for each DeviceNet (Master) Unit, be careful not to allow any dual

allocation.

■ Configurator Specifications

Dedicated interface --- 3G8F5-DRM21-E 3G8E2-DRM21-EV1

Software WS02-CFDC1-E Packaged with the Interface
Personal computer Desktop model or

Notebook model

Desktop model (ISA
Board)

Notebook model
(PCMCIA Card)

1-15

Functions and System Configuration

Dedicated interface --- 3G8F5-DRM21-E 3G8E2-DRM21-EV1

Operating
environ­ment

Connec­tion
method

Relation to Network Using a dedicated interface: Connect directly to DeviceNet.

Compatible OSWindows 95, 98, ME,

NT 4.0, 2000, or XP

Minimum com­puter require­ments

Dedicated
interface

Serial Connect from the computer’s COM port through a CS/CJ-series PLC.

Ethernet Connect from the computer’s Ethernet port through a CS/CJ-series

IBM PC/AT or compatible (OS requirements may be stricter than the fol­lowing.)
CPU: 166 MHz Pentium min.
Memory: 32 MB min.
Hard disk: 15 MB min. free space

Sold separately ISA Board PCMCIA Card

(This connection is possible when a CS/CJ-series DeviceNet (Master)
Unit is being used.)

PLC’s Ethernet.
(This connection is possible when a CS/CJ-series DeviceNet (Master)
Unit is being used.)

• Operates as one node on the Network, requires one node address,
and only one Configurator can be connected to the Network.

• The Configurator can be disconnected from the Network after remote I/
O has been allocated.

Using a serial or Ethernet connection:

• Possible only when a CS/CJ-series DeviceNet (Master) Unit is being
used.

• A DeviceNet node address is not required. (Connects through the
DeviceNet (Master) Unit.)

• A node address is not allocated, so the Configurator can be connected
or disconnected freely. (There are some limitations compared to a
direct DeviceNet connection through a dedicated interface. For exam­ple, the refreshing interval for PV monitoring is much slower that it is
with a direct connection.)

Windows 95, 98, ME,
or NT 4.0

Windows 95, 98, 2000,
or XP

Chapter 1

1-5-3 DeviceNet Communications Specifications

Item Specifications

Communications protocol DeviceNet
Supported connections (com-

munications)

Connection forms Combination of multi-drop and T-branch connections (for trunk and drop

Baud rate 500 Kbps, 250 Kbps, or 125 Kbps (switchable)
Communications media Special 5-wire cables (2 signal lines, 2 power lines, and 1 shield line)

1-16

• Remote I/O
Master/Slave connection (Poll, Bit-strobe, COS, or Cyclic)

• Explicit messages
Explicit connection

Both conform to DeviceNet specifications.

lines)

• Thick Cable: DCA2-5C10 (100 m)

• Thin Cable: DCA1-5C10 (100 m)