Omron Sensor Connector Terminal User Manual

Cat. No. W404-E1-07
DRT2 Series
DeviceNet Slaves
OPERATION MANUAL

DRT2 Series DeviceNet Slaves

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.
OMRON, 2002
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con­stantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.
Note Indicates information of particular interest for efficient and convenient opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
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vi
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
SECTION 1
Smart Slaves and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 DRT2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 DRT2 Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SECTION 2
Example System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2-1 Basic Procedures and Configuration Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2-2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2-3 Setting and Wiring Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2-4 Starting Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
2-5 Checking Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SECTION 3
Common Slave Specifications . . . . . . . . . . . . . . . . . . . . . . . . 31
3-1 Common Slave Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3-2 DeviceNet Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
SECTION 4 Functions of All Slaves, General-purpose Slaves,
and Environment-resistive Slaves . . . . . . . . . . . . . . . . . . . . . 47
4-1 Maintenance Mode Window and Main Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4-2 Common Slave Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4-3 Functions of General-purpose Slaves and Environment-resistive Slaves . . . . . . . . . . . . . . . 61
SECTION 5
General-purpose Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5-1 Common Specifications for General-purpose Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5-2 Connecting Communications Cables to General-purpose Slaves . . . . . . . . . . . . . . . . . . . . . 87
5-3 Mounting Terminating Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
5-4 Maintenance Information Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
5-5 Remote I/O Terminals with Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
5-6 Connector Terminals with Transistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
5-7 Screw-less Clamp Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
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TABLE OF CONTENTS
SECTION 6
Environment-resistive Slaves. . . . . . . . . . . . . . . . . . . . . . . . . 233
6-1 Common Specifications for Environment-resistive Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . 234
6-2 Connecting Communications Cables to Environment-resistive Slaves . . . . . . . . . . . . . . . . . 236
6-3 Maintenance Information Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
6-4 Advanced Environment-resistive Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
6-5 Standard Environment-resistive Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
6-6 Mounting and Wiring Environment-resistive Slaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
SECTION 7
Analog Slaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
7-1 Overview of Analog Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
7-2 Common Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
7-3 Maintenance Information Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
7-4 Analog Input Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
7-5 Analog Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .359
7-6 Temperature Input Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
SECTION 8
Communications Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
8-1 Remote I/O Communications Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444
8-2 Message Communications Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
SECTION 9
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 455
9-1 Indicators and Error Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
9-2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457
9-3 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466
Appendices
A DeviceNet Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469
B Using Another Company's Master Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
C Restrictions on Reading Total ON Time/Contact Operation Counter
for All Slaves at Once . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539
D Connectable Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .553
E Current Consumption Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563
F Precautions with Connecting Two-wire DC Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575
viii

About this Manual:

This manual describes the installation and operation of an DeviceNet Smart Slave Units 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 Smart Slave Units. 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
DeviceNet Masters Operation Manual
DeviceNet CS/CJ Series Units Operation Manual
DeviceNet DRT2 Series Slaves Operation Manual (this manual)
DeviceNet DRT1 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 C200HX/HG/HE, CVM1, and CV-series DeviceNet Master Units.
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 DRT2-series Smart Slave Units.
Describes the models, specifications, functions, operating procedures, and applications of DRT1-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
W379
W380
W404
W347
W348
Precautions provides general precautions for planning, installing, and operating the DeviceNet DRT2­series Smart Slaves and related devices.
Section 1 provides an overview of the DeviceNet DRT2-series Smart Slaves, including lists of models, and information on features that were not included in the DRT1-series Slaves.
Section 2 provides information on hardware aspects of Masters and Slaves connected to a DeviceNet Network to ensure the proper operation of the system. Included are system configuration examples, basic procedures for wiring, details on mounting and setting Master and Slave Units, procedures for connecting cables and power supplies, creating I/O tables, creating and registering scan lists, and checking operation of the system.
Section 3 provides specifications and indicator displays that are common to all Slaves. The allocation of remote I/O memory for Smart Slaves is also described here.
Section 4 describes the functions of DRT2-series Smart Slaves and their applications, including oper­ation procedures using a DeviceNet Configurator.
Section 5 provides the specifications and describes the components, terminal arrangements, basic procedures for wiring, and methods for connecting cables of General-purpose Slaves. Information on Slave settings, mounting and wiring methods are also provided separately for each Slave type.
Section 6 provides the specifications and describes the components, terminal arrangements, basic procedures for wiring, and methods for connecting cables of Environment-resistive Slaves (conforming to IP67). Information on Slave settings, mounting and wiring methods are also provided separately for each Slave type.
ix
About this Manual, Continued
Section 7 provides the specifications, terminal arrangements, mounting procedures, and connection methods of Analog I/O Terminals. Information is included on types of I/O data that can be allocated, allocation methods and procedures, and math operation processing. Setting methods using the Con­figurator are also described.
Section 8 provides information on the time required for a complete communications cycle, for an out­put response to be made to an input, to start the system, and to send messages.
Section 9 describes error processing, periodic maintenance operations, and troubleshooting proce­dures needed to keep the DeviceNet Network operating properly. We recommend reading through the error processing procedures in both this manual and the operation manual for the master being used before operation so that operating errors can be identified and corrected more quickly.
Appendix A provides lists of DeviceNet explicit messages and their basic format.
Appendix B provides information on using masters from other companies and Slave device profiles
necessary for multi-vendor applications, including information on installing EDS files.
Appendix C describes restrictions on reading the total ON time and contact operation counter for all Slaves at once.
Appendix D provides lists of standard models of DRT2-series Smart Slaves and connectable devices.
Appendix E shows the current consumptions of DRT2-series Smart Slaves.
Appendix F provides precautions for connecting two-wire DC sensors.
!WARNING Failure to read and understand the information provided in this manual may result in per-
sonal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.
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Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON representative if you have any questions or comments.
Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON­INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
xi
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
xii
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
xiii
xiv

PRECAUTIONS

This section provides general precautions for installing and using the DeviceNet Smart Slave and related devices.
The information contained in this section is important for the safe and reliable application of the DeviceNet Smart Slave. You must read this section and understand the information contained before attempting to set up or operate a DeviceNet network using DeviceNet Smart Slaves.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
6-3 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
xv
Intended Audience 1

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of 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 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.
!WARNING Input only the specified range of voltage or current to a Unit. A current or volt-
age exceeding the specified range may cause malfunction 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.
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must be provided in external control circuits.
• The PLC will turn OFF all outputs when its self-diagnosis function detects any error or when a severe failure alarm (FALS) instruction is executed. As a countermeasure for such errors, external safety measures must be provided to ensure safety in the system.
• The PLC outputs may remain ON or OFF due to deposits on or burning of the output relays, or destruction of the output transistors. As a counter­measure for such problems, external safety measures must be provided to ensure safety in the system.
• When the 24-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. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.
xviii
!WARNING The CPU Unit refreshes I/O even when the program is stopped (i.e., even in
PROGRAM mode). Confirm safety thoroughly in advance before changing the status of any part of memory allocated to Output Units, Special I/O Units, or CPU Bus Units. Any changes to the data allocated to any Unit may result in unexpected operation of the loads connected to the Unit. Any of the following operations may result in changes to memory status.
• Transferring I/O memory data to the CPU Unit from a Programming Device
• Changing present values in memory from a Programming Device
• Force-setting/-resetting bits from a Programming Device
• Transferring I/O memory files from a Memory Card or EM file memory to the CPU Unit
• Transferring I/O memory from a host computer or from another PLC on a network
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 (General-purpose Slaves)
• Locations subject to acid or chemicals (Environment-resistive Slaves).
• 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.
!Caution The operating environment of the PLC System can have a large effect on the
longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PLC System. Be sure that the operating environment is within the specified condi­tions at installation and remains within the specified conditions during the life of the system.
xix
Application Precautions 5

5 Application Precautions

Observe the following precautions when using the DeviceNet Smart Slave.
• 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.
• Provide external interlock circuits, limit circuits, and other safety circuits in addition to any provided within the PLC to ensure safety.
• Mount the Unit to a DIN Track or mount it with screws.
• 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.
• Provide circuit breakers and other safety measures to provide protection against shorts in external wiring.
• Always ground the system to 100 protect against electrical shock.
• 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, CPU Unit, Memory Cassette, or Master Unit.
• Mounting or removing Remote I/O Terminal circuit sections.
• Assembling any devices or racks.
• Setting rotary switches.
• Connecting or wiring cables.
• Connecting or disconnecting connectors.
• Do not attempt to disassemble, repair, or modify any Units.
• Be sure that all the terminal screws are tightened to the torque specified in the relevant manuals. Loose screws may cause fire, malfunction, or damage the Unit.
• Be sure that all the mounting screws and cable connector screws are tightened to the torque specified in the relevant manuals.
• Do not remove the label from a Unit before wiring. Always remove the label after completing wiring, however, to ensure proper heat dispersion.
• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals.
• Double-check all switch settings and wiring before turning ON the power supply.
• Always follow the electrical specifications for terminal polarity, communi­cations path wiring, power supply wiring, and I/O jumpers. Incorrect wiring can cause failures.
• Be sure to wire the Unit correctly.
• Be sure to wire terminals with the correct polarity.
• Be sure that the communications cable connectors and other items with locking devices are properly locked into place.
• Do not drop the Unit or subject the Unit to excessive vibration or shock. Doing so may cause malfunction or damage to the Unit.
• 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.
or less when installing the system to
xx
Application Precautions 5
• Do not apply voltages or connect loads to the Output Units in excess of the maximum switching capacity.
• Do not apply voltages to the Input Units in excess of the rated value.
• After replacing a CPU Unit or Special I/O Unit, resume operation only after transferring to the new CPU Unit or Special I/O Unit the contents of the DM Area, HR Area, and other data required for resuming operation.
• Check the user program for proper execution before actually running it with the system.
• Observe the following precautions when wiring the communications cables.
• Wire the communications cables separately from the power lines or high-tension lines.
• Do not bend the communications cables excessively.
• Do not pull on the communications cables excessively.
• Do not place objects on top of the communications cables.
• Route communications cables inside ducts.
• Confirm that the system will not be adversely affected before performing the following operations.
• Changing the operating mode of the PLC
• Setting/resetting any bit in memory
• Changing the present value of any word or any set value in memory
• Before touching a Unit, be sure to first touch a grounded metallic object in order to discharge any static build-up.
• When replacing parts, such as a relay, make sure the replacement part has the correct specifications.
• Be sure that metal filings do not enter the Unit when wiring or installing.
• Use correct parts for wiring.
• Use the specified communications cables and connectors.
• Always enable the scan list before operation.
• Before clearing the scan list of a Unit that has user-allocated remote I/O, always confirm that no errors occur after the I/O Area setting is changed to fixed allocation.
• 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.
• Do not extend connection distances beyond the ranges given in the spec­ifications.
• Although the Environment-resistive Slaves have IP67 enclosure ratings, do not used them in applications where the Slave is always submerged in water.
xxi
Conformance to EC Directives 6

6 Conformance to EC Directives

6-1 Applicable Directives
•EMC Directives
• Low Voltage Directive
6-2 Concepts
EMC Directives
OMRON devices are designed so that they comply with the related EMC Directives so that they can be more easily built into other devices or the over­all machine. The actual products have been checked for conformity to EMC Directives (see the following note). Whether the products conform to the stan­dards in the system used by the customer, however, must be checked by the customer.
EMC-related performance of the OMRON devices that comply with EC Direc­tives will vary depending on the configuration, wiring, and other conditions of the equipment or control panel on which the OMRON devices are installed. The customer must, therefore, perform the final check to confirm that devices and the overall machine conform to EMC standards.
Note Applicable EMC (Electromagnetic Compatibility) standards are as follows:
EMS (Electromagnetic Susceptibility): EN 61000-6-2 EMI (Electromagnetic Interference): EN 61000-6-4
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 V AC and 75 to 1,500 V DC meet the required safety standards for EN 61131-2.
6-3 Conformance to EC Directives
The CompoNet Master Units comply with EC Directives. To ensure that the machine or device in which a CompoNet Master Unit is used complies with EC Directives, the CompoNet Master Unit must be installed as follows:
1,2,3... 1. The CompoNet Master Unit must be installed within a control panel.
2. You must use reinforced insulation or double insulation for the DC power supplies used for the communications power supply and I/O power sup­plies.
3. CompoNet Master Units complying with EC Directives also comply with the Common Emission Standard (EN 61000-6-4). Radiated emission charac­teristics (10-m regulations) may vary depending on the configuration of the control panel used, other devices connected to the control panel, wiring, and other conditions. You must therefore confirm that the overall machine or equipment complies with EC Directives.
(Radiated emission: 10-m regulations)
xxii
SECTION 1
Smart Slaves and Features
This section provides an overview of the DeviceNet DRT2-series Smart Slaves, including lists of models, and information on features that were not included in the DRT1-series Slaves.
1-1 DRT2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-2 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 DRT2 Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-2-1 General-purpose Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-2-2 Environment-resistive Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-2-3 Analog Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-2-4 Smart Slave Feature Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1-2-5 Installing and Connecting Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1
DRT2 Features Section 1-1

1-1 DRT2 Features

1-1-1 Overview
The DRT2-series Smart Slaves can be used to collect various information that improves the operating rate of the equipment, in addition to performing basic input and output of ON/OFF signals.
A maintenance system can be configured separately from the control system. This enables a balance between control and maintenance using an existing DeviceNet network, contributing to reduced startup time, shorter recovery time when problems occur, and preventative maintenance of the equipment.
• Control System The default settings for remote I/O communications with the PLC are the same as for previous Slaves, whereby real I/O is allocated for each node address. One difference with previous Slaves is that an area for Smart Slave status information can be allocated to the Smart Slaves within the IN Area of the Master. This is in addition to real I/O. (Settings are per­formed using the Configurator or explicit messages.)
• Maintenance System The Configurator is used to read and write various types of equipment information stored in the DRT2 Slave. The same equipment information can also be read and written by sending explicit messages to the DRT2 Slave from the Master (such as a PLC or a DeviceNet Master Board mounted in a personal computer).
1-1-2 Features
Common Features
Node Addresses Set Using Rotary Switches
Automatically Detected Baud Rate
Remote I/O Communications
Network Power Supply Volt a g e M onito r
DRT2-series Slaves have the following features.
Node addresses are set using rotary switches, which are clearer than the pre­vious DIP switch settings. Node addresses can also be set from the Configu­rator.
Previous models required the baud rate to be set using the Slave's DIP switch, but Smart Slaves do not require the baud rate to be set. The Smart Slave automatically operates at the baud rate of the Master Unit.
When using default remote I/O communications from the PLC for DRT2 Slaves, only real I/O is allocated. This is the same method used by the previ­ous DRT1 Slaves.
The following status information can be allocated in addition to real I/O, in the IN Area of the Master by using the Configurator or explicit messages to make user settings (default connection path settings):
Generic Status Flags, Top/Valley Detection Timing Flags, Analog Status Flags
As part of the remote I/O function, Network power supply voltages (present, peak, and bottom values) can be recorded in the Slave. The Configurator can be used to read the information. The Slave also maintains a set value for mon­itoring the voltage, and will provide notification in the Status Area if the voltage drops below the set level.
Unit Conduction Time Monitor
2
The time that the Slave's internal circuit power is ON can be totaled and recorded. The Configurator or explicit messages can be used to read the information. The Slave also maintains a set value for monitoring the Unit's ON time, and will provide notification in the Status Area if the set time is reached.
DRT2 Features Section 1-1
Slave Comments User-set names can be assigned and saved in the Slave for each Unit.
I/O Comments User-set names can be assigned and saved in the Slave for each of the I/O
contacts, such as sensors or valves, that are connected to the Slave.
Communications Error History Monitor
Last Maintenance Date The dates on which maintenance is performed can be written to the Unit using
The error statuses (communications error cause code and communications power supply voltage when error occurred) for the last four communications errors that occurred can be recorded in the Slave. The Configurator can be used to read the information.
the Configurator.
Features of General-purpose Slaves and Environment-resistive Slaves
No Internal Circuit Power Supply Wiring for Slaves
I/O Power Status Monitor The I/O Power Status Monitor is used to detect whether the I/O power supply
Input Filter The input filter is used to read the input value several times during the set
Power ON Delay The I/O power supply can be monitored to stop any input when the I/O power
Contact Operation Counter
The communications power supply is used for the internal circuit power for the Unit. This eliminates the need to wire the Unit's internal circuit power supply.
is connected and provide notification in the Status Area. The Configurator or explicit messages can be used to read the information.
interval and remove irregular data caused by noise and switch chattering.
This function can also be used to create ON/OFF delays.
is OFF and for 100 ms after it is turned ON. This function prevents incorrect inputs caused by inrush current at startup after the I/O power is turned ON.
The number of times each input or output contact changes from OFF to ON can be counted (maximum resolution: 50 Hz). The Configurator or explicit messages can be used to read the information. The Slave also maintains a set value for monitoring the number of contact operations, and will provide notification in the Status Area if the set value is reached.
Note The Contact Operation Counter and Total ON Time Monitor cannot be used at
the same time for a single contact.
Total ON Time Monitor This function is used to total and record in the Slave the time that devices,
such as sensors and relays, that are connected to the Slave are ON. The Configurator or explicit messages can be used to read the information. The Slave also maintains a set value for monitoring the total ON time, and will pro­vide notification in the Status Area if the set value is reached.
Note The Total ON Time Monitor and Contact Operation Counter cannot be used at
the same time for a single contact.
Detection of Sensor Power Short-circuit
The I/O power supply current is monitored and if the current exceeds the rated current, it is judged to be a sensor power short-circuit and the sensor power output is forced OFF.
Environment-resistive Slaves, Advanced Models: The number of the shorted contact can be checked from the I/O status indicators. The Configurator or explicit message communications can also be used to read which connector or sensor has shorted. The Slave will automatically reset when the cause of the short-circuit has been removed.
Sensor Connector Terminals: When a short-circuit is detected in any of the contacts, the I/O power for the Unit is turned OFF. A short-circuit detection error can be confirmed using the SHTO indicator. The Configurator or explicit messages can also be used to read the error status.
3
DRT2 Features Section 1-1
Screw-less Clamp Terminals (DRT2-@D32SLH-1): The number of the shorted contact can be checked using the I/O status indicators. The Configurator or explicit message communications can also be used to read which terminal sensor has shorted. The Slave will automatically reset when the cause of the short-circuit has been removed.
External Load Short­circuit Detection
Sensor Disconnected Detection
External Load Short-circuit Detection monitors the output load current and if the Output Unit's current exceeds the set value, it is judged to be an external load short-circuit and the output is forced OFF to prevent damage to the Unit's output circuit. When an external load short-circuit is detected, the External Load Short-circuit Detection Flag turns ON. The External Load Short-circuit Detection Flag can be read by either the Configurator or explicit messages.
The I/O power supply current is monitored and it is determined whether a sen­sor is disconnected. The Configurator or explicit messages can be used to read which sensor is not connected.
Features of Remote I/O Terminals (General-purpose Slaves)
Detachable Terminal Block
Expansion Units A Basic Unit can be combined with an Expansion Unit. The various I/O combi-
Operation Time Monitor
The terminal block can be detached.
nations that are possible, such as 16 inputs and 8 outputs, or 24 inputs (16 inputs plus 8 inputs), increase the system configuration possibilities.
Basic I/O Unit + Expansion Unit
The time that lapses from when the output turns ON to when the input turns ON can be measured at high speed from the Slave (without relying on the lad­der program). The Slave also maintains a set value for monitoring the opera­tion time, and will provide notification the Status Area if the set time is exceeded. The Configurator or explicit messages can be used to read the information. The DRT2-MD16(-1) cannot be expanded with an Expansion Unit, but its operation time can be monitored.
Three-tier Terminal Block
In contrast to the existing Units, which could only measure I/O (OUT-IN), these Units can also measure operating times for IN-IN and OUT-OUT combina­tions. In addition, the trigger edge (ON to OFF or OFF to ON) can be selected and input and output numbers can be freely combined for flexible settings.
Features of Connector Terminals (General-purpose Slaves)
Wired with Industry Standard Sensor Connectors (Sensor Connector Terminals)
Operation Time Monitor
Industry standard sensor connectors are provided to standardize the I/O wir­ing, thereby making wiring simpler and less labor intensive.
Sensor Connector Terminals
The time that lapses from when the output turns ON to when the input turns ON can be measured at high speed from the Slave (without relying on the lad­der program). The Slave also maintains a set value for monitoring the opera­tion time, and will provide notification the Status Area if the set time is exceeded. The Configurator or explicit messages can be used to read the information.
4
DRT2 Features Section 1-1
MIL Connector Terminals/Board Terminals
In contrast to the existing Units, which could only measure I/O (OUT-IN), these Units can also measure operating times for IN-IN and OUT-OUT combina­tions. In addition, the trigger edge (ON to OFF or OFF to ON) can be selected and input and output numbers can be freely combined for flexible settings.
Features of Screw-less Clamp Terminals (General-purpose Slaves)
Labor-saving Clamp Termina l Block
Detection Functions (Standard Feature, DRT2­@D@@SLH(-1) Only)
Operation Time Monitor In contrast to the existing Units, which could only measure I/O (OUT-IN), these
For I/O wiring, a screw-less clamp terminal block is provided. Wiring is reduced by the use of post terminals that can be easily inserted and then later removed by simply pressing a release button.
Detection results can be read by using the Configurator or explicit messages if the sensor short-circuit/disconnected and external load short-circuit/discon­nected detection functions are used. The error location can be rapidly speci­fied and restored.
Units can also measure operating times for IN-IN and OUT-OUT combina­tions. In addition, the trigger edge (ON to OFF or OFF to ON) can be selected and input and output numbers can be freely combined for flexible settings.
Features of Environment-resistive Terminals
Dust-proof and Waterproof Construction (IP67) for High Resistance to Environment
No Power Supply Wiring for Input Devices (Advanced Models Only)
Connect High-load Devices (1.5 A Max., Advanced Models Only)
The environment-resistive construction enables usage in locations subject to oil and water splashes (IP67). An environment-resistive box is not required, enabling greater downsizing and reducing wiring labor.
Power for communications, internal circuits, and input devices is shared, mak­ing wiring necessary only for the communications power supply. With stan­dard models, a power supply must be wired to I/O devices.
The rated output current is 1.5 A, allowing the direct connection of output devices with high loads.
Operation Time Monitor (DRT2-MD16CL(-1) and DRT2-@D04CL Only)
The time that lapses from when the output turns ON to when the input turns ON can be measured at high speed from the Slave (without relying on the lad­der program). The Slave also maintains a set value for monitoring the opera­tion time, and will provide notification the Status Area if the set time is exceeded. The Configurator or explicit messages can be used to read the information.
Analog Slave Features
Setting the Number of AD Conversion Points (DRT2­AD04 Only)
Moving Average (Input Units Only)
Scaling Scaling allows values to be converted according to the industry unit required
Peak/Bottom Hold (Input Units Only)
The conversion cycle when all 4 analog input points are used is 4 ms max. The AD conversion cycle can be shortened by reducing the number of points used (i.e., the number of AD conversion points).
Analog Input Terminals and Temperature Input Terminals can calculate the average of the past eight analog input values to produce a stable input value even when the input value is unsteady.
by the user. It reduces the number of operations requiring ladder program­ming in the Master CPU Unit. Scaling also supports an offset function for com­pensating for errors in scaled values.
The maximum (peak) and minimum (bottom) values input to Analog Input Ter­minals and Temperature Input Terminals can be held. These values can then
5
DRT2 Features Section 1-1
be compared with alarm set values, and flags turned ON as appropriate to indicate the status (comparator function).
Top/Valley Hold (Input Units Only)
Rate of Change (Input Units Only)
Comparator (Input Units Only)
Off-wire Detection (Input Units Only)
User Adjustment Input (or output) can be adjusted to compensate for errors in the input (or out-
The top and valley values for values input to Analog Input Terminals and Tem­perature Input Terminals can be held. The timing of tops and valleys can be monitored with the Top/Valley Detection Timing Flags. The top and valley val­ues can be compared with alarm set values, and flags turned ON as appropri­ate to indicate the status (comparator function).
The rate of change for values input to Analog Input Terminals and Tempera­ture Input Terminals can be obtained for each sampling cycle.
Values input to Analog Input Terminals and Temperature Input Terminals or values after math processing can be compared to the alarm set values (HH, H, L, and LL), and the result indicated with the Analog Status Flags. If the result is outside the set range, the Normal Flag (pass signal) is turned ON.
With Analog Input Terminals, disconnections can be detected in wiring for analog (voltage or current) inputs that are enabled as AD conversion points. The status can be checked at the Master using the Off-wire Detection Flag. This function is valid only for the input ranges 4 to 20 mA and 1 to 5 V.
With Temperature Input Terminals, disconnections can be detected for each sensor input. The status can be checked at the Master using the Off-wire Detection Flag.
put) voltage or current resulting from the characteristics or connection meth­ods of the input (or output) device. Compensation is performed by applying linear conversion based on the points corresponding to 0% and 100%.
Cumulative Counter A cumulated value that approximates the integral of analog input (or output)
values or a temperature input value over time can be calculated and read. Monitor values can also be set in the Unit. When the cumulated count value exceeds the set monitor value, the Cumulative Counter Flag in the area for Generic Status Flags turns ON.
Communications Error Output (Output Units Only)
Top/Valley Count Function The number of times the top or valley value is reached can be counted for an
Temperature Range Timing Function
Input Temperature Variation Detection Function
The values output by Output Units when errors occur can be set for each out­put.
application that has fixed cycles of temperature changes. Explicit messages can be used to see if the number of times that is counted has exceeded a monitoring set value.
The length of time that the system is at a user-set temperature or within a user-set temperature range can be measured in seconds. Explicit messages can be used to see if the measured time has exceeded a monitoring set value.
A relative comparison can be made between two inputs (0 to 3) and to detect temperature differences between two inputs or with a monitoring set value. Explicit messages can be used to see if the temperature difference has exceeded a monitoring set value.
6
DRT2 Slaves Section 1-2

1-2 DRT2 Slaves

The DRT2-series Smart Slaves are classified into the following categories.
• General-purpose Slaves Slaves with digital I/O functions using standard connectors for communi­cations cables.
• Environment-resistive Slaves Slaves with I/O functions using round waterproof connectors for communi­cations cables.
• Analog Slaves Slaves with analog I/O functions using standard connectors for communi­cations cables.
1-2-1 General-purpose Slaves
Name Appearance I/O points Model number Remarks
Remote I/O Termi­nals with Transistors
Remote I/O Termi­nal with Relay Out­puts
8 input points (NPN) DRT2-ID08 Terminal block mounted/
8 input points (PNP) DRT2-ID08-1
8 output points (NPN) 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
removed using screws.
Remote I/O Termi­nal Expansion Units with Transistors
Remote I/O Terminals
Remote I/O Termi­nals with 3-tier Ter­minal Blocks and 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 to
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)
DRT2-MD16TA
DRT2-MD16TA-1
increasing inputs or out­puts of the Basic Unit.
find (wiring to the same terminal not required).
Cannot be expanded with an Expansion Unit.
7
DRT2 Slaves Section 1-2
Name Appearance I/O points Model number Remarks
Sensor Connector Terminals with Tran­sistors
MIL Connector Ter­minals with Transis­tors
Connector Terminals
Board MIL Connec­tor Terminals with Transistors
Connector Terminals
16 input points (NPN) DRT2-ID16S Use industry standard
16 input points (PNP) DRT2-ID16S-1
8 input points/8 output
DRT2-MD16S
sensor connectors.
points (NPN)
8 input points/8 output
DRT2-MD16S-1
points (PNP)
16 input points (NPN) DRT2-ID16ML Connects to relay termi-
16 input points (PNP) DRT2-ID16ML-1
nal using MIL cable.
16 output points (NPN) DRT2-OD16ML
16 output points (PNP) DRT2-OD16ML-1
16 input points (NPN) DRT2-ID16MLX A connecting cable (10
16 input points (PNP) DRT2-ID16MXL-1
cm) is included.
16 output points (NPN) DRT2-OD16MLX
16 output points (PNP) DRT2-OD16MXL-1
32 input points (NPN) DRT2-ID32ML Connects to relay termi-
32 input points (PNP) DRT2-ID32ML-1
nal using MIL cable.
32 output points (NPN) DRT2-OD32ML
32 output points (PNP) DRT2-OD32ML-1
16 input points/16 output
DRT2-MD32ML
points (NPN)
16 input points/16 output
DRT2-MD32ML-1
points (PNP)
32 input points (NPN) DRT2-ID32B MIL connectors mounted
32 input points (PNP) DRT2-ID32B-1
parallel to board
32 output points (NPN) DRT2-OD32B
L
A
32 output points (PNP) DRT2-OD32B-1
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16 input points/16 output
DRT2-MD32B
points (NPN)
16 input points/16 output
DRT2-MD32B-1
points (PNP)
32 input points (NPN) DRT2-ID32BV MIL connectors mounted
32 input points (PNP) DRT2-ID32BV-1
32 output points (NPN) DRT2-OD32BV
L
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R
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32 output points (PNP) DRT2-OD32BV-1
O
16 input points/16 output
DRT2-MD32BV
perpendicular to board
points (NPN)
16 input points/16 output
DRT2-MD32BV-1
points (PNP)
8
DRT2 Slaves Section 1-2
Name Appearance I/O points Model number Remarks
Screw-less Clamp Terminal with Tran­sistors
Screw-less Clamp Terminals
16 input points (NPN) DRT2-ID16SL Without detection func-
16 input points (PNP) DRT2-ID16SL-1
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 func-
32 input points (PNP) DRT2-ID32SL-1
32 output points (NPN) DRT2-OD32SL
32 output points (PNP) DRT2-OD32SL-1
16 input points/16 output points (NPN)
16 input points/16 output 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 output points (NPN)
16 input points/16 output points (PNP)
DRT2-MD32SL
DRT2-MD32SL-1
DRT2-MD32SLH
DRT2-MD32SLH-1
tion
tion
1-2-2 Environment-resistive Slaves
Name Appearance I/O points Model number Remarks
Environment-resis­tive Terminals, Advanced Models
8 input points (NPN) DRT2-ID08C Waterproof, oil-proof, and
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-OD08C-1
spatter-proof construction (IP67).
Equipped with detection functions.
9
DRT2 Slaves Section 1-2
Name Appearance I/O points Model number Remarks
Environment-resis­tive Terminals, Stan­dard Models
4 input points (NPN) DRT2-ID04CL Waterproof, oil-proof, and
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)
DRT2-MD16CL
DRT2-MD16CL-1
spatter-proof construction (IP67).
Not equipped with detection functions.
1-2-3 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)
DRT2-AD04 Terminal block mounted/
removed using screws. The DRT2-AD04H is a High-
resolution Terminal (1/30,000 FS).
DRT2-AD04H
Temperature Input Te r mi n al s
2 output points (0 to 5 V, 1 to 5 V, 0 to
10 V, 10 to 10 V, 0 to 20 mA, 4 to 20 mA)
4 input points (Switchable between R,
S, K1, K2, J1, J1, T, E, B, N, L1, L2, U, W, and PL2.)
4 input points (Switchable between PT,
JPT, PT2, and JPT2.)
DRT2-DA02
DRT2-TS04T Thermocouple input
DRT2-TS04P Platinum resistance ther-
mometer input
10
DRT2 Slaves Section 1-2
1-2-4 Smart Slave Feature Support
Yes: Supported.; No: Not supported.
Type General-purpose Slaves
Remote I/O Terminals
Standard Relay
Feature Input Output Mix Output Input Output Mix
Operation Time Monitor Yes (for inputs + outputs only) (See note
Contact Operation Counter Yes
Unit ON Time Monitor Yes
Total ON Time Monitor Yes
Naming Units Yes
Naming connected devices Yes
Network Power Voltage Monitor Yes
I/O Power Status Monitor Yes No Yes
Communications Error History Monitor Yes
Input filter Yes No Yes No Yes No Yes
Preventing malfunctions caused by inrush current at startup
Sensor power short-circuit detection No
Sensor disconnected detection No
External load short-circuit detection No
External load disconnected detection No
Detachable terminal block construction Yes
Automatic baud rate detection Yes
Power supply wiring not required for Units Yes
Power supply wiring not required for input devices
Expansion using Expansion Units Yes (See note 2.) No No No
Scaling No
User adjustment No
Last maintenance date Yes
Cumulative counter No
Moving average No
Setting the number of AD conversion points No
Peak/bottom hold No
Top / va ll e y ho l d No
Rate of change No
Comparator No
Communications error output No
1.)
Ye s N o Ye s N o Ye s N o Ye s
No Yes No No No
outputs
3-tier terminal block
Ye s
Note 1. The Operation Time Monitor cannot be used with the DRT2-@D08(-1).
2. The DRT2-@D08(-1) and DRT2-MD16(-1) cannot be expanded with an Ex-
pansion Unit.
3. The Contact Operation Counter and Total ON Time Monitor cannot be used at the same time for the same contact.
11
DRT2 Slaves Section 1-2
Yes: Supported.; No: Not supported.
Type General-purpose Slaves
Sensor Connector Terminals
Sensor connectors MIL connectors
(Board Terminals)
Feature Input Mix Input Output Mix
Operation Time Monitor No Yes Yes
Contact Operation Counter Yes
Unit ON Time Monitor Yes
Total ON Time Monitor Yes
Naming Units Yes
Naming connected devices Yes
Network Power Voltage Monitor Yes
I/O Power Status Monitor No Yes
Communications Error History Monitor Yes
Input filter Yes Yes No Yes
Preventing malfunctions caused by inrush current at startup
Sensor power short-circuit detection Yes No
Sensor disconnected detection No
External load short-circuit detection No Yes No
External load disconnected detection No
Detachable terminal block construction No
Automatic baud rate detection Yes
Power supply wiring not required for Units Yes
Power supply wiring not required for input devices Yes No
Expansion using Expansion Units No
Scaling No
User adjustment No
Last maintenance date Yes
Cumulative counter No
Moving average No
Setting the number of AD conversion points No
Peak/bottom hold No
Top / va ll e y ho l d No
Rate of change No
Comparator No
Communications error output No
Ye s Ye s N o Ye s
12
Note The Contact Operation Counter and Total ON Time Monitor cannot be used at
the same time for the same contact.
DRT2 Slaves Section 1-2
Yes: Supported.; No: Not supported.
Type General-purpose Slaves
Screw-less Clamp Terminals
DRT2-
@D16SLH (With
detection function)
Feature Input Output Input Output
Operation Time Monitor Yes
Contact Operation Counter Yes
Unit ON Time Monitor Yes
Total ON Time Monitor Yes
Naming Units Yes
Naming connected devices Yes
Network Power Voltage Monitor Yes
I/O Power Status Monitor Yes
Communications Error History Monitor Yes
Input filter Yes No Yes No
Preventing malfunctions caused by inrush current at startup
Sensor power short-circuit detection Yes No No
Sensor disconnected detection Yes No No
External load short-circuit detection No Yes No
External load disconnected detection No Yes No
Detachable terminal block construction Yes
Automatic baud rate detection Yes
Power supply wiring not required for Units Yes
Power supply wiring not required for input devices No
Expansion using Expansion Units No
Scaling No
User adjustment No
Last maintenance date Yes
Cumulative counter No
Moving average No
Setting the number of AD conversion points No
Peak/bottom hold No
Top / va ll e y ho l d No
Rate of change No
Comparator No
Communications error output No
Ye s N o Ye s N o
DRT2-@D16SL (Without
detection function)
The Contact Operation Counter and Total ON Time Monitor cannot be used at the same time for the same contact.
13
DRT2 Slaves Section 1-2
Yes: Supported.; No: Not supported.
Type General-purpose Slaves
Screw-less Clamp Terminals
DRT2-@D32SLH (With detection
Feature Input Output Mix Input Output Mix
Operation Time Monitor Yes Yes
Contact Operation Counter Yes
Unit ON Time Monitor Yes
Total ON Time Monitor Yes
Naming Units Yes
Naming connected devices Yes
Network Power Voltage Monitor Yes
I/O Power Status Monitor Yes
Communications Error History Monitor Yes
Input filter Yes No Yes Yes No Yes
Preventing malfunctions caused by inrush current at startup
Sensor power short-circuit detection Yes No Yes No
Sensor disconnected detection Yes No Yes No
External load short-circuit detection No
External load disconnected detection No Yes Yes No
Detachable terminal block construction Yes
Automatic baud rate detection Yes
Power supply wiring not required for Units Yes
Power supply wiring not required for input devices
Expansion using Expansion Units No
Scaling No
User adjustment No
Last maintenance date Yes
Cumulative counter No
Moving average No
Setting the number of AD conversion points No
Peak/bottom hold No
Top / va ll e y ho l d No
Rate of change No
Comparator No
Communications error output No
Ye s N o Ye s Ye s N o Ye s
No
function)
DRT2-@D32SL (Without detection
function)
14
Note The Contact Operation Counter and Total ON Time Monitor cannot be used at
the same time for the same contact.
DRT2 Slaves Section 1-2
Yes: Supported.; No: Not supported.
Type Environment-resistive Terminals
Advanced models Standard models
Feature Input Output Input Output Mix
Operation Time Monitor No No No (See note.) Yes
Contact Operation Counter Yes Yes Yes Yes Yes
Unit ON Time Monitor Yes Yes Yes Yes Yes
Total ON Time Monitor Yes Yes Yes Yes Yes
Naming Units Yes Yes Yes Yes Yes
Naming connected devices Yes Yes Yes Yes Yes
Network Power Voltage Monitor Yes Yes Yes Yes Yes
I/O Power Status Monitor No Yes Yes Yes Yes
Communications Error History Monitor Yes Yes Yes Yes Yes
Input filter Yes No Yes No Yes
Preventing malfunctions caused by inrush current at startup
Sensor power short-circuit detection Yes No No No No
Sensor disconnected detection Yes No No No No
External load short-circuit detection No Yes No No No
External load disconnected detection No No No No No
Detachable terminal block construction No No No No No
Automatic baud rate detection Yes Yes Yes Yes Yes
Power supply wiring not required for Units Yes Yes Yes Yes Yes
Power supply wiring not required for input devices Yes No No No No
Expansion using Expansion Units No No No No No
Scaling NoNoNoNoNo
User adjustment No No No No No
Last maintenance date Yes Yes Yes Yes Yes
Cumulative counter NoNoNoNoNo
Moving average No No No No No
Setting the number of AD conversion points No No No No No
Peak/bottom hold NoNoNoNoNo
Top/valley hold No No No No No
Rate of change No No No No No
Comparator No No No No No
Communications error output No No No No No
Top/valley count function No No No No No
Temperature range timing function No No No No No
Input temperature variation detection function No No No No No
Ye s N o Ye s N o Ye s
Note (1) The Operation Time Monitor can be used with the DRT2-@D04CL(-1).
(2) The Contact Operation Counter and Total ON Time Monitor cannot be
used at the same time for the same contact.
15
DRT2 Slaves Section 1-2
Yes: Supported.; No: Not supported.
Type Analog Slaves
Analog Terminals Temperature
DRT2-AD04 DRT2-AD04H DRT2-DA02
Feature Input Output Input
Operation Time Monitor No No No No
Contact Operation Counter No No No No
Unit ON Time Monitor Yes Yes Yes Yes
Total ON Time Monitor No No No No
Naming Units Yes Yes Yes Yes
Naming connected devices Yes Yes Yes Yes
Network Power Voltage Monitor Yes Yes Yes Yes
I/O Power Status Monitor No No No No
Communications Error History Monitor Yes Yes Yes Yes
Input filter No No No No
Preventing malfunctions caused by inrush current at startup No No No No
Sensor power short-circuit detection No No No No
Sensor disconnected detection No No No No
External load short-circuit detection No No No No
External load disconnected detection No No No No
Detachable terminal block construction Yes Yes Yes Yes
Automatic baud rate detection Yes Yes Yes Yes
Power supply wiring not required for Units Yes Yes Yes Yes
Power supply wiring not required for input devices No No No No
Expansion using Expansion Units No No No No
Scaling Yes Yes Yes Yes
User adjustment Yes Yes Yes Yes
Last maintenance date Yes Yes Yes Yes
Cumulative counter Yes Yes Yes Yes
Moving average Yes Yes No Yes
Setting the number of AD conversion points Yes No No No
Peak/bottom hold Yes Yes No Yes
Top/valley hold Yes Yes No Yes
Rate of change Yes Yes No Yes
Comparator Yes Yes No Yes
Communications error output No No Yes No
Top/valley count function No No No Yes
Temperature range timing function No No No Yes
Input temperature variation detection function No No No Yes
Input
Ter mina l
16
Note The Contact Operation Counter and Total ON Time Monitor cannot be used at
the same time for the same contact.
DRT2 Slaves Section 1-2
1-2-5 Installing and Connecting Slaves
Slave type Communi-
cations
cables
General-pur­pose Slaves
Standard rectangular connector
Name Model Slave
Remote I/O Te r m i n a ls with Transis­tors
Remote I/O Te r m i n a ls with 3-tier Ter­minal Blocks and Transis­tors
Remote I/O Te r m i n a l Expansion Units with Transistors
Remote I/O Te r mi na l w it h Relay Outputs
Sensor Con­nector Termi­nals with Transistors
MIL Connec­tor Terminals with Transis­tors
DRT2-ID08 DIN Track M3 termi-
DRT2-ID08-1
DRT2-OD08
DRT2-OD08-1
DRT2-ID16
DRT2-ID16-1
DRT2-OD16
DRT2-OD16-1
DRT2-MD16
DRT2-MD16-1
DRT2-ID16TA DIN Track
DRT2-ID16TA-1
DRT2-OD16TA
DRT2-OD16TA-1
DRT2-MD16TA
DRT2-MD16TA-1
XWT-ID16 DIN Track See note.
XWT-ID16-1
XWT-OD16
XWT-OD16-1
XWT-ID08
XWT-ID08-1
XWT-OD08
XWT-OD08-1
DRT2-ROS16 Relay Shares
DRT2-ID16S DIN Track
DRT2-ID16S-1
DRT2-MD16S
DRT2-MD16S-1
DRT2-ID16ML DIN Track
DRT2-ID16ML-1
DRT2-OD16ML
DRT2-OD16ML-1
DRT2-ID16MLX
DRT2-ID16MLX-1
DRT2-OD16MLX
DRT2-OD16MLX-1
installation
or screws
or screws
or screws with Mount­ing Bracket
I/O con-
nection
method
nal block (detach­able)
Industry standard connector
MIL con­nector
Internal
power sup-
ply
Shares communi­cations power sup­ply.
Shares communi­cations power sup­ply.
I/O power
supply
Requires external power sup­ply.
communi­cations power sup­ply. An external power sup­ply is required, however, for MD16S-1 outputs.
Requires external power sup­ply.
17
DRT2 Slaves Section 1-2
Slave type Communi-
General-pur­pose Slaves
cations
cables
Standard rectangular connector
Name Model Slave
MIL Connec­tor Terminals with Transis­tors
Board MIL Connector Te r m i n a ls with Transis­tors
Screw-less Clamp Termi­nal with Tran­sistors
DRT2-ID32ML DIN Track
DRT2-ID32ML-1
DRT2-OD32ML
DRT2-OD32ML-1
DRT2-MD32ML
DRT2-MD32ML-1
DRT2-ID32B Screws
DRT2-ID32B-1
DRT2-OD32B
DRT2-OD32B-1
DRT2-MD32B
DRT2-MD32B-1
DRT2-ID32BV
DRT2-ID32BV-1
DRT2-OD32BV
DRT2-OD32BV-1
DRT2-MD32BV
DRT2-MD32BV-1
DRT2-ID16SL DIN Track Screw-less
DRT2-ID16SL-1
DRT2-OD16SL
DRT2-OD16SL-1
DRT2-ID32SL
DRT2-ID32SL-1
DRT2-OD32SL
DRT2-OD32SL-1
DRT2-MD32SL
DRT2MD32SL-1
DRT2-ID16SLH
DRT2-ID16SLH-1
DRT2-OD16SLH
DRT2-OD16SLH-1
DRT2-ID32SLH
DRT2-ID32SLH-1
DRT2-OD32SLH
DRT2-OD32SLH-1
DRT2-MD32SLH
DRT2-MD32SLH-1
installation
or screws with Mount­ing Bracket
I/O con-
nection
method
MIL con­nector
clamp
Internal
power sup-
ply
Shares communi­cations power sup­ply.
I/O power
supply
Requires external power sup­ply.
18
Note Use the following table to determine the I/O power supply for the Expansion
Unit.
Device combination I/O power supply to Expansion Unit
Basic Input Unit (IN) + Expansion Input Unit (IN):
Example: DRT2-ID16+XWT-ID16
Basic Input Unit (IN) + Expansion Output Unit (OUT):
Example: DRT2-ID16+XWT-OD16
Not required. (I/O power supply shared with Basic Unit.)
Required. (I/O power supply required for both Units.)
DRT2 Slaves Section 1-2
Device combination I/O power supply to Expansion Unit
Basic Output Unit (OUT) + Expansion Input Unit (IN):
Example: DRT2-OD16+XWT-ID16
Basic Output Unit (OUT) + Expansion Output Unit (OUT):
Example: DRT2-OD16+XWT-OD16
Basic Output Unit (OUT) + Expansion Output Unit (IN):
Example: DRT2-ROS16+XWT-ID16
Basic Output Unit (OUT) + Expansion Output Unit (OUT):
Example: DRT2-ROS16+XWT-OD16
Required. (I/O power supply required for both Units.)
Required. (I/O power supply required for both Units.)
Required. (I/O power supply required for Expansion Unit only.)
Required. (I/O power supply required for Expansion Unit only)
Slave
type
Environ­ment­resistive Slaves
Analog Slaves
Communi-
cations
cables
Round communi­cations connector
Standard rectangular connector
Name Model Slave
Environ­ment-resis­tive Terminals
Analog Ter­minals
Te mp e r a­ture Input Terminals
DRT2-ID08C Screw-
DRT2-ID08C-1
DRT2-HD16C
DRT2-HD16C-1
DRT2-OD08C Requires
DRT2-OD08C-1
DRT2-ID04CL
DRT2-ID04CL-1
DRT2-OD04CL
DRT2-OD04CL-1
DRT2-ID08CL
DRT2-ID08CL-1
DRT2-HD16CL
DRT2-HD16CL-1
DRT2-OD08CL
DRT2-OD08CL-1
DRT2-WD16CL
DRT2-WD16CL-1
DRT2-MD16CL
DRT2-MD16CL-1
DRT2-AD04 DIN Track M3 termi-
DRT2-AD04H
DRT2-DA02
DRT2-TS04T
DRT2-TS04P
mounted
installa-
tion
I/O con-
nection
method
Round water­proof con­nector (for XS2)
nal block (detach­able)
Connect-
ing
devices
Cable with XS2 Con­nector + Sensor with Con­nector
Te r mi n al block con­nection
Internal
power
supply
Shares communi­cations power sup­ply
I/O power
supply
Shares communi­cations power sup­ply
external power sup­ply.
Con­nected with XS4@ connector.
Separate power sup­ply required for con­nected devices, such as sensors and actua­tors.
19
DRT2 Slaves Section 1-2
20
SECTION 2
Example System Startup
This section provides information on hardware aspects of Masters and Slaves connected to a DeviceNet Network to ensure the proper operation of the system. Included are system configuration examples, basic procedures for wiring, details on mounting and setting Master and Slave Units, procedures for connecting cables and power supplies, creating I/O tables, creating and registering scan lists, and checking operation of the system.
2-1 Basic Procedures and Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . 22
2-1-1 Basic Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2-1-2 System Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2-2 Preparations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2-2-1 Selecting Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2-2-2 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2-2-3 Communications Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2-3 Setting and Wiring Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2-3-1 Mounting and Setting the Master Unit . . . . . . . . . . . . . . . . . . . . . . . 24
2-3-2 Mounting and Setting Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2-3-3 Mounting Connecting Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2-3-4 Connecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2-4 Starting Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2-4-1 Creating I/O Tables for the Master Unit. . . . . . . . . . . . . . . . . . . . . . 27
2-4-2 Starting the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2-4-3 Creating and Registering Scan Lists. . . . . . . . . . . . . . . . . . . . . . . . . 28
2-5 Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2-5-1 Indicator Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2-5-2 Reading and Writing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
21
Basic Procedures and Configuration Examples Section 2-1

2-1 Basic Procedures and Configuration Examples

The examples shown here provide the basic operating procedures for DeviceNet.
2-1-1 Basic Procedures
The basic application procedures are as follows: For details on settings and connections, refer to the operation manual for the Master Unit. For further details on Slave Units, refer to SECTION 5 General-purpose Slaves and SEC- TION 6 Environment-resistive Slaves.
Preparing the Units
1,2,3... 1. Select the appropriate Units. Refer to page 23.
2. Determine the appropriate wiring method. Refer to page 23.
3. Determine the appropriate method for supplying communications power. Refer to page 23.
Setting and Wiring Hardware
1,2,3... 1. Separate and lay the cables.
2. Mount the Master Unit and specify the correct settings. Refer to page 24.
3. Mount the Slave Units and specify the correct settings. Refer to page 25.
4. Mount other devices to be connected to the Network. Refer to page 26.
5. Connect the cables. Refer to page 26.
6. Wire the I/O cables. Refer to page 26.
Starting Communications
1,2,3... 1. Create the I/O tables. Refer to page 27.
2. Start up the system. Refer to page 28.
3. Create and register the scan list. Refer to page 28.
Checking Operations
1,2,3... 1. Check the status of the indicators on the Unit. Refer to page 29.
2. Check that data is reading and writing properly. Refer to page 29.
Note The examples provided in this section show the minimum settings to operate
the system. If details on other settings for actual operation are required, refer to the operation manual for the Master Unit. For further details on Slave Units, refer to SECTION 5 General-purpose Slaves and SECTION 7 Analog Slaves.
2-1-2 System Configuration Example
The following diagram shows the operating procedure using a system configu­ration example.
The system configuration shown here uses Thin Cables.
The following diagram is simplified, so it does not include the separate I/O power supply that must be provided to the Output Unit (or Expansion Output Unit).
22
Preparations Section 2-2
DRT2-ID16 Remote I/O Terminal; 16 transistor inputs; (Node 01)
DRT2-OD16 Remote I/O Terminal; 16 transistor outputs; (Node 02)
Terminating Resistor

2-2 Preparations

2-2-1 Selecting Units
Select the following Units as shown in 2-1-2 System Configuration Example.
Master Unit:CS1W-DRM21-V1
Slave Units:DRT2-ID16 + XWT-ID08
There is a complete line of OMRON Master Units and Slave Units available
CS1W-DRM21-V1 Master Unit (Node 63)
DCN1-3C T-branch Ta p
DRT2-ID16 Remote I/O Terminal; 16 transistor inputs; XWT-ID08 Remote I/O Terminal Expansion Unit; 8 transistor inputs; (Node 03)
S82K-05024 24-V DC Power Supply (100 V AC, 50 W)
DCN1-1C T-branch Ta p
DCN1-1C T-branch Ta p
DRT2-OD16 Remote I/O Terminal; 16 transistor outputs; XWT-OD08 Remote I/O Terminal Expansion Unit; 8 transistor outputs; (Node 04)
DRT2-OD16 + XWT-OD08
that are compatible with DeviceNet. Select Units that suit the needs of the system.
2-2-2 Wiring
Either Thick Cables or Thin Cables can be used to wire a DeviceNet Network.
Flexible branching of cables is possible by using either T-branch Taps or multi­drop connections.
Restrictions on the maximum network length and total branch line length depend on the baud rate and type of cable used. For details on network con­figurations and specifications, refer to the DeviceNet Operation Manual (W267).
2-2-3 Communications Power Supply
Each node (Master or Slave) must be supplied with a 24-V DC power supply for proper DeviceNet communications.
The communications power, however, can be supplied by communications cables and does not require separate wiring.
For systems that have a short maximum network length, power can be sup­plied to all nodes by using one communications power supply.
Various conditions, constraints, and measures affect how the communications power is supplied. In the examples shown here, the power is supplied from one communications power supply, and communications cables are con­nected using T-branch Taps.
For details on methods of supplying communications power, refer to the DeviceNet Operation Manual (W267).
23
Setting and Wiring Hardware Section 2-3
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
Note Use the OMRON Connectors shown below when using Thick Cables and
multi-drop connections for wiring. XW4B-05C4-TF-D (With set screws)
XW4G-05C4-TD-D (With set screws)

2-3 Setting and Wiring Hardware

Use the following procedures to mount, set, and wire the hardware.
2-3-1 Mounting and Setting the Master Unit
Settings The components, functions, and switch settings for the CS1W-DRM21,
CS1W-DRM21-V1 or CJ1W-DRM21 Master Unit mounted to a CS/CJ-series PLC are shown as an example in the following diagram.
For information on switch settings, refer to the operation manual for the Mas­ter Unit.
CS1W-DRM21 (-V1)
DRM21
MS
NS
NODE ADR
UNIT No.
1234
ON
X10
CS
Indicators
Unit No. switch This rotary switch sets the single-digit hexadecimal
unit number of the Master on the DeviceNet network.
1
0
X10
1
DR0
2
DR1
3
ESTP
HOLD
4
Node address switches These rotary switches set the double-digit decimal
node address of the Unit.
DIP switch These pins have the following functions: Pins 1 and 2: Baud rate Pins 3: Continue/stop remote I/O communications for
error (for Master functions) Pin 4: Hold/clear I/O for communications error (for
Slave functions).
Communications connector This connector is connected to the Network
communications cable. Communications power is also supplied through this connector. An XW4B­05C1-H1-D Parallel Connector with Screws is provided as the node connector.
24
Setting and Wiring Hardware Section 2-3
CJ1W-DRM21
DRM21
4 3 2 1
1
0
HOLD ESTP DR1 DR0
MS NS
UNIT
5
4
6
3
7
2
8
1
9
0
A
NO.
F
B
E
C
D
3
3
4
4
2
2
5
5
1
6
6
0
7
7
9
9
8
8
ON
ON
1234
Indicators
Unit No. switch This rotary switch sets the single-digit hexadecimal
unit number of the Master on the DeviceNet network.
Node address switches These rotary switches set the double-digit decimal node address of the Unit.
DIP switches These pins have the following functions: Pins 1 and 2: Baud rate Pins 3: Continue/stop remote I/O communications for error (for Master functions) Pin 4: Hold/clear I/O for communications error (for Slave functions).
Communications connector This connector is connected to the Network communications
cable. Communications power is also supplied through this connector. An XW4B-05C1-H1-D Parallel Connector with Screws is provided as the node connector.
Mounting The Master Unit is mounted to the Backplane of the PLC in the same way as
other Units are normally mounted. CJ-series Master Units have no Backplane, so connect the Units together by joining the connectors. For details on mount­ing Master Units to PLCs, and PLCs to control panels, refer to the applicable PLC Operation Manual.
2-3-2 Mounting and Setting Slaves
Settings The following example shows Slave settings. For details on how to set Slaves,
refer to SECTION 5 General-purpose Slaves to SECTION 7 Analog Slaves.
• DRT2-ID16 Remote I/O Terminals (transistor inputs) Node address: 01
• DRT2-OD16 Remote I/O Terminals (transistor outputs) Node address: 02
• DRT2-ID16 Remote I/O Terminals (transistor inputs) XWT-ID08 Remote I/O Terminal Expansion Unit Node address: 03
• DRT2-OD16 Remote I/O Terminals (transistor outputs) XWT-OD08 Remote I/O Terminal Expansion Unit Node address: 04
Mounting Remote I/O Terminals are mounted by fixing to a DIN Track, as shown in the
following example.
Secure the bottom of the Slave Unit to a 35-mm DIN Track, or secure the Slave Unit to the track between two End Plates.
Mounting Example The following diagram shows all Units except the PLC node mounted to DIN
Tr ac k s.
Master
Remote I/O Terminal (Input)
Remote I/O Terminal (Output)
0
25
Setting and Wiring Hardware Section 2-3
2-3-3 Mounting Connecting Devices
The following connecting devices require being mounted:
• T-branch Taps: Secure to the control panel with screws, or mount to a DIN Tr ac k .
• Terminal-block Terminating Resistors: Secure to the control panel with screws.
2-3-4 Connecting Cables
Connecting Communications Cables
Connect the Master Unit and T-branch Taps, T-branch Taps and T-branch Taps, and T-branch Taps and Slaves using Thin DeviceNet Communications Cables, as shown in the following diagram.
When a Terminating Resistor is required, connect it to the final T-branch Tap in the Network. The T-branch Tap must be no further than 6 m from the final node.
24-V DC power supply
Remote I/O Terminal
T-branch Ta p
T-branch Ta p
Remote I/O Terminal
Remote I/O Terminal
Remote I/O Terminal
Terminating Resistor
CS Rack
T-branch Ta p
If a Terminal-block Terminating Resistor is required, connect it to the end of an extension cable (1 m max.) that is connected to the final node.
Use the following procedure to connect the cables. Refer to 5-2 Connecting Communications Cables to General-purpose Slaves for details.
1,2,3... 1. Prepare the communications cables and attach the connectors to the ca-
bles.
2. Connect the communications cable connectors to the node connectors on the Master Unit, T-branch Taps, and Slaves.
Wiring the I/O Power Supply
If required, an I/O power supply for I/O devices is connected to the Remote I/O Terminals. Connect M3 crimp terminals to the power lines and then con­nect them to the terminal block.
Wiring I/O Wire the I/O to the Remote I/O Terminals.
Connect M3 crimp terminals to the signal lines and then connect them to the terminal block.
26
Starting Communications Section 2-4

2-4 Starting Communications

After setting and wiring the hardware, turn ON the communications power supply, the internal power supply of each node, and the I/O power supply, and then start communications using the following procedure.
2-4-1 Creating I/O Tables for the Master Unit
I/O tables must be created in the CPU Unit to distinguish between the different Slaves mounted to the PLC. Turn ON the PLC to which the Master Unit is mounted, connect the Peripheral Devices to the PLC, and create the I/O tables. After the I/O tables have been created, turn OFF the power to the PLC.
The following example shows the procedure for creating I/O tables using a Programming Console. For details on creating I/O tables, refer to the opera­tion manual for the Peripheral Device being used.
Turn ON the power to the Master Unit
PROGRAM
Switch the CPU Unit of the Master Unit to PROGRAM mode.
<PROGRAM> PASSWORD!
CLR
000000 CT00
FUN
00000IOTBL ? ?-?U=
CHG
00000IOTBL WRIT ????
9 7 1 3
00000IOTBL WRIT 9713
WRITE
00000IOTBL WRIT
OK
0
MONTR
SHIFT
CLR
CLR
CH
*DM
WRITE
27
Starting Communications Section 2-4
2-4-2 Starting the System
Turn ON the communications power supply and the power to other nodes in the following order.
1,2,3... 1. Turn ON the communications power supply.
2. Turn ON the power to each Slave.
3. Turn ON the power to the Master Unit.
Note The power supplies listed above can all be turned ON simultaneously. The
external I/O power supply can be turned ON at any time.
2-4-3 Creating and Registering Scan Lists
Scan lists are lists that register the information that is transferred between Master Units and Slaves. The Master Unit compares the scan list with the sta­tus of the Slave currently being communicated with, so communications with the Slave are always being checked.
For details on scan lists and remote I/O communications, refer to the opera­tion manual for the Master Unit.
Note When a scan list is disabled, communications are possible with all Slaves on
the DeviceNet Network with fixed allocations. Without scan lists, however, the Master Unit cannot check if there is an error in a Slave. For normal operations, always enable the scan lists.
Precautions
User I/O Allocations The user can allocate any words for Slave I/O for the DeviceNet I/O Areas (IN
Area, OUT Area) in the Master Unit.
When user allocations are used, scan lists must be created with a DeviceNet Configurator and registered in the Master Unit. The scan list is enabled as soon as it is registered, and remote I/O communications start according to the scan list.
For details, refer to the DeviceNet Operation Manual (W267) and the DeviceNet Configurator Operation Manual (W328).
Fixed I/O Allocations Slave I/O is allocated in the DeviceNet I/O area (IN Area, OUT Area) in the
Master Unit in the same order as the Slave node addresses.
When fixed allocations are used, the scan lists are automatically created and registered using the Master Unit's software switches. The scan list is enabled as soon as it is registered, and remote I/O communications start according to the scan list. When scan list is enabled, the mode is called the scan list­enabled mode.
The registered scan lists can be cleared using the software switches. When scan lists are cleared (disabled), the mode is called the scan list-disabled mode.
Creating and Registering Fixed Allocation Scan Lists
The method of creating and registering scan lists for fixed allocation using Programming Console and a CS/CJ-series Master Unit is explained here. For details on operating Peripheral Devices, refer to the operation manual for the Peripheral Device being used with the PLC. For details on creating scan lists, refer to the operation manual for the Master Unit.
28
Checking Operation Section 2-5
Creating and Registering Scan Lists
Use the following procedure to create, register, and enable the scan lists.
In the following example, n = 1500 + (25 × unit number).
Clearing and Creating Scan Lists
Switch the operating mode switch to PROGRAM mode.
Enable the Master Unit functions. Set the Master Unit function enable switch (bit 06 of word n) from OFF to ON.
Clear the scan lists. Set the scan list clear switch (bit 01 of word n) from OFF to ON.
Select the fixed allocation areas 1 to 3. Set the Master Unit's setting switch for fixed allocation areas 1 to 3 (bit 00 of word n) from OFF to ON.
Enable the scan lists. Set the scan list enable switch (bit 00 of word n) from OFF to ON.
Switch the operating mode switch to RUN or MONITOR mode.
Checking the Normal Slave Table
Monitor the normal Slave table and check that the corresponding bits are ON. In the normal Slave table, the corresponding bits will turn ON for the nodes that are communicating normally.

2-5 Checking Operation

Use the procedures provided here to check that I/O communications are oper­ating normally.
2-5-1 Indicator Status
I/O communications are operating normally if the MS and NS indicators for all nodes are lit green, and the 7-segment indicator on the front panel of the Mas­ter Unit is displaying the node address of the Master Unit as shown in the fol­lowing diagram (when the Master Unit's node address is 00), and the scan list is enabled.
Master Unit 7-segment Display
OFF: Operating as a Slave.
OFF: Scan list enabled.
Master Unit node address 00 Display switches between error code and error
node address when an error occurs.
2-5-2 Reading and Writing Data
Connect the Peripheral Device for the PLC to the Master Unit, write the Mas­ter Unit's OUT Area and read the IN Area, and check that the data are the same in the Slaves.
Refer to the operation manual for the Master Unit for details on OUT Area and IN Area addresses and how to allocate Slave I/O.
29
Checking Operation Section 2-5
I/O between Remote I/O Termina ls
Create ladder programs in the PLC of the Master Unit, and check that when the switch on the DRT2-ID16 Input Terminal turns ON, the indicator on the DRT2-OD16 Output Terminal is ON.
Master Unit
DRT2-ID16 Remote I/O Terminal (Node 01)
DRT2-OD16 Remote I/O Terminal (Node 02)
330100 320200
Switch 1 (bit 00)
Indicator (bit 00)
Precautions In the system configuration examples in this section, Slave I/O is allocated in
the Master Unit's CIO Area for fixed remote I/O communications as shown in the following diagram.
OUT area IN area
CIO 3200
CIO 3201
CIO 3203
CIO 3204
CIO 3205
CIO 3206
CIO 3207
CIO 3208
CIO 3209
Not used
Not used
DRT2-OD16CIO 3202
Not used
DRT2-OD16
Not used
XWT-OD08
CIO 3300
CIO 3302
CIO 3303
CIO 3304
CIO 3305
CIO 3306
CIO 3307
CIO 3308
CIO 3309
DRT2-ID16CIO 3301
DRT2-ID16
Not used
Not used
Not used
XWT-ID08
Not used
30
SECTION 3
Common Slave Specifications
This section provides specifications and indicator displays that are common to all Slaves. The allocation of remote I/O memory for Smart Slaves is also described here.
3-1 Common Slave Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3-1-1 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3-1-2 MS and NS Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3-2 DeviceNet Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3-2-1 Overview of Remote I/O Allocations for Smart Slaves . . . . . . . . . . 34
3-2-2 I/O Allocations for Smart Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3-2-3 I/O Allocation with the Configurator (Ver. 2.@ or Later). . . . . . . . . 42
31
Common Slave Specifications Section 3-1

3-1 Common Slave Specifications

3-1-1 Communications Specifications
Item Specifications
Communications protocol DeviceNet
Supported connections (communications)
Connection forms Combination of multi-drop and T-branch connections (for trunk or branch lines)
Baud rate 500 kbps, 250 kbps, or 125 kbps
Communications media Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line)
Communications distances Baud rate Network length Branch line length Total branch line
Communications power supply
Max. number of nodes 64 nodes (including Configurator when used)
Max. number of Slaves 63 Slaves
Communications cycle time Without Configurator: 16 Input Slaves (16-pt)
Error control CRC error check
Remote I/O: Master-Slave connection
(Poll/Bit-Strobe/COS/Cyclic)
Conform to DeviceNet specifications.
length
500 kbps 100 m max (100 m max) 6 m max. 39 m max.
250 kbps 250 m max (100 m max) 6 m max. 78 m max.
125 kbps 500 m max (100 m max) 6 m max. 156 m max.
Values in parentheses indicate the length when Thin Cables are used.
11 to 25 V DC
16 Output Slaves (16-pt) Baud rate of 500 kbps: Cycle time: 9.3 ms
3-1-2 MS and NS Indicators
This section describes the meanings of MS and NS indicators for the Slave Units.
The MS (Module Status) indicator displays the status of a node on the net­work.
The NS (Network Status) indicator displays the status of the entire network.
The MS and NS indicators can be green or red and they can be ON, flashing, or OFF.
Indicator Color Status Definition Meaning
MS Green Lit Device operational Normal operating status.
Red Lit Unrecoverable fault Unit hardware error (watchdog timer error).
Flashing Minor fault Switch settings incorrect, etc.
--- Not lit No power Power is not being supplied to the Slave Unit. Waiting for initial processing to start. The Unit is being reset.
32
Common Slave Specifications Section 3-1
Indicator Color Status Definition Meaning
NS Green Lit Online/connected Network is operating normally (communications
Flashing Online/ not connected Network is operating normally, but communica-
Red Lit Critical link failure Communications error (Unit has detected that
Flashing Connection time-out Communications time-out.
--- Not lit Not powered/Not online Checking for node address duplication at the
established).
tions have not been established.
network communications are not possible). Node address duplication Bus Off error
Master. Switch settings are incorrect. Power supply is OFF.
33
DeviceNet Remote I/O Communications Section 3-2

3-2 DeviceNet Remote I/O Communications

This section describes how DRT2-slave data can be allocated for remote I/O communications with the Master Unit.
3-2-1 Overview of Remote I/O Allocations for Smart Slaves
Unlike the DRT1-series Slaves, the DRT2-series Smart Slaves store data internally. When necessary, the user can specify which data is allocated for remote I/O communications with the Master Unit. (Allocation is not required, however, for the default I/O data.)
Master
Specify which data is allocated where.
Smart Slave
A
Data is
B
stored internally.
C
• Data can be specified in either of the two ways described below.
• Select a data pattern (fixed combi­nation) using the Slave’s default connection path setting.
Master
A
B
Smart Slave
Specified data pattern allocated.
A
B
A
Select from predetermined
C
data patterns.
B
C
• Select individual data as desired using the Master’s connection set­ting.
Master
A
C
Smart Slave
Specified data allocated.
A
B
C
Select the required data.
Smart Slave I/O Allocation Methods
34
Either fixed allocation or user allocation is possible.
Only possible with user allocation and if the Master Unit is a CS/CJ-series DeviceNet Unit.
Smart Slave data can be allocated to the Master Unit for remote I/O communi­cations in any of the ways described below.
DeviceNet Remote I/O Communications Section 3-2
Fixed Allocation
Type Allocating default I/O data Allocating selected I/O data (patterns)
Description I/O data is allocated to fixed addresses in the
Master Unit in order of node address.
Method Configurator not used. Configurator used to select I/O data (pattern).
Configuration
Master CPU Unit
Allocation
I/O memory
A
B
Smart Slave
I/O data
Node address order
A
B
Selected I/O data (pattern) is allocated to fixed addresses in the Master Unit.
Select I/O from the Configurator’s Edit Device Parameters Window for t he Slave.
Master CPU Unit
Master CPU Unit
I/O memory
Node
A
address
C
order
Smart Slave
I/O data (patterns)
A
(Default)
B
Allocation
A
C
D
E
Select I/O data pattern (fixed combination).
Setting method
None In the Slave’s Edit Device Parameters Window,
with Configurator
User Allocation
Type Allocating default I/O data Allocating selected I/O data (patterns)
Description I/O data is allocated to user-defined addresses
Method Configurator used to allocate user-defined
Configuration
in the Master Unit.
addresses.
Master CPU Unit
I/O memory
A
Allocated to
B
user-defined addresses.
Smart Slave
I/O data
A
Allocation
B
Allocate I/O to user­defined addresses using the Configurator.
select the data in the Slave from the pull-down menu for the Slave’s default connection path, and execute download.
Selected I/O data (pattern) is allocated to user­defined addresses in the Master Unit.
1. Configurator used to select I/O data (pattern).
2. Selected data allocated to user-defined mem­ory addresses.
Select I/O from the Configurator’s Edit Device Parameters Window for
Master CPU Unit
I/O memory
A
C
Smart Slave
I/O data (patterns)
the Slave, and allocate to user-defined addresses.
2. Allocate to user-defined addresses.
A
(Default)
B
A
C
D
E
1. Select I/O data pattern (fixed combination).
Setting method with Configurator
In the Master’s Edit Device Parameters Win­dow, allocate Slave I/O.
1. In the Slave’s Edit Device Parameters Window, select the data in the Slave from pull-down menu for the Slave’s default connection path, and execute download.
2. In the Master’s Edit Device Parameters Win­dow, allocate Slave I/O.
35
DeviceNet Remote I/O Communications Section 3-2
Type Selecting I/O data and allocating to user-defined addresses
Description Select up to two types of I/O data, and allocate to user-defined addresses in the Master Unit.
Method 1. Select up to two types of I/O data using the Configurator.
2. Allocate the selected I/O data to user-defined addresses in the Master Unit.
Configuration
Allocation
Master CPU Unit
I/O memory
A
Allocate to user­defined addresses.
E
Allocate to user­defined addresses.
With the Configurator, for each connection, select data and allocate to user-defined addresses.
Setting method with Configurator
1. Specify two connections.
2. Specify each connection path.
Note: Up to two connections can be specified from
CS/CJ-series Master Units.
1. In the Master’s Edit Device Parameters Window, select the Smart Slave to be set, and specify the connection in the Advanced Setting Window. Select the I/O data (pattern) in the connection path
Smart Slave
Data
A
B
C
D
E
setting.
2. In the Master’s Edit Device Parameters Window, allocate Slave I/O.
Note The above method can be used only if the Master Unit is a CS/CJ-series
DeviceNet Unit. When using a CVM1/CV-series DeviceNet Master Unit, a C200HX/HG/HE/HS DeviceNet Master Unit, or another company’s Master Unit, select the I/O data from the pull-down menu for the default connection path in the Slave’s Edit Device Parameters Window.
3-2-2 I/O Allocations for Smart Slaves
General-purpose Slaves and Environment-resistive Slaves
1,2,3... 1. Allocating only real I/O data (default)
36
DRT2-slave data can be allocated for remote I/O communications with the Master Unit using any of the following methods.
2. Allocating real I/O data and Generic Status Flags together
3. Allocating real I/O data and Generic Status Flags independently
Method 2 can be performed by selecting the I/O data and flags from the pull-down menu for the Slave’s default connection path using the Configu­rator.
Method 3 can be performed by allocating real I/O data and Generic Status Flags independently in the Master’s connection path using the Configura­tor. (This method can be used only with CS/CJ-series Master Units.)
DeviceNet Remote I/O Communications Section 3-2
Example of Allocation Using Method 2
Master CPU Unit
15 8 7 0
IN Area
DRT2-series Slave
Status
Status: 8 points
Node address 1
Real inputs: 16 points
15
14 13
Real inputs (e.g., 16 points)
0 1
The Generic Status Flags are as follows:
Bit Contents
0 Basic Unit's I/O Power Status Flag
0: I/O power supply ON 1: I/O power supply OFF
1 Expansion Unit's I/O Power Status Flag
0: I/O power supply ON 1: I/O power supply OFF
2 Network Power Voltage Drops Flag
0: Normal (Higher than set monitor value) 1: Error (Same as or lower than set monitor value)
3 Unit Maintenance Flag
0: Within range (Lower than set monitor value) 1: Out of range (Same as or higher than set monitor value)
4 Sensor Disconnected Flag (Screw-less Clamp Input and I/O Terminals, and
Environment-resistive Input Terminals only) or External Load Disconnected Flag (Screw-less Clamp Output and I/O Terminals only)
0: Connected (all inputs connected) 1: Disconnected (at least one input is not connected) Cumulative Counter Flag (Analog Input Terminals and Temperature Input
Terminals) 0: Normal 1: Error (monitoring set value exceeded)
5 Short-circuited Flag (Sensor Connector Terminals, Screw-less Clamp Input
and I/O Terminals, and Environment-resistive Input Terminals only), or External Load Short-circuited Flag (Environment-resistive Output Termi­nals, Sensor Connector Terminals, I/O Units only)
0: Normal I/O (all I/O points normal) 1: Short-circuited I/O (one or more I/O point short-circuited) Unit Error Flag (Analog Input Terminals and Temperature Input Terminals) 0: Normal 1: Error (Data conversion stopped during to error in Unit.)
See note 1.
37
DeviceNet Remote I/O Communications Section 3-2
Bit Contents
6 Operation Time Over Flag
0: Within range (all output-to-input sets are lower than set monitor value)
1: Out of range (one or more output-to­input set is same as or higher than set monitor value)
7 Connected Component Maintenance Flag
0: Within range (all I/O points are lower than set monitor value) 1: Out of range (one or more I/O point is same as or higher than set monitor
value) Cold Junction Compensator Off-wire Flag 0: Normal 1: Error (off-wire connected)
Note 1. Bits 00 and 01 (I/O power supply voltage statuses 1 and 2, respectively)
indicate the status of the system power supply, as follows
Bit Name System configuration
0Basic Unit's
I/O Power Status Flag
1 Expansion
Unit's I/O Power St a­tus Flag
Basic Unit
only
(Expansion
Unit not
used)
Basic Unit I/O power supply Basic Unit I/O
--- (Not used.) Expansion
Basic Unit
Input
Terminal and
Expansion
Unit Input
Ter mina l
See note 2.
Basic Unit
Output or
Input
Terminal and
Expansion
Unit Output
Termina l
power supply
Unit output power supply
:
Basic Unit
Output
Terminal and
Expansion
Unit Input
Ter mina l
Basic Unit out­put power supply
Expansion Unit input power supply
Allocating Only Real I/O Data (Default)
2. The Operation Time Over Flag functions only for Slaves with both inputs and outputs. It does not function for Slaves with only IN or OUT areas.
Example 1: Using 16 inputs.
IN Area
15 0
Address header Allocated 16 inputs.
Example 2: Using 16 outputs.
OUT Area
15 0
Address header Allocated 16 outputs.
Example 3: Using 32 inputs.
IN Area
15 0
Address header Allocated 32 inputs.
Address header + 1
38
DeviceNet Remote I/O Communications Section 3-2
Example 4: Using 16 inputs and 8 inputs (Expansion Unit).
IN Area
15 0
Address header Allocated 16 inputs.
Address header + 1
Example 5: Using 16 outputs and 8 inputs (Expansion Unit).
15 0
Address header Allocated 16 outputs.
Address header
Allocated 8 inputs.
OUT Area
IN Area
70
Allocated 8 inputs.
Allocating Real I/O Data and Generic Status Flags Toget h e r
The Generic Status Flags are for providing notification of the status of the Smart Slave to the host. They are allocated to the Master Unit’s IN Area and consist of 8 bits.
Example 1: Using 16 inputs.
IN Area
15 0
Address header Allocated 16 inputs.
Address header + 1
Generic Status Flags
Example 2: Using 16 outputs.
OUT Area
15 0
Address header Allocated 16 outputs.
IN Area
70
Address header
Generic Status Flags
Example 3: Using 32 inputs.
IN Area
15 0
Address header Allocated 32 inputs.
Address header + 1
Address header + 2
Generic Status Flags
Example 4: Using 16 inputs and 8 inputs (Expansion Unit).
IN Area
15 0
Address header Allocated 16 inputs.
Address header + 1
Generic Status Flags
Allocated 8 inputs.
Example 5: Using 16 outputs and 8 inputs (Expansion Unit).
OUT Area
15 0
Address header Allocated 16 outputs.
39
DeviceNet Remote I/O Communications Section 3-2
IN Area
15 8 7 0
Address header
Generic Status Flags
Allocated 8 inputs.
Allocating Real I/O Data and Generic Status Flags Individually
Instead of allocating real I/O and Generic Status Flags together, they can be allocated individually. This is only possible, however, if the Master Unit is a CS/CJ-series DeviceNet Unit and the Configurator is used.
15 0
I/O Area I/O Area
:
Status Area
Status Area
Node address 00 Node address 01
Node address 00
Node address 01
Analog Slaves Data that is allocated for remote I/O communications can be selected using
any of the following methods.
1,2,3... 1. Allocating only analog values (default I/O data)
2. Allocating a fixed I/O data pattern
3. Allocating user-defined I/O data
With methods 2 and 3, the Configurator is used to specify the I/O data that is to be allocated. An outline of the methods used is given below.
Allocating Fixed I/O Data Patterns
Allocating User-defined I/O Data
There are eleven fixed I/O data patterns. The Configurator is used to select the desired I/O data pattern from the pull-down menu for the Slave's default connection path in the Edit Device Parameters Window.
Using the Configurator, the desired combination of I/O data can be allocated for the Master Unit connection. The desired connection is selected from the Master's Edit Device Parameters Window. Up to two of the eleven I/O data patterns can be selected for the connection paths of the connection.
Note If analog data is allocated to a COS connection, a frame will be sent to the
host each analog conversion cycle. This will cause frames to be sent fre­quently, increasing network traffic and possibly affecting the communications cycle time.
The Generic Status Flags that are allocated are listed in the following tables.
Analog Terminals
Bit Name Description
0 --- Not supported (always 0).
1 --- Not supported (always 0).
2 Network Voltage
Monitor Flag
3 Unit Conduction
Time Monitor Flag
4 Cumulative Counter
Flag
5 Unit Error Flag Turns ON when analog conversion stops due to an
6 --- Not supported (always 0).
7 --- Not supported (always 0).
ON as long as the network power supply remains below the monitoring set value.
Turns ON when the time that power is supplied to the Unit exceeds the monitoring set value.
Turns ON when any of the cumulative values exceeds the monitoring set value.
error in the Unit.
40
DeviceNet Remote I/O Communications Section 3-2
Temperature Input Terminals
Bit Name Description
0 --- Not supported (always 0).
1 --- Not supported (always 0).
2 Network Voltage
Monitor Flag
3 Unit Conduction
Time Monitor Flag
4 Temperature Data
Cumulative Counter Flag
5 Unit Error Flag Turns ON when temperature conversion stops due to
6 --- Not supported (always 0).
7 Cold Junction Com-
pensator Off-wire Flag
The data (patterns) listed in the following tables can be allocated. Ether the default setting can be used or allocations can be made in the master using the Configurator
I/O Data for Analog Input Terminals (DRT2-AD04/AD04H)
Analog Data 1 (8 input bytes) (default)
Analog Data 2 (8 input bytes)
Generic Status Flags (1 input byte)
Top/Valley Detection Timing Flags (2 input bytes)
Analog Status Flags (4 input bytes)
Analog Data 1 + Analog Data 2 (16 input bytes)
Top/Valley Detection Timing Flags + Generic Status Flags (3 input bytes)
Analog Status Flags + Generic Status Flags (5 input bytes)
Analog Data 1 + Top/Valley Detection Timing Flags (10 input bytes)
Analog Data 1 + Top/Valley Detection Timing Flags + Generic Status Flags (11 input bytes)
Hold Flags (1 output byte)
ON as long as the network power supply remains below the monitoring set value.
Turns ON when the time that power is supplied to the Unit exceeds the monitoring set value.
Turns ON when any of the cumulative values exceeds the monitoring set value.
an error in the Unit.
Turns ON when the cold junction compensator is dis­connected. (DRT2-TS04T only)
Data (patterns)
I/O Data for Temperature Input Terminals (DRT2-TS4T/TS4P)
Data (patterns)
Temperature Data 1 (8 input bytes) (default)
Temperature Data 1, 1/100 Display (16 input bytes)
Temperature Data 2 (8 input bytes) (default)
Temperature Data 2, 1/100 Display (16 input bytes)
Generic Status Flags (1 input byte)
Top/Valley Detection Timing Flags (2 input bytes)
Analog Status Flags (4 input bytes)
Temperature Data 1 + Temperature Data 2 (16 input bytes)
Temperature Data 1 + Temperature Data 2, 1/100 Display (32 input bytes)
Top/Valley Detection Timing Flags + Generic Status Flags (3 input bytes)
Analog Status Flags + Generic Status Flags (5 input bytes)
Temperature Data 1 + Top/Valley Detection Timing Flags (10 input bytes)
Temperature Data 1, 1/100 Display + Top/Valley Detection Timing Flags (18 input bytes)
41
DeviceNet Remote I/O Communications Section 3-2
Data (patterns)
Temperature Data 1 + Top/Valley Detection Timing Flags + Generic Status Flags (11 input bytes)
Temperature Data 1, 1/100 Display + Top/Valley Detection Timing Flags + Generic Status Flags (19 input bytes)
Hold Flags (1 output byte)
3-2-3 I/O Allocation with the Configurator (Ver. 2.@ or Later)
Allocating Selected I/O Data (Patterns)
Procedure Using the Configurator, set the default connection path in the Slave’s Edit
1,2,3... 1. Turn ON the power for the DRT2-series Smart Slave.
In the Slave’s Edit Device Parameters Window, select the required data from the pull-down list (default connection path setting) and execute download.
When performing user-defined allocation, in addition to the above, allocate Slave I/O in the Master’s Edit Device Parameters Window.
Note Perform I/O allocation using this method if the Master Unit is a CVM1/CV-
series DeviceNet Master Unit, a C200HX/HG/HE/HS DeviceNet Master Unit, or another company’s Master Unit.
The setting example below is for allocating I/O data and Generic Status Flags for a General-purpose Slave. For details on the setting method for Analog Slaves, refer to 7-4-2 I/O Data Allocation Methods.
Device Parameters Window. Turn ON the power for the PLC connected to the Smart Slave and change the mode of the PLC to PROGRAM mode.
2. Click the right mouse button over the icon of the corresponding DRT2-se­ries Smart Slave in the Network Configuration Window, and select Param- eters and Edit to display the Edit Device Parameters Window.
3. Click the General Tab and select the desired setting from the pull-down menu under the Default Connection Path field.
42
4. Click the Download Button and then click the Reset Button.
5. Click the OK Button.
DeviceNet Remote I/O Communications Section 3-2
Default Connection Path (General-purpose Slave)
Selection IN/OUT Input Unit Output Unit I/O Unit
Setting 1 (I/O Data) (default setting)
Setting 2 (I/O Data+Status)
IN data Real input data None Real input data
OUT data None Real output
IN data Real I/O data +
status informa­tion
OUT data None Real output
data
Status informa­tion
data
Real output data
Real input data + status infor­mation
Real output data
Allocating User­defined Data
This method is possible only with a CS/CJ-series DeviceNet Unit and user­defined allocations.
In the Master’s Edit Device Parameters Window, select the Smart Slave to be set, and specify the connection in the Advanced Setting Window. Select the I/O data (pattern) in the connection path setting.
In the Master’s Edit Device Parameters Window, allocate Slave I/O.
Note 1. For details on connections and connection paths, refer to Appendix B De-
viceNet Connections in the DeviceNet Units Operation Manual (W380).
2. Master Unit settings take precedence and so it is not necessary to set the Slave’s default connection path.
The setting example below is for allocating 16 inputs, 8 outputs, and Generic Status Flags for a General-purpose Slave. For details on the setting method for Analog Slaves, refer to 7-4-2 I/O Data Allocation Methods.
Example: Using 16 inputs, 8 outputs, and status information.
Address 15 0
CIO 3200 8 outputs
:
CIO 3300 16 inputs
:
CIO 3500 Generic Status Flags
43
DeviceNet Remote I/O Communications Section 3-2
Procedure
1,2,3... 1. In the Network Configuration Window, select the Master Unit, and double-
click or click the right mouse button and select Parameter – Edit – Gener- al, and then select the Smart Slave to be set.
2. Click the Advanced Setup Button, click the Connection Tab, and select User Setup. Select Use Poll Connection and Use COS Connection and then select output data, input data, and generic status for the respective connection paths. In this example, the IN size for COS connection is set to generic status, the IN size for poll connection is set to input data, and OUT size for poll connection is set to output data.
44
3. Click the OK Button.
DeviceNet Remote I/O Communications Section 3-2
Note If there are checks in the checkboxes but the connection path settings are left
blank, the following settings will be made automatically.
IN (Smart Slave to Master Unit) OUT (Master Unit to Smart Slave)
Poll input data output data
Bit-Strobe input data Not set.
COS generic status Not set.
Cyclic generic status Not set.
Note For Slaves with outputs (and consequently output size settings), if the poll and
COS connections are used at the same time, the output size settings for poll and COS connections must be set to the same value. Perform this setting with the Configurator using the method below. (The default output size setting for the COS connection is 0.)
Click the right mouse button over the Slave to be set, select Property, click the I/O Information Tab, and then click the Edit Button. In the Edit I/O Size Window, set the OUT Size for the poll and COS connections to the same value.
4. Click the I/O Allocation (IN) Tab and edit the I/O allocations. Select the Smart Slave to be set and click the Edit Button to display the Edit I/O Allocate Window. Set the Poll settings (indicates input data) to block 1, allocated 3300. Set the COS settings (indicates generic data) to block 2, allocated 3500.
45
DeviceNet Remote I/O Communications Section 3-2
5. Click the OK Button.
6. In the same way as above, click the I/O Allocation (OUT) Tab and edit the I/O allocations. Set to block 1, allocated 3200.
46
7. Return to the General Tab Page and click Download.
Note When Auto allocation as is registered. is selected in the General Tab Page,
each time the connection path is set, a message will be displayed indicating that the current I/O allocations have been deleted because the connection has been changed. To set the connection path, deselect Auto allocation as is registered. before registering the Slaves.
SECTION 4
Functions of All Slaves, General-purpose Slaves, and
Environment-resistive Slaves
This section describes the functions of DRT2-series Smart Slaves and their applications, including operation procedures using a DeviceNet Configurator.
4-1 Maintenance Mode Window and Main Window . . . . . . . . . . . . . . . . . . . . . . 48
4-1-1 Normal Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4-1-2 Maintenance Mode Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4-1-3 Device Monitor Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4-2 Common Slave Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4-2-1 Automatic Baud Rate Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4-2-2 Network Power Supply Voltage Monitor . . . . . . . . . . . . . . . . . . . . . 53
4-2-3 Unit Conduction Time Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4-2-4 Slave Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4-2-5 I/O Comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4-2-6 Communications Error History Monitor . . . . . . . . . . . . . . . . . . . . . 59
4-2-7 Last Maintenance Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4-3 Functions of General-purpose Slaves and Environment-resistive Slaves . . . . 61
4-3-1 I/O Power Status Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4-3-2 Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4-3-3 Power ON Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4-3-4 Contact Operation Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4-3-5 Total ON Time Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4-3-6 Operation Time Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4-3-7 Sensor Disconnected Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4-3-8 Detection of Sensor Power Short-circuit . . . . . . . . . . . . . . . . . . . . . 74
4-3-9 External Load Short-circuit Detection . . . . . . . . . . . . . . . . . . . . . . . 76
4-3-10 External Load Disconnected Detection . . . . . . . . . . . . . . . . . . . . . . 80
47
Maintenance Mode Window and Main Window Section 4-1

4-1 Maintenance Mode Window and Main Window

The OMRON DeviceNet Configurator (Ver. 2.20 or higher) is provided with two Network display windows, consisting of the standard Main Window and a Maintenance Mode Window. The windows can be easily switched by clicking
the icon or selecting maintenance mode under the View Menu.
4-1-1 Normal Window
The Normal Window is displayed when the DeviceNet Configurator is started. It has a while background. Normally this window is used to set parameters and other settings. Double-click any Slave in the Normal Window to enable setting and editing device parameters for the Slave. Refer to 4-2 Common Slave Functions for information on setting and editing Slave functions. Also refer to the setting methods for the functions listed for each Slave.
Normal Window
48
Maintenance Mode Window and Main Window Section 4-1
Device Parameter Editing Window
This window is used to set and edit settings for functions. Double-click any Slave or select the slave, right-click, and select Parameter - Edit from the popup menu.
4-1-2 Maintenance Mode Window
The Maintenance Mode Window is different from the Main Window and is used to easily monitor information on the DRT2-series Smart Slaves. The win-
dows can be easily switched by clicking the icon or selecting maintenance mode under the View Menu. The Maintenance Mode Window is displayed
with a pale blue background.
The Maintenance Mode Window displays information on the DRT2-series Smart Slaves in the Maintenance Information Window. Open the Maintenance Mode Window when to access status information on any of the Smart Slaves.
In the Network Configuration Window, when an error is detected in any of the Slaves' settings, a yellow warning icon indicating the error details will be dis­played next to the corresponding Slave icon. This function allows the user to know the status of each device, the maintenance period, and the location where an error has been detected.
Note The Maintenance Mode Window is not refreshed continuously. The status that
is display is read when the network is uploaded. To see the most recent sta­tus, click the refresh maintenance information icon to read the current status information, or use the Device Monitor Window to see continuously updated Smart Slave status. (Refer to 4-1-3 Device Monitor Window.)
49
Maintenance Mode Window and Main Window Section 4-1
Maintenance Mode Window
Refresh maintenance information icon Rereads the current maintenance information.
Warning icon Maintenance Information Window
Maintenance Information Window
Double-click the icon of the DRT2-series Smart Slave that is indicated by the warning icon to display the Maintenance Information Window for the individual Slave. Refer to the section on the Maintenance Information Window for each Slave for details on the information that is displayed.
Maintenance information Refreshes the
maintenance information for the current Slave.
Refreshes the maintenance information for the current Slave.
The Smart Slave's maintenance counter can be saved in flash memory. Normally, the contact operation counter records the value every six minutes, so the number of operations may not be recorded accurately, depending on when the contact's power is turned OFF.
50
Maintenance Mode Window and Main Window Section 4-1
OUT Tab and IN Tab
According to the maintenance information, select the OUT Ta b, IN Ta b , o r Operation Time Tab to view more detailed information.
The locations where the monitor value has been exceeded are displayed with a warning icon, enabling immediate recognition of the contacts requiring maintenance
Displays the maintenance counter reading.
4-1-3 Device Monitor Window
The Device Monitor Window enables easy monitoring of information on Smart Slaves. The same information is displayed as for the Maintenance Mode Win­dow, but the displayed information is continuously updated online between the Slave and Configurator by explicit messages. Continuous updating is not per­formed for the Maintenance Mode Window. Use the Device Monitor Window whenever it is necessary to check the most recent Smart Slave information.
The Device Monitor Window can be displayed when the Configurator is online by right-clicking and selecting section on the Maintenance Information Window for each Slave for details on
the information that is displayed.
Monitor from the popup menu. Refer to the
51
Common Slave Functions Section 4-2
Device Monitor Window
Note Large quantities of data are exchanged between the Slave and Configurator
to enable the device monitor function. If a toolbus connection is used for the Configurator, the time required to refresh all of the information depends on the Slave and can be very long. We thus recommend using a DeviceNet Board (PCMCIA, PCI, or ISA) to connect the Configurator whenever using the device monitor function. Refer to Section 2 Installation in the DeviceNet Configurator Operation Manual (Cat. No. W382) for details. A toolbus connection is used when a CS1W-DRM21 or CJ1W-DRM21 Master Unit is used and the Configurator is connected via RS-232C.

4-2 Common Slave Functions

The functions common to all DRT2-series Slaves and their usage procedures are described here.
4-2-1 Automatic Baud Rate Recognition
The Smart Slaves are automatically set to the baud rate of the Master Unit. Therefore, the baud rate does not require being set for each Unit using the DIP switch as with previous models.
After the power is turned ON, as soon as communications are established with the Master Unit, the baud rate is set, and the setting is saved until the next time the power is turned ON.
Note When changing the baud rate of the Master Unit, always turn the Slave's Net-
work power supply OFF and ON again. The Slave's baud rate will be automatically set to the Configurator's baud rate when the Configurator is used to set a Smart Slave when there is no Master. To change the baud rate, turn the Smart Slave's Network power supply OFF and ON again.
52
Common Slave Functions Section 4-2
4-2-2 Network Power Supply Voltage Monitor
Function Overview The present, bottom, and peak values of the Network power voltage can be
recorded in the Slave. The monitor voltage (factory setting: 11 V) can be maintained in the Slave and the Network Power Voltage Error Flag in the Sta­tus Area will be turned ON when the voltage drops below the set monitor value. The current, minimum, and maximum values of the Network power volt­age, and the Network Power Voltage Error Flag can be read from the Configu­rator. The monitor voltage can be set using the Configurator.
Note 1. The communications power voltage of the actual DeviceNet is 11 V mini-
mum, so if the communications power voltage drops below 11 V, the oper­ation for reading the measurement values using the Configurator may not function properly.
2. The maximum and minimum Network power voltages are cleared when the Network power is turned OFF.
Setting Using the DeviceNet Configurator
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the General Ta b.
4. Enter the desired value in the Network Power Voltage field. (The default value is 11 V.)
5. Click the Download Button, and then click the Reset Button to reset the Unit.
6. Click the OK Button.
53
Common Slave Functions Section 4-2
4-2-3 Unit Conduction Time Monitor
Function Overview The total ON time (unit: 0.1 hrs) of the Slave's internal circuit power can be
calculated and recorded. (The Configurator or explicit messages can be used to read the information.)
The monitor value can be maintained in the Slave and the Unit Maintenance Flag in the Status Area will be turned ON when the total time reaches the set monitor value. The total ON time can be read using the Configurator or explicit messages.)
• Measured time: 0 to 429496729 hours (stored data: 00000000 to FFFFFFFF Hex)
• Measuring unit: 0.1 hr
DeviceNet
Slave
Recorded in Slave
Total ON time
Setting Using the DeviceNet Configurator
Total ON time
Internal circuit power
ON
OFF
Note The Unit conduction time monitor calculates the total time that the Smart
Slave's Network power supply is ON. The total time is not calculated when the power is OFF.
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
54
Common Slave Functions Section 4-2
3. Select the General Ta b.
4. Enter the desired value in the Unit Conduction Time field.
5. Click the Download Button, and then click the Reset Button to reset the Unit.
6. Click the OK Button.
4-2-4 Slave Comments
Function Overview The user can assign and record a name or comment for every Unit (up to 32
characters). The Configurator or explicit messages can be used to read and write these Unit names (comments).
Configurator
Unit comment (name)
Recorded in Unit
What is this Unit used for?
Setting Using the DeviceNet Configurator
Setting Method 1
DeviceNet Network
Slave
Unit comment (name)
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
Either of the following two settings methods can be used.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
55
Common Slave Functions Section 4-2
3. Select the General Ta b.
4. Enter the desired name in the Comment field.
5. Click the Download Button, and then click the Reset Button to reset the Unit.
6. Click the OK Button.
Setting Method 2 The procedure for this setting method is the same from both the Main Window
and the Maintenance Mode Window.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. Click the right mouse button over the icon of the DRT2-series Smart Slave to be set in the Network Configuration Window, and select Change Device Comment.
56
3. The following window will be displayed. Enter the desired name.
4. Click the OK Button.
5. Click the right mouse button over the icon of the DRT2-series Smart Slave to be set, and select Parameter and Download.
Common Slave Functions Section 4-2
4-2-5 I/O Comments
Function Overview The user can assign a name for each of the Unit's I/O contacts (up to 32 char-
acters) and record it in the Unit. The connected device can be checked for each I/O contact, allowing faulty devices to be identified during remote main­tenance. The Configurator or explicit messages can be used to read and write the names (comments) of the connected devices.
Configurator
Connected device
DeviceNet Network
Slave
Connected device comment
Recorded in Slave
Connected device
comment
What is this connected device used for?
Setting Using the DeviceNet Configurator
Setting Method 1
Either of the following two setting methods can be used.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, double-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Pa- rameter and Edit to display the Edit Device Parameters Window.
3. Select the IN or OUT Tab. The following window will be displayed. Enter the desired name.
57
Common Slave Functions Section 4-2
4. Double-click the I/O Comment field for the connected device that is to be assigned a name (comment). The following window will be displayed. En­ter the desired name and click the OK Button.
5. Select the General Tab, click the Download Button, and then click the Re- set Button to reset the Unit.
6. Click the OK Button.
Setting Method 2 The procedure for this setting method is the same from both the Main Window
and the Maintenance Mode Window.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. Double-click or click the right mouse button over the icon of the DRT2-se­ries Smart Slave to be set in the Network Configuration Window, and select Edit I/O Comment.
58
3. The following type of window will be displayed. Select the terminal which is to have a name (comment) assigned.
Common Slave Functions Section 4-2
Note With Analog Terminals, comments input using setting method 1 are not auto-
matically reflected in this window. Before saving the comments to an I/O com­ment file, make the settings using setting method 2.
4. Double-click the Comment field of the terminal to be set and enter the de­sired name.
5. Click the OK Button.
6. Double-click or click the right mouse button over the icon of the DRT2-se­ries Smart Slave to be set, and select Parameter and Download.
4-2-6 Communications Error History Monitor
Function Overview The error status information (communications error code, communications
power voltage when the error occurred) for the last four communications errors that occurred can be recorded in the Slave.
(The Configurator can be used to read the communications error history.)
DeviceNet Network
Slave
First error Second error Third error
Fourth error
Recorded in Slave
What happened to cause a communications error?
Status when communications error occurred
59
Common Slave Functions Section 4-2
Checking Using the DeviceNet Configurator
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
The method used to check error information from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
2. Click the right mouse button over the icon of the DRT2-series Smart Slave to be set in the Network Configuration Window, and select Monitor.
3. Select the Error History Tab in the Monitor Device Window. The commu­nications error history for the last four errors that occurred will be dis­played, as shown in the following window. To display the most recent error history, click the Update Button.
Note From the Maintenance Mode Window, double-click the Slave icon, and select
the Error History Tab from the Maintenance Information Window.
4-2-7 Last Maintenance Date
Function Overview This function enables the date on which maintenance was last performed to
be written to the Unit. This means that the timing for future maintenance can be judged more easily. The date can be written using the Configurator.
60

Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3

Setting Using the DeviceNet Configurator
1,2,3... 1. From the Main Window, double-click the icon of the Smart Slave to be set
to display the Edit Device Parameters Window. (From the Maintenance Mode Window, click the right mouse button over the icon of the Smart Slave to be set and select Parameter and Edit to display the Edit Device Parameters Window.)
2. Click the General Tab, and select the desired date from the pull-down menu for the Last Maintenance Date field. (Click the Today Button to enter the current date.)
3. Click the Download Button, and then click the Reset Button to reset the Unit.
4. Click the OK Button.
4-3 Functions of General-purpose Slaves and Environment-
resistive Slaves
4-3-1 I/O Power Status Monitor
Function Overview This function is used to detect whether the I/O power is ON.
When the I/O power supply is turned OFF, the Basic Unit I/O Power Voltage Status Flag or Expansion Unit I/O Power Status Flag in the Status Area is turned ON. (The Configurator or explicit messages can be used to read the information.)
Slave
I/O power voltage
I/O power
Sensor
Monitors whether I/O power is ON.
61
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Note The value for detecting a low voltage for the I/O power cannot be set.
Checking Using the DeviceNet Configurator
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
The method used to check information from the DeviceNet Configurator (Ver.
2.20 or later) is described here.
2. From the Maintenance Mode Window, double-click the icon of the applica­ble DRT2-series Smart Slave in the Network Configuration Window to dis­play the Maintenance Information Window. The I/O power is not being supplied if the Input Power Supply Error or Output Power Supply Error items are selected.
4-3-2 Input Filter
Function Overview Input values can be read several times during a set interval so that the input
value is enabled only when the value of all samples are the same. The input filter is applied to all of the inputs of the Unit.
ON Response Time (Variable from 0 to 100 ms)
When input data changes to ON, the input data is read four times for the period of the set interval (1/4 of 0 to 100 ms). If all values are ON, the input is turned ON. The ON timing is delayed according to the length of the ON response time.
The input filter can also be used to perform an ON delay operation (a delay for the ON response time is created when the input filter is enabled).
1
2
ON
OFF
4 3 2 1
Not all values are ON during the four
OFF
ON ON
OFF
Input data Input data
ON
OFF
samples, so the input is regarded as being OFF.
ON
OFF
ON
ON
OFF
ON delay time (= input filter time)
4 3
All values are ON
ON
samples, so the input is
during the four
ON
ON
regarded as being ON.
62
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
OFF Response Time (Variable from 0 to 65535 ms)
Setting Using the DeviceNet Configurator
When input data changes to OFF, the input data is read five times for the period of the set interval (1/5 of 0 to 65,535 ms). If all values are OFF, the input is turned OFF. The OFF timing is delayed according to the length of the OFF response time.
The input filter can also be used for ON/OFF delay operations.
To use a pulse shorter than the communications cycle time, set the OFF response time to a value longer than the communications cycle time. (If the input pulse is short, the input may remain ON.)
1
2
4 3
OFF
5
OFF
OFF
All values are OFF for all five samples, so the input is regarded as being OFF.
ON
OFF
Input data
ON
OFF
OFF
1
2
5
4 3
Not all values are OFF
ON
OFF OFF ON
during the five samples, so the input is regarded as being ON.
ON
OFF
OFF
Input data
ON
OFF
OFF
ON delay time (= input filter time)
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the IN Ta b . Enter a value for the ON response time and OFF response time, and then click the OK Button.
4. Select the General Tab, click the Download Button, and then click the Re- set Button to reset the Unit.
5. Click the OK Button.
63
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
4-3-3 Power ON Delay
Function Overview The I/O power is monitored, and input is stopped when the I/O power is OFF
and for 100 ms after the I/O power is turned ON (i.e., until the power supply becomes stable). This function prevents incorrect input caused by inrush cur­rent at startup from connected devices when the I/O power is turned ON. The Configurator or explicit messages can be used to enable or disable this func­tion.
Setting Using the DeviceNet Configurator
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the IN Ta b . Select Enable under the item for preventing malfunctions caused by inrush current at startup and click the OK Button.
4. Select the General Tab, click the Download Button, and then click the Re- set Button to reset the Unit.
5. Click the OK Button.
4-3-4 Contact Operation Counter
Function Overview The Contact Operation Counter is used to count the number of times each
input or output contact is changed from OFF to ON (maximum resolution 50 Hz) and record the total value calculated in the Slave. (The Configurator or explicit messages can be used to read the information.)
The monitor value can be set in the Slave, and when the set number of opera­tions is reached, the Connected Component Maintenance Flag in the Status Area will be turned ON. (The Configurator or explicit messages can be used to read the status of the Connected Device Maintenance Flag.)
• Counted operations: 0 to 4294967295 operations (stored data: 00000000 to FFFFFFFF Hex)
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Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
• Counting unit: One operation
Slave
Setting Using the DeviceNet Configurator
Recorded in the Slave
I/O power
Number of times output contact changes to ON.
123
OFFON
Number of operations
Output device (relay, etc.)
Note 1. The Contact Operation Counter and Total ON Time Monitor cannot be
used at the same time for a single contact. Select the function to be used under the Detection Mode heading.
2. The Contact Operation Counter will operate when the I/O power is ON only.
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the IN Ta b .
4. Double-click the I/O Comment field of the applicable contact to display the following window. Select Count under Detection Mode, enter a value in the
65
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Val u e field, and then click the OK Button.
5. After checking that the setting for the monitor value is reflected in the Edit Device Parameters Window, select the General Tab and click the Down- load Button.
6. Click the OK Button.
4-3-5 Total ON Time Monitor
Function Overview The total ON time for each I/O contact can be calculated (unit: s) and
recorded in the Slave. (The Configurator or explicit messages can be used to read the information.)
The monitor value can be set in the Slave, and when the set number of opera­tions is reached, the Connected Component Maintenance Flag in the Status Area is turned ON. (The Configurator or explicit messages can be used to read the status of the Connected Component Maintenance Flag.)
• Measured time: 0 to 4294967295 s (stored data: 00000000 to FFFFFFFF Hex)
• Measuring unit: s
Recorded in the Slave
Slave
Total ON time
Sensor
I/O power
Total ON time
Connected device
ON
OFF
Note 1. The Total ON Time Monitor and Contact Operation Counter cannot be
used at the same time for a single contact. Select the function to be used under the Detection Mode heading.
2. The Total ON Time Monitor operates when the I/O power is ON only.
3. The Total ON Time Monitor checks approximately every second whether the connected devices are ON. If the total ON time is calculated for ON times of less than a second, the measurement may not be accurate.
66
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Measurement for ON time of 0.5 s:
In Fig. 1, the actual ON time is 0.5 s × 3 = 1.5 s. The measurement will be taken once during this ON time, so the total ON time will be measured as 1 s.
Reading taken approximately every second.
ON OFF
0.5 s
Figure 1
In Fig. 2, the actual ON time is 0.5 s × 3 = 1.5 s. The reading will be taken twice during this ON time, so the total ON time will be measured as 2 s.
Reading taken approximately every second.
ON OFF
0.5 s
Figure 2
Measurement for ON time of 1.5 s:
In Fig. 3, the actual ON time is 1.5 s × 2 = 3 s. The measurement will be taken four times during this ON time, so the total ON time will be measured as 4 s.
Reading taken approximately every second.
Setting Using the DeviceNet Configurator
ON OFF
1.5 s
Figure 3
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
67
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
3. Select the IN Ta b .
4. Double-click the I/O Comment field of the applicable contact to display the following window. Select Time under Detection Mode and after entering a value in the Value field, click the OK Button.
5. After checking that the setting for the monitor value is reflected in the Edit Device Parameters Window, select the General Tab and click the Down- load Button.
6. Click the OK Button.
4-3-6 Operation Time Monitor
Function Overview
Remote I/O Terminal I/O Unit, Basic I/O Unit + Expansion Unit, Sensor Connector I/O Terminal, or Environment-resistive I/O Termina l
The Operation Time Monitor can measure the time from when the output con­tact in the Slave changes to ON to when the input contact changes to ON (unit: ms), and records the time in the Slave. (The Configurator or explicit messages can be used to read the information.)
The Operation Time Monitor allows the operating time to be measured pre­cisely without affecting the communications cycle. The monitor value can be set in the Slave, and when the set monitoring time is exceeded, the Operation Time Over Flag in the Status Area will be turned ON.
(The Configurator or explicit messages can be used to read the status of the Operation Time Monitor Flag.)
Note This function can be used only by Slaves that have I/O combinations, such as
a Basic I/O Unit plus an Expansion Unit. (This function cannot be used with the DRT2-@D08(-1) because an Expansion Unit cannot be connected.) For combinations in which the input and output numbers are the same (e.g., input No. 1 and output No. 1 or input No 8 and output No. 8), it measures the time from when the output turns ON until the input turns ON.
68
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Three-tier Terminal Block, Environment-resistive Termina l (DRT 2-@04CL(-1) Only) MIL Connector Terminal, or Screw-less Clamp Terminal
Note With the I/O-type monitoring function, when the operating time was refreshed
The points for measuring the operating time by contact I/O (ON/OFF) timing are the same as for earlier models, but with these Terminals the operating time can be monitored for any combination of contacts (IN-OUT, IN-IN, OUT­OUT) in the Slave. The trigger edge can be set for either ON to OFF or OFF to ON, and input and output numbers can be freely combined for flexible settings.
the subsequent status might be OFF even if the previous status was ON. With these Terminals, however, the ON status can be retained even when the oper­ating time is refreshed.
• Measured time: 0 to 65535 ms (stored data: 0000 to FFFF Hex)
• Measuring unit: ms
Sensor Connector I/O Terminal
Measured time
Input contact B (Example: Sensor)
Output contact A (Example: Cylinder)
Input contact B (Example: Sensor)
Recorded in Slave
ON
OFF
ON
OFF
Operating time
Output contact A (Example: Cylinder)
Problem? The robot is operating
abnormally.
Measured time
Note The precision of the measured time is ±6 ms when the ON delay is 0, and the
ON delay time is then added. The display resolution for the measured time (ON delay 10 ms: ±16 ms), is displayed in 2-ms units when the ON delay is 2 ms or less, and in the measuring unit of the set ON delay time when 3 ms or more. (If the ON delay is 5 ms, the display will be for 5 ms, 10 ms, 15 ms, and 20 ms.)
When using a Basic I/O Unit with an Expansion Unit, Sensor Connector I/O Terminal, or Environment-resistive I/O Terminal, be careful of the following point while making the settings.
Note 1. The Operation Time Monitor Flag is refreshed in real time, so even when
the set monitor value is exceeded and the Operation Time Monitor Flag is turned ON, the flag will turn OFF without being held if the time from when the next output changes to ON until the input changes to ON is within the set monitor value range. To precisely monitor when the monitor value is exceeded, set the flag in-
69
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
formation to be held in the ladder program.
Input
Output
Operation Time Flag
ON
OFF
ON
OFF
ON
OFF
Monitor value exceeded
Within monitor value range
Be careful of the following point when using a Unit that can use the operation time monitor function (i.e., Basic I/O Unit and Expansion Unit, Sensor Con­nector I/O Terminal, Three-tier Terminal Block, MIL Connector Terminal, or Screw-less Clamp Terminal).
2. The operating time is recorded as soon as the time has been measured from when the output changes to ON to when the input changes to ON. The time until the next output changes to ON, however, continues being measured internally, and the measurement value will be refreshed if the in­put changes to ON again before the next output changes to ON. (When an input occurs during the operation time for a reciprocating operation such as a cylinder, the measurement for the operating time (outward path) may be refreshed during the return time (return path). When an output changes to ON twice consecutively, and is followed by the input changing to ON, the time is measured from when the second output changes to ON until the input changes to ON.
Setting Using the DeviceNet Configurator
Output
Input
Operation Time Monitor
ON
OFF
ON
OFF
t1
t2
(Previous value)
t3
t1 t2 t3
Output
Input
ON
OFF
ON
OFF
Output; Input; Measures this time period.
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
Basic I/O Unit Combined with Expansion Unit, Sensor Connector I/O Terminal, or Environment­resistive I/O Terminal
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
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Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the Operation Time Ta b.
4. Double-click the Equipment Name field of the applicable device to display the following window. Enter the set value in the Operation Time field and click the OK Button.
5. Check that the value set in the Operation Time field is reflected in the Edit Device Parameters Window. Select the General Tab, click the Download Button, and then click the Reset Button to reset the Unit.
6. Click the OK Button.
Three-tier Terminal Block, MIL Connector Terminal, Screw-less Clamp Terminal
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
71
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
3. Select the Operation Time Ta b.
4. Double-click the Equipment Name field of the applicable device to display the following window. Enter the set value in the Operation Time field and select the monitor con­tact numbers for the starting point and ending point from the pull-down menu. The edge pattern can be set for monitoring at either the ON edge or the OFF edge. Finally click the OK Button.
5. Check that the value set in the Operation Time field is reflected in the Edit Device Parameters Window. Select the General Tab, click the Download Button, and then click the Reset Button to reset the Unit.
6. Click the OK Button.
4-3-7 Sensor Disconnected Detection
DRT2-ID@@C-1, DRT2-ID@@SLH-1, and DRT2-MD32SLH-1
Function Overview The I/O power supply current can be monitored and, for Screw-less Clamp
Terminals, a sensor disconnection will be detected if the current drops to
0.3 mA or lower per input connector (0.5 mA or lower, at 2 contacts per con-
nector for an Environment-resistive 16-point Input Terminal). The connector that has a disconnected contact can be checked according to the LED indica­tors on the Slave Unit. (Refer to the information below.)
72
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
When a disconnection is detected, the Sensor Disconnected Flag in the Sta­tus Area will turn ON. The Configurator or explicit messages can be used to read the status of the Sensor Disconnected Flag, and to read the status of the disconnected contact.
The Configurator or explicit messages can be used to enable or disable the sensor disconnected detection for each contact. (Sensor disconnected detec­tion is disabled in the factory setting.)
Disconnection of the signal line for three-wire sensors cannot be detected by this function. (A disconnected power line can be detected, however.) Discon­nection may be falsely detected for sensors (dry contacts such as limit switches or relays, and some other two-wire proximity sensors) with a current consumption of 0.3 mA or lower (0.5 mA or lower for Environment-resistive Terminals), so always disable this function when using these sensors.
Environment-resistive Terminal, Screw-less Clamp Terminal
Discon­nected
Is the sensor connected properly?
Sensor
I/O Indicator Status when Disconnection is Detected
Note 1. Refer to SECTION 6 Environment-resistive Slaves for the position of the
Setting Using the DeviceNet Configurator
Environment-resistive Terminals
-A
Flashing red.
-B
OFF
The box indicates the number of the corresponding connector.
actual indicator.
2. For 16-point Input Units, the settings cannot be set to both enable and dis­able within the same connector.
3. After a sensor disconnection is detected, a delay of up to 1.2 s will occur before the Sensor Disconnected Flag turns ON.
Screw-less Clamp Terminals
0 to 15
Flashing red.
The method used to set values from the DeviceNet Configurator (Ver. 2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window.
73
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the IN Ta b .
4. Double-click the name of the applicable terminal to display the following window. Enable off-wire (disconnection) detection and click the OK Button.
5. Select the General Tab, click the Download Button, and then click the Re- set Button to reset the Unit.
6. Click the OK Button.
4-3-8 Detection of Sensor Power Short-circuit
DRT2-ID@@C(-1), DRT2-ID16S(-1), DRT2-MD16S(-1), DRT2-ID@@SLH(-1), and DRT2-MD32SLH(-1)
Function Overview The sensor power supply current can be monitored, and when the current
reaches or exceeds 100 mA per input contact (two contacts per connector for a 16-point Environment-resistive Input Terminal), a sensor power short-circuit is detected.
If a sensor power short-circuit is detected when using Environment-resistive Terminals or Screw-less Clamp Terminals, the sensor power output is forced OFF for the contact. (Input contacts that have not short-circuited will continue to operate normally.) The indicators on the Slave can be used to check which contacts have been detected with power short-circuits. (Refer to the informa­tion below.)
If a short-circuit is detected in any of the contacts when a Sensor Connector Terminal is being used, the I/O power is turned OFF for the Unit. Check whether a sensor power short-circuit has been detected using the indicators on the slave.
When a sensor power short-circuit is detected, the Sensor Power Short-cir­cuited Flag in the Status Area will turn ON. The Sensor Power Short-circuited Flag can be read using the Configurator or explicit messages. The sensor will automatically recover when the cause of the short-circuit is removed, and the
74
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
power output to the connector where the short-circuit was detected will turn ON.
Environment-resistive Terminal, Sensor Connector Terminal, or Screw-less Clamp Terminal
Short­circuit
Has the sensor power
Sensor
Note Use a Power Supply Unit with a rated power supply of 50 W for the communi-
cations power supply. A short-circuit is detected when the Unit's sensor power output current reaches or exceeds 100 mA per input connector. When a short­circuit occurs, the communications power supply may be temporarily inter­rupted. After a short-circuit has been detected, the power will be automatically restored, but during the power interruption use an external circuit in the con­figuration to make sure the system is operating safely.
shorted?
Use the following equations to calculate the sensor’s current consumption.
Total network current = Total Unit current consumption + Total sensor current consumption
Communications power supply capacity
(Total network current + Short-cir-
cuit detection current) x (=100 mA) x (DeviceNet network voltage)
I/O Indicator Status when Short-circuit is Detected (Environment-resistive Terminal Input Units)
-A
-B
The box indicates the number of the corresponding connector.
Note 1. Refer to SECTION 6 Environment-resistive Slaves for the position of the
actual indicator.
2. After a sensor short-circuit is detected, a delay of up to 1.2 s will occur be­fore the Sensor Power Shorted Flag is turned ON.
SHT0 Indicator Status when Short-circuit Is Detected (Sensor Connector Terminal Input Units and I/O Units)
This indicator lights red when a short-circuit error is detected.
I/O Indicator Status when Short-circuit is Detected (Screw-less Clamp Terminal Input Units, Mixed Units)
This indicator lights red when a short-circuit error is detected.
0 to 15
Lit red.
75
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Checking Using the DeviceNet
The method used to check information from the DeviceNet Configurator (Ver.
2.20 or later) is described here.
Configurator
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. Click the right mouse button over the icon of the DRT2-series Smart Slave to be set in the Network Configuration Window, and select Monitor.
3. Select the IN Tab from the Monitor Device Window. When a short-circuit is detected, the short-circuit status will be displayed in the Short-circuit field.
Monitor Device Window for Environment-resistive Terminals
Monitor Device Window for Sensor Connector Terminals
4-3-9 External Load Short-circuit Detection
DRT2-OD@@C(-1), DRT2-MD16S(-1), and DRT2-OD16SLH(-1)
Function Overview The load current of the Output Unit can be monitored, and an external load
short-circuit can be detected when the current drops below a set value per contact (or common). When an external load short-circuit is detected, the out­put is turned OFF to prevent damage to the Unit's output circuit. With Environ­ment-resistive Terminals, output contacts that have not short-circuited will operate normally. The LED indicators on the Slave Unit can be used to check which contact has been detected as having an external load short-circuit. (Refer to the information below.) Either the Configurator or explicit messages can be used to read which contact has the external load short-circuit. When an external load short-circuit is detected, the Short-circuited Flag in the Status Area is turned ON. (The Configurator or explicit messages can be used to read the status of the Short-circuited Flag.) The Unit will recover when the cause of the short-circuit is removed by automatic or manual recovery. Set the
76
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
recovery method using the Configurator or explicit messages. (The factory setting is for manual recovery.)
Environment-resistive Terminal, Sensor Connector Terminal, or Screw-less Clamp Terminal
Short­circuit
Output forced OFF.
Has the external load shorted?
External load
Note 1. Refer to Load Short-circuit Protection: DRT2-OD16SLH and DRT2-
OD16SLH-1 on page 218 and Load Short-circuit Protection: DRT2­OD08C and DRT2-OD08C-1 on page 258 for more information.
2. Environment-resistive Terminals The OMRON S8@@ Power Supply Unit is recommended for the I/O power supply. The load short-circuit detection function uses the transistor's ther­mal shutdown, so when a Power Supply Unit with a low-capacity rating or instantaneous shutoff overcurrent protection is used, the load short-circuit may not be detected. Always use a Power Supply Unit with a rating of 100 W or higher if it uses a dropping overcurrent protection characteristic. Always use a Power Supply Unit with a rating of 150 W or higher if it uses intermittent overcurrent protection. The current limiter will protect the tran­sistor even if short-circuit detection is disabled.
Sensor Connector Terminals The OMRON S8@@ Power Supply Unit is recommended for the I/O power supply. If a Power Supply Unit with a dropping overcurrent protection char­acteristic is used, the load short-circuit may not be detected. Always use a Power Supply Unit with a rating of 100 W or higher if it uses a dropping overcurrent protection characteristic. Always use a Power Supply Unit with a rating of 150 W or higher if it uses intermittent overcurrent protection. The current limiter will protect the transistor even if short-circuit detection is dis­abled.
I/O Indicator Status when Short-circuit is Detected (Environment-resistive Terminal Input Units)
Automatic Recovery Mode
When the cause of the short-circuit has been removed, the short-circuit pro­tection status will automatically be cleared by rewiring the corresponding con­tact correctly. After short-circuit detection, the short-circuit protection status will also be cleared automatically by turning OFF the output. The output must remain ON for checking the Status Area and indicators.
I/O Indicator Status when Short-circuit Detected
-A
Lit yellow. Lit red.
-B
The box indicates the number of the corresponding connector.
Note Refer to SECTION 6 Environment-resistive Slaves for the position of the
actual indicator.
77
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Manual Recovery Mode
When the cause of the short-circuit is removed and the corresponding contact is correctly rewired, the short-circuit protection status is cleared by turning ON the I/O power or the communications power. When the I/O power is OFF or the output is OFF, the short-circuit protection status is maintained, so the shorted locations can be easily identified from the indicator status during on­site maintenance.
I/O Indicator Status when Short-circuit Detected
-A
OFF
The box indicates the number of the corresponding connector.
Note Refer to SECTION 6 Environment-resistive Slaves for the position of the
actual indicator.
SHT1 Indicator Status When Short-circuit Is Detected for a Sensor Connector Terminal I/O Unit
This indicator lights red when a short-circuit error is detected.
I/O Indicator Status When Short-circuit Is Detected for a Screw-less Clamp Terminal I/O Unit
Automatic Recovery Mode
When the wiring has been corrected to remove the short-circuit, the short-cir­cuit protection status will automatically be cleared. The short-circuit protection status will also be cleared automatically when the output is turned OFF. The output must remain ON to check the Status Area and indicators.
0 to 15
Lit yellow. Lit red.
Manual Recovery Mode
After the wiring has been corrected to remove the short-circuit, the short-cir­cuit protection status is cleared by cycling the I/O power or the communica­tions power. When the I/O power or the output is OFF, the short-circuit protection status will be maintained, so short-circuited locations can be easily identified from the indicator status during onsite maintenance.
-B
Lit red.
0 to 15
Checking Using the DeviceNet
0 to 15
OFF Lit red.
The method used to check information from the DeviceNet Configurator (Ver.
2.20 or later) is described here.
0 to 15
Configurator
Checking Shorted Devices The procedure for this checking method is the same from both the Main Win-
dow and the Maintenance Mode Window.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. Click the right mouse button over the icon of the DRT2-series Smart Slave to be set in the Network Configuration Window, and select Monitor.
78
Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
3. Select the General Tab from the Monitor Device Window. If External Load Short-circuit Detection is selected, a short-circuit has been detected.
4. When a short-circuit detection has been confirmed, determine which de­vice has shorted from the OUT Tab Page.
Setting to Automatic/Manual Recovery Mode (Environment-resistive Terminals Only)
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Main Window, open the Network Configuration Window and dou­ble-click or click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit De­vice Parameters Window. From the Maintenance Mode Window, click the right mouse button over the icon of the DRT2-series Smart Slave to be set. Select Parameter and Edit to display the Edit Device Parameters Window.
3. Select the OUT Ta b. Select either Manual or Automatic for the external output load short-cir-
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