Omron ERT1 Series User manual

OPERATION MANUAL
Cat. No. W481-E1-02
EtherNet/IP Slave Units
ERT1 Series

ERT1 Series
EtherNet/IP Slave Units
Operation Manual
Revised November 2010

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Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator
and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always heed
the information provided with them. Failure to heed precautions can result in injury to people or dam-
age 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 Program-
ming Device displays to mean Programmable Controller.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
Note Indicates information of particular interest for efficient and convenient opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
Trademarks and Copyrights
EtherNet/IP is a registered trademark of the ODVA (Open DeviceNet Vendor Association).
Ethernet is a trademark of the Xerox Corporation.
Microsoft, Windows, Windows NT, Windows 2000, Windows XP, and Windows Vista are registered
trademarks of the Microsoft Corporation.
Other names of systems or products that appear in this document are trademarks or registered trade-
marks of the respective company.
OMRON, 2009
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o
r
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o
f
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con-
stantly 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.

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TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
SECTION 1
Features and Slave Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Feature of EtherNet/IP Slave Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 EtherNet/IP Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SECTION 2
System Startup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-1 Overview of System Startup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-2 Recommended Network Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SECTION 3
Basic Specifications of Slave Units . . . . . . . . . . . . . . . . . . . . 39
3-1 Basic Specifications of Slave Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
SECTION 4
Digital I/O Slave Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4-1 Status Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4-2 Screw-less Clamp Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
SECTION 5
Environment-resistive Slave Units . . . . . . . . . . . . . . . . . . . . 59
5-1 Status Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5-2 Environment-resistive Slave Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
SECTION 6
Smart Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6-1 Functions Common to All Slave Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
SECTION 7
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 77
7-1 Indicator Meanings and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
7-2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
7-3 Maintenance and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

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About this Manual:
This manual describes the installation and operation of ERT1-series EtherNet/IP 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 an ERT1-series EtherNet/IP Slave Unit. Be sure to read the precautions
provided in the following section.
Precautions provides precautions for using the ERT1-series EtherNet/IP Slave Units.
Section 1 describes the features and models of EtherNet/IP Slave Units
Section 2 describes the overall procedure that is used to set up and start an EtherNet/IP system.
Section 3 provide the basic specifications of the EtherNet/IP Slave Units
Section 4 describes the Digital I/O Slave Units for EtherNet/IP.
Section 5 describes the Environment-resistive Slave Units for EtherNet/IP.
Section 6 describes the Smart Functions supported by the EtherNet/IP Slave Units.
Section 7 describes troubleshooting and maintenance for the EtherNet/IP Slave Units.

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Relevant Manuals
The following table lists manuals that contain information relevant to EtherNet/IP Slave Units.
Manual
number
Model Name Contents
W481 ERT1 Series ERT1 Series
EtherNet/IP Slave
Units Operation
Manual (this manual)
Provides information on operating and installing Ether-
Net/IP Slave Units.
W465 CS1W-EIP21
CJ1W-EIP21
CJ2H-CPU6@-EIP
EtherNet/IP Units
Operation Manual
Provides information on operating and installing Ether-
Net/IP Units, including details on basic settings, tag data
links, and FINS communications.
Refer to the Communications Commands Reference
Manual (W342) for details on FINS commands that can
be sent to CS-series and CJ-series CPU Units when
using the FINS communications service.
Refer to the Ethernet Units Operation Manual
Construction of Applications (W421) for details on con-
structing host applications that use FINS communica-
tions.
W342 CS1G/H-CPU@@H
CS1G/H-CPU-@@V1
CS1W-SCU21
CS1W-SCB21/41
CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ1G/H-CPU@@H
CJ1G-CPU@@
CJ1W-SCU41
Communications
Commands Refer-
ence Manual
Describes the C-series (Host Link) and FINS communi-
cations commands used when sending communications
commands to CS-series and CJ-series CPU Units.
W463 CXONE-AL@@C-V3
CXONE-AL@@D-V3
CX-One Ver. 3.0
Setup Manual
Describes the setup procedures for the CX-One. Informa-
tion is also provided on the operating environment for the
CX-One.
!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 NON-
INFRINGEMENT, 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.

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Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED
FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.

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Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other
reasons.
It is our practice to change model numbers when published ratings or features are changed, or when
significant construction changes are made. However, some specifications of the products may be changed
without any notice. When in doubt, special model numbers may be assigned to fix or establish key
specifications for your application on your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when
tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does
not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and
Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

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PRECAUTIONS
This section provides general precautions for using the ERT1-series EtherNet/IP Slave Units.
The information contained in this section is important for the safe and reliable application of EtherNet/IP Slave
Units. You must read this section and understand the information contained before attempting to set up or operate
an EtherNet/IP Slave Unit.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
6-3 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

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Intended Audience 1
1 Intended Audience
This manual is intended for the following personnel, who must also have
knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing FA systems.
• Personnel in charge of designing FA systems.
• Personnel in charge of managing FA systems and facilities.
2 General Precautions
The user must operate the product according to the performance specifica-
tions 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, amuse-
ment machines, safety equipment, and other systems, machines, and equip-
ment that may have a serious influence on lives and property if used
improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product are
sufficient for the systems, machines, and equipment, and be sure to provide
the systems, machines, and equipment with double safety mechanisms.
This manual provides information for programming and operating the Unit. Be
sure to read this manual before attempting to use the Unit and keep this man-
ual 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 appli-
cations.
3 Safety Precautions
!WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing
so may result in electric shock.
!WARNING Do not touch any of the terminals or terminal blocks while the power is being
supplied. Doing so may result in electric shock.
!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do
so may result in malfunction, fire, or electric shock.

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Operating Environment Precautions 4
!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 outputs may remain ON or OFF due to destruction of the output
transistors. As a countermeasure for such problems, external safety mea-
sures must be provided to ensure safety in the system.
• Data input and output errors may occur when a photocoupler reaches the
end of its service life. As a countermeasure for such problems, external
safety measures must be provided to ensure safety in the system.
!WARNING Do not use the indicators on the EtherNet/IP Slave Units for safety-related
applications. Safety functions may be lost, occasionally resulting in serious
injury.
4 Operating Environment Precautions
!Caution Install the EtherNet/IP Slave Units correctly as described in this manual.
!Caution Do not install the EtherNet/IP Slave Units in the following locations.
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified
in the specifications.
• Locations subject to condensation as the result of severe changes in tem-
perature.
• Locations subject to corrosive or flammable gases.
• Locations subject to dust (especially iron dust) or salts.
• Locations subject to exposure to water, oil, or chemicals.
• Locations subject to shock or vibration.
!Caution Take appropriate and sufficient countermeasures when installing systems in
the following locations:
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.

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Application Precautions 5
!Caution Install the EtherNet/IP Slave Units securely using M5 screws and tighten them
to a torque of 1.47 to 1.96 N·m. Do not over tighten the screws. Doing so may
damage them.
!Caution Do not use the EtherNet/IP Slave Units where they would be continually sub-
jected to water or water spray.
!Caution Take appropriate measures to ensure that the specified power with the rated
voltage is supplied in places where the power supply is unstable, or imple-
ment safety measures using a voltage monitor.
!Caution Tighten the screws on the switch cover to a torque of 0.4 to 0.5 N·m. The
specified degree of protection may not be achieved if the screws are loose.
!Caution When attaching the switch cover, wipe it clean of dust, dirt, contamination,
water, and other matter before attaching it. The specified degree of protection
may not be achieved if the cover is not clean.
!Caution Use the specified connectors and cables for wiring.
!Caution Do not bend the cable past its natural bending radius and do not pull on the
cable with excessive force.
!Caution Use the specified DC power supply.
!Caution Do not exceed the specified communications distance or the specified num-
ber of nodes.
!Caution Do not use organic solvents to clean the EtherNet/IP Slave Units. They may
dissolve or discolor the surface.
5 Application Precautions
Observe the following precautions when using the EtherNet/IP Slave Units.
• Do not attempt to disassemble, repair, or modify the EtherNet/IP Slave
Units.
• Do not drop any Unit or subject any Unit to excessive shock or vibration.
Otherwise, Unit failure or malfunction may occur.
• Tighten connector screws securely.
• Separate the communications cables from the power lines or high-voltage
lines.
• Check wiring and switch settings completely before turning ON the power
supply.
• Make sure that the power supply voltage, terminal polarity, communica-
tions paths, power supply wiring, and I/O voltages are within specifica-
tions. Mistakes in any of these can cause EtherNet/IP Slave Unit failure.
• Turn OFF the power supply to the PLC and all slaves and turn OFF all
communications power supplies before connecting or disconnecting com-
munications cables.

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Conformance to EC Directives 6
• For the Unit power supplies and output power supplies, use power supply
units can will supply a stable output even if the input power is interrupted
for up to 10 ms. The power supply must also have reinforced or double
insulation.
• Do not place any objects on the cables.
• When transporting the Unit, use special packing boxes and protect it from
being exposed to excessive vibration or impact during transportation.
6 Conformance to EC Directives
6-1 Applicable Directives
•EMCDirectives
• Low Voltage Directive
6-2 Concepts
EMC Directives
OMRON devices that comply with EC Directives also conform to the related
EMC standards so that they can be more easily built into other devices or the
overall machine. The actual products have been checked for conformity to
EMC standards (see the following note). Whether the products conform to the
standards in the system used by the customer, however, must be checked by
the customer.
EMC-related performance of the OMRON devices that comply with EC Direc-
tives 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 61131-2 and EN 61000-6-2
EMI (Electromagnetic Interference): EN 61131-2 and EN 61000-6-4
(Radiated emission: 10-m regulations)
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 V AC and 75
to 1,500 V DC meet the required safety standards for the PLC (EN61131-2).
6-3 Conformance to EC Directives
The OMRON products described in this manual comply with the related EMC
Directives. To ensure that the machine or device in which the products are
used complies with EC Directives, the products must be installed as follows:
1,2,3... 1. The products must be installed within a control panel.
2. A DC power supply with reinforced insulation or double insulation that can
maintain a stable output even if the input is interrupted for 10 ms must be
used for communications power, internal power, and I/O power. The
OMRON S82J-series Power Supply is recommended. (See note.)
3. Products complying with EC Directives also conform to the Emission Stan-
dards (EN 61131-2 and 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 equip-
ment complies with EC Directives.

xx
Conformance to EC Directives 6
4. Conformance with the EC Directives was confirmed with a system config-
uration using I/O wiring lengths of less than 30 m.
Note Conformance with the EMC Directive was confirmed when using
the recommended power supply.