Omron E3X-DRT21-S User manual

Communication Unit
For Digital Type Sensor
E3X-DRT21-S (DeviceNet)
User's Manual
Cat. No. Z223-E1-03

Introduction
This manual provides information regarding functions, performance and operating
methods that are required for using Communication Unit for Digital Type Sensor
E3X-DRT21-S (DeviceNet).
This communication unit is a communication unit to be used for Digital Type Sensor
E3X-DA-S Series, E3X-MDA Series, Digital Separate Amplifier Laser Sensor E3C-LDA
Series, and Digital Separate Amplifier Proximity Sensor E2C-EDA Series, which had
been developed with Omron's advanced technologies and successful experience.
Personnel in charge of installing FA systems.
Personnel in charge of designing FA systems.
Personnel in charge of managing FA systems and facilities.
Note that this product must be used in the range of the general specifications.
Intended Audience
This manual is intended for the following personnel, who must also have knowledge
of electrical systems (an electrical engineer or the equivalent).
Copyrights and Trademarks
DeviceNet is a registered trademark of the ODVA (Open DeviceNet Vendor Association).
Other product names and company names used in this manual are the trademarks or registered
trademarks of the respective companies. The copyright to the Communication Unit for Digital Type
Sensor belongs to OMRON Corporation.
Version Upgrades
The software version will be upgraded as required. Versions are indicated in the model number as
follows: E3X-DRT21-S Ver.@.

ÇÕǹÇ?Ç ëÊ 1èÕ ëÊ 2èÕ ëÊ 3èÕ ëÊ 4èÕ
Introduction
Section 1 Section 2 Section 3 Section 4
Introduction
Section 1
Section 2
Section 3
Section 4
Application Considerations (Please Read)
Overview
Installation and Connection
DeviceNet Communication Settings
APPENDIX
User's Manual
Communication Unit
for Digital Type Sensor
E3X-DRT21-S (DeviceNet)

2
Introduction
E3X-DRT21-S
User’s Manual
Introduction
READ AND UNDERSTAND THIS DOCUMENT
Please read and understand this document before using the products. Please consult your
OMRON representative if you have any questions or comments.
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 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.

3
E3X-DRT21-S
User’s Manual
Introduction
Introduction
SUITABILITY FOR USE
THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY ARE NOT
DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS, AND SHOULD NOT BE RELIED
UPON AS A SAFETY COMPONENT OR PROTECTIVE DEVICE FOR SUCH PURPOSES.
Please refer to separate catalogs for OMRON’s safety rated products.
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 product.
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 document.
• 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 PRODUCT IS PROPERLY
RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT
OR SYSTEM.
PERFORMANCE DATA
Performance data given in this document 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.

4
Introduction
E3X-DRT21-S
User’s Manual
Introduction
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 product
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.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate;
however, no responsibility is assumed for clerical, typographical, or proofreading errors, or
omissions.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user’s programming of a programmable product, or
any consequence thereof.
COPYRIGHT AND COPY PERMISSION
This document shall not be copied for sales or promotions without permission.
This document is protected by copyright and is intended solely for use in conjunction with the
product. Please notify us before copying or reproducing this document in any manner, for any
other purpose. If copying or transmitting this document to another, please copy or transmit it in
its entirety.

5
E3X-DRT21-S
User’s Manual
Introduction
Introduction
Meanings of Signal Words
The following signal words are used in this manual.
The following alert statements apply to the products in this manual. Each alert statement also
appears at the locations needed in this manual to attract your attention.
Meanings of Signal Words
Indicates a potentially hazardous situation which, if not avoided, will
result in minor or moderate injury, or may result in serious injury or
death. Additionally there may be significant property damage.
Alert statements in this Manual
Configure the safety circuits, such as emergency stop circuits, interlock circuits, and limit
circuits, with external control circuits in order to remain the safety of the entire system when
a failure due to a product failure or an external factor occurs. If not, the failure may cause a
serious incident.

6
Introduction
E3X-DRT21-S
User’s Manual
Introduction
Precautions for Safe Use
Please observe the following precautions for safe use of E3X-DRT21-S.
• Do not use the product in environments where it can be exposed to inflammable/
explosive gas.
• Do not use the product where to be exposed to water, oil, chemical fumes or steam.
• Do not disassemble, repair or modify this product.
• Do not wire the product when the power is ON.
• Do not drop, or subject to excessive shock or vibration. It may cause a failure or
abnormal operation.
• Use the specified communications cables.
• Wire communications within the specified distance.
• Do not wire the communications cables near or in parallel with high-voltage or high-
current lines.
• Do not bend cables past their natural bending radius or pull on cables.
• Check all wiring carefully and completely before supplying power.
• Confirm that the correct polarity has been used in wiring the terminals and that the
communications and power lines have been otherwise wired correctly. Incorrect wir-
ing may result in failure.
• Do not connect or disconnect connectors while the power supply is turned ON. Doing
so may result in failure or malfunction.
• Use the specified power supply voltage.
• Do not turn ON or OFF the power supply to the Mobile Console during communica-
tions. Doing so may result in communications errors.
• Make sure that screws for the communication connector are tightened firmly. (0.5 N·m
to 0.6N·m)
• Do not use this product if the case is damaged.
• Dispose this product as industrial waste.
Precautions for Safe Use

7
E3X-DRT21-S
User’s Manual
Introduction
Introduction
Precautions for Correct Use
Please install this product correctly according to this manual.
• Do not install the product in locations subjected to the following conditions:
- Direct sunlight
- Ambient temperature and humidity outside the rating
- Rapid temperature transition and condensation
- Excessive dust, saline air or metal powder
- Direct vibration or shock
• Use appropriate shielding when using this product in the following places.
- Presence of noise such as static electric
- Strong magnetic or electric field
- Subject to possible expose to radiation
- Near power supply lines
• Do not clean with organic solvents, such as paint thinner. Organic solvents will dis-
solve and discolor the surface of the product.
• Take measures to stabilize the power supply to conform to the rated supply (the volt-
age, frequency, etc.) if it is not stable.
Precautions for Correct Use

8
Introduction
E3X-DRT21-S
User’s Manual
Introduction
Editor’s Note
Editor’s Note
Page Format
Section 4
APPENDIX
82
82
E3X-DRT21-S
E3X-DRT21-S
User's Manual
User's Manual
Section 4
Section 4
DeviceNet Connection Settings
DeviceNet Connect ion Sett ings
DeviceNet Connection Settings
DeviceNet Connection Settings
Setting Connections without using Configurator
Setting Connections without using Configurator
Connection
Poll
Bit-Strobe
COS
(Change of
state)
Cyclic
Used for basic I/O.
Description
DeviceNet supports different protocols for remote I/O communications between master
and slave devices. Connection is a unit used to manage those protocols. The
connections can be set using the configurator.
The DeviceNet remote I/O communications protocol supports four types of
connections: Poll, Bit-Strobe, COS (Change of state), and Cyclic.
The features of these connections are listed in the following table. The Sensor
communication unit supports all the protocols.
Used for input of 8 bytes or less.
Sends broadcasting requests from master
and receives input from slaves.
Communications timing is determined by regular cycles
(heartbeat timer).
The communication unit will send data at a regular cycle.
This connection can be used to send data to the master
from the
communication unit only when the data changes.
Transmission timing is determined by a heartbeat timer.
Data can be sent only when required, thereby reducing
the communications load on the network.
COS and Cyclic
connections
cannot be used
at the same time.
Poll and Bit-Strobe
connections
cannot be used
at the same time.
To use COS and Cyclic connections, the DeviceNet master must support those functions.
Confirm that the master supports COS and Cyclic connections before using them.
OMRON products, such as the CS1W-DRM21 and CJ1W-DRM21, support COS and Cyclic
The connections used for all the IN data of the Sensor communication unit are as
follows:
Data of 8 bytes or less : Bit-Strobe
Data of more than 8 bytes : Poll
Header
Overview of the header
Cross-header
Title of each section
Index label
Supplementary Explanation
Helpful information regarding operation and refer-
ence pages introduced here using symbols.
* This page does not exist.
Overview of cross-header
Explanation of options
Indicates the section num-
ber and title.

9
E3X-DRT21-S
User’s Manual
Introduction
Introduction
Editor’s Note
■Meaning of Symbols
Menu items that are displayed on the Amplifier Unit's LCD screen are indicated
enclosed by brackets [ ].
■Visual Aids
Indicates points that are important to ensure full product performance, such as operational precau-
tions and application procedures.
Indicates pages where related information can be found.
Indicates information helpful in operation.
Indicates functions that can be set only when the setup menu has been switched to EXP
menu.

10
Introduction
E3X-DRT21-S
User’s Manual
Introduction
MEMO

11
E3X-DRT21-S
User’s Manual
Introduction
Contents
ÇÕǹÇ?Ç ëÊ 1èÕ ëÊ 2 èÕ ëÊ 3èÕ ëÊ 4èÕ
Introduction
Section 1 Section 2 Section 3 Section 4 ëÊ 6 èÕ ëÊ 7èÕ
Contents
Meanings of Signal Words 5
Precautions for Safe Use 6
Precautions for Correct Use 7
Editor’s Note 8
Page Format 8
Contents 11
Section 1 Overview 15
Features and System Configuration 16
Overview 16
Features 17
System Configuration 18
Section 2 Installation and Connection 19
Specifications and External Dimensions 20
Specifications 20
External Dimensions 21
Connecting Sensors 22
Connectable Sensors 22
Number of Connectable Sensors 23
Connecting and Identifying Sensors (Unit Number) 23
Registering the Number of Connected Sensors 24
Sensor Reset Switch 24
Installation 25
Installation Procedures 25
Removing Procedures 26
Precautions for Replacing Units 26

12 E3X-DRT21-S
User’s Manual
Introduction
Contents
Introduction
Section 3 DeviceNet Communication Settings 27
Overview of DeviceNet Communication Type 28
Overview 28
Overview of Communication Functions of DeviceNet Communication Type 29
Example of Remote I/O Communications 32
Example of Explicit Message Communications 33
Part Names 34
Part Names and Functions 34
How to Use Units 37
How to Use Units 37
Wiring DeviceNet Communication Type 39
DeviceNet Remote I/O Communications 40
Allocating to Master 40
Explicit Message Communications 44
Basic Format of Explicit Messages 44
Read Commands 46
Write Commands 60
Operation Instruction Commands 70
Error Code List 72
Example of Explicit Message Functions 74
Sensor Setting/Monitoring/Operating Functions from Configurator 76
Overview 76
Setting the Communication Unit and Sensors, and Downloading 78
Uploading to Communication Unit and Monitoring/Setting Parameters Online 80
Operation Instructions for Each Sensor (Fiber Amplifier Unit) 81
Online Monitoring 82
Sensor Maintenance 82

13
E3X-DRT21-S
User’s Manual
Introduction
Introduction
Contents
Section 4 APPENDIX 83
Communications Timing 84
Communications Timing 84
Errors and Countermeasures 86
DeviceNet Connection Settings 88
Setting Connections without Using Configurator 88
Changing Connections Using the Configurator 89
DeviceNet Device Profile 95
Device Profile 95
Mounted Objects 96
Index 97
Revision History 100

14 E3X-DRT21-S
User’s Manual
Introduction
Contents
Introduction
MEMO

15
E3X-DRT21-S
User’s Manual
Section 1 Overview
Section 1
Overview
Features and System Configuration 16
Overview 16
Features 17
System Configuration 18

16
Section 1 Overview
E3X-DRT21-S
User’s Manual
Section 1
Features and System Configuration
Features and System Configuration
Overview
The Communication Unit (E3X-DRT21-S) is a communication slave that performs the ON/
OFF output for sensors, monitoring the detection level, writing parameters, and an
operation between Digital Type Sensors and PLCs via DeviceNet communication.
(Supported sensors are: Fiber Sensors E3X-DA-S/MDA series, Separate Amplifier Laser
Sensors E3X-LDA series, and Separate Amplifier Proximity Sensor E2C-EDA series.)
The ON/OFF output and monitoring the detection level can be performed using remote I/O
communications without any programming. Moreover, reading and writing any parameters
using Explicit messages, and batch-transfer and monitoring any parameters using a
configurator are possible.
If the Sensor is connected using a connector with a cable, external noise may prevent correct
communication of ON/OFF signals to the Communication Unit. If a high level of reliability is required,
use a cordless connector (E3X-CN02).
Optical
Communication
PLC
Device Net

17
E3X-DRT21-S
User’s Manual
Section 1 Overview
Section 1
Features and System Configuration
Features
■This unit enables a communication interface between
OMRON's PLCs (CS, CJ, SYSMAC and other series) or other
manufacturer's PLCs that support DeviceNet, and Digital Type
Sensors.
●Remote I/O communication slave
Data such as ON/OFF output and the detection level on Digital Type Sensors can be
sent to the upper (master) PLCs via remote I/O communication without any
programming.
●Message communications
Sending commands (Explicit messages) from the PLC allows reading and writing
parameters such as settings of the detection level, threshold and each function, and
various teaching operations.
●Configurator
By using configurators (version 2.10 or later) connected to the network on PCs,
parameters for each device (DeviceNet-supported products including sensors,
temperature controller, etc.) can be set to download them to all devices all at once.
Moreover, the ON/OFF output and monitoring the detection level for sensors, and
teaching operations can be performed.
●Monitoring sensor's operating time
Operating time (Turn-on time) for Amplifier Unit of sensors and Sensor Heads can be
monitored respectively by configurators.
By setting the warning time, it is possible to indicate a warning that operating time
exceeds the limit of the setting.
It is useful for a maintenance design for sensors.
●Mobile console connection
Mobile console E3X-MC11-SV2 for Digital Type Sensors can be connected to the
Communication Unit. (Head unit for connecting the mobile console is not required.)
The mobile console can be used in combination with monitoring ON/OFF output. However, it cannot
be used in combination with monitoring the detection level, messages communications and device
parameters transfer from the configurator.

18
Section 1 Overview
E3X-DRT21-S
User’s Manual
Section 1
Features and System Configuration
System Configuration
Mobile console cannot be used at the same time as explicit messages communications and setting,
monitoring, and operating from the configurator.
Mobile Console
E3X-MC11-SV2
For Digital Type Sensor
Communication Unit
DeviceNet
Communication Type
E3X-DRT21-S
Amplifier Unit
DeviceNet configurator
CS/CJ series DeviceNet unit
PLC
Serial connection
(Setting, monitoring and
operating of sensor)
Explicit message
DeviceNet
Digital Type Sensor
DeviceNet slave