Omron E3X-DRT21, E3X-SRT21, E3X-CIF11 Operation Manual

Cat. No. Z152-E1-01

E3X-DRT21 (DeviceNet)
E3X-SRT21 (CompoBus/S)
E3X-CIF11 (RS-422)

Fiber Amplifier Sensor
Communication Units

23(5 $7,21 0$18$/

E3X-DRT21 (DeviceNet)
E3X-SRT21 (CompoBus/S)
E3X-CIF11 (RS-422)
Fiber Amplifier Sensor
Communication Units

Operation Manual

Produced Septemb er 2001

iv

Notice:

r
f

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

The following conventions are used to ind icate and classify pr ecautions in this manual . Always heed
the information provided with them . Failure to heed precautions can result in in jur y to people or dam­age to property.

!DANGER Indicates an immine ntly hazardous situation whi ch, if not avoided, will result in death or

serious inj ury.

!WARNING Indicates a potentially hazardous situatio n which, if not avoided, could resu lt in death or

serious inj ury.

!Caution Indicates a potentially hazardous situat ion 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 dis plays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PLC” means Programmable Controller.

Visual Aids

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

Copyrights

DeviceNet is a registered tradema rk of the ODVA (Open DeviceNet Vendor Association). Othe r prod­uct names and company names use d in this manual are the tradema rks or registere d trademarks of
the respective companies. The copyright to t he Fiber Am plifier Sen sor Communicati on Units belo ngs
to OMRON Corporation.

¸ OMRON, 2001

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or tran smit ted, 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 th e use of the in fo rmation c ontain ed he rein. M oreover, 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.

Note Indicates information of pa rticular 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.

v

TABLE OF CONTENTS

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi

SECTION 1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Features and System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-3 Connecting Fiber Amplifier Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SECTION 2

E3X-DRT21 for Device Net Communications . . . . . . . . . . . 11

2-1 Overview of DeviceNet Communications Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2-2 DeviceNet Communication Unit Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . 17

2-3 Operating Procedure for DeviceNet Communication Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2-4 Wiring the DeviceNet Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2-5 DeviceNet Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-6 Explicit Message Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2-7 Setting, Monitoring, and Operating Sensors from the DeviceNet Configurator . . . . . . . . . . 45

SECTION 3

E3X-SRT21 for CompoBus/S Communications . . . . . . . . . 53

3-1 Overview of CompoBus/S Communications Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3-2 CompoBus/S Communication Unit Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . 56

3-3 Operating Procedure for CompoBus/S Communication Unit. . . . . . . . . . . . . . . . . . . . . . . . 59

3-4 Wiring the CompoBus/S Communication Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3-5 CompoBus/S Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

SECTION 4

E3X-CIF11 for RS-422 Communications. . . . . . . . . . . . . . . 63

4-1 Overview of RS-422 Communication Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

4-2 RS-422 Communication Unit Part Names and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . 68

4-3 Operating Procedure for RS-422 Communication Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

4-4 Wiring RS-422 Communication Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

4-5 CompoWay/F Message Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

vi

TABLE OF CONTENTS

SECTION 5

Installation and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 97

5-1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

5-2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

SECTION 6

Errors and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 103

6-1 Errors and Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

Appendices

A Communications Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

B Monitoring Incident Light Levels of E3X-DA6-P Sensors . . . . . . . . . . . . . . . . . . . . . . . . . 111

C DeviceNet Connection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

D DeviceNet Device Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

vii

About this Manual:

This manual describes the installation and operation of the E3X-DRT21 (DeviceNet), E3X-SRT21
(CompoBus/S), a nd E3X-CIF11 (RS-422) Fiber Amplifier Se nsor Communication Un its. These Units
enable optical fiber com munic ati on s for OMRON E3X- DA-N Digital F ib er Am pl ifier s and E39 - TM1 Ter­minal Block Units.

Please read this manual carefully and be sure you understand the information provided before
attempting to install or ope rate a Fib er Amplifier Sensor Com munic at ion Uni t. B e s ur e t o read the pre­cautions provided in the following section.

Precautions provides general precautions for using a Fiber Amplifier Sensor Communication Unit and
related devices.

Section 1 provides an overview of the Fiber Amplifier Sensor Communication Units for DeviceNet,
CompoBus/S, and RS-422 c ommunic ations, inc ludin g thei r features, system c onfig urations, s pecific a­tions, and connection methods. This section also covers the differences between different models.

Section 2 provides details on the Fiber Amplifier Sensor Communication Unit for DeviceNet communi­cations, including proc edures and application examples for remote I/O communica tions and explicit
messages used by the Unit, par t nam es and fun ction s, operation proced ures, wiring , and appl ications
available from the DeviceNet Configurator.

Section 3 provides detai ls on the Fiber Am plifier Sensor Communication Unit for CompoB us/S com­munications, including proc ed ures and a ppl ic atio n examples for CompoBus/S remote I/O communica­tions used by the Unit, part names and functions, operation procedures, and wiring.

Section 4 provides details on the Fiber Amplifier Sensor Communication Unit for RS-422 communica­tions, including informati on on the model s, procedures, set tings, and applica tion examples of Com po­Way/F message communications used by the Unit, par t names and fun ctions, operation procedures,
and wiring.

Section 5 descr ibes the procedure us ed to mount the Fiber Amplifier Sen sor Communication Unit to
DIN Track and provides the dimensions of the Units.

Section 6 provides infor mation for each Communication Unit on the types of errors that m ay occur,
including details on the indicator status, probable causes, and remedies.

The Appendices provide information on communications timing, monitoring incident light levels of
E3X-DA6-P Sensors, DeviceNet connection settings, and the device protocol for DeviceNet.

!WARNING Failure to read and under stand the information provided in th is manual m ay result in p er-

sonal injury or death, damage to th e product, or product failure. Please r ea d ea ch 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.

viii

PRECAUTIONS

This section provides general precautions for using the Fiber Amplifier Sensor Communication Units and related devices.

The information contained in this section is importa nt for the safe and reliable application of the Fiber Amplifier
Sensor Communication Units. You must read this section and understand the information contained before
attempting to set up or operate a Fiber Amplifier Sensor Communication Unit.

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

ix

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 t he product according to t he performance specifica­tions described in the operation manuals.

Before using the product under conditions which are not described in the
manual or applying the produ ct to nuclear control s ystems, railroad systems,
aviation systems, vehicles, combustion systems, medic al equipmen t, amuse­ment machines, safety equipment, and oth er systems, machines, and equi p­ment that may have a serious influence on lives and property if used
improperly, consult your OMRON representative.

Make sure that the ratings and performan ce charact er is ti cs of the pr od uc t are
sufficient for the systems, machi nes, and equipment, and be sure to provide
the systems, machines, and equipment with double safety mechanisms.

This manual provides information for install ing and operating OMRON Fiber
Amplifier Sensor Communication Units. 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 Fiber Amplifier Sensor Communication Unit be

used for the specified pur pose and under the specified co nditions, especial ly
in applications that ca n directly or indir ectly affect human life. You must con­sult with your OMRON representative before applying a Fiber Amplifier Sen­sor Communication Unit to the above mentioned applications.

3 Safety Precautions

!WARNING Provide external emer gency stop circ uits, interlock circu its, limit circuits, and

other safety circuits in addition to any provided within the control system to
ensure safety in the event of product failure or errors resulting from external
causes. Incorrect or unexpected operation may result in serious accidents.

x

Operating Environment Precautions 4

4 Operating Environment Precautions

Do not operate the control system in the following places.

• Where the Fiber Amplifier Sensor Communication Unit is exposed to
direct sunlight.

• Where the ambient temperature or humidity exceed the specified ranges.

• Where condensation may occur due to radical temperature changes.

• Where there is any corrosive or inflammable gas.

• Where there is excessive dust, saline air, or metal powder.

• Where any water, oil, or chemical may splash on the Fiber Ampli fier S en­sor Communication Unit.

• Where the Fiber Amplifier S ensor Com munic ati on Un it i s subj ect to direct
vibration or shock.

!Caution The operating environment of the Fiber Am pli fi er Sen so r Co mmunication Unit

can have a large effect on the longevity and reliability of the system. Improper
operating environments can lea d to mal function, failure, and othe r unforesee­able problems with the Fiber Ampli fier Sensor Communication Uni t. Be sure
that the operating environment is withi n the speci fie d co ndi tio ns at ins tallation
and remains within the specified conditions during the life of the system.

5 Application Precautions

Observe the following precautions when using the Fiber Amplifier Sensor
Communication Unit.

!Caution Failure to abide by the following precautions could lead to faulty operation of

the Fiber Amplifier Sens or Communication Unit or the syst em or could dam­age the Fiber Ampl ifier Sensor Com munication Uni t. Always heed these pre­cautions.

• Provide proper shielding when installing in the following locations:

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

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radiation.

• Locations near power supply lines.

• Do not clean the Fiber Ampl ifi er Se nso r C ommuni catio n Unit wi th or gan ic
solvents, such as paint thinner. Organic solvents will dissolve and discolor
the surface of the Unit.

• Take measures to stabilize the power suppl y to conform to the rated sup­ply (the voltage, frequency, etc.) if it is not stable.

• Do not attempt to take a Fiber Amplifier Sensor Communication Unit
apart, to repair a Fiber Amplifier Sensor Communication Unit, or to modify
a Fiber Amplifier Sensor Communication Unit in any way.

• Never attempt to wire a Fiber Amplifier Sensor Communication Unit while
power is being supplied. Doing so may result in serious electrical shock or
electrocution.

• Do not drop a Fiber Amplifi er Sensor Communication Unit or subj ect it to
excessive shock or vibration. Unit failure or malfunction may result.

• Use the specified communications cables.

xi

Application Precautions 5

• Wire communications within the specified distances.

• Do not wire 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 ter minals
and that the communic ation s and power lines have been otherwise wire d
correctely. Incorrect wiring may result in Unit failure.

• Do not connect or disconnect connectors while the power supply is turned
ON. Doing so may result in Unit failure or malfunction.

• Use the specified power supply voltage.

• Do not turn ON or OFF the power supply to the Mobile Consol e during
communications. Doing so may result in communications errors.

• Tighten the screws on t he co mmuni ca tio ns c onn ec tor s ec urel y. The tight­ening torque is 0.5 to 0.6 N

¼m.

xii

SECTION 1

Overview

This section provides an overview of the Fiber Amplifier Sensor Communication Units for DeviceNet, CompoBus/S, and
RS-422 communications, including their features, system configurations, specificat ions, and connection methods. This
section also covers the differences between different models.

1-1 Features and System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-3 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2-1 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2-2 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-3 Connecting Fiber Amplifier Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-3-1 Identifying Sensors (Fiber Amplifier Units). . . . . . . . . . . . . . . . . . . 7

1-3-2 Number of Sensors Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-3-3 Supported Fiber Amplifier Units . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3-4 Slave Connectors for Fiber Amplifier Units. . . . . . . . . . . . . . . . . . . 8

1-3-5 Power Supply for Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-3-6 Registering the Number of Sensors . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-3-7 Sensor Reset Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1

Features and System Configuration Section 1-1

1-1 Features and System Configuration

1-1-1 Overview

The Fiber Amplifier Sensor Communication Units are Communication Units
for E3X-DA-N-series Digital Fiber Amplifi er Units or E39-TM1 Terminal Block
Units. (See note.) The following three models are available.

• E3X-DRT21 for DeviceNet (functions as a DeviceNet slave)

• E3X-SRT21 for CompoBus/S (functions as a CompoBus/S slave)

• E3X-CIF11 for RS-422 (functions as a CompoWay/F slave)

Note In this manual, Digital Fiber Amplifier Units and Terminal Block Units are

referred to collectively as Fiber Amplifier Units.
The Fiber Amplifier S ensor Communication Un its can be connected to Fiber

Amplifier Units with Connectors. Connecting a Fiber Am plifier Sensor Com­munication Unit to the l eft side of one or more Fiber Amplifi er Units allows
data to be exchanged with the Fiber A mplifier Sensor Units via optical com­munications.

Note When using a Fibe r Amplifier Sensor Communicatio n Unit for DeviceNet or

CompoBus/S communications, however, a Slave Connector with Cord cannot
be connected to a Fiber Amplifier Unit with a Connector. Use a Cordless
Slave Connector instead.

The E3X-MC11 Mobile Console for Fiber Amplifier Units can also be con­nected to a Fiber Amplifier Sensor Communication Unit.

1-1-2 Features

Communications between
a Host and Optical
Sensors

Remote I/O
Communications

Message Communications Sending comman ds from the PLC all ows reading parameters (such as those

Setting, Monitoring, and
Operating Sensors from
the Configurator

Mobile Console
Connection

The Fiber Amplifier Sensor Communication Unit enables communications
between optical sensors and a host, such as an OMRON PLC (CS-series, CJ­series, C200HX/HG/HE, or o ther OMRON PLC), other manufacturer’s PLCs
that support DeviceNet, and personal computers.

Information on the Fiber Am plifier Un it’s ON/OFF output signa ls and in cident
light levels can be sent to the host PL C (master) using rem ote I/O commun i­cations without any spe cial programming (suppor ted only for Fiber Amplifier
Units for DeviceNet and CompoBus/S communications).

for incident light levels), writing parameters (such as those for thresholds), and
various teaching operations. (DeviceNet models u se explicit messages, and
RS-422 Communication Units use CompoWay/F commands.)

With DeviceNet models, the DeviceNet Configurator (Ver. 2. 10 or higher) ca n
be used to set Fiber A mplifi er Sens or Co mmunicat ion Uni t pa rame ters (C om­munication Unit settings and Sensor settings) and download them to the
Communication Unit and Fiber Amplifier Unit as a batch.

The E3X-MC11 Mobile C onsole for Fiber Ampl ifier Units ca n be co nnecte d to
the Communication Unit. Th e head for connecting to the Mobile Console is
not required when it is connected to a Communication Unit.

Note The Mobile Console ca n be us ed in co nju n ction with monitori ng ON /OFF out-

put signals throug h remote I/O com munications. The Mobile Console canno t
be used, however , in conjunction with remote I/O communications for monitor­ing incident light levels, message communications, and using the Configurator
for transferring device parameters.

2

Features and System Configuration Section 1-1

1-1-3 System Configuration

E3X-DRT21 for
DeviceNet
Communications

DeviceNet Configurator

CS/CJ-series DeviceNet Unit

PLC

Serial connector
(For setting, monitoring,

and operating Sensors)

Explicit message

DeviceNet

Fiber Sensors

DeviceNet slave

E3X-MC11
Mobile
Console

Note The Mobile Console cannot be used at the same time as

E3X-DRT21 Fiber
Amplifier Sensor
Communication
Unit for DeviceNet

explicit messages communications and setting, monitor­ing, and operating from Configurator.

E3X-DA-N Digital Fiber
Amplifier Unit (Uses a
Cordless Slave Connector.)

E3X-SRT21 for
CompoBus/S
Communications

Remote I/O
communications

E3X-MC11 Mobile
Console

CompoBus/S Master Unit

PLC

CompoBus/S

Fiber Sensors

E3X-DA-N Digital Fiber Amplifier Unit
(Uses a Cordless Slave Connector.)

E3X-SRT21 Fiber Amplifier
Sensor Communication
Unit for CompoBus/S

CompoBus/S slave

3

Features and System Configuration Section 1-1

E3X-CIF11 for RS-422
Communications

With PLC as Master

Serial Communications
Board/Unit

PLC

CompoWay/F master

CompoWay/F
message

E3X-MC11
Mobile
Console

Note The Mobile Console cannot be used at the same

time as CompoWay/F message communications.

for protocol macros

Power
supply

RS-422 (CompoWay/F)

Fiber
Sensors

CompoWay/F slav e
component

E3X-DA-N Digital Fiber Amplifier Unit

E3X-CIF11 Fiber Amplifier Sensor
Communication Unit for RS-422

With Personal Computer
as Master

Personal computer

RS-232C

B500-AL004

CompoWay/F
message

E3X-MC11
Mobile Console

Note The Mobile Console cannot be used at same

Power
supply

time as CompoWay/F message communications.

RS-422 (CompoWay/F)

Fiber
Sensors

CompoWay/F slave
component

E3X-DA-N Digital Fiber Amplifier Unit

E3X-CIF11 Fiber Amplifier Sensor
Communication Unit for RS-422

4

Specifications Section 1-2

1-2 Specifications

1-2-1 Performance Specifications

Item Specification

E3X-DRT21 E3X-SRT21 E3X-CIF11

Communications method DeviceNet CompoBus/S RS-422
Communications Remote I/O

communications

Messages com­munications

Setting, moni­toring, and
operating Sen­sors from Con­figurator

Mobile Console connection Yes

Power supply (Shared by Commu­nication Unit and all Fiber Am plifier
Units connected to it.)

Maximum number of Sensors that
can be connected per Unit.

(See note 1.)
Applicable Fiber Amplifier Units The following Fiber Amplifier Units with Connectors are supported (See note 2.):

Applicable Slave Connectors for
Fiber Amplifier Units

Power supply cable None None Provided.

ON/OFF data, status, and monitoring inci­dent light levels

(Functions as DeviceNet slave.)

Explicit messages No Functions as

Supported from DeviceNet Configurator
(depends on the parameter editi ng and
device monitoring functions of the slave).

Cannot be used at the same time as moni­toring incident light levels from remote I/O
communications, using explicit messages
communications, or setting, monitoring, or
operating Sensors from the Configurator.

From DeviceNet communications co nnec­tor

13 or 16 (depending on the mode used) 6 or 14 (depending

E3X-DA6
E3X-DAB6
E3X-DAG6
E3X-DA6TW
E39-TM1
E3X-DA6-P
E3X-DA8
E3X-DAB8
E3X-DAG8
E3X-DA8TW
E3X-CN02 Cordless Slave Connector only E3X-CN02 Cord-

ON/OFF data and
status

(Functions as Com­poBus/S slave.)

No No

--- Cannot be used

From CompoBus/S
communications
connector

on the setting fo r
maximum number
of Sensors)

less Slave Connec­tor only

No

CompoWay/F
slave.

at the same time
as CompoWay/F
message com­munications.

From power sup­ply cable

16

E3X-CN12 Slave
Connector with
Cord or E3X­CN02 Cordless
Slave Connector

Note 1. Fiber Amplifier Units that are allocated two unit numbers must be counted

as two Units when counting the number of connected Sensors.

2. Prewired models (E3X-DA11/21/41/51-N, E3X-DAB11-N, etc.) and water­resistant models can not be used. Connecting these Uni ts will di sable the
power reset switch.

5

Specifications Section 1-2

e

3. The following Fiber Amplifier Units can be connected to products from spe­cific lots (or later) only:
E3X-DA6, E3X-DA8, E3X-DAB6, E3X-DAB8, E3X-DAG6, E3X-DAG8,
E3X-DA6TW, and E3X-DA8TW

Even one Unit from a previous lot cannot be connected. The Units that can
be connected must have the following lot numbers or later.

Lot No.

18 6 01

Another method for distinguishing which Units can be connected is by
checking whether the printed information “MADE IN JAP AN” on the front is
underlined or not. This information is underlined for those Units that can be
connected.

• Underlined

Manufactured on June 18, 2001

Year of manufacture expressed as last two
digits of the year.

Month of manufacture. Oct., Nov., and Dec. ar
expressed as X, Y, and Z respectively .

Day of manufacture.

• N ot underlined

The printed infor mation “MADE IN JAPAN” indicat es whether conn ection
is possible, as follows:

• Underlined: Can be connected to Communication Unit.

• Not underlined: Cannot be connected to Communication Unit.

1-2-2 General Specifications

Model E3X-DRT21 E3X-SRT21 E3X-CIF11
Communications

method
Power supply voltage 11 to 25 VDC 14 to 26.4 VDC 11.4 to 26.4 VDC

Internal current con­sumption (per Com­munication Uni t) (See
note.)

Ambient temperature –20 to 55C
Ambient humidity Operating and storage: 35% to 85% (with no condensation)
Storage temperature –30 to 70C
Dimensions 30  34.6  71.3 mm (W  H  D)
Weight (packed state) Approx. 150 g Approx. 150 g Approx. 200 g

Brown :

12 to 24 VDC

Blue : 0 V

Black :
OUTPUT

MADE IN JAPAN

Brown :

12 to 24 VDC

Blue : 0 V

Black :
OUTPUT

MADE IN JAPAN

DeviceNet CompoBus/S RS-422

(12 VDC –5% to
24 VDC +10%)

70 mA max. 30 mA max. 40 mA max.

Note The current supplied to the Sensor is not included in the specification.

6

Connecting Fiber Amplifier Units Section 1-3

1-3 Connecting Fiber Amplifier Units

1-3-1 Identifying Sensors (Fiber Amplifier Units)

Fiber Amplifier Units are connected serially to the right side of the Fiber
Amplifier Sensor Communication Unit, as shown in the following diagram.

Fiber Amplifier Units

Fiber Amplifier Sensor
Communication Unit

DIN Track

Fiber Amplifier Unit
Slave Connectors

MS
NS
SS

←←←←←←←←←←←←←←←

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 7

Unit numbers in ascending order from the left.

Unit 10

Unit 8

Unit 9

Unit 11

Unit 12

Unit 13

Unit 14

Unit 15

←

Unit 16

Fiber
Sensors

Connectors

The Fiber Amplifi er Units con nected to the Co mmunica tion Un it ar e ide ntifie d
according to their unit numbe rs. Unit numbers are automatically assigned to
the Units in order from unit number 1 starting from the Unit next to the Com­munication Unit.

Some Fiber Amplifier Units, i.e., the E3X-DA6TW and E3X-DA8TW, are
assigned two unit numbers.

1-3-2 Number of Sensors Connected

The number of Sensors ( i.e., the number of Fibe r Amp lifie r Unit s) that c an be
connected depends o n the type of Communi cation Unit us ed and its settings
as follows:

Model Setting Number of Sensors

E3X-DRT21 f or De viceNet Remote I/O communications

E3X-SRT21 for Compo­Bus/S

E3X-CIF11 for RS-422 --- 16 max.

Note Fiber Amplifier Units that are allocated two unit numbers (E3X-DA6TW, E3X-

DA8TW) must be counted as two Units when counting the number Sensors.

connected

13 max.

(one-word mode)
Remote I/O communications

16 max.
(two-word mode or two-word
mode with incident light level
monitoring)

One allocated node address 6 max.
Two allocated node addresses 14 max.

7

Connecting Fiber Amplifier Units Section 1-3

1-3-3 Supported Fiber Amplifier Units

The Communication Unit can be connected to the following Fiber Amplifier
Units.

Model

number

E3X-DA6 Standard model NPN None 1 1
E3X-DA8 PNP
E3X-DA6-P ON/OFF inci-

E3X-DA6TW Twin-output
E3X-DA8TW PNP
E3X-DAB6 Mark-detecting
E3X-DAB8 PNP

E3X-DAG6 Mark-detecting
E3X-DAG8 PNP

E39-TM1 Terminal Block

Unit type Output

NPN
dent light level­monitoring
model
(See note 1.)

NPN 2 2
model

NPN 1 1
model
(blue LED)

NPN
models
(green LED)

NPN/PNP --- --­Unit

type

Monitor

output

Number of
thresholds

Number of

allocated

unit numbers

Note 1. The incident light level can be monitored when Unit is turned ON or OFF.

2. Prewired Units (E3X-DA11/21/41/51-N, E 3X-DA B11-N, etc.) and Water­resistant Units (such as E3X -DA14V) cannot be used. Connecting these
Units will disable the power reset switch.

3. Connect ions of E3X-D A6/8, E3X-DA B6/8, E3X- DA G6/8, E3X-D A6T W , and
E3X-DA8TW are restricted depend ing on the lot number. Refer to page 6
for details on restrictions.

4. Install the E39-TM1 Terminal Block Unit as far away from the Communica­tion Unit as possible.

1-3-4 Slave Connectors for Fiber Amplifier Units

Fiber Amplifier Unit s must be used with Slave Connectors ( purchased sepa­rately). When connecting a Fibe r Ampli fier S ensor Com municat ion Unit , how­ever, th e Slave Connector tha t ca n be connected to the Fib er Am pl ifier Uni t is
restricted accor ding to the Communication U nit use d, as shown in the follow­ing table.

(Yes: Can be used; No: Cannot be used)

Fiber Amplifier Sensor

Communication Unit

E3X-DRT21 (DeviceNet) Yes No No
E3X-SRT21 (CompoBus/S) Yes No No
E3X-CIF11 (RS-422) Yes Yes No

Note Do not use a E3X-CN11 or E3X-CN21 Mas ter Connector with a Fibe r Ampli-

fier Unit.

8

Slave Connector for Fiber Amplifier Unit

Cordless With 1-wire cord With 2-wire cord

E3X-CN02 E3X-CN12 E3X-CN22

Connecting Fiber Amplifier Units Section 1-3

1-3-5 Power Supply for Sensors

The Communication Unit supplies power to the Fiber Amplifier Units. The fol­lowing table shows the methods u sed to su pply power to the Co mmunicatio n
Unit and all Fiber Amplifier Units connected to it.

Model Power supply method

E3X-DRT21 (DeviceNet) From DeviceNet communications power supply.
E3X-SRT21 (CompoBus/S) From CompoBus/S communications power supply.
E3X-CIF11 (RS-422) From power supply cable.

1-3-6 Regi stering the Number of Sensors

To detect wh ether communica tions with F iber Amplifi er Units are n ormal, th e
number of Fiber Amplifier Units connected must be registered. When the
number of Fiber Amplifier Units connected is registered, errors can be
detected when there is no optical communications response from Sensors
due to malfunctions in Fiber Amplifier Units. The errors can be detected by the
difference between the number of Fiber Am plifier Units communicating and
the number registered as connected.

A difference between the number of Fiber Amplifier Units connected and th e
number of registered Units is indicated as follows:

• The SS indicator lights red.

• The Sensor Communications Error Flag turns ON.

The following table shows the method used to set the number of Sensors con­nected to the Unit

E3X-DRT21 (DeviceNet) When pin 3 on the DIP switch is OFF:

E3X-SRT21 (CompoBus/S) Use the rotary switch.
E3X-CIF11 (RS-422) When pin 3 on the DIP switch is OFF:



Model Setting method

Use the rotary switch.
When pin 3 on the DIP switch is ON:

Use the Configurator or e xp lic it messages.

Use the rotary switch.
When pin 3 on the DIP switch is ON:

Use CompoWay/F messages.

Note Fiber Amplifier Units that are allocated two unit numbers (E3X-DA6TW, E3X-

DA8TW) must be counted as two Units when counting the number Sensors.

1-3-7 Sensor Rese t Sw it ch

The sensor reset switch is used to replace or add Fiber Amplifier Units without
turning OFF power to the Fiber Amplifier Sensor Communication Unit.

With the Fiber Amplifier Sensor Communication Unit power ON, replace or
perform required work on the Fiber Amplifier Units. After completing work,
press the reset switch to reset all Fiber Amplifier Units and restart normal
communications between the Fiber Amplifier Sensor Communication Unit and
Fiber Amplifier Units.

9

Connecting Fiber Amplifier Units Section 1-3

10

SECTION 2

E3X-DRT21 for Device Net Communications

This section provides details on the Fiber Amplifier Sensor Communication Unit for DeviceNet communications, including
procedures and application examples for remote I/O communications and explicit messages used by the Unit, part names
and functions, operation procedures, wiring, and applications available from the DeviceNet Configurator.

2-1 Overview of DeviceNet Communications Model. . . . . . . . . . . . . . . . . . . . . . 12

2-1-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2-1-2 DeviceNet Communications Overview . . . . . . . . . . . . . . . . . . . . . . 12

2-1-3 Using Remote I/O Communications: Example . . . . . . . . . . . . . . . . 15

2-1-4 Using Explicit Message Communications: Example . . . . . . . . . . . . 15

2-2 DeviceNet Communication Unit Part Names and Functions . . . . . . . . . . . . . 17

2-3 Operating Procedure for DeviceNet Communication Unit. . . . . . . . . . . . . . . 20

2-4 Wiring the DeviceNet Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2-5 DeviceNet Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-5-1 Master Word Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-6 Explicit Message Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2-6-1 Basic Format of Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . 27

2-6-2 READ Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2-6-3 WRITE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2-6-4 Operation Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2-6-5 List of Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

2-6-6 Using Explicit Messages: Example . . . . . . . . . . . . . . . . . . . . . . . . . 43

2-7 Setting, Monitoring, and Operating Sensors from the DeviceNet Configurator 45

2-7-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2-7-2 Setting the Communication Unit and Sen so r s, and Downloading . . 46

2-7-3 Uploading to Communication Unit and Monitoring/Setting

Parameters Online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

2-7-4 Sensor Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-7-5 Online Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

11

Overview of DeviceNet Communications Model Section 2-1

2-1 Overview of DeviceNet Communications Model

2-1-1 Introduction

The E3X-DRT21 for DeviceNet communications is a Communication Unit that
uses the DeviceNet to communicat e with one or more Fi ber Optical Senso rs
through Fiber Amplifier Units, including monitoring ON/OFF output signals
and incident light levels, writing parameters, and controlling operation.

Remote I/O communications can be use d to monitor ON/OFF output signals
and incident light levels without special programming. Explicit m essages can
be used to read and write parameters and the DeviceNet Configurator
enables transferring and monitoring parameters as a batch.

Note When DeviceNet Communication Units are used, however, Fiber Amplifier

Units can output ON/OF F signals via communi cations only. (Fiber A mplifier
Units can be connecte d to Cordless Slave Connectors only. They cannot be
connected to Slave Connectors with Cords.)

Refer to the following manuals when using a DeviceNet Communication Unit:
DeviceNet Operation Manual (Cat. No. W267) and DeviceNet Slave Manual

(Cat. No. W347).

2-1-2 DeviceNet Communications Overview

Remote I/O
Communications

Words in the IN Area of the master can be allocated to the E3 X- DRT21 Com­munication Unit for storage of the ON/OFF data, status data, and incident light
levels of the Sensors.

DeviceNet Unit CPU Unit

Remote I/O
communications

E3X-DRT21 Fiber
Amplifier Sensor
Communication
Unit for DeviceNet

Remote I/O IN
Area

Sensor
Communications Flag

DeviceNet

Unit
1

E.g., 1-word
mode

Unit 1 ON/OFF
Unit 2 ON/OFF

Unit 13 ON/OFF

Unit
2

PLC

Fiber Sensors

Unit
13

12

E3X-DA-N Digital Fiber Amplifier Unit
(Uses Cordless Slave Connector.)

Overview of DeviceNet Communications Model Section 2-1

Communications mode Words Communications data Number of

Sensors

Remote I/O c ommunications
one-word mode

Remote I/O comm unications,
two-word mode

One word in
IN Area

Two words in
IN Area

Sent to the master:
ON/OFF output signals for up to 13 Sensors .
Sent to the master:
ON/OFF output signals for up to 16 Sensors .

13 max. ---

16 max.

Number of Sensors able to communicate.
Number of Sensors connected.

Remote I/O c ommunications
two-word mode with incident
light level monitoring

Explicit Message
Communications

Two words in
IN Area plus
words for
number of
Sensors con­nected

Sent to the master:
ON/OFF output signals for up to 16 Sensors .
Number of Sensors able to communicate.
Number of Sensors that are connected.
Incident light levels of up to 16 Sensors.

16 max. Incident light

Sending explicit messages to the E3X-DRT21 Communication Unit enables
reading and writing Sensor parameters.

DeviceNet Unit CPU Unit

PLC

Ladder program

CMND(490), etc.

Conditions

levels cannot
be monitored if
Mobile Con­sole is con­nected.

E3X-DRT21 Fiber
Amplifier Sensor
Communication
Unit for DeviceNet

E3X-DA-N Digital Fiber Amplifier Unit
(Uses Cordless Slave Connector.)

Message Communication data Conditions

Sends EXPLICIT READ
command

Sends EXPLICIT WRITE
command

Sends EXPLICIT OPERA­TION command

Explicit message

DeviceNet

Fiber Sensors

Unit 1Unit

2

Unit
13

Reads parameters, including ON/
OFF data, incident light levels, and
thresholds.

Writes parameters, including maxi­mum sensitivity, and thresholds.

Performs various operations includ­ing teaching and fine tuning.

Cannot be used
when a Mobile
Console is con­nected.

13

Overview of DeviceNet Communications Model Section 2-1

Transferring, Monitoring,
and Operating from the
DeviceNet Configurator

CS/CJ-series DeviceNet Unit

A DeviceNet Configurator (Ver. 2.10 or higher) can be used to read and write
Sensor parameters from a personal computer.

DeviceNet
Configurator

PLC

Serial connector

Operating and monitoring Sensor settings from Configurator

• Setting and downloading Sensor data.

• M onitoring Sensor ON/OFF data, incident light levels, etc.

DeviceNet

Fiber Sensors

• Performing Sensor teaching operations.

E3X-DRT21 Fiber
Amplifier Sensor
Communication Unit
for DeviceNet

DeviceNet slave

Type Communications contents Conditions

Sensor parameter
setting

Writes any parameters, including maximum
sensitivity, and thresholds.

Sensor monitoring Reads any parameters, including ON/OFF

data, incident light levels, and thresholds.

Sensor teaching Performs various teaching operations.

Cannot be
used when
Mobile Con­sole is con­nected.

14

Overview of DeviceNet Communications Model Section 2-1

2-1-3 Using Remote I/O Communications: Example

The following example is for monitoring the ON/OFF out put status of Fiber
Amplifier Unit 1 using one -word mode (DI P switch pins 1 and 2 are OFF) and
E3X-DRT21 DeviceNet node address 00.

CS1W-DRM21 DeviceNet Unit with fix ed
allocations for remote I/O communications

CS1 CPU Unit

IN Area

DeviceNet

Reflected in IN Area

E3X-DRT21 Node
address 00

IN Area (fixed allocation area 1)

Bit

CIO 3300

Node address 00

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Sensor ON/OFF output status for Unit 1

Fiber Sensors

Unit 1 for which
ON/OFF data is
being monitored.

2-1-4 Using Explicit Message Communications: Example

The following example is for setting the maximum sensitivity of Unit 1.

CS1W-DRM21 DeviceNet Unit, Unit 0
(unit address: FE Hex or 10 Hex)
DeviceNet node address: 05

Explicit message

E3X-DRT21
Node address 00

CS1 CPU
Unit

DeviceNet

CMND(490) instruction

Fiber Sensors

Unit 1 for which
maximum sensitivity
is being set.

15

Overview of DeviceNet Communications Model Section 2-1

■ Command Format for Setting Maximum Sensitivity

Send the following explicit message.

Destination
node
address

00 Hex 16 Hex 009C Hex 0001 Hex None 30 Hex

Note When using the CMND(490) i nstr uction to se nd the attribute I D and data, set

them in the righ tmos t byte (bits 0 0 t o 07 ) , an d s et the le ftmo st byte (bit s 08 to

15) to 00 Hex. (In the above example, the data is set to 0030 Hex.)
When the explicit message has no attribute ID, omit the words for the attribute

ID in the command data specified for the CMND(490) instruction.

Service
Code

Class ID Instance ID Attribute ID Data

Execute
condition

S D01000

D01001 0 0 1 6
D01002 0 0 9 C

D01003 0 0 0 1
D01003 3 0 0 0

DD02000

C D00000

D00001 0 0 0 A
D00002 0 0 0 1
D00003 0 5 F E

D00004 0 0 0 0
D00005 0 0 3 C

A20200

Network
Communications
Enabled Flag

2

0009

151100 or
152412

Online status or
message
communications
enabled

801

Sends 10 bytes of

CMND

D01000
D02000

D00000

Command code
Slave node address: 00, Service code: 16 Hex

Class ID: 009C Hex
Instance ID: 0001 Hex (unit number)
Data: 30 Hex (fixed)

First word of response storage area.

Command data bytes: 9
Response data bytes
Destination network address: 1
Destination DeviceNet node address: 05 Hex

Destination unit address: FE Hex (or 10 Hex)

Response required, communications port No.: 0, retries: 0 Hex

Response monitoring time: 6 s

command data starting at
D01000 to node address 05,
and stores the10 bytes of
response data in local node
starting at D02000 (D00000
is used for control data).

16

DeviceNet Communication Unit Part Names and Functions Section 2-2

2-2 DeviceNet Communication Unit Part Names and Functions

DIP switch

E3X-MC11 Mobile Console Connector
Used to connect the Mobile Console.
When the Mobile Console is

connected, incident light level
monitoring and explicit message
communications are disabled.

Communications Connector
Connector for DeviceNet communications.

Note 1. Do not turn ON the power to the Communication Unit when the Mobile

0

NODE
ADR

1

9

2

8

3

7

4

6

5

0

1

9

2

8

3

7

4

6

5

1

3

5

1

5

13

7

11

9

Rotary switches

ON

1234

Sensor Reset Switch
Resets Sensors connected to the Unit by turning Sensor

MS

NS

SS

power OFF and ON again.

Indicators

Power Supply Connector
The E3X-DRT21 is supplied power from the Communications

Connector, so there is no power supply cable.

Console is connected. Communicat ions will not be established with the
Sensors if th e Mobile Co nsole is al read y co nnecte d when the Unit power
is turned ON.

2. Always set the Sensors to RUN mode when using the Fiber Amplifier Sen­sor Communication Uni t for DeviceNet. When ot her m odes ( SET or AD J)
are set, the Fiber Amplifier Sensor Communication Unit cannot read or
write Sensor data.

3. A Sensor communicati ons error will occur un der the following conditions
after the Mobile Console is connected with it’s power turned ON.

• When the power to the Mobile Console is turned OFF.

• When the Mobile Console is left idle while connected, causing the
power to automatically turn OFF.

• When the Mobile Console battery goes low, causing the power to turn
OFF.

Do not allow the above conditions to occur when using the Mobile Console,
or use the Mobile Consol e when problems wi ll not o ccur even if a Sensor
communications error occurs.

Indicators The following table shows the operation of the indicators.

Indicator Name Color Status Meaning

MS Module

status

Green Lit Operating normally.

Flashing Not set.

Red Lit A fatal error has occurred.

Flashing A non-fatal error has occurred.

--- Not lit The power is OFF.

17

DeviceNet Communication Unit Part Names and Functions Section 2-2

Indicator Name Color Status Meaning

Normal Status of
Indicators

NS Network

status

SS Sensor

communi­cations sta­tus

MS Operation is normal when the MS indicator is lit green.
NS Operation is normal when the NS indicator is lit green

(online and communications connected).

SS Sensors are communicating when the SS indicator is lit green.

Green Lit DeviceNet is online and communica-

tions are connected.

Flashing DeviceNet is online and communica-

tions are not connected.

Red Lit A fatal DeviceNet communications

error has occurred.

Flashing A non-fatal DeviceNet communica-

tions error has occurred.

--- Not lit DeviceNet is offline or power is OFF.
Green Lit Unit is communicating with Sensors.
Red Lit A Sensor communications error has

occurred.

--- Not lit Sensor communications are on
standby or power is OFF

Switches

Rotary Switches

DIP Switch

0

1

9

2

8

3

X10

7

4

6

5

0

1

9

2

8

3

7

4

6

5

1

3

15

5

13

7

11

9

DeviceNet Node Address Setting
Set the DeviceNet node address to between 00 and 63.

X1

(64 to 99 are not used.)

Connected Number of Sensors Setting
Registers the number of Sensors connected. By setting the number of Sensors, errors

can be detected in the configuration.
When the DIP switch pin 3 is turned ON, however, this rotary switch is disabled. Instead,

the values set from the DeviceNet Configurator or using explicit messages are enabled.

Note Fiber Amplifier Units (E3X-DA6TW and E3X-DA8TW) that are allocated two unit

numbers must be counted as two Units when counting the number of connected
Sensors.

ON

1 234

Operating mode (MODE0)

Operating mode (MODE1)

Method for setting number of Sensors

Reserved for system use.

■ Pins 1 and 2: Operating Mode Setting

These pins set the operating mode. The data allocated in the master’s IN Area
depends on the operat ing mode. For fur ther details, refer to 2-5 DeviceNet
Remote I/O Communications.

Pin 1

(MODE0)

OFF OFF Remote I/O communications one-word mode 13 max.
ON OFF Remote I/O communications two-word mode 16 max.
OFF ON Remote I/O communications two-word mode

ON ON Cannot be set. ---

Pin 2

(MODE1)

Operating mode setting Number of

Sensors

16 max.

with incident light level monitoring

18

DeviceNet Communication Unit Part Names and Functions Section 2-2

Note Fiber Amplifier Units (E3X-DA6TW and E3X-DA8TW) that are allocated two

unit numbers must be counted as two Units when counting the number of con­nected Sensors.

■ Pin 3: Controlling the Setting of the Number of Connected Sensors

The number of Sensors connected is registered by using either a rotary switch
or the Configurator.

When pin 3 is ON, r egi stering the number of Se ns ors i s ena bled from Config­urator or by using explicit messages enabled, and the value for the number of
Sensors enabled for communications that is stored i n the inter nal memor y of
the Fiber Amplifie r Sensor Communic ation Unit is us ed. The default value in
the internal memor y is 16. This value can be changed from the DeviceNet
Configurator. The setting methods are shown in the following table.

Pin 3 Method for setting the number of Sensors

OFF Use rotary switch to register number of Sensors.
ON Use Configurator or e xp lic it mes sa ge s to regi ste r n um be r of Se ns ors.

Note When DIP switch pin 3 is ON (register ing from Configurator or using explicit

messages), pin 1 is OF F, a nd pin 2 is ON (remote I/O communi cations two­word mode with incident light level monitor ing) , the value in the i nternal mem­ory of the F i ber A mp li fie r Se nso r Com mu nicati on Uni t for the number o f Un its
being monitored for incident light levels is used. The d efault value in the i nter­nal memory is 16. This value can be se t to a different value from t he number
of Sensors connected. When pin 3 is OFF (registering from rotary switch), pin
1 is OFF, and pin 2 is ON, the rotary switch setting applies to both the number
of Sensors connected and the number of Units monitoring incident light level.

■ Pin 4: Reserved for System Use

This pin must always be OFF.

Sensor Reset Switch Press this switch to reset the connected Sensors by executing power interrup-

tion processing. This switch is used in the following case.
If the number of Sensors with co mmunications enabled does not match the

number of Sensors connected , one or more Sensors may have become dis­connected. The power res et switch is require d to enable the Sensors to be
reconnected properly and for communications to be reestablished between
Sensors. Tur ning OFF th e power supply would disc onnect the F iber Amplifi er
Sensor Communication Un it f ro m D eviceNet, whic h may effect the enti re s y s­tem. The Sensor reset switch is thus used to reestablish communications with
the Sensors.

Note The E3X-DRT21 automaticall y uses the DeviceNet baud rate of the master.

Therefore, the DIP switch is not required to set the baud rate.

19