Omron E5ZN-DRT User manual

OPERATION MANUAL
Cat. No. H119-E1-01
E5ZN-DRT
DeviceNet Communications Unit
for E5ZN Temperature Controllers

E5ZN-DRT
DeviceNet Communications Unit
for E5ZN Temperature Controllers
Operation Manual
Produced October 2002

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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.
!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
!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 “PV” is used in this manual to indicate the process value of the E5ZN Temperature
Controller.
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.
OMRON, 2002
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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vii
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiii
6 EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
SECTION 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Features and System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-3 Connecting Temperature Controllers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1-4 Initial Temperature Controller Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SECTION 2
Operating Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2-1 Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2-2 Startup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SECTION 3
Parts, Installation, and Wiring . . . . . . . . . . . . . . . . . . . . . . . 21
3-1 Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3-2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3-3 Wiring the Terminal Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3-4 DeviceNet Communications Cables Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SECTION 4
Remote I/O Communications . . . . . . . . . . . . . . . . . . . . . . . . 35
4-1 Allocation Method Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4-2 Simple I/O Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4-3 Allocating I/O from the Configurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4-4 Allocating Data in the Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4-5 Ladder Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
SECTION 5
Operations from the Configurator . . . . . . . . . . . . . . . . . . . . 69
5-1 List of Operations from the Configurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5-2 Operations from the Edit Device Parameters Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5-3 Maintenance Mode Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5-4 DeviceNet Communications Unit Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

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TABLE OF CONTENTS
SECTION 6
Explicit Message Communications . . . . . . . . . . . . . . . . . . . . 89
6-1 Overview of Explicit Message Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
6-2 Sending CompoWay/F Commands to a Temperature Controller . . . . . . . . . . . . . . . . . . . . . 93
6-3 Examples Using CompoWay/F Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
6-4 Example of Sending Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
6-5 Sending Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
SECTION 7
Communications Performance . . . . . . . . . . . . . . . . . . . . . . . 109
7-1 Remote I/O Communications Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
7-2 Message Communications Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
SECTION 8
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 121
8-1 Indicators and Error Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
8-2 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Appendices
A Connecting to a Master from Another Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
B List of Connectable Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

ix
About this Manual:
This manual describes the installation and operation of the E5ZN-DRT DeviceNet Communications
Unit for E5ZN Temperature Controllers and includes the sections described below.
Please read this manual carefully and be sure you understand the information provided before
attempting to install or operate the E5ZN-DRT DeviceNet Communications Unit. Be sure to read the
precautions provided in the following section.
Precautions provides general precautions for using the E5ZN-DRT DeviceNet Communications Unit,
Programmable Controller, and related devices.
Section 1 introduces the features and system configuration of the E5ZN-DRT DeviceNet Communica-
tions Unit, the types of E5ZN Temperature Controller that can be used, and other basic information.
Section 2 outlines the basic operating procedures of the E5ZN-DRT DeviceNet Communications Unit.
Section 3 describes the methods used to install and wire the E5ZN-DRT DeviceNet Communications
Unit and the E5ZN Temperature Controller. The settings of DeviceNet Communications Unit switches
are also described.
Section 4 describes the input (IN) areas and output (OUT) areas that E5ZN-DRT DeviceNet Commu-
nications Units can use for remote I/O communications. The methods to allocate data for master com-
munications are also described.
Section 5 describes the DeviceNet Configurator operations that can be used for the E5ZN-DRT
DeviceNet Communications Unit except for allocation procedures, which are described in SECTION 4
Remote I/O Communications.
Section 6 describes how to send explicit messages to the E5ZN-DRT DeviceNet Communications
Unit, including how to send CompoWay/F commands using explicit messages. CompoWay/F com-
mands are supported by the E5ZN Temperature Controller.
Section 7 provides information on the time required for a complete communications cycle, for an out-
put response to be made to an input, to start the system, and to send messages.
Section 8 describes error processing, periodic maintenance operations, and troubleshooting proce-
dures needed to keep the DeviceNet Network operating properly. Details on resetting replaced Units
are also provided. Read through the error processing procedures in both this manual and the operation
manual for the DeviceNet master being used before operation so that operating errors can be identified
and corrected more quickly.
The Appendices provide the handling methods for EDS setting files required for multivender environ-
ments, the device profile of the E5ZN-DRT DeviceNet Communications Unit, and information on
related products.
!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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xi
PRECAUTIONS
This section provides general precautions for using the E5ZN-DRT DeviceNet Communications Unit, Programmable
Controller, and related devices.
The information contained in this section is important for the safe and reliable application of the DeviceNet
Communications Unit. You must read this section and understand the information contained before attempting to
set up or operate a DeviceNet Communications Unit and PLC system.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
6 EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

xii
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 introducing FA equipment
• Personnel in charge of designing FA systems
• Personnel in charge of installing and connecting FA equipment
• 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 installing and operating OMRON
DeviceNet Communications Units. Be sure to read this manual before opera-
tion and keep this manual close at hand for reference during operation.
!WARNING It is extremely important that a PLC and all PLC Units be used for the speci-
fied purpose and under the specified conditions, especially in applications that
can directly or indirectly affect human life. You must consult with your OMRON
representative before applying a PLC system to the above mentioned applica-
tions.
3 Safety Precautions
!WARNING Provide emergency stop circuits, external interlock circuits, limit circuits, and
other safety circuits in addition to any provided within the PLC to ensure
safety in the event of errors resulting from product failure or external causes.
This measures must also be provided as external measures, not only in the
PLC. Incorrect operation can result in serious accidents.
!Caution Always connect terminal screws and cable connector screws to the specified
torque. Loose screws can result in fires or faulty operation.
Communications cable connector screws: 0.25 and 0.3 N·m
Terminal screws: 0.40 to 0.56 N·m.
!Caution Confirm safety at the destination node before transferring a program to
another node or changing contents of the I/O memory area. Doing either of
these without confirming safety may result in injury.
!Caution Execute online edit only after confirming that no adverse effects will be
caused by extending the cycle time. Otherwise, the input signals may not be
readable.

xiii
Operating Environment Precautions 4
!Caution Never touch any of the terminals while power is being supplied. Doing so may
result in serious electrical shock or electrocution.
!Caution Never attempt to disassemble any Units while power is being supplied. Doing
so may result in serious electrical shock or electrocution.
!Caution Do not allow any pieces of metal or conductive materials to enter the Unit.
They can cause electric shock, fire, or Unit failure.
4 Operating Environment Precautions
!Caution Do not operate the control system in the following locations:
• Locations subject to direct sunlight
• Locations subject to severe changes in temperature, condensation, or
icing
• Locations subject to dust or corrosive gases (particularly sulfurized or
ammonia gas)
• 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.
!Caution Do not operation the control system in locations subject to temperatures or
humidity outside the range specified in the specifications.
!Caution The operating environment of the PLC System can have a large effect on the
longevity and reliability of the system. Improper operating environments can
lead to malfunction, failure, and other unforeseeable problems with the PLC
System. Be sure that the operating environment is within the specified condi-
tions at installation and remains within the specified conditions during the life
of the system.
5 Application Precautions
Observe the following precautions when using the DeviceNet Communica-
tions Unit or the PLC.
!Caution Do not exceed the communications distances given in the specifications.
!Caution Do not lay communications cables near or parallel to high-voltage lines or
power supply lines.
!Caution Use the specified communications cables.

xiv
EC Directives 6
!Caution Do not attempt to disassemble, repair, or modify any Units. Any attempt to do
so may result in malfunction, fire, or electric shock.
!Caution Do not drop the Unit or expose it to excessive shock or vibration. Unit failure
or malfunction may result.
!Caution Always use the power supply voltages specified in the operation manuals. An
incorrect voltage may result in malfunction or burning.
!Caution Connect terminals with the correct polarity and lay communications and
power supply lines correctly. System failure can result if these are not per-
formed correctly.
!Caution Do not connect or disconnect any connectors while the power supply is turned
ON. System failure or malfunction may occur.
!Caution Double-check all wiring and switch settings before turning ON the power sup-
ply. Incorrect wiring may result in burning.
!Caution Take appropriate measures to ensure that the specified power with the rated
voltage and frequency is supplied. Be particularly careful in places where the
power supply is unstable. An incorrect power supply may result in malfunction.
!Caution Do not use organic solvents to clean the Unit.
!Caution Do not replace the Unit while the power supply is turned ON.
6 EC Directives
•EMCDirectives
• Low Voltage Directive
6-1 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. 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.

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EC Directives 6
6-2 Conformance to EC Directives
The E5ZN-DRT DeviceNet Communications Unit complies with EC Directives.
To ensure that the machine or device in which the Unit is used complies with
EC Directives, the Unit must be installed as follows:
1,2,3... 1. The Unit must be installed within a control panel.
2. You must use reinforced insulation or double insulation for the DC power
supplies used for the communications power supply, internal power supply,
and I/O power supplies.
3. Units complying with EC Directives also conform to the Common Emission
Standard (EN50081-2). Radiated emission characteristics (10-m regula-
tions) may vary depending on the configuration of the control panel used,
other devices connected to the control panel, wiring, and other conditions.
You must therefore confirm that the overall machine or equipment complies
with EC Directives.
The following example shows one means of reducing noise.
1,2,3... 1. Noise from the communications cable can be reduced by installing a ferrite
core on the communications cable within 10 cm of the DeviceNet Unit.
Ferrite Core (Data Line Filter): 0443-164151 (manufactured by Fair-Rite Prod-
ucts Co., Ltd.)
Impedance specifications
25 MHz: 105 Ω
100 MHz: 190 Ω
30 mm
13 mm
29 mm
33 mm
2. Wire the control panel with as thick and short electric lines as possible and
ground to 100 Ωmin.
3. Keep DeviceNet communications cables as short as possible and ground
to 100 Ωmin.
30 mm
13 mm 29 mm
33 mm

xvi
EC Directives 6

1
SECTION 1
Overview
This section introduces the features and system configuration of the E5ZN-DRT DeviceNet Communications Unit, the
types of E5ZN Temperature Controller that can be used, and other basic information.
1-1 Features and System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-2 Overview of Unit Communications Functions. . . . . . . . . . . . . . . . . 4
1-1-3 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-2-1 DeviceNet Communications Specifications . . . . . . . . . . . . . . . . . . . 9
1-2-2 Function and Performance Specifications . . . . . . . . . . . . . . . . . . . . 10
1-2-3 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1-3 Connecting Temperature Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1-3-1 Temperature Controller ID and Number of Connectable Units . . . . 11
1-3-2 Temperature Controller Communications . . . . . . . . . . . . . . . . . . . . 12
1-3-3 Temperature Controller Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1-3-4 Temperature Controller Power Supply . . . . . . . . . . . . . . . . . . . . . . . 12
1-3-5 Temperature Controller Registration . . . . . . . . . . . . . . . . . . . . . . . . 13
1-4 Initial Temperature Controller Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2
Features and System Configuration Section 1-1
1-1 Features and System Configuration
1-1-1 Features
The DeviceNet Communications Unit enables a DeviceNet master to commu-
nicate with multiple E5ZN Temperature Controllers through the DeviceNet to
monitor their process values, write parameters, and control operation.
Using DeviceNet Functions
Simultaneously Managing
Multiple Temperature
Controllers from the
Master
Up to 16 Temperature Controllers can be connected to a single DeviceNet
Communications Unit. The DeviceNet Communications Unit is connected to
the master as a DeviceNet slave. Up to 63 slaves can be connected to a sin-
gle master, so multiple DeviceNet Communications Units and other types of
slaves can be managed as part of the same system.
Remote I/O
Communications The master and DeviceNet Communications Units can share I/O by using
remote I/O communications. Data in the E5ZN Temperature Controllers, such
as process values (PVs) and set points (SPs), can be allocated for communi-
cations with the master to enable sending and receiving the allocated data via
remote I/O communications, without requiring special programming.
• Remote I/O Communications without a Configurator
Using the DeviceNet Communications Unit, basic Temperature Controller
data can be allocated for communications with the master, such as pro-
cess values (PVs) and set points (SPs), without requiring a Configurator.
This is called “simple I/O allocation.” Simple I/O allocation can be easily
set from the DIP switch on the rear of the DeviceNet Communications
Unit.
• User-set Data Allocations with a Configurator
The specific data required for communications with the master can also
be allocated by using I/O allocations from the Configurator.
Explicit Message
Communications By executing commands from the PLC, various operations can be performed,
including reading/writing specific parameters, such as reading process values
or writing set points, and performing operations using operation commands.
CompoWay/F communications commands can also be executed using explicit
message communications.
Setting, Monitoring, and
Operating the
Temperature Controller
from the Configurator
The Configurator can be used to create the device parameters for the
DeviceNet Communications Unit, including settings for the DeviceNet Com-
munications Unit and setting for the Temperature Controllers. The Configura-
tor can then be used to download the parameters together to the DeviceNet
Communications Unit and Temperature Controllers. (See note.)
The Configurator can also be used to monitor Temperature Controller process
values, and execute operation commands for the Temperature Controllers.
The Configurator can be used to copy parameters between Temperature Con-
troller channels, allowing the initial parameters of Temperature Controllers
requiring the same or similar parameters to be easily set.
Automatically Detects
Baud Rate Previously, the baud rate had to be set for each slave, but the DeviceNet Com-
munications Unit automatically detects and matches the baud rate of the mas-
ter, so this setting is not required. (If the master's baud rate is changed, turn
OFF the communications power supply to the DeviceNet Communications
Unit and then turn it ON again.)

3
Features and System Configuration Section 1-1
Wide Range of Maintenance Functions
Copy Function (Uploading
or Downloading
Temperature Controller
Parameters)
Parameters for all Temperature Controllers connected to the DeviceNet Com-
munications Unit can be uploaded or downloaded together. (The parameters
that have been read are stored in the DeviceNet Communications Unit.) When
Temperature Controllers are replaced, the new Controllers can be easily reset
onsite without using a Configurator.
Monitoring Network Power
Voltage The DeviceNet network communications power voltage values (present value,
peak value, and bottom value) can be stored in the DeviceNet Communica-
tions Unit, and the recorded voltages can be read from the Configurator. By
setting the voltage monitor value in the DeviceNet Communications Unit, noti-
fication will be sent to the master if the voltage level drops below the monitor
value.
Monitoring the Unit
Conduction Time The conduction time of the DeviceNet Communications Unit’s internal circuit
power supply can be recorded. The recorded conduction time can be read
from the Configurator or using explicit messages. By setting a monitor value
for the conduction time in the DeviceNet Communications Unit, notification will
be sent to the master when the total time exceeds the monitor value.
Unit Comments Any name can be set for a DeviceNet Communications Unit and recorded in
the Unit. Specifying names enables the user to easily differentiate the applica-
tions of the DeviceNet Communications Units when setting and monitoring
them from the Configurator.
Setting Temperature
Controller Comments A name can be set for each Temperature Controller channel connected to the
DeviceNet Communications Unit and recorded in the DeviceNet Communica-
tions Unit. Specifying names enables the user to easily differentiate the func-
tion of each channel when setting and monitoring them from the Configurator.
Monitoring
Communications Error
History
The error status for the last four communications errors (the causes and com-
munications power voltage when the communications error occurred) can be
recorded in the DeviceNet Communications Unit. The recorded communica-
tions error history can be read from the Configurator.
Monitoring Temperature
Controller Power Status The power supply to the Temperature Controllers can monitored to confirm
that power is ON and send notification of the status to the master. (The power
status can be checked for Temperature Controllers connected to the
DeviceNet Communications Unit only.) The power status of the Temperature
Controllers can be read from the Configurator or using explicit messages.
Monitor Temperature
Controller Conduction
Time and RUN Time
The conduction time of the Temperature Controller’s internal circuit power
supply or the RUN time of the Temperature Controller can be totaled and
recorded. (Select whether to total the conduction time or RUN time by setting
the monitor mode.) The recorded total time can be read using the Configura-
tor or explicit messages. By setting a monitor value in the DeviceNet Commu-
nications Unit, notification will be sent to the master if the Unit conduction time
exceeds the monitor value.
Easy Expansion
Connecting Existing
Terminal Units DeviceNet Communications Units can be connected to the Terminal Units
used for previous (non-DeviceNet) E5ZN Temperature Controllers, so existing
Temperature Controllers can easily be connected to DeviceNet.
Internal Circuit Power
Supply for Slaves Not
Required
The internal circuit power of the DeviceNet Communications Unit is supplied
from the DeviceNet communications power supply. Therefore, power supply
wiring is not required for the DeviceNet Communications Unit. (The Tempera-
ture Controller power supply must be supplied separately.)

4
Features and System Configuration Section 1-1
1-1-2 Overview of Unit Communications Functions
Remote I/O
Communications DeviceNet Communications Unit data is shared with the master’s IN Area and
OUT Area through DeviceNet. Up to 100 words (200 bytes) each can be used
as the IN Area and OUT Area for the DeviceNet Communications Unit. (The
first two words (four bytes) of the OUT Area are always allocated as Output
Enable Bits).
The IN Area is allocated for data such as the communications status and the
process values of the Temperature Controller channels and the OUT Area is
allocated for the set points of the channels and other data.
When using a CS/CJ-series DeviceNet Unit as the master, the IN Area can be
divided into two areas. One is normally used for input data (such as Tempera-
ture Controller process values), and the other can be used for reading status
(such as Temperature Controller status). Even when the IN Area is divided
into two areas, however, the total number of words that can be used for the IN
Area is still 100 words (200 bytes).
DeviceNet Unit
DeviceNet
PLC
CPU Unit
Unit 0, Ch 1 SP
Unit 0, Ch 2 SP
Unit 1, Ch 1 SP
Unit 15, Ch 2 PV
Unit 0, Ch 1 PV
Unit 0, Ch 2 PV
Unit 1, Ch 1 PV
Unit 15, Ch 2 PV
Input Area
Unit 0 Unit 1
E5ZN Temperature Controllers
Remote I/O communications
output area
Remote I/O
communications
E5ZN-DRT
DeviceNet Communications Unit Unit
15

5
Features and System Configuration Section 1-1
Explicit Message
Communications Explicit message commands can be sent from the master to the DeviceNet
Communications Unit to read or write the parameters of the connected Tem-
perature Controllers. CompoWay/F communications commands that were
previously used for Temperature Controllers can also be sent (in explicit mes-
sage format).
The DeviceNet Communications Unit’s own parameters can also be read or
written.
DeviceNet
PLC
DeviceNet Unit CPU Unit
Ladder program
Explicit message communications
Unit 0 Unit 1
E5ZN Tem
p
erature Controllers
CMND or other
communications
instruction
E5ZN-DRT
DeviceNet Communications Unit Unit
15