Omron DEVICENET#05-2003, DRT1-COM, GT1, GT1-ID16, GT1-OD16MX Operation Manual
...
OPER ATION MANUAL
Cat. No. W348-E1-05
DRT1-COM
GT1 Series
DeviceNet
MULTIPLE I/O TERMINAL
DRT1-COM
GT1 Series
DeviceNet
MULTIPLE I/O TERMINAL
Operation Manual
Revised May 2003
iv
v
Notice:
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 indic ate and classify pr ecautions in this manual . Always heed
the information provided with them. Failure to heed preca utions can result in in jury to pe ople or damage to property.
!DANGER Indicates an imminentl y hazardous situation whi ch, if not avoided, will result in death or
serious inju ry.
!WARNING Indicates a potentially hazardous situatio n which, if not avoided, could result i n death or
serious inju ry.
!Caution Indicates a potentially haza rdous 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 ap pears in some displays and on some OMRON produ cts, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything
else.
Visual Aids
The following headings appear in the left co lumn of the manual to help you locate different types of
information.
Note Indicates information of pa rticular inte rest for efficient and convenient opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
Trademarks and Copyrights
COMBICON is a registered trademark of Phoenix Contact K.K.
DeviceNet is a registered trademark of the Open DeviceNet Vendor Association, Inc.
PowerTap is a registered trademark of the Allen-Bradley Company, Inc.
OMRON, 1998
All rights reserved. No part of this publication may be reproduced, stored in a retriev al syste m , or tran smit ted, 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 in formatio n conta ined herein. Moreover, because OMRON is con-
stantly striving to improve its high-quality products, the information contained in this manual is subject to change without
notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility
for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in
this publication.
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TABLE OF CONTENTS
PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiii
6 EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
SECTION 1
MULTIPLE I/O TERMINAL. . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 MULTIPLE I/O TERMINAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SECTION 2
Hardware Setup and Operational Check. . . . . . . . . . . . . . . 19
2-1 Basic Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2-2 Specific Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SECTION 3
Sample Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3-1 Examples of Counter Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SECTION 4
Basic I/O Unit Specifications. . . . . . . . . . . . . . . . . . . . . . . . . 35
4-1 Communications Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
4-2 Specifications Common to All Basic I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4-3 Transistor Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4-4 Transistor Output Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4-5 Relay Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
SECTION 5
Special I/O Unit Specifications . . . . . . . . . . . . . . . . . . . . . . . 97
5-1 Analog Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
5-2 Analog Output Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
5-3 GT1-TS04T and GT1-TS04P Temperature Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
5-4 GT1-CT01 Counter Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
SECTION 6
Communications Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
6-1 Remote I/O Communications Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
SECTION 7
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 195
7-1 Normal Indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
7-2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
7-3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Appendices
A Slave Device Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
B Connectable Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
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About this Manual:
This manual descri bes the operation of the DeviceNet MULTIPLE I/O TERMINAL and includes th e
sections described below.
Please read this manual carefully and be sure you understand the information provided before
attempting to operate the MULTIPLE I/O TERMINAL.
Section 1 provides an overview of the MULTIPLE I/O TERMINAL, including its features and functions.
Section 2 provides the basic procedure for operation and includes an actual example.
Section 3 provides some examples of programs used with the Counter Unit.
Section 4 provides the ba sic spec ificati ons for the I/O Units incl uding Communicat ions Uni ts, Transis-
tor Input and Output Units, and Relay Output Units.
Section 5 provides the specifications for Special I/O Units, including the Analog Input Unit, the Analog
Output Unit, the Tempera ture Input Unit, and th e Counter Unit. Setting p rocedures for a Configurator
are also provided.
Section 6 provides characteristics for communications in the DeviceNet Unit and describes how to calculate the times required for communications between Units.
Section 7 provides procedures for dealing with errors as well as basic maintenance procedures.
The Appendices provide Slave device profiles and lists of connectable devices.
!WARNING Failure to read and understand the informati on provided i n this ma nual may result in p er-
sonal injur y o r d eath , dam age to th e pr od uc t, or produ ct failure. Please read each secti on
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.
xi
PRECAUTIONS
This section provides general precautions for using the Programmable Controller (PC) Systems and related devices.
The information contained in this section is important for the safe and reliable application of PC Systems. Y ou must
read this section and understand the information contained before attempting to set up or operate a PC System.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
6 EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
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 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 other 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 performance cha racteristics of the product 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 programming and operating OMRON PC
Systems. Be sure to re ad this manual before attempting to use the software
and keep this manual close at hand for reference during operation.
!WARNING It is extremely importa nt that a PC System and all PC Units be used for the
specified pur pose and under the specified conditions, espec ially in applications that can dir ectly or indirectly affect human life. You must consult with
your OMRON representative before applying a PC Sy stem to t he abovementioned applications.
3 Safety Precautions
!WARNING Never attempt to disassemble any Units while power is being sup plied. Doing
so may result in serious electrical shock or electrocution.
!WARNING Never touch any of the terminals while power is being supplied. Doing so may
result in serious electrical shock or electrocution.
4 Operating Environment Precautions
Do not operate the control system in the following places.
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified
in the specifications.
• Locations subject to condensation as the result of severe changes in temperature.
• Locations subject to corrosive or flammable gases.
• Locations subject to dust (especially iron dust) or salts.
• Locations subject to shock or vibration.
• Locations subject to exposure to water, oil, or chemicals.
xiii
Application Precautions 5
• Take appropriate and sufficient countermeasures when installing systems
in the following locations.
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.
!Caution The operating environment of the PC System ca n have a large effect on the
longevity and reliability of the sy stem. Improper operating environme nts can
lead to malfunction, failure, and other unforeseeable problems with the PC
System. Be sure that the operati ng environment is within the sp ecified cond itions at installation and remai ns within the specified conditions dur ing the life
of the system.
5 Application Precautions
Observe the following precautions when using the MULTIPLE I/O TERMINAL.
!WARNING Failure to abide by the following precautions coul d lea d to s er ious o r pos sibly
fatal injury. Always heed these precautions.
• Always ground the syst em to 100
Ω or less when installing th e system to
protect against electrical shock.
• Always turn OFF the power supply to the system before attempting any of
the following. Performing any of the following with the power supply turned
ON may lead to electrical shock:
• Mounti ng or removing any Units (e.g., Power Suppl y Unit, I/O Units,
CPU Unit, etc.) or memory cassettes.
• Assembling any devices or racks.
• Connecting or disconnecting any cables, connectors, or wiring.
!Caution Failure to abide by the following precautions could lead to faulty operation of
or damage to the MULTIPLE I/O TERMINAL. Always heed these precautions.
• Use the Uni ts only with the power supplies and voltages spe cified in the
operation manuals. Other power supp lies and voltages may damage the
Units.
• Take measu res to stabilize the power suppl y to conform to the rated supply if it is not stable.
• Provide ci rcuit breakers and other safety measures to provide protection
against shorts in external wiring.
• Do not a pply voltages exceeding the rated input voltage to Input Units.
The Input Units may be destroyed.
• Do not apply voltages exceeding the max imum switching ca pac i ty to Output Units. The Output Units may be destroyed.
• Always disconnect the LG terminal when performing withstand voltage
tests.
• Install all Units according to instructions in the operation manuals.
Improper installation may cause faulty operation.
• Be su re to ti ght en B ackpla ne s crews, terminal screws, and cable connector screws securely.
• Do not at tempt to take any Units apart, to repair any Units, or to modify
any Units in any way.
xiv
Application Precautions 5
• Do not u se communi cations cables or I/O c ables in paralle l to or close t o
high-tension, high-rate c urrent carr ying lines. Doing so m ay cause faulty
operation.
• Be sure to install the MULTIPLE I/O TERMINAL in th e proper direction.
Not doing so may cause faulty operation.
• When attaching Units to the DIN track, be s ure to attach them securely.
Not doing so may cause the Units to be damaged.
• Use this product within the specified ranges for communications distances and connection dista nces. Not doing so may lead to faulty operation.
• Use t he sp ecified cables when ma king communic ations c onnec tions. No t
doing so may cause faulty operation.
• Be sure to wire the communications paths, the communications power
supplies, the internal power supplies, and the I/O power supplies correctly. Use voltag es for the power sup plies that are within the specified
ranges. Not doing so may cause malfunction.
• Do not, un der any circumstances, use this p roduct with loads exceeding
the contact rating values. Doing so may caus e deterioration of i nsulation
and damage.
• The life-expectancy of the relays depends greatly on the switching conditions. Before practical use of the product, per form a tr ial operation of the
product in the actual conditions in which it will be used. Use the product at
a switching frequency that will allow effici ent operation. Continued use of
the product in conditi ons cau sing redu ced effic iency wil l cause deter ioration of insulation and damage.
• Connection Cables
• Before switching ON power supplies, check that the connecto rs are
mounted securely.
• Check that the connectors for the I/O Unit interfaces are securely
locked.
• Tightening Torques
Check that all the screws for the Units are tightened to the correct torqu e.
Not doing so may cause faulty operation.
• Internal power supplies, I/O power supplies, terminal screws:
0.3 to 0.5 N • m
• Communications cable, communications connector screws:
0.25 to 0.35 N • m
• High-density I/O Unit connector screws: 0.25 to 0.35 N • m
• Cleaning
• Do no t used thinner- based products for clean ing. Doing so m ay dissolve attachment areas or cause discoloration.
• Power Supply
• Use s eparate power suppli es for communication s power supplie s, internal power supplies, I/O power supplies, loa d power supplies, and
encoder power supplies. Not doing so may lead to faulty operation.
!Caution The following precautions are nece ssary to en sure the general safety of the
system. Always heed these precautions.
• Provide double safety mechanisms to handle incorrect signals that can be
generated by broken signal lines or momentary power interruptions.
• Provide external interlock circuits, limit circuits, and other safety circuits in
addition to any provided within the PC System to ensure safety.
xv
EC Directives 6
6 EC Directives
The MULTIPLE I/O TERMINAL conforms to EMC as follows:
EMC Directives
OMRON devices that comply with EC Directives also conform to the rel ated
EMC standards so tha t th ey can b e m or e e as il y built i nto ot her d evices or the
overall machine. The actual products have been checked for conformity to
EMC standards (see the following note). Whether the products conform to the
standards in the s ystem used by the custo mer, however, must be che cked by
the customer.
EMC-related performa nce of the OMRON devices that co mp ly wi th EC Di re ctives will vary depending on the configuration, wi ring, and oth er conditio ns of
the equipment or control pan el on which the OMRON devices are installed.
The customer must, therefore, perform the fina l check to conf ir m th at devices
and the overall machine conform to EMC standards.
The MULTIPLE I/O T ERMINAL pr oducts that com ply with EC Di rect ives must
be installed as follows:
1,2,3... 1. MULTIPLE I/O TERMINAL products are designed for installation inside
control panels. All MULTIPLE I/O TERMINAL products must be i nstalled
within control panels.
2. Used reinforced insulation or d ouble in sulation for the DC power suppli es
used for the communications power supp ly, internal circuit power supply,
and the I/O power supplies.
3. MULTIPLE I/O TERMINAL products that meet EC Directives also meet the
Common Emission Standard (EN50081-2). However, radiated emission
(at 10 m) will vary with the overall configuration of the contro l pan el, other
devices connected to the contr ol panel, and other conditions. You must
theref ore con firm that E C Directiv es are sati sfied f or t he ov era ll machi ne or
device.
4. MULTIPLE I/O TERMINAL pr oducts that meet EC Direc tives have configurations with less than 30 m of I/O wiring, and less than 10 m of power supply wiring.
The following examples show means of reducing noise.
1,2,3... 1. Noise from the communications cable can be reduced by installing a ferrite
core on the communications ca ble within 10 cm of the DeviceNet Master
Unit.
2. Wire the control panel with cables as thick and short as possible and
ground to 100
Ω min.
Ferrite Core (Data Line Filter): LF130B (Manufactured by Easy Magnet Co.)
Impedance specifications
25 MHZ: 105 Ω
100 MHZ: 190 Ω
30 mm
13 mm
31.5 mm
32 mm
xvi
EC Directives 6
3. Keep DeviceNet communications cables as shor t as possi ble and ground
to 100
Ω min.
1
SECTION 1
MULTIPLE I/O TERMINAL
This section provides an overview of the MULTIPLE I/O TERMINAL, including its features and functions.
1-1 MULTIPLE I/O TERMINAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-2 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-1-3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-1-4 Communications Units and I/O Units . . . . . . . . . . . . . . . . . . . . . . . 4
1-1-5 List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1-2 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-2-1 I/O Unit Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-2-2 Exchanging Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-2-3 Allocating I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1-2-4 I/O Unit Interface Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1-2-5 I/O Configuration Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2
MULTIPLE I/O TERMINAL Section 1-1
1-1 MULTIPLE I/O TERMINAL
1-1-1 Overview
A MULTIPLE I/O TERMINAL is a building-block DeviceNet Slave that consists
of a Communications Unit tha t interfaces one o r more I/O Uni ts. The I/O Unit
interface supports up to 8 I/O Units and a total of up to 1,024 I/O poi nts. I/O
Units are connected using s imple sna p-on conn ections via I/O Unit Con necting Cables. Allocation and address se ttings on the I/O Unit interface are not
required, enabling simple, flexible distributed I/O control.
1-1-2 Sy stem Configuration
DeviceNet Master Unit
DeviceNet Network
I/O Unit Connecting Cable
Communications
Unit
I/O Units
I/O Unit interface
Maximum of 8 Units; total length: 3 m, 1 m max. between Units
Total number of points (inputs + outputs): 1,024 points
The total number of points must be within the maximum number
supported by the Master.
Example: With C200HW-DRM21-V1 Master, 512 inputs/512 outputs
3
MULTIPLE I/O TERMINAL Section 1-1
1-1-3 Features
Simple Connections The Communications Unit and the I/O Units ar e separate, and the Communi-
cations Unit and the I/O Units ar e connec ted by an I/O U nit in terface. I/O can
be expanded simply by connecting additional I/O Units to the I/O Unit interface.
Automatic Recognition of
I/O Units
When the power to the Communications Uni t is tur ne d ON, the models of the
I/O Units on the I/O Unit interface are aut oma tic ally re co gni zed, and t he number of remote I/O communication s points with the DeviceNet Master Unit is
automatically determined. This enables I/O to be increased or decreased simply by connecting or disconnecting I/O Units.
Status Notification Status information about the I/O Unit i nterface can be tran sm itt ed as inp uts to
the DeviceNet Master Unit (two words).
Many Types of I/O Unit The following I/O Units are available.
• 16- or 32-point Transistor Input Units (terminal block, connector, 25-pin Dsub connector, or high-density connector)
• 16- or 32- point Transist or Output Units (ter minal block, connector, 25-pin
D-sub connector, or high-density connector)
• 8-point/16-point Relay Output Unit (16-point Unit)
• 4- or 8-point Analog Input Unit (terminal block or connector)
• 4-point Analog Output Unit (terminal block or connector)
• 1-point Pulse Input Unit (high-speed counter)
• 4-point Temperature Input Unit
An I/O-intensive System
Can be Built at Low Cost
Compared with fixed I/O Terminals, a high cost-performance ratio can be
achieved if I/O Units are used.
Range Setting by
Configurator
The input and out put ranges for the Analog Input, Analog Output, an d Temperature Input Units can be set for each point using the Configurator (with version 1.11 or later). Usin g DIP switches, ranges can be set in 2- point units for
the Analog Input and Analog Output Units, and in 4-point units for the Temperature Input Unit.
4
MULTIPLE I/O TERMINAL Section 1-1
1-1-4 Communications Units and I/O Units
Communications Unit The Communications Unit interfaces the I/O Units to the DeviceNet.
• It controls the I/O Units in response to I/O refresh requests from the
DeviceNet Master.
• It automa tic ally rec ogni zes th e co nfi guratio n of the I/O Units when the I/O
Unit interface is initialized.
• It noti fies the con nection stat us or the s tatus informa tion for the I/O Units
to the DeviceNet Master Unit.
• It provides a DIP switch to set the node number and baud rate of the
MULTIPLE I/O TERMINAL as a DeviceNet Slave.
I/O Units There are various I/O Units that can be connected to the I/O Unit interface.
• I/O Units are connected to the Communications Unit using an I/O Unit
Connecting Cable (included with th e I/O Unit, a 1-m I/O Unit Connecting
Cable (GCN1-100) is also available).
• No address or baud rate settings are required.
• The connection order of I/O Units is flexible.
I/O Unit interface
Output area
(Master → Communications Unit)
Input area
(Communications
Unit → Master)
0
Example:
Outputs
DeviceNet Master Unit
DeviceNet Network
0
1
Status
2
1
Example:
Outputs
2
Example:
Inputs
Units with Connectors
Transistor Input Unit
Transistor Output Unit
Relay Output Unit
End connector
I/O Unit Connecting Cables
Included with Unit: 40 mm
GCN1-100: 1 m (sold separately)
Units with Terminal Blocks
Transistor Input Unit
Transistor Output Unit
Units with High-density
Connectors
Transistor Input Unit
Transistor Output Unit
Analog Input Unit
Analog Output Unit
Communications Unit
5
MULTIPLE I/O TERMINAL Section 1-1
1-1-5 List of Models
Unit I/O
points
Words allocated
in PC memory
I/O
connections
Unit
power
supply
voltage
Installa-
tion
Model number Remarks
Input Output
Communications Unit None Status
two
words
0 words None 24 VDC
(supplied
from outside)
DIN track DRT1-COM ---
Basic I/O
Units
Transistor
Input Units
16
inputs
1 word 0 words M3 terminal
block
GT1-ID16
GT1-ID16-1
NPN
PNP
16
inputs
1 word 0 words Connectors
(made by
MOLEX)
GT1-ID16MX
GT1-ID16MX-1
NPN
PNP
16
inputs
1 word 0 words Connectors
(made by
FUJITSU)
GT1-ID16ML
(See note 2.)
GT1-ID16ML-1
(See note 2.)
NPN
PNP
16
inputs
1 word 0 words Connectors
(25-pin Dsub connectors)
GT1-ID16DS
(See note 2.)
GT1-ID16DS-1
(See note 2.)
NPN
PNP
32
inputs
2 words 0 words High-density
connector
(made by
FUJITSU)
GT1-ID32ML
GT1-ID32ML-1
NPN
PNP
Transistor
Output
Units
16 outputs
0 words 1 word M3 terminal
block
GT1-OD16
GT1-OD16-1
NPN
PNP
16 outputs
0 words 1 word Connectors
(made by
MOLEX)
GT1-OD16MX
GT1-OD16MX-1
NPN
PNP
16 outputs
0 words 1 word Connectors
(made by
FUJITSU)
GT1-OD16ML
(See note 2.)
GT1-OD16ML-1
(See note 2.)
NPN
PNP
16 outputs
0 words 1 word Connectors
(25-pin Dsub connectors)
GT1-OD16DS
(See note 2.)
GT1-OD16DS-1
(See note 2.)
NPN
PNP
32 outputs
0 words 2 words High-density
connector
(made by
FUJITSU)
GT1-OD32ML
GT1-OD32ML-1
NPN
PNP
Relay Ou t put Units
8 outputs
0 words 1 word M3 terminal
block
GT1-ROP08 ---
16 outputs
0 words 1 word M3 terminal
block
GT1-ROS16 ---
6
MULTIPLE I/O TERMINAL Section 1-1
Note The front-panel indic ators and o ther par ts of Analo g Input Uni ts, Analog Out-
put Units, Temperature Input Units, and Counter Units differ from those of
other I/O Units. These Units belong to a group called Special I/O Units.
An end connector is attache d to the Communications Unit, and a 40-mm I/O
Unit Connecting Cable is included with each I/O Unit. A 1-m I/O Unit Connecting Cable (GCN1-100) is also available.
Special I/
O Units
(See
note.)
Analog
Input Units
4 inputs 4 words 0 word M3 terminal
block
24 VDC
(supplied
from outside)
DIN track GT1-AD04
(See note 2.)
Inputs:
4 to
20 mA, 0
to 20 mA,
0 to 5 V,
1 to 5 V,
0 to 10 V,
–10 to
10 V
8 inputs 8 words 0 word Connectors
(made by
MOLEX)
GT1-AD08MX
Analog
Output
Units
4 outputs
0 words 4 words M3 terminal
block
GT1-DA04
(See note 2.)
Outputs:
4 to
20 mA,
0 to 5 V,
1 to 5 V,
0 to 10 V,
–10 to
10 V
4 outputs
0 words 4 words Connectors
(made by
MOLEX)
GT1-DA04MX Outputs:
0 to 5 V,
1 to 5 V,
0 to 10 V,
–10 to
10 V
Temperature Input
Units
4 inputs 4 words
(8 words
depending on
mode)
0 words M3 terminal
block
GT1-TS04T Inputs:
R, S, K, J,
T, B, L
GT1-TS04P Inputs:
Pt100,
JPt100
Counter
Unit
1 input 3 words 3 words M3 terminal
block
GT1-CT01 1 external
input
2 external
outputs
Unit I/O
points
Words allocated
in PC memory
I/O
connections
Unit
power
supply
voltage
Installa-
tion
Model number Remarks
Input Output
1 m
7
MULTIPLE I/O TERMINAL Section 1-1
Applicable Connectors The applicable connectors are shown in the following table.
Note Refer to page 219, High-de ns ity Conn ec tor Cables for MULTIP LE I/ O TERMI-
NALs for details.
Connector Model number Remarks
Connectors made
by MOLEX
Pressurewelded
Housing 52109-0390 For AWG#24
Crimp Housing 51030-0330
(See note.)
Reeled contacts
50083-8014 For AWG#24 to 30
50084-8014 For AWG#22 to 24
Loose contacts
50083-8114
(See note.)
For AWG#24 to 30
50084-8114 For AWG#22 to 24
Crimping tool 57036-5000 For AWG#22 to 26
57037-5000
(See note.)
For AWG#24 to 30
Connectors made
by
FUJITSU
corresponding to 16point connectors
Soldered FCN361J024-AU
Pressure-welded FCN367J024-AU/F
Crimp FCN363J024-AU
Recommended
connectors
corresponding to 25pin D-sub
connectors
Hood XW2S-2513 OMRON
Plug XW2A-2501 OMRON
Connectors made
by
FUJITSU
corresponding to highdensity
connectors
Soldered FCN361J040-AU
Pressure-welded FCN367J040-AU/F
Crimp FCN363J040-AU
8
Functions Section 1-2
1-2 Functions
1-2-1 I/O Unit Interface Specifications
Item Specification
Communications method Special protocol
Number of I/O Units 8 Units max.
Maximum number of points Total inputs/outputs: 1,024 points (bits)
Communications dis-
tance
Total length 3 m max.
Between Units 1 m max. (Cable included with Unit is
40 mm.)
Communications power supply Supplied from the Communi cations
Unit to the I/O Unit (0.4 A max.)
Relationship to DeviceNet After the I/O Unit interface is estab-
lished, Device Net co mm unica tions co ntinue normally, even if an error occurs
on the I/O Unit interface.
Addresses Automatically rec ogn ized when the
power to the Communica tions Unit is
turned ON.
I/O configuration Automaticall y recogn ized when the
power to the Communica tions Unit is
turned ON. If the configuration is
changed while the pow er sup ply is ON,
a configuration error will occur.
Self-diagnostic functions
Configuration errors The I/O Unit configuration is constantly
checked while power is supplied. If a
mismatch occurs while the power is
turned ON, I/O refreshing for all I/O
Units is stopped.
Special I/O Unit
errors
Errors are detected in the Special I/O
Units (Analog Input Units, Analog Output Units, Temperature Input Units, and
Counter Units) on the I/O Unit interf ace .
I/O Unit interface
errors
Communications sto p w h en there is no
communications response from an I/O
Unit.
Communications sto p w h en there is no
specific response from the la st I/O U nit
(terminator).
Communications stop when nine or
more I/O Units are connected.
Power supply overload to I/O Units
The power supply to the I/O Units and I/
O refreshing for all I/O Units are
stopped when the power supply to the
I/O Units through the Communications
Unit exceeds 0.4 A.
Error detection Frame error check; CRC-CCITT check
9
Functions Section 1-2
I/O Interface Current
Consumption
Make sure that the power supply from t he Communications Unit to the I/O
Units is less than the total rated output curre nt (400 mA). The I/O inter face
current consumption for each I/O Unit is shown in the following table.
Calculation Example
When five GT1-ID32ML Input U nits and three GT1-OD16 Output Units are
used, the total current consumption is calculated as follows:
(GT1-ID32ML current consumption) x 5 Units
+ (GT1-OD16 current consumption) x 3 Units
= 55 mA x 5 + 35 mA x 3 = 380 mA
≤ 400 mA
I/O Unit Interface
Addresses
The addresses of the I/O Unit s on the I/O Uni t interface are automati cally set
when the Communications Unit is started. The addres ses are from 0 to 7 in
ascending order from the I/O Units closest to the Communications Unit.
Checking the I/O Unit
Interface Status
The following two methods are used to check the I/O Unit interface status:
• Checking the Communications Unit and I/O Unit indicators
• Checking the status of the Communications Unit
I/O Unit I/O interface current consumption
GT1-ID16(-1) 35 mA max.
GT1-ID16MX(-1) 35 mA max.
GT1-ID16ML(-1) 35 mA max.
GT1-ID16DS(-1) 35 mA max.
GT1-ID32ML(-1) 55 mA max.
GT1-OD16(-1) 35 mA max.
GT1-OD16MX(-1 ) 35 mA max.
GT1-OD16ML(-1) 35 mA max.
GT1-OD16DS(-1) 35 mA max.
GT1-OD32ML(-1) 65 mA max.
GT1-ROP08 40 mA max.
GT1-ROS16 50 mA max.
GT1-AD04 50 mA max.
GT1-AD08MX 50 mA max.
GT1-DA04 50 mA max.
GT1-DA04MX 50 mA max.
GT1-TS04T 50 mA max.
GT1-TS04P 50 mA max.
GT1-CT01 90 mA max.
I/O Unit interface
DeviceNet Master Unit
DeviceNet Network
Communications Unit
I/O Unit I/O Unit I/O Unit
10
Functions Section 1-2
Indicators
For details, refer to page 199, Troubleshooting via Indicators.
Checking the I/O Unit Interface Status
The first two words of the CPU Unit alloc atio n in put are a are al ways allocated
to the status of the I/O Unit interface via the DeviceNet.
1-2-2 Exchanging Data
Initialization When the Communications Unit is started, it automatically recognizes the
configuration of the I/O Units and registers thi s status as the nor mal co nfiguration (in RAM memor y). At the same time, addres ses 0 to 7 ar e alloca ted to
the I/O Units in ascending order from the I/O Unit c losest to the Communications Unit. The se pr oc es se s are performed each time th e p o w e r i s t urned ON .
Unit Normal Error
Communications
Unit
TS Indicator:
Lit green
TS indicator
I/O Unit interface error: Lit red
Special I/O Unit error: Flashing green
Maximum power supply
overload to I/O Units: Not lit
I/O Units TS indicator:
Lit green
U.ERR indica-
tor: Not lit
PWR indicator:
Lit green
TS indicator
I/O Unit interface error: Lit red
U.ERR indicator
Special I/O Unit error: Lit red
PWR indicator
No internal power supply: Not lit
DeviceNet
Network
Communications Unit
I/O Unit I/O Unit
TS indicator
Output
area
Input
area
Status, two words
I/O Unit connection information
Error slaves Registered slaves
For details, see page 15.
DeviceNet Master Unit
DeviceNet Network
Communications Unit
I/O Unit I/O Unit
0 wd
+1 wd
11
Functions Section 1-2
Remote I/O communications with the DeviceNet Master Unit ar e carried out
by a MULTIPLE I/O TERMINAL base d on the registered co nfiguration. When
the power to the Communications Unit is turned ON, the bits allocated to the I/
O Units can be used to check the status (bits 0 to 7 of the first word) of the
Communications Unit.
Note 1. If the configuration of the I/O Units is to be changed, a number of prec au-
tions must be noted. For details, see 1-2-5 I/O Configuration Changes.
2. For details of data exchange timing, see 6-1-1 I/O Response Time.
Error Processing Even if an error occurs in the I/O Unit interface after initialization is completed,
DeviceNet communications will continue normally. Therefore, an error processing program section must be included in the CPU Unit to check the status
of the Communications Unit for errors that have occurred and to ide ntify the
error type and location.
1-2-3 Allocating I/O
This section explains how words for a MULTIPLE I/O TERMINAL are allocated in the output area and input area of the Master. For details of remote I/O
functions in the output area and input area of the Master such as word specification, fixed allocation, and us er-set al loca tion, r efer to the DeviceNet Opera-
tion Manual (W267).
Fixed Allocation The output area and inpu t area corresponding to the Communicatio ns Unit
node number for a MULTIPLE I/O TERMINAL are as shown in the following
diagram.
Output Area
The output area contains output bits in the order tha t I/O Units are co nnecte d
on the I/O Unit interface.
Input Area
The input area contains the Communications Unit status (two words), and
input bits in the order that I/O Units are connected on the I/O Unit interface.
The input and output bits for the I/O Unit interface are allocated in the
DeviceNet input and output are as in 16-poin t (one word) inc rements. With 8point I/O Units, these bits are alloc ated using the r ightmost byte (bits 0 to 7) ,
and the leftmost byte (bits 8 to 15) will be 00 Hex.
At startup
Automatically recognizes the configuration of the
I/O Units
Communications with the DeviceNet Master Unit
based on this I/O configuration
DeviceNet Network
Communications Unit
I/O Unit I/O Unit I/O Unit
Area corresponding to
Communications Unit
node number
Output bits on
the I/O Unit
interface
I/O Unit interface
status
Input bits on the I/O
Unit interface
Output area Input area
12
Functions Section 1-2
Example: CVM1/CV Series
Example: C200HX/HG/HE
Communications Unit
node number 02
I/O Unit
addresses
Communications Unit
node number
8 output bits for
Unit #1
16 input bits for Unit #0
The unused words can be used as work bits.
Unused
DeviceNet Network
I/O Unit interface status
for node number 02
Output area Input area
#0
16 inputs#18 outputs#216 inputs
16 input bits for Unit #2
Unused
Unused
CIO 1902
CIO 1903
CIO 1904
CIO 1905
CIO 1906
CIO 1907
CIO 1908
CIO 1909
CIO 1910
CIO 2002
CIO 2003
CIO 2004
CIO 2005
CIO 2006
CIO 2007
CIO 2008
CIO 2009
CIO 2010
Communications Unit
node number 06
#0
16 inputs
#2
16 outputs
#1
4-point
Analog
Output
Unit
16 input bits for Unit #0
I/O Unit interface status
for node number 06
Unused
Unused
Area allocated to
Communications Unit
for node number 02
Area allocated to
Communications Unit
for node number 06
4 analog
outputs for
Unit #1
16 output bits for Unit #2
00 Hex
#1
4-point
Analog
Output Unit
4 analog outputs
for Unit #1
Communications Unit
node number 05
I/O Unit
addresses
Communications Unit
node number
32 output bits for
Unit #0
16 input bits for Unit #2
2. The unused words (not between I/O areas that are used) can be used as work bits.
DeviceNet Network
I/O Unit interface status
for node number 05
Output area Input area
#0
32 outputs
#3
16 inputs
#2
16 inputs
16 input bits for Unit #3
Unused
Unused
CIO 55
CIO 56
CIO 57
CIO 58
CIO 59
CIO 60
CIO 61
CIO 62
CIO 63
CIO 64
CIO 65
CIO 66
CIO 355
CIO 356
CIO 357
CIO 358
CIO 359
CIO 360
CIO 361
CIO 362
CIO 363
CIO 364
CIO 365
CIO 366
Communications Unit
node number 12
#0
16 inputs#14-point
Analog
Output Unit
#2
32 outputs
Unused
4 analog outputs
for Unit #1
16 output bits for Unit #2
Unused
I/O Unit interface status
for node number 12
16 input bits for Unit #0
Unused
Unused
Area allocated to
Communications Unit
for node number 05
Area allocated to
Communications Unit
for node number 12
(See note 1.)
(See note 2.)
(See
note 1.)
Note 1. The unused words between I/O areas that are used cannot be used as work bits.
13
Functions Section 1-2
User-set Allocation The Configurator can be used to set the Communi cations Unit node number,
first word, and number of bytes to alloc ate (allocation size) for input block 1
and 2 and for output block 1 and 2, as shown in the following diagram.
Output block 1 or 2: Output bits in the order I/O Units are connected on
the I/O Unit interface
Input block 1 or 2: I/O Unit interface status (two words), and input bits in
the order I/O Units are connected on the I/O Unit
interface
Example: CVM1/CV Series
Output block 1 or 2
First word
Output bits on the
I/O Unit interface
I/O Unit interface
status
Input block 1 or 2
Input bits on the
I/O Unit interface
First word
Allocation size
Allocation size
Output block 2
Communications Unit
node number 02
I/O Unit
addresses
16 input bits for Unit #0
DeviceNet Network
I/O Unit interface status
for node number 06
#0
16 inputs
# 2
16 inputs
#1
8 outputs
16 input bits for Unit #2
Input block 1
8output bits for
Unit #1
First word
of node
number 02
First word
of node
number 06
Size of node
number 02
Size of node
number 06
00 Hex
CIO 1950
CIO 1951
CIO 1952
CIO 1953
CIO 1954
CIO 1955
CIO 1956
CIO 1957
CIO 1958
CIO 1900
CIO 1901
CIO 1902
CIO 1903
CIO 1904
CIO 1905
CIO 1906
CIO 1907
Communications Unit
node number 06
#0
16 inputs
#2
16 outputs
#1
4-point
Analog
Output Unit
First word
of node
number 06
4 analog outputs
for Unit #1
16 input bits for Unit #2
Size of node
number 06
First word
of node
number 02
16 input bits for Unit #0
I/O Unit interface status
for node number 02
Size of node
number 02
Allocation settings for node number 02
First word: CIO 1952
Allocation size: 2 bytes (1 word)
Allocation settings for node number 06
First word: CIO 1954
Allocation size: 10 bytes (5 words)
Allocation settings for node number 02
First word: CIO 1904
Allocation size: 8 bytes (4 words)
Allocation settings for node number 06
First word: CIO 1901
Allocation size: 6 bytes (3 words)
14
Functions Section 1-2
Example: C200HX/HG/HE Series
Output block 1
Communications Unit
node number 05
I/O Unit
addresses
16 input bits for Unit #2
DeviceNet Network
I/O Unit interface status
for node number 05
#0
32 outputs
# 3
16 inputs
#2
16 outputs
16 input bits for Unit #3
Input block 1
Size of node
number 05
Size of node
number 05
CIO 50
CIO 51
CIO 52
CIO 53
CIO 54
CIO 55
CIO 360
CIO 361
CIO 362
CIO 362
CIO 363
CIO 364
CIO 365
Communications Unit
node number 12
#1
4-point
Analog
Output Unit
#0
16 outputs
#2
16 outputs
#1
4-point
Analog
Output Unit
CIO 120
CIO 121
CIO 122
CIO 123
CIO 124
32 output bits for
Unit #0
4 analog outputs
for Unit #1
Output block 2
4 analog outputs
for Unit #1
16 output bits for Unit #2
Allocation settings for node number 05
First word: CIO 50
Allocation size: 12 bytes (6 words)
Allocation settings for node number 12
First word: CIO 120
Allocation size: 10 bytes (5 words)
Allocation settings for node number 05
First word: CIO 360
Allocation size: 3 bytes (4 words)
Allocation settings for node number 12
First word: CIO 363
Allocation size: 8 bytes (3 words)
Size of node
number 12
I/O Unit interface status
for node number 12
16 input bits for Unit #0
Size of node
number 12
First word
of node
number 05
First word
of node
number 12
First word
of node
number 05
First word
of node
number 12
15
Functions Section 1-2
Allocation Precautions Note the following precautions when starting the DeviceNet Network.
Limits on the Total Number of Input and Output Points for a Master Unit
A maximum of 1,024 input s and outpu ts can be c ontrolled by one Com munications Unit (DRT1-COM). The number of I/O points for each node, however,
depends on the Master Unit. For example, with the CV-series Master Unit
(CVM1-DRM21-V1) or the C200HX/HG/HE and C200HS Master Unit
(C200HW-DRM21-V1), up to 512 inputs and up to 512 outputs can be used at
each node. Therefore, connect I/O Uni ts within a range that does not exceed
the number of I/O points for each Master Unit node. The following table shows
the I/O size of each Unit.
The GT1-ROP08 (Relay Output Unit with Power Relay) has 8 actual outputs
but, as a MULTIPL E I/O TERMINAL, the number of outputs allocated to the
Master Unit is 16.
Calculation Example
When one GT1-DA04MX Analog Output Unit and three GT1-AD08 Analog
Input Units are used, th e tot al number of inp ut p oin ts and outp ut points is calculated as follows:
Total Number of Input Points:
Communications Unit (Status) + Analog Input Units x 3
= 32 points + 128 points x 3 = 416 points
Total Number of Output Points:
Analog Output Units x 1
= 64 points
Reference
For information on dealing with oth er problems c oncerning the MULTIPLE I/O
TERMINAL, refer to SECTION 7 Troubleshooting and Maintenance. For info rmation on problems concer ning the DeviceNet, refer to DeviceNet Operation
Manual (W267).
1-2-4 I/O Unit Interface Status
The following I/O Unit interface status is maintained in the CPU Unit.
• I/O Unit connection information (I/O Unit interface status)
• Registered I/O Unit addresses
Unit model Number of
inputs
Number of
outputs
DRT1-COM 32 points 0 point
GT1-ID16(-1), GT1-ID16MX(-1), GT1-ID16ML(-1)*,
GT1-ID16DS(-1)*
16 points 0 point
GT1-OD16(-1), GT1-OD16MX(-1), GT1-OD16ML(-1)*,
GT1-OD16DS(-1)*, GT1-ROS16, GT1-ROP08
0 points 16 points
GT1-ID32ML(-1) 32 points 0 point
GT1-OD32ML(-1) 0 points 32 points
GT1-AD04* 64 points 0 points
GT1-AD08MX (With 8-input mode) 128 points 0 points
GT1-AD08MX (With 4-input mode) 64 points 0 points
GT1-DA04*, GT1-DA04MX 0 points 64 points
GT1-TS04T, GT1-TS04P (With Normal Mode) 64 points 0 points
GT1-TS04T, GT1-TS04P (With 2-decimal-place Mode) 128 points 0 points
GT1-CT01 48 points 48 points
16
Functions Section 1-2
• Error I/O Unit addresses
As shown in the following diagram, the status consists of two words. The first
two words of the Communicati ons Unit allocati on input are a in the CPU Uni t
are allocated for this status. Include a program section in the CPU Unit to
check this status and perform error processing.
I/O Unit Connection Information
I/O Unit connection information
Error I/O Unit addresses Registered I/O Unit addresses
0 wd
+1 wd
1: Error (OR of bits 0 to 4)
1: Refreshing I/O
1: Special I/O Unit Error
1: Configuration Error
1: I/O Unit Interface Error
1: I/O Unit Power Supply Overload
1: High-density I/O Unit Error
0 wd
Bit
Bit Flag name Meaning Content
15 Refreshing I/O Refreshing I/O 1: Communications between the
Communications Unit and I/O Units
is normal.
0: Communications error (no
response is received from an I/O
Unit)
14 Error OR of bits 0 to 4 1: Any one of bits 0 to 4 is ON
0: Bits 0 to 4 are all OFF
4 High-density
I/O Unit Error
A high-density I/O Un it error w as
detected.
1: Unit error
0: Unit normal
3 I/O Unit Pow er
Supply Overload
An overcurrent to an I/O Unit
was detected.
1: Overcurrent detected
0: Normal
2 I/O Unit Inter-
face Error
An I/O Unit interface error was
detected.
Data Transfer Error:
In the I/O Unit interfa ce , there
was no response to a command after the fixed time has
elapsed. Alternatively, the
response expected to be
returned from the end I/O Unit
(terminator) was not received.
Too many I/O Units:
Nine or more I/O Units are
connected.
1: I/O Unit interface error
0: Normal
1 Configuration
Error
The I/O configuration was
changed when the Communications Unit was started.
1: I/O configuration change during
startup
0: No I/O configuration change during
startup
0 Special I/O
Unit Error
An error occurred in a Special
I/O Unit.
1: Special I/O U nit error
0: Special I/O Unit normal
17
Functions Section 1-2
Abnormal I/O Unit Addresses and Registered I/O Unit Addresses
1-2-5 I/O Configuration Changes
The I/O Unit interface automatically recognizes the I/O Unit configuration each
time the Communications Unit is started up, and stores this as th e normal
configuration.
Note 1. If the I/O Unit configuration is c hanged wh ile the Communications Unit is
turned ON, a configuration error will occur. Do not change the I/O Unit configuration while power is being supplied to the Communications Unit.
2. If a configuration error occurs on the I/O Unit interface, I/O refreshing of all
I/O Units will stop. Even if a configuration err or occurs, communications
with the DeviceNet Network will continue, using the initial I/O Unit configuration. An error processing p ro gram se cti on must therefore be included in
the CPU Unit to regular ly check whether or not a configuratio n error has
occurred (status bit 1) and to process abnormal I/O Unit addresses.
If the I/O Unit configuration is changed, perform the following operations,
according to the DeviceNet area al location method. For details about I/O all ocation, refer to DeviceNet Operation Manual (W267).
Default Allocations Because the allocation size of the Communications Unit changes together
with changes to the I /O Unit configuration, a verification er ror will occur on
DeviceNet if the scan list is enabled, as follows:
• Master Unit 7-segment display will show d6, Slave I/O size mismatch.
• Master status bits 14 and 7 will turn ON.
Perform the following operations, according to the s tatus of the input/output
areas.
Allocation Areas Do Not Overlap with Other Slaves
Remote I/O communication s will be performed unchanged with th e new configurat io n. Che ck the Ve rif ic at i o n Err or Bit and, if required, pe rform processing
to disable the allocated words in the CPU Unit. Also check the number of
points for the changed I/O Unit and its allocation area on the I/O Unit interface, and re-register the scan list (first set the Scan List Enable software
switch to OFF, and then set it to ON after checking the I/O size).
Allocation Areas Overlap with Other Slaves
In this case, I/O area duplication will also occur on the DeviceNet, as follows:
• Master Unit 7-segment display will show d0, I/O area duplication.
• Master status bits 14 and 4 will turn ON.
Check the Verification Error Bit, and perfor m processing to disable the allocated words in the CPU Unit. Also ch ang e the Slave node number so t hat th e
allocation area does n ot overlap with any other, and re-register the sca n list
(first set the Scan Lis t Enable software switch to OFF, and then set it to ON
after checking the I/O size).
Note If the scan list is disabled, there will be no changes made in the DeviceNet
Master Unit, even if the Communications Unit input/output sizes ch ange. Be
sure to use the Scan List Enable Mode for normal operations.
The bits corresponding
to I/O Unit with errors
are turned ON. Bits 8 to
15 correspond to
addresses 0 to 7.
1: Error
0: No error, or not
part of network
The bits corresponding
to registered I/O Units
are turned ON. Bits 0 to
7 correspond to
addresses 0 to 7.
1: Registered
0: Not registered
Bit
+1 wd
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