Omron C200H-RM201 User guide

[phone] | [email protected] | artisantg.com
-~
ARTISAN
®
~I
TECHNOLOGY
GROUP
Your definitive source
for
quality
pre-owned
equipment.
Artisan Technology
Group
Full-service,
independent
repair
center
with
experienced
engineers
and
technicians
on staff.
We
buy
your
excess,
underutilized,
and
idle
equipment
along
with
credit
for
buybacks
and
trade-ins
.
Custom
engineering
so
your
equipment
works
exactly as
you
specify.
•
Critical
and
expedited
services
•
Leasing
/
Rentals/
Demos
• In
stock/
Ready-to-ship
•
!TAR-certified
secure
asset
solutions
Expert
team
ITrust
guarantee
I
100%
satisfaction
All
tr
ademarks,
br
a
nd
names, a
nd
br
a
nd
s a
pp
earing here
in
are
th
e property of
th
e
ir
r
es
pecti
ve
ow
ner
s.
Find the OMRON C200H-RM201 at our website: Click HERE

Cat. No. W120-E1-7
Wired Remote I/O
SYSMAC
C-series Rack PCs
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Wired Remote I/O
System Manual
Revised May 2000
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

iv
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

!
!
!
v
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 “PC” means Programmable Controller and is not used as an abbreviation for any-
thing else.
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 ef ficient and convenient operation
of the product.
1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 1989
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permis-
sion of OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is
constantly 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 informa-
tion contained in this publication.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

vi
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

TABLE OF CONTENTS
vii
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 Remote I/O Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Wired Remote I/O Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1 Basic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 C200H Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 Combined Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Optical Connections in Wired Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5 Multilevel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
Data Exchange and Operations . . . . . . . . . . . . . . . . . . . .
3-1 Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Unit Numbers and I/O Word Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Setting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Delayed Activation of Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Unit Components and Switch Settings . . . . . . . . . . . . . . .
4-1 Masters and Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Remote Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Differentiating Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 I/O Block Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4 Mounting and Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5 Wiring .................................................................
SECTION 6
I/O Response Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 C500 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3 C1000H and C2000H Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4 C200H Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

TABLE OF CONTENTS
viii
SECTION 7
Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1 Self-Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2 Error Codes and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-3 Locating Transmission Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4 CONTINUE and STOP Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-5 Recovery in STOP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-6 I/O Table Creation Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-7 Slave Unit Numbers with Multiple Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
A Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C When Using CS1-series PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

ix
About this Manual:
This manual describes the means and Units necessary to construct a Wired Remote I/O System con-
sisting of at least one Remote I/O Master Unit and one or more Remote I/O Slave Units or Remote
Terminals. (The term “Wired” refers to the links used to create the Remote I/O System, e.g., that be-
tween a Remote I/O Master Unit and a Remote I/O Slave Unit.) Remote I/O Systems reduce wiring
requirements for remote control from a PC by performing distributed control actions through execution
of a program in the memory of a single PC’s CPU. The 3G2A5-RM201 Remote I/O Master Unit can
be used with any C-series Rack PC except the C200H PC. The C200H-RM201 Remote I/O Master
Unit is used with a C200H PC. Remote I/O Slave Units, though generally used with the corresponding
Remote I/O Master Unit, can be used in “combined” system configurations.
This manual has been prepared to explain how to incorporate Wired Remote I/O Systems into C120,
C500, C200H, C1000H, and C2000H PC Systems. It provides the necessary information, such as
system configuration, settings, and I/O word allocation, for connecting Remote I/O Master Units, Re-
mote I/O Slave Units, and I/O Units.
Before attempting to set up and operate your Remote I/O System, familiarize yourself with all relevant
parts of this manual. For more detailed descriptions of manual content, refer to the introductions for
individual sections.
Section 1 introduces Wired I/O Systems and describes their characteristics.
Section 2 describes some of the many possible system configurations and the limitations of each
type of system.
Section 3 provides names and descriptions of basic functions, internal circuits, and methods for dif-
ferentiating differentiating unit types. Settings required to operate the system and successfully com-
municate program actions are explained, and example system settings are provided.
Section 4 provides details on Wired Remote I/O Systems, and the main Units used to build these
Systems, included within these are mounting restrictions and wiring considerations of the systems.
Parts of the Units, switch setting, and examples of switch settings are provided.
Section 5 explains how to install Wired I/O Systems and includes information on dimensions, differ-
ences between Units, and wiring.
Section 6 offers details on response time computations.
Section 7 describes error indications and error processing. Both indicator lights and dedicated error-
related flags are provided.
Appendix A provides a list of the basic specifications and complete model numbers of products used
in Wired I/O Systems.
Appendix B provides technical specifications.
Appendix C provides information on using CS1-series PCs.
WARNING Failure to read and understand the information provided in this manual may result in
personal 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.
!
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

xi
PRECAUTIONS
This section provides general precautions for using the Wired Remote I/O System and related devices.
The information contained in this section is important for the safe and r eliable application of the W ir ed Remote I/O
System. Y ou must r ead this section and understand the information contained befor e attempting to set up or operate
the Wired Remote I/O System.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

!
!
!
!
!
!
!
3Safety Precautions
xii
1 Intended Audience
This manual is intended for the following personnel, who must also have knowl -
edge of electrical systems (an electrical engineer or the equivalent).
•Personnel in charge of installing FA systems.
•Personnel in charge of designing FA systems.
•Personnel in charge of managing FA systems and facilities.
2 General Precautions
The user must operate the product according to the performance specifications
described in the relevant 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, amusement ma-
chines, safety equipment, and other systems, machines, and equipment that
may
have a serious influence on lives and property if used improperly , consult
your OMRON representative.
Make sure that the ratings and performance characteristics of the product are
sufficient for the systems, machines, and equipment, and be sure to provide the
systems, machines, and equipment with double safety mechanisms.
This manual provides information for programming and operating the System.
Be sure to read this manual before attempting to use the System and keep this
manual close at hand for reference during operation.
WARNING It is extremely important that the Wired Remote I/O System be used for the
specified
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 the Wired Remote I/O System to the
above-mentioned applications.
3 Safety Precautions
WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing so
may result in electric shock.
WARNING Do not touch any of the terminals or terminal blocks while the power is being
supplied. Doing so may result in electric shock.
Caution Tighten the screws on the terminal block of the AC Power Supply Unit to the
torque specified in the operation manual. The loose screws may result in burning
or malfunction.
Caution Execute online edit only after confirming that no adverse ef fects will be caused
by extending the cycle time. Otherwise, the input signals may not be readable.
WARNING Do not attempt to disassemble, repair , or modify any Units. Any attempt to do so
may result in malfunction, fire, or electric shock.
WARNING Provide safety measures in external circuits (i.e., not in the Programmable
Controller),
including the following items, in order to ensure safety in the system
if an abnormality occurs due to malfunction of the PC or another external factor
affecting the PC operation. Not doing so may result in serious accidents.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

!
!
!
!
5Application Precautions
xiii
•Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
•The PC will turn OFF all outputs when its self-diagnosis function detects any
error or when a severe failure alarm (F ALS) instruction is executed. As a coun -
termeasure for such errors, external safety measures must be provided to en -
sure safety in the system.
•The PC outputs may remain ON or OFF due to deposition or burning of the
output
relays or destruction of the output transistors. As a countermeasure for
such problems, external safety measures must be provided to ensure safety in
the system.
4 Operating Environment Precautions
Caution Do not operate the control system in the following locations:
•Locations subject to direct sunlight.
•Locations subject to temperatures or humidity outside the range specified in
the specifications.
•Locations subject to condensation as the result of severe changes in tempera -
ture.
•Locations subject to corrosive or flammable gases.
•Locations subject to dust (especially iron dust) or salts.
•Locations subject to exposure to water, oil, or chemicals.
•Locations subject to shock or vibration.
Caution Take appropriate and suf ficient 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 Wired Remote I/O System can have a large
effect on the longevity and reliability of the system. Improper operating environ -
ments
can lead to malfunction, failure, and other unforeseeable problems with
the 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 Wired Remote I/O System.
WARNING Always heed these precautions. Failure to abide by the following precautions
could lead to serious or possibly fatal injury.
•Always ground the system to 100 Ω or less when installing the Units. Not con -
necting to a ground of 100 Ωor less may result in electric shock.
•Always turn OFF the power supply to the PC before attempting any of the fol -
lowing. Not turning OFF the power supply may result in malfunction or electric
shock.
•Mounting or dismounting I/O Units, CPU Units, Memory Units, or any other
Units.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

!
5Application Precautions
xiv
•Assembling the Units.
•Setting DIP switches or rotary switches.
•Connecting cables or wiring the system.
•Connecting or disconnecting the connectors.
Caution Failure
to abide by the following precautions could lead to faulty operation of the
Wired Remote I/O System, or could damage the PC or PC Units. Always heed
these precautions.
•Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal lines,
momentary power interruptions, or other causes.
•Always use the power supply voltages specified in this manual. An incorrect
voltage may result in malfunction or burning.
•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.
•Install external breakers and take other safety measures against short-circuit -
ing in external wiring. Insuf ficient safety measures against short-circuiting may
result in burning.
•Do not apply voltages to the Input Units in excess of the rated input voltage.
Excess voltages may result in burning.
•Do not apply voltages or connect loads to the Output Units in excess of the
maximum switching capacity. Excess voltage or loads may result in burning.
•Disconnect
the functional ground terminal when performing withstand voltage
tests. Not disconnecting the functional ground terminal may result in burning.
•Be sure that all the mounting screws, terminal screws, and cable connector
screws are tightened to the torque specified in this manual. Incorrect tighten -
ing torque may result in malfunction.
•Leave the label attached to the Unit when wiring. Removing the label may re -
sult in malfunction if foreign matter enters the Unit.
•Remove
the label after the completion of wiring to ensure proper heat dissipa -
tion. Leaving the label attached may result in malfunction.
•Double-check all wiring and switch settings before turning ON the power sup -
ply. Incorrect wiring may result in burning.
•Mount Units only after checking terminal blocks and connectors completely.
•Be
sure that the terminal blocks, Memory Units, expansion cables, and other
items with locking devices are properly locked into place. Improper locking
may result in malfunction.
•Check the user program for proper execution before actually running it on the
Unit. Not checking the program may result in an unexpected operation.
•Confirm
that no adverse ef fect will occur in the system before attempting any of
the following. Not doing so may result in an unexpected operation.
•Changing the operating mode of the PC.
•Force-setting/force-resetting any bit in memory.
•Changing the present value of any word or any set value in memory.
•Resume
operation only after transferring to the new CPU Unit the contents of
the DM Area, HR Area, and other data required for resuming operation. Not
doing so may result in an unexpected operation.
•Do
not pull on the cables or bend the cables beyond their natural limit. Doing
either of these may break the cables.
•Do not place objects on top of the cables or other wiring lines. Doing so may
break the cables.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5Application Precautions
xv
•Use crimp terminals for wiring. Do not connect bare stranded wires directly to
terminals. Connection of bare stranded wires may result in burning.
•When replacing parts, be sure to confirm that the rating of a new part is correct.
Not doing so may result in malfunction or burning.
•Before touching a Unit, be sure to first touch a grounded metallic object in order
to discharge any static built-up. Not doing so may result in malfunction or dam -
age.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

1
SECTION 1
Introduction
This section introduces W ired I/O Systems and describes their characteristics.
1-1 Remote I/O Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Wired Remote I/O Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

2
Remote I/O Systems Section 1-1
1-1 Remote I/O Systems
Assembly lines are often extremely long, making it difficult if not impossible to
wire all I/O devices directly from CPU Racks or Expansion I/O Racks. A Re-
mote I/O System can be used to solve this problem. In a Remote I/O System,
a Rack can be located farther from the CPU Rack than is possible with Ex-
pansion I/O Racks connected directly to the CPU Rack.
By locating a Rack farther from the CPU Rack, a Remote I/O System elimi-
nates the time and mess in wiring (or changing wiring) to many devices that
are separated from the CPU Rack. Although all I/O points must ultimately be
wired individually, the question is one of distance: Do you want to wire doz-
ens of terminals all the way across a factory complex or do you want to run a
single cable for most of the distance and then wire individual terminals lo-
cally?
The following diagram illustrates how a simple Remote I/O System would be
set up. Slave Racks, described below, are controlled by the CPU Unit
through the Master. The dotted circles show the devices that would be con-
trolled through the Units on each Rack.
Processing
machine Processing machine
Processing
machine
Processing
machine
Sensor Sensor Sensor
CPU Rack
Master
Slave Rack
Slave
Slave Rack
Slave
Assembly line
Wiring distance could also be reduced by placing an independent CPU Rack
near every location that required control, but in doing so, each PC would
have to be programmed independently and the activities of all the PC pro-
grams would need to be coordinated, a very difficult job. Here too, a Remote
I/O System simplifies the task by allowing a single CPU Unit, and thus a sin-
gle program, to integrate control of the entire process. A Remote I/O System
thus has these two advantages: Racks can be located a greater distance
from the CPU Rack and coordinating control actions is simplified because all
control is exerted by one program.
A third advantage of Remote I/O Systems is reduced noise interference. This
is the result of the single cable that replaces the otherwise numerous wires
that would be required all the way from the CPU and Expansion I/O Racks to
the I/O devices.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

3
Remote I/O Systems Section 1-1
A Remote I/O System directly involves only one PC and the program in it and
through it a large number of I/O points can be controlled a greater distance
from the PC. This is achieved by mounting a Remote I/O Master Unit to the
CPU Rack to control I/O points located possibly many kilometers away. Each
Master serves as a ‘switching point’ for controlling all of the I/O points ac-
cessed through it. These I/O points are accessed through the Master, not
controlled by it. All I/O control comes from the program in the CPU Unit.
More than one Master can be mounted to a single PC, with each Master
forming the starting point of a Remote I/O Subsystem, i.e., a Remote I/O
Subsystem includes one Master plus all of the Remote I/O Units controlled
through it.
The Remote I/O Units that can be included in each Subsystem depend on
the specifications of the Master. Masters are available either with optical or
wire specifications. Optical Remote I/O Systems transfer data through opti-
cal fiber cables to enable the greatest transmission distance and the great-
est resistance to electrical noise. Wired Remote I/O Systems use wire ca-
bles which don’t offer as great a distance as Optical Subsystems, but do
greatly reduce the burden of wiring remote I/O and afford greater resistance
to noise than independently wired I/O points. Both types of Master can be
mounted to the same PC to meet specific distance and noise-resistance re-
quirements.
Master
on Rack
Label printer
Remotely Controlled I/O Devices
Glue coater
PC
Optical and
Wired Masters
on Rack Auto welder
Conveyer Packing machine
Optical Subsystem
Wired Subsystem
Polisher
PC
All Remote I/O Systems consist of at least one Remote I/O Master Unit con-
nected in series to one or more Units accessed through it. One of these Units
that is common to most Remote I/O Systems is a Remote I/O Slave Unit.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

4
Wired Remote I/O Systems Section 1-2
A Master is mounted to the CPU Rack or an Expansion I/O Rack; a Slave is
mounted to a Backplane to form what is called a Slave Rack. To a Slave
Rack is mounted the same other Units as those mounted to the CPU or Ex-
pansion I/O Rack, with only a few exceptions (e.g., Link Units other than
Slaves cannot be mounted to Slave Racks). The advantage of a Slave Rack
is that it can be located a considerable distance from the CPU Rack with the
only connection required being a cable running from the Master to the Slave.
The actual distance a Slave Rack can be removed from the Master, as well
as the other Units used to configure a Remote I/O System, depends on the
type of Remote I/O System being used. Collectively, all of the Units con-
nected in a Remote I/O System are referred to as Remote I/O Units.
This manual describes Wired Remote I/O Systems. Optical Remote I/O Units
are described in the
Optical Remote I/O System Manual (W136).
1-2 Wired Remote I/O Systems
In a Wired Remote I/O System, the Master is connected to other Remote I/O
Units through wire cable. These Remote I/O Units include Wired Masters,
Wired Slaves, and Remote Terminals. Link Adapters can also be included in
the System to enable the use of optical cable links.
A basic Wired Remote I/O System is shown below.
C2000H CPU Rack Slave Rack
Slave Rack
Remote
Terminal
Remote
Terminal
Master
Slave
Slave
Wire cable
A Remote Terminal can be used when there is only a limited number of I/O
points required in a single location. Each Remote Terminal provides up to 16
input or output points.
There are two basic types of Remote Terminal. A G72C Remote Terminal is a
‘stand-alone’ Unit that occupies one location in the Remote I/O System. It
provides 16 fixed transistor inputs or outputs and can be used for any appli-
cation suited to these.
Remote Terminals
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5
Wired Remote I/O Systems Section 1-2
The other basic type of Remote Terminal consists of two parts: a Remote
Interface and an I/O Block. The Remote Interface functions to transmit input
or output signals between the Remote I/O System and the I/O Block. I/O
Blocks enable easy removal and replacement of individual relays, including
relays with a large switching capacity, making them ideal for controlling
large motors, heavy equipment, etc. An I/O Block is available for either 16
input points or 16 output points.
Remote Interface Input Block
Replaceable
relays
Terminals
The types of field devices that can be handled is the only functional differ-
ence between G72C Remote Terminals and Remote Interfaces connected to
I/O Blocks. There is no difference that affects the software operation of the
Remote I/O System. In the remainder of this manual, the term Remote Termi-
nal will be used to refer collectively to both types of Remote Terminals unless
there is a reason to specify one or the other.
Converting Link Adapters can be used to create optical cable links within an
otherwise Wired System. The connections to Masters, Slaves, and Remote
Terminals are still wire cable; the optical connections are only between Link
Adapters. Refer to
2-4 Optical Connections in Wired Systems for details.
Branching Wired Remote I/O Systems through Branching Link Adapters is
not possible.
Link Adapters
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

7
SECTION 2
System Design
Although there are many possible Remote I/O Systems that can be built out of Masters, Slaves and Remote T erminals,
each System is limited by the capacity of the PC and the nature of the other Units in the System.Section 2-1 describes
System configurations based on the C500-RM201 Master and C500-R T201 Slave (i.e., for C120, C500, C1000H, and
C2000H Systems), and outlines connection requirements, mounting restrictions, and System size limitations. Section 2-2
provides the same information for C200H Systems. Section 2-3 explains combining Masters and Slaves from different
Systems. Finally , Section 2-4 describes how to incorporate optical links into Wired Remote I/O Systems.
2-1 Basic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-1
C120 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-2
C500 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-3 C1000H and C2000H Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 C200H Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 Combined Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Optical Connections in W ired Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5 Multilevel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com