Omron SYSMAC C20K, SYSMAC C28K, SYSMAC C40K, SYSMAC C60K Installation Manual

Cat. No. W147-E1-02B

K-type Programmable Controllers

Installation Guide

Revised August 1993

C20P

C60K

C60K

C20P

iv

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 head precautions can result in injury to people or dam­age to the product.

DANGER! Indicates information that, if not heeded, is likely to result in loss of life or serious

injury.

WARNING Indicates information that, if not heeded, could possibly result in loss of life or

serious injury.

Caution Indicates information that, if not heeded, could result in relative serious or minor

injury, damage to the product, or faulty operation.

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, means
“word” and is abbreviated “Wd” in documentation.

Visual Aids

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

Indicates information of particular interest for efficient and convenient opera­tion of the product.

Indicates lists of one sort or another, such as procedures, precautions, 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 permis­sion 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 informa­tion contained in this publication.

Note

1, 2, 3...

vi

vii

TABLE OF CONTENTS

SECTION 1

Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2 System Configuration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2

System Installation and Wiring 9. . . . . . . . . . . . . . . . . . . . .

2–1 General 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Installation Environment 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3 Dimensions and Installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–4 I/O Connecting Cable 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–5 Wiring CPUs and Expansion I/O Units 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6 I/O Wiring 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–7 Special Wiring Precautions 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8 Settings 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3

Maintenance and Inspection 47. . . . . . . . . . . . . . . . . . . . . . .

3–1 General 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2 Self–Diagnostic Functions 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3 Replacing Parts 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4 Preventive Measures 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–5 Inspection 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

A Standard Models 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B Specifications 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C Programming Console Operations 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D Programming Instructions 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

E System Configuration Chart 77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Revision History 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ix

About this Manual:

This manual has been prepared to provide the information necessary to install, set up, and maintain
your C-series K-type Programmable Controller, a low-cost, compact, versatile industrial control sys­tem providing up to 148 I/O points. For information regarding system programming and operation,
refer to the operation manual.

Refer to the Appendix for a complete list of all products covered in this manual, along with their full
model numbers.

x

1

SECTION 1

Introduction

1–1 Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–1 CPUs 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–2 Expansion I/O Units 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–3 Analog Timer Unit 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–4 I/O Link Units 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2 System Configuration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

1–1 Nomenclature

This section gives the names and functions of the various components of
K–Type PCs and the basic Units with which they can be combined in a
System.

1–1–1 CPUs

In the diagram below, the C20K is shown as a representative model. Refer to
Appendix A Standard Models for your model’s exact specifications.

Power supply Ground Outputs Indicators

Expansion
I/O Unit,
Analog
Timer Unit, or
I/O Link Unit
connector

24–VDC output

Peripheral connector

InputsHigh–speed counter

(HDM) inputs

EP–ROM socket,
DIP switch

High–speed Counter When the high–speed counter (HDM(61)) is not being used, the two high–

speed counter input terminals can be used as normal DC input terminals.
Their ON/OFF response time, however, will be shorter (0.15 ms max.). Re­gardless of whether or not the high–speed counter command is being used,
DIP switch pins 7 and 8 must be off whenever the hardware reset is not be­ing used.

Indicators The diagram below shows the functions of the various indicators, taking the

C20K as an example.

8 9 10 11

0 1 2 3 4 5 6 7

OUTPUT 1 CH

POWER
RUN

ALARM
ERROR

INPUT 0 CH

OUTPUT: Shows whether the output is ON or OFF.

POWER: Stays lit while power is turned on to the
PC.

RUN: Stays lit while the PC is operating normally.

ALARM: Blinks during battery abnormality or cycle
time overrun. At this time PC operation will be
intermittent.

ERROR: Lights when self–diagnosis detects an
abnormality. The PC will stop operating.

INPUT: Shows whether the input is ON or OFF.

0 1 2 3 4 5 6 7

Memory Each of the C–Series K–Type PCs is provided with a built–in RAM (random–

access memory), as well as a ROM (read–only memory) chip socket. Either
may be used with ease. It is recommended to use the RAM for programming
and, when the program is completed, to save it in a ROM chip for protection.
The memory capacity in either case is 1,194 addresses.

Nomenclature Section 1–1

3

Beneath the cover are the DIP switch and the socket where an EP–ROM
chip may be installed. For details, see 2–7–1 Setting the CPU Dipswitch and
2–7–2 EP–ROM Installation. Only DIP switch pins 1 and 2 are on when the
CPU is delivered.

ROM socket

8 Turn ON to use hardware reset (0001).
7 Turn OFF if HDM(61) is not used.

6 Turn ON for English display.

5 Turn ON to inhibit ALARM indicator.

4, 3 ROM: ON (RAM: OFF)

2, 1 RAM: ON (ROM: OFF)

CAUTION: In case of battery failure, data stored in
the RAM, the DM area, the HR area, etc., will not be preserved.

1–1–2 Expansion I/O Units

In the diagram below, the C20P is shown as a representative model. Refer to
Appendix A Standard Models for your model’s exact specifications.

Power supply Ground Outputs Indicators

CPU,
Expansion
I/O Unit,
Analog
Timer Unit, or
I/O Link Unit
connector

24–VDC outputInputsCPU left/right

selector

CPU,
Expansion
I/O Unit, or
I/O Link Unit
connector

ROM Socket and DIP
Switch

Nomenclature Section 1–1

4

Indicators The following diagram shows the functions of the various indicators, taking

the C20P as an example.

8 9 10 11

0 1 2 3 4 5 6 7

OUTPUT 5 CH

POWER

INPUT 0 CH

OUTPUT: Shows whether the output is ON or OFF.

POWER: Stays lit while power is turned ON to the
I/O Unit.

INPUT: Shows whether the input ON or OFF.

0 1 2 3 4 5 6 7

CPU Left/Right Selector The C20P, C28P, C40P, and C60P Expansion I/O Units all have CPU left/

right selector switches. The C16P and C4K do not. For those models which
have the switch, care must be taken to set it so that it corresponds with the
direction of the I/O Connecting Cable. If the switch is set in the wrong direc­tion, the System will operate as if the I/O Unit were not there. Set the switch
so that the CPU connector side (Left or Right) is ”in,” as shown in the follow­ing diagram. Do not change the switch setting after power has been turned
ON, as this will cause the I/O bus to malfunction.

Lin Rout

To I/O
Link
Unit

From

CPU

LR

Rin Lout

To I/O
Link
Unit

From

CPU

LR

The following example diagrams show the proper switch settings for horizon­tal and vertical mounting of Units.

Horizontal Mounting (All Units can be positioned horizontally.)

Set to Left in Right out

C20P–CN501

CPU

I/O Unit

Nomenclature Section 1–1

5

Vertical Mounting (All Units except the C16P and C4K can be positioned vertically.)

C20P–CN411

Set to Right in Left out

CPU

I/O Unit

1–1–3 Analog Timer Unit

Internal variable resistors

These variable resistors are used to set the timers
and, from left to right, correspond to T0 to T3. The
settings of these resistors are effective only when the
corresponding IN/EXT selector is set to IN. To set or
adjust the time, use the screwdriver supplied with the
Analog Timer Unit. Turn the variable resistor shafts
clockwise to increase the time value.

Min.

Max.

Two M4 mounting screws
(self–rising pressure plate)

Indicators

The SET indicators in the top
row light while timer values
are being set. The TIME UP
indicators in the bottom row
light when the corresponding
timer contact (T0 to T3) turns
ON. Numbers 00 to 03 corre­spond to T0 to T3.

This connector is not used.
Do not remove the cover.

External variable resistor connectors

When using external variable resistors to set the timers, connect the
resistors to these connectors. The corresponding IN/EXT selector
must be set to the EXT position. These connectors correspond to
T0 to T3 from left to right. Use 20 k

Ω external variable resistors.

CPU connector

Install and connect the Expansion
I/O Unit and the CPU horizontally;
otherwise the Analog Timer Unit
cannot be connected to the CPU.

I/O Connecting Cable

C4K–CN502
One cable is supplied with the
Analog Timer Unit

IN/EXT selectors

When using the internal variable
resistor, set the corresponding pin to
IN; when using an external variable
resistor, set the corresponding pin to
EXT. These selectors correspond to
T0 to T3 from left to right.

Nomenclature Section 1–1

6

External Variable Resistor The contactor employs solderless terminals and must be wired as shown be-

low, using AWG 28 to 22 lead wires.

Analog Timer Unit

connector

External variable

resistor (20 k

Ω)

1–1–4 I/O Link Units

The I/O Link Unit must be used as a Remote I/O Slave, and must be used
with a Remote I/O Master. Refer to the Remote I/O Unit Operation Guide for
details.

Operation output terminal

Indicates that the power is ON
and that the CPU is in RUN or
MONITOR mode with no errors.

Repeater Output Terminal

Sends repeater signals to a Link
Adapter. The repeater output is ON
when power is ON in the CPU and
I/O Link Unit. (See the Link Adapter
manual for details.)

Optical fiber connectors

Transmitting error indicator

Blinks during normal transmission.
Lights continuously to indicate a
transmission or connection error.

AC power supply

Ground

CPU or Expansion
I/O Unit connector

Power indicator

Nomenclature Section 1–1

7

1–2 System Configuration

Depending on your control requirements, you can combine various Units for
a total number of I/O points ranging anywhere from 20 to 148.

For example, a single C20K CPU, with no Expansion I/O Units connected,
has a total of 20 I/O points, broken down into 12 input points and 8 output
points. If it is used in combination with a C4K Input Unit, there will be a total
of 16 input points and 8 output points. If combined with a C4K Output Unit,
the total will be 12 input points and 12 output points.

If the C20K is combined with a C16P Expansion I/O Unit, there will be a sum
total of 36 I/O points. If the C16P is an Input Unit, they will be broken down
into 28 input points and 8 output points; if it is an Output Unit, there will be 12
input points and 24 output points. For a listing of possible Unit combinations
and numbers of I/O points, see Appendix E System Configuration Chart.

Only one Expansion I/O Unit with the suffix ”P” can be connected to any
given CPU. It is possible to add more than one C4K, but under no circum­stances can the total number of I/O points exceed 148. Either one Analog
Timer Unit or one I/O Link Unit can be added to any other possible combina­tion of Units.

When determining which configuration to use, another factor to consider is
the ease with which I/O points can be assigned. In order to make the process
as simple as possible, it is recommended that a CPU be used which has
more I/O points than the largest Expansion I/O Unit. For example, rather than
combining a C20P CPU with a C20P Expansion I/O Unit, it would be prefer­able to use a C40P CPU. Similarly, combining a C60P CPU with a C40 Ex­pansion I/O Unit would be better than using a C40P CPU and a C60P Expan­sion I/O Unit.

This is intended only as a brief overview of system configuration possibilities.
In addition to Appendix E System Configuration Chart (mentioned above),
see the I/O tables in the operation manual for details on various possible
combinations of Units and the particular I/O bits and IR area work bits which
are available for use in each configuration.

System Configuration Section 1–2

9

SECTION 2

System Installation and Wiring

2–1 General 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Installation Environment 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3 Dimensions and Installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–4 I/O Connecting Cable 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–5 Wiring CPUs and Expansion I/O Units 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6 I/O Wiring 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6–1 Unit Wiring Diagrams 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6–2 I/O Device Connection Examples 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–7 Special Wiring Precautions 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8 Settings 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8–1 Setting the CPU DIP Switch 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8–2 EP–ROM Installation 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8–3 High–Speed Counter 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8–4 Inhibiting the ALARM Indicator 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8–5 Setting the I/O Link Unit 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

2–1 General

This section explains how to install and set up your Control System, with spe­cifics on the proper environment, actual mounting, applicable cable, wiring,
and switch settings.

2–2 Installation Environment

Although the K–Type Programmable Controller is quite durable, the following
conditions must be observed in order for your System to operate at its high­est level of reliability.

Ambient temperature Operating: 0° to 55°C*

Storage: –20 to 65

°C

Humidity 35% to 85% RH (without condensation)

Must be free from the following:

• Corrosive gases

• Abrupt temperature changes

• Direct sunlight

Atmosphere

• Concentration of dust, salt, iron particles

• Splatter from water, oil, other chemicals

Vibration and shock Must not receive direct impact or vibration

*The ambient operating temperature for the Programming Console is 05 to 455

CAUTION

In low humidity conditions, excessive static electricity of over 8 KV can dam­age internal components such as ICs. Therefore, before touching the PC, be
sure to first touch a grounded metallic object to discharge any static electric­ity buildup.

Noise Prevention Use twisted pair cables with cross–sectional areas of at least 2 mm

2

/conduc­tor (AGW 14) to prevent noise. Avoid mounting the PC close to high–power
equipment, and be sure to mount it at least 200 mm away from power lines.
Wherever possible, use wiring ducts to contain and protect the PC wiring.
The I/O wiring should not be placed in the same duct with the power line or
other wiring. Standard wiring conduits are sufficient as long as the I/O wiring
and power lines are kept separate.

200mm
min.

200mm min.

PC

Installation Environment Section 2–2

11

Duct Work When CPUs and Expansion I/O Units are mounted horizontally, be sure that

no ducts or wiring passes between them. The diagram shows an example of
unacceptable mounting.

If the controlled system requires either 10 A at 400 V max. or 20 A at 220 V
max. power cables, and if the conduits are run parallel to each other, a mini­mum distance of 300 mm must be provided between the I/O lines and the
power cable. If the I/O lines and the power cables must be placed in the
same duct at the point of connection to the equipment, be sure to screen
them with a grounded metal plate.

3

Metal (iron) plate

200 mm min.

Grounding (at a ground resistance of less than 100

Ω )

1 PC I/O circuit
2 PC power circuit
3 General control circuit/Power circuit

1

2

Weak current cable

300 mm min.

300 mm min.

Control cable

Power cable

Ground (at a resistance of
less than 100

Ω )

1

2

3

Installation Environment Section 2–2

12

2–3 Dimensions and Installation

This section gives dimensions and other information necessary for mounting
the CPUs, Expansion I/O Units, Analog Timer Units, and I/O Link Units. All
measurements are in mm.

CPUs (The C20K is shown as an example.)

A

240

240

290

340

Model

C20K

C28K

C40K

C60K

B

250

250

300

350

C

100

100

100

120

Four M4 screws

D

110

110

110

140

E

5

5

5

15

Expansion I/O Units (The C20P is shown as an example.)

Four M4 screws

Dimensions and Installation Section 2–3

13

Expansion I/O Units cont.

Model

C16P

C20P

C28P

C40P

C60P

A

145

240

240

290

340

B

155

250

250

300

350

C

100

100

100

100

120

D

110

110

110

110

140

E

5

5

5

5

15

2–M4

C4K

Analog Timer Units C4K–TM

I/O Link Units C20–LK011(–P)

Two M4 holes

Dimensions and Installation Section 2–3

14

DIN Rails

*

5

15

––

Model

PFP–50N

PFP–100N

PFP–100N2

L

50 cm

1 m

1 m

* Use the PFP–100N2 for the C60P.

If the PFP–50N or PFP–100N are
used, the Unit will be slanted.

PFP–50N/PFP–100N

PFP–100N2

Endplate PFP–M

Eight M4
panhead
screws

Spacer PFP–S

Mounting A CPU and Expansion I/O Unit may be mounted either vertically or horizon-

tally in relation to each other but the orientation of each unit itself must re­main horizontal as described by the following mounting diagrams. If mounting
the units vertically, position the CPU above the Expansion I/O Unit; if mount­ing horizontally, position the CPU to the left.

When installing the CPUs, Expansion I/O Units, and I/O Link Units, allow suf­ficient space between the Units for cooling. Models taking a 100– to
240–VAC power supply require a minimum cooling space of 10 mm between
Units. Avoid mounting any units in warm areas or over a heat source of any
kind.In addition, if the CPU is installed in a control box, allow sufficient space
for maintenence and ventilation. It may be necessary to install a ventilation
fan in the control box to maintain the required ambient temperature as indi­cated in Appendix B Specifications.

Control Box

Fan

PC

Vent

Dimensions and Installation Section 2–3

15

Another factor to consider is the I/O wiring (see 2–5 I/O Wiring). If the CPU
and/or Expansion I/O Units are mounted vertically, a minimum of 70 mm
open space is required for ease of I/O wiring. The spacing of the mounting
holes, for both vertical and horizontal mounting is as shown below.

Horizontal Mounting

A ± 0.2 A ± 0.2

G

A ± 0.2

D C

4–M4 4–M4 2–M4

Expansion

I/O Unit

CPU

Analog
Timer Unit

B B

F–10

A ± 0.2

2–M4

B

F

F

C ± 0.2

D

C4K

230 250

5

E

H

110

± 0.2

120

2–M4

I/O
Link
Unit

Vertical Mounting

D C

4–M4

CPU

B

5

A ± 0.2

Expansion

I/O Unit

D

230

120

2–M4

110 ± 0.2

230

I–10

I–10

C ± 0.2

I

I

I/O
Link
Unit

Dimensions and Installation Section 2–3

16

Model

CPU

I/O Unit

I/O Unit

Analog
Timer
Unit

C20K

C28K

C40K

C60K

C16P

C4K

C4K
–TM

A

±0.2

240

240

290

340

145

31

31

B

250

250

300

350

155

40

40

C±0.2

100

100

100

120

100

100

100

D

110

110

110

140

110

110

110

E

5

5

5

15

5

5

5

F

15 to 40G15 to 35H20 to 40I80 to 130

Attach End Plates (PFP–M) to both ends (as shown below) when connecting
CPUs, Expansion I/O Units, or Analog Timer Units to a DIN Rail. It is also
recommended that a Spacer (PFP–S) be installed between a CPU and Ex­pansion I/O Unit when they are mounted horizontally.

XX

510 10

End plate

DIN Rail

Spacer End plate

CPU I/O Unit

Mounting screws are included with CPUs, Expansion I/O Units, and Analog
Timer Units. They must be purchased separately for I/O Link Units.

2–4 I/O Connecting Cable

Applicable connecting cable will vary according to which Units are connected
and whether they are mounted horizontally or vertically. All Expansion I/O
Units except the C16P and C4K use C20P–CN501 cable (5 cm) for horizon­tal mounting and C20P–CN411 cable (40 cm) for vertical mounting. The
C16P and C4K cannot be mounted vertically. The C16P can use either of the
above–mentioned cables for horizontal mounting. The C4K can use only
C4K–CN501 cable (5 cm). For connecting I/O Link Units, use C20P–CN711
cable (70 cm).

CAUTION:

Always be sure to use only the cable that is included with the Unit. Using the
wrong cable (such as the C20 I/O Connecting Cable or I/O Link Connecting
Cable) for connecting Expansion I/O Units can cause serious damage to the
Units.

I/O Connecting Cable Section 2–4

17

The following diagrams illustrate the appropriate cables for connecting CPUs,
Expansion I/O Units, and I/O Link Units either horizontally or vertically.

5 to 30 cm

I/O Connecting
Cable C20P–CN501

100 to 200mm

100 to 200mm

Horizontal Mounting

CPU

I/O Unit

CPU

I/O Unit

I/O Unit

CPU

I/O Link Connecting
Cable C20P–CN711

I/O Link
Unit

I/O Link
Unit

I/O Link
Unit

Vertical Mounting

I/O Connecting
Cable C20P–CN411

I/O Link Connecting
Cable C20P–CN711

I/O Link Connecting
Cable C20–CN711

I/O Connecting
Cable C20P–CN411

One Analog Timer Unit can be connected directly to a CPU or to any combi­nation of a CPU and Expansion I/O Units. In either case, as shown in the fol­lowing diagram, the Units must be mounted horizontally.

Analog
Timer Unit

Connecting Cable
C4K–CN501

Analog
Timer Unit

Connecting Cable
C4K–CN501

CPU

CPU

I/O Unit

Connecting Cable
C20P–CN501

Connecting Analog Timer
Units

I/O Connecting Cable Section 2–4

18

Connecting I/O Link Units One I/O Link Unit can be connected directly to a CPU or to any combination

of a CPU and Expansion I/O Units. It cannot be used in the same PC System
with an Analog Timer Unit.

Connection Procedure Follow these four steps to connect Expansion I/O Unit, Analog Timer, and I/O

Link Unit Connecting Cables.

1, 2, 3... 1. Remove the connector cover from the CPU, using a screwdriver if nec-

essary.

2. Insert one of the cable’s connectors into the cover. (Once inserted, the

connector cannot be removed.)

3. Reinsert the cover/connector combination into the CPU.

4. Repeat this procedure on the other end of the cable.

Cover

Optical Fiber Cable Optical fiber cable can be used for extending transmission distance and re-

ducing noise. There are three types, and the appropriate cable for any given
situation will depend on the desired transmission distance and the particular
Units which need to be connected.

All–plastic optical fiber cable (APF) is for short–distance transmission (up to
20 m) and can be used only by Units with the suffix ”–P” attached. Plastic–
clad optical fiber cable (PCF) is for middle–distance transmission (up to 200
m for Units with ”–P” and 800 m for Units without ”–P”). Crystal optical fiber
cable (AGF) is for long–distance transmission (up to 3 km) and can be con­nected only to certain Link Adapters.

Although laying optical fiber cable does not basically differ from laying wire
cable, there are certain precautions which should be observed. For details,
refer to the Optical Remote I/O Systems manual.

Link Adapters Although it is normally possible to connect Units in series, a failure (power

failure, disconnection, etc.) in one of the Units will cause all the subsequent
Units to cease operating. You can use Link Adapters to prevent this type of
situation from occuring. Even if a power failure occurs in a Unit connected to
a branch line of a Link Adapter, the Link Adapter will bypass that Unit and
continue to transmit signals to the other Units. You can also use Link Adapt­ers for branching and for converting between various types of wire and opti­cal cable. For details on these and other functions of Link Adapters, refer to
the Link Adapter manual.

I/O Connecting Cable Section 2–4

19

2–5 Wiring CPUs and Expansion I/O Units

Power Supply Use a commercially available 24–VDC, 100– to 120VAC, or 200– to

240–VAC power supply (depending on your model) for the CPU. When an
Expansion I/O Unit(s) or an I/O Link Unit is used, the power supply must also
be connected to each of these Units. Where possible, use independent
power sources for the inputs, the output loads, and the CPU. All of the CPUs
and Expansion I/O Units may be connected to the same power source. If a
CPU and an Expansion I/O Unit are connected to separate power supplies,
then the CPU (as well as the Programming Console, etc.) will not operate
unless power is turned on to the Expansion I/O Unit.

Wiring The following diagram illustrates the proper wiring for CPUs and Expansion

I/O Units with the suffix ”–A.” These models use a power supply of 100 to 240
VAC, with an operating voltage range of 85 to 264 VAC. The internal noise–
reduction system in these Units is sufficient for general power line noise, but
ground noise can be greatly reduced by using a 1:1 insulating transformer.
Ground only the primary side of the transformer. To prevent voltage drop, use
wires 2 mm2 or less in cross sectional area, twisting them as shown in the
diagram. When power is turned on, the incoming current will be approxi­mately 10 A.

Breaker

Insulating
transformer
1:1

M3.5 screws

Wiring CPUs and Expansion I/O Units Section 2–5

20

Connect an I/O Link Unit as shown in the following diagram, using M4 termi­nal screws.

M4 screws

100 to 240 VAC

Insulating
transformer
1:1

Breaker

The following diagram illustrates the proper wiring for CPUs and Expansion
I/O Units with the suffix ”–D.” These models use a power supply of 24 VDC
with an operating voltage range of 20.6 to 26.4 VDC. Be careful to connect
the positive and negative terminals correctly. When power is turned ON, the
incoming current will be approximately 30 A.

Breaker

M3.5 screws

Ground The Line Ground (LG) terminal is a noise filter neutral terminal which does

not normally require grounding. When electrical noise is a problem, however,
this terminal should be connected to the GR terminal.

Attach an independent ground–wire with a cross–sectional area of at least 2
mm

2

(AWG 14) to the GR terminal, to avoid electrical shock. Ground resis-

Wiring CPUs and Expansion I/O Units Section 2–5

21

tance must be less than 100 Ω. Do not use a ground–wire longer than 20 m.
Care must be taken because ground resistance is affected by the nature of
the ground, water content, season, and the amount of time that has elapsed
since the wire was laid underground.

CPU operation may be adversely affected if the ground–wire is shared with
other equipment, or if grounding is attempted by attaching the ground–wire to
the metal superstructure of a building. When either Expansion I/O Units or
I/O Link Units are used, they also require grounding at the GR terminal.
These may all be included on the same ground.

LG

GR

Wiring CPUs and Expansion I/O Units Section 2–5

22

2–6 I/O Wiring

This section shows I/O wiring diagrams for representative models of all the
CPUs, Expansion I/O Units, and I/O Link Units covered in this manual. It also
gives connection examples for the sensors and switches which can be con­nected as input devices.

2–6–1 Unit Wiring Diagrams

The following items are all available for use as outputs. Do not mix them
within the same common circuit.

Output

Relay

Transistor

Triac

Load Power Supply

Up to 250 VAC/24 VDC

5 to 24 VDC

100 to 120/200 to 240 VAC

When using transistor outputs, connect the common line (COM) to the load
power supply negative side. For an induction load, connect the diode to the
load in parallel, as shown in the diagram, such that the cathode is on the
positive side of the power supply.

L

OUT COM

+

When using the high–speed counter instruction (HDM(61)), wire input 0000
as the high–speed counter input and input 0001 as the hardware reset input.
If the HDM is not used, inputs 0000 and 0001 may be used as general input
terminals. Their response time (0.15 ms), however, will be shorter than the
other inputs.

Do not connect the NC terminals to anything. The DC inputs in the following
I/O wiring diagrams are NPN (positive common). Reverse the polarity if PNP
(negative common) is used.

In the diagrams, representative models are sometimes used to cover several
models with similar wiring. In such cases, the type of Unit (i.e., CPU C60K) is
listed first, followed by the suffix of the applicable model number. A space left
blank (_) in the model number indicates that any of several numbers could be
inserted there.

I/O Wiring Section 2–6

23

The inputs can use the Unit’s 24–VDC power supply output. If the maximum
output current of 0.2 A is not sufficient a separate DC power supply must be
used.

Load
power
supply

Relay contact outputs

Transistor outputs

Triac outputs

Inputs (24 VDC)

M3.5 screws

7.5 max.

Power
supply
(100 to
240 VAC)

NC

NC

Ground

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Not in C20K Not in C20K or C28K

Not in C20K

Not in C20K or C28K

High–
speed
counter
input

NC: Do not connect the NC terminals to anything.

COM

24 VDC

output

(0.2 A max.)

7.5 max.

Hardware reset input

CPU C20K, C28K, C40K
(CD_–A)

I/O Wiring Section 2–6

24

Inputs 0000 and 0001 can use the Unit’s 24–VDC power supply output. If the
maximum output current of 0.2 A is not sufficient a separate DC power sup­ply must be used. Inputs 0002 to 0107 take a 100–VAC power supply.

0000, 0001
24–VDC inputs

0002 to 0101
100–VAC inputs

Relay contact outputs

Triac outputs

Power
supply
(100 to
240 VAC)

NC

NC

Ground

Not in C20K Not in C20K or C28K

Not in C20K

Not in C20K or C28K

High–
speed
counter
input

24 VDC
output
(0.2 A max.)

100 to 120 VAC

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Hardware
reset input

CPU C20K, C28K, C40K
(CA_–A)

I/O Wiring Section 2–6

25

A separate power supply must be used for the DC inputs.

Relay contact outputs

Transistor outputs

Inputs (24 VDC)

Power
supply
(24 VDC)

NCNC

Ground

Not in C20K Not in C20K or C28K

Not in C20K

Not in C20K or C28K

High–
speed
counter
input

NC: Do not connect the NC terminals to anything.

COM +
24 VDC

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

NCNC

Hardware
reset input

CPU C20P, C28P, C40P
(CD_–D)

I/O Wiring Section 2–6

26

The inputs can use the Unit’s 24–VDC power supply output. If the maximum
output current of 0.3 A is not sufficient, however, a separate DC power supply
must be used.

Relay contact outputs

Transistor outputs

Triac outputs

Power
supply
(100 to
240
VAC)

Ground

Upper terminal
block

Lower terminal
block

Inputs (24 VDC)

High–
speed
counter
input

Hardware reset input

24_VDC
output
(0.3 A
max.)

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load power
supply

CPU C60K (CD_–A)

I/O Wiring Section 2–6

27

CPU C60K (CA_–A) Inputs 0000 and 0001 can use the Unit’s 24–VDC power supply output. If the

maximum output current of 0.3 A is not sufficient, however, a separate DC
power supply must be used. Inputs 0002 to 0115 take a 100–VAC power sup­ply.

Relay contact outputs

Triac outputs

Power
supply
(100 to
240
VAC)

Ground

Load power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Upper terminal
block

Lower terminal
block

High–
speed
counter
input

24_VDC
output
(0.3 A
max.)

0000, 0001
24–VDC inputs

0002 to 0115
100–VAC inputs

100 to 120 VAC

M3.5 screws

7.5 max.

7.5 max.

Hardware
reset input

I/O Wiring Section 2–6

28

CPU C60K (CD_–D) A separate power supply must be used for the DC inputs.

Relay contact outputs

Transistor outputs

Power
supply
(24
VDC)

Ground

Load power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Upper terminal
block

Lower terminal
block

Inputs (24 VDC)

High–
speed
counter
input

Hardware reset input

M3.5 screws

7.5 max.

7.5 max.

I/O Wiring Section 2–6

29

The inputs can use the Unit’s 24–VDC power supply output. If the maximum
output current of 0.2 A is not sufficient, however, a separate DC power supply
must be used.

Relay contact outputs

Transistor outputs

Triac outputs

Inputs (24 VDC)

Power
supply
(100 to
240 VAC)

NC

NC

Ground

Not in C20K Not in C20K or C28K

Not in C20K

Not in C20K or C28K

COM

24 VDC
output
(0.2 A max.)

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

I/O Unit C20P/C28P/C40P
(ED_–A)

I/O Wiring Section 2–6

30

I/O Unit C20P/C28P/C40P (EA_–A)

Inputs (100 VAC)

Relay contact outputs

Triac outputs

Power
supply
(100 to
240 VAC)

NC

NC

Ground

Not in C20K Not in C20K or C28K

Not in C20K

Not in C20K or C28K

COM

24 VDC
output
(0.2 A max.)

100 to 120 VAC

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

A separate power supply must be used for the DC inputs.

Inputs (24 VDC)

Relay contact outputs

Triac outputs

Power
supply
(24 VDC)

Ground

Not in C20K Not in C20K or C28K

Not in C20K

Not in C20K or C28K

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

NC

NC

I/O Unit C20P/C28P/C40P
(ED_–D)

I/O Wiring Section 2–6

31

The inputs can use the Unit’s 24–VDC power supply output. If the maximum
output current of 0.3 A is not sufficient, however, a separate DC power supply
must be used.

Relay contact outputs

Transistor outputs

Triac outputs

Power
supply
(100 to
240
VAC)

Ground

Upper terminal
block

Lower terminal
block

Inputs (24 VDC)

24_VDC
output
(0.3 A
max.)

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load power
supply

100 240VAC

CH(00 15) CH(00 15)

CH(00 15)

CH(00 11)

INPUT

COM

NC NC

NC

I/O Unit C60P (ED_–A)

I/O Wiring Section 2–6

32

I/O Unit C60P (EA_–A)

Relay contact outputs

Triac outputs

Power
supply
(100 to
240
VAC)

Ground

Upper terminal
block

Lower terminal
block

Inputs (100 VAC)

24_VDC
output
(0.3 A
max.)

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load power
supply

100 240VAC

CH(00 15) CH(00 15)

CH(00 15)

CH(00 11)

INPUT

COM

NC NC

NC

I/O Unit C60P (ED_–D) A separate power supply must be used for the DC inputs.

Relay contact outputs

Transistor outputs

Power
supply
(24
VDC)

Ground

Upper terminal
block

Lower terminal
block

Inputs (24 VDC)

M3.5 screws

7.5 max.

7.5 max.

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load power
supply

Load power
supply

100 240VAC

CH(00 15) CH(00 15)

CH(00 15)

CH(00 11)

INPUT

NC NC

NCNCNC

I/O Wiring Section 2–6

33

I/O Unit C16P–ID–A The inputs can use the Unit’s 24–VDC power supply output. If the maximum

output current of 0.2 A is not sufficient, however, a separate DC power supply
must be used.

Inputs (24 VDC)

Power sup­ply (100 to
240 VAC)

Ground

M3.5 screws

7.5 max.

7.5 max.

Input Unit C16P–ID A separate power supply must be used for the DC inputs.

Inputs (24 VDC)

Ground

24 VDC

24 VDC

M3.5 screws

7.5 max.

7.5 max.

NCNC NC

NC NC NC NC

I/O Wiring Section 2–6

34

Input Unit C16P–IA

Inputs (100 VAC)

100 to 120 VAC

100 to 120 VAC

M3.5 screws

Ground

7.5 max.

7.5 max.

NC NC NC

NCNC NC NC

Output Unit C16P–O_–A

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Relay contact outputs

Transistor outputs

Triac outputs

Power
supply
(100 to
240
VAC)

Ground

M3.5 screws

7.5 max.

7.5 max.

I/O Wiring Section 2–6

35

Output Unit C16P–O_–D

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Load
power
supply

Relay contact outputs

Transistor outputs

Power
supply
(24
VDC)

Ground

M3.5 screws

7.5 max.

7.5 max.

Input Unit C4K–ID The C4K–ID can use the 24–VDC output from the CPU if the current (0.3 A)

is sufficient. If this is not sufficient, a separate DC power source must be
used.

Inputs (24 VDC)

24 VDC

24 VDC

M3.5 screws

7.5 max.

7.5 max.

I/O Wiring Section 2–6

36

Input Unit C4K–IA

Inputs (100 VAC)

100 to 120 VDC

100 to 120 VAC

M3.5 screws

7.5 max.

7.5 max.

Output Unit C4K–O__

Load
power
supply

Load
power
supply

Relay contact outputs

Transistor outputs

Triac outputs

M3.5 screws

7.5 max.

7.5 max.

I/O Wiring Section 2–6

37

I/O Link Unit 3G2C7–LK011(–P)E

RUN output

M4 screws

Repeater output (Used only when connected to Link Adapter.)

Link Adapter

M4 screws

Optical fiber connector

Power supply
(100 to 240 VAC)

8.6 max.

8.6 max.

I/O Wiring Section 2–6

38

2–6–2 I/O Device Connection Examples

The following diagrams show connection examples for the sensors and
switches which can be connected as input devices. Be sure to check all input
devices for voltage and amperage compatibility before connecting.

AC Input Devices

Prox
switch
main
circuit

10 mA

100 VAC

IN

COM

AC input

IN

COM –

AC input

Contact output

AC–switching

DC Input Devices

Sensor
power
supply

Sensor
power
supply

Sensor
power
supply

Contact output

7mA

24 VDC

0 V

IN

COM +

DC input

Output

Current
regulator

NPN open–collector

24 VDC

0 V

IN

COM +

DC input

24 VDC

0 V

IN

COM –

24 VDC

0 V

IN

COM +

DC input

DC input

7mA

0 V

NPN Contact output

PNP current output

+

Output

7mA

0 V

+

Output

7mA

0 V

High–Speed Counter Input Devices (Rotary Encoder)

24 VDC

0 V

IN(0000)

COM

24 VDC

0 V

IN (0000)

COM

24 VDC

0 V

IN(0000)

COM

Red

White

Black

Red

White(Green)

Black

Red

White(Green,Yellow)

Black

Shield

High–speed
counter
input

High–speed
counter
input

High–speed
counter
input

E6A–CS4C E6A–CW4C

E6C–CWZ5C

I/O Wiring Section 2–6

39

2–7 Special Wiring Precautions

Emergency Stop Circuit An external relay circuit can be constructed to prevent a CPU breakdown or

malfunction from damaging the entire System. In the following diagram, SR
bit 1813 is always closed when the CPU is operating. If the program is set up
as shown in the diagram, then output 0100 will be ON whenever the CPU is
in either RUN or MONITOR mode, and it will function as an output to monitor
whether the CPU is operating properly or not.

1813

0100

Example

Normally
ON

RUN output

An I/O Link Unit’s RUN output terminal is wired to a CPU’s input terminal,
and can function as an output to monitor whether the entire PC System, in­cluding the I/O Link Unit, is operating properly or not. In the diagram below,
the I/O Link Unit is connected to input terminal 0002. If the program is set up
as shown in the diagram, then output 0100 wil be ON whenever the CPU is in
either RUN or MONITOR mode. The I/O Link Unit’s RUN output and the
CPU’s RUN or MONITOR output together comprise an AND in the external
relay circuit, and this can be used to construct an emergency stop circuit.

C20P

24 VDC
Output

0002

RUN output

I/O Link Unit

0002 1813

0100

Example

Normally
open (NO)

Emergency Stop Circuit
When an I/O Link Unit is
Used

Special Wiring Precautions Section 2–7

40

Interlock Circuit There are sometimes cases in which a PC can direct a machine to do either

of two contrasting actions, and in which damage could result from a malfunc­tion in the PC. For example, the PC could be set up to output commands to a
motor to operate alternately in forward and reverse. In such cases an inter­lock circuit can be set up to prevent damage in case of a malfunction. In the
example diagram below, the interlock circuit will prevent MC1 and MC2 from
turning ON at the same time even if the PC malfunctions and turns outputs
0101 and 0102 ON simultaneously.

MC1

MC2

Motor forward

Motor reverse

Interlock circuit

PC

0101

0102

Electric power systems, control systems, PC power supply systems, and I/O
power supply systems should all be wired separately, as shown in the follow­ing diagram.

CR1

DC power

supply

PC

Control system

Electric power system

PC RUN

output

Twisted pair cable

CR!

+

–

Surge suppressor

MCB2

MCB1

Power Failure Protection A power sequence circuit is incorporated in the PC to prevent malfunctioning

due to momentary power failures or voltage drops.

Wiring of Power Supply
Systems

Special Wiring Precautions Section 2–7

41

The PC ignores all momentary power failures if the interruption lasts no
longer than 10 ms. If the interruption is between 10 ms and 25 ms, it may or
may not be detected. If the supply voltage drops below 85% for longer than
25 ms, the PC will stop operating and the external outputs will be automati­cally turned off. Operation automatically resumes when the supply voltage is
restored to more than 85% of the rated voltage. Detection time will be slightly
shorter when a DC power supply is used.

Momentary power
failure detection
time

Power Supply

Power failure
detection signal

CPU voltage (5V)

Power reset

Run monitor
outputs

Approx. 1 s

2–8 Settings

After writing the program and preparing the EP–ROM chip (see the Opera­tion Manual), the CPU DIP switch must be set and the EP–ROM installed.

2–8–1 Setting the CPU DIP Switch

1, 2, 3... 1. Turn OFF the power to the CPU.

2. Remove the cover from the CPU, using a screwdriver if necessary.

3. Set DIP switch pins 1 and 2 to OFF, and pins 3 and 4 to ON.

ON
OFF

OFF

ON

Settings Section 2–8

42

2–8–2 EPROM Installation

1, 2, 3... 1. Remove the cover as shown above.

2. Raise the lever to unlock the socket.

3. Holding the chip so as not to touch the pins, insert it into the socket with

the notch to the left.

4. Check to be sure the chip has been properly installed.

5. Return the lever to its original position, locking the chip in.

6. Replace the cover.

7. Turn the power ON and verify that the CPU is operating in MONITOR

mode.

Lever

I/C Socket

Insert with the notch to the left.

2–8–3 High–speed Counter

When the high–speed counter (HDM(61)) is used, input (0000) is used exclu­sively for this purpose and responds up to 2 kHz. Either the hardware reset
or software reset may be used. The software reset may be delayed, depend­ing on the cycle time, since it is based on the program. The hardware reset is
unrelated to the cycle time and can operate at high speed. To use the hard­ware reset (input 0001), set DIP switch pins 7 and 8 to ON as shown below.
Be sure to set them to OFF whenever the hardware reset is not being used,
regardless of whether the high–speed counter is being used or not.

ON

ON

Settings Section 2–8

43

2–8–4 Inhibiting the ALARM Indicator

To inhibit the ALARM indicator when using EP–ROM, set DIP switch pin 5 to
ON as shown below.

Connect a backup battery to preserve data memory, current counter value,
and HR area bits, in case of a power failure. In order to maintain the battery,
DIP switch pin 5 should normally be set to OFF. In any case, it must always
be OFF when using RAM.

2–8–5 Setting the I/O Link Unit

In order for the I/O Link Unit to operate, it is necessary to determine the as­signment of I/O words between the I/O Link Unit and the Remote I/O Master
Unit controlled by the CPU. This is done with the DIP switch on the I/O Link
Unit. The following explanation is intended only to give a general outline of
the proper procedure. For details, refer to the Optical Remote I/O Systems
manual.

Caution Be certain that power is off before setting the DIP switch. Setting it with the

power ON can cause the Unit to malfunction.

1, 2, 3... 1. Check the last assigned word number on the CPU. When setting the I/O

Link Unit, be sure not to overlap the words or to exceed the number of
I/O points in the CPU.

2. Turn OFF the power to the I/O Link Unit.

3. Check to be sure that the power supply LED light is off. Remove the

cover on the side panel of the Unit, using a screwdriver if necessary.

Settings Section 2–8

44

4. Use the 6 DIP switch pins to set the word number from 0 to 30. As

shown in the diagram below, the word numbers are set in binary, with
pin 5 being ”1” and pin 1 being ”16.” Beginning with pin 1, turn ON the
pins required to arrive at the desired number of words. Turn ON pin 6 to
set the termination resistance if the I/O Link Unit is a terminator (the final
Unit in the System). If the Unit is not a terminator, leave pin 6 OFF.

ON

123456

168421

The following example diagram illustrates the proper DIP switch setting for
word 26.

ON

1 2 34 56

16 8 4 2 1

Terminator: ON

Pins 1, 2, and 4, set ON
16 + 8 + 2 =Word 26

5. After initially setting the DIP switches, an I/O table check should be per-

formed on the CPU to ensure that there are no errors in the settings.

6. Replace the cover. In addition, to prevent dirt or outside light from caus-

ing a malfunction, be sure that any unused optical fiber connectors are
covered with the protective caps. The Unit should be ready to operate
as soon as power is turned on. If it does not operate normally, refer to
3–1 Self–Diagnostic Function.

In the diagram below, a C20 CPU, a C40K CPU, a C20P I/O Unit and two I/O
Link Units can exchange data over a distance with a C500 Remote I/O Mas­ter Unit. The C20 I/O Link Unit is set for word 28 (which accesses word 29 as
well), and the C40K I/O Link Unit is set for word 30 (which accesses word 31
as well). The C40K I/O Link Unit is also set as the terminator.

C500 CPU Rack

C500 Remote I/O Master Unit

Optical fiber cable Optical fiber cable

C20 CPU I/O Link Unit

C40K CPU C20P I/O Unit

I/O Link Unit

System Configuration
Example

Settings Section 2–8

45

When setting the I/O Link Unit, in this example, it is necessary to take into
account not only the I/O words of the C500 Remote I/O Master Unit, but also
those of the C20 CPU and the C40K CPU.

C20P

C20P

C40K

OUT

word 5

IN

word 0

OUT

word 6

IN

word 6

C500 Word Assignment

0

1

2

27

28

29

30

31

Auto-

matic

Man-

ual

C20 Word Assignment C40P Word Assignment

I/O Link

(C20)

I/O Link

(C40K)

OUT word 1, 3

IN word 0, 2 IN word 4

OUT word 5

OUT

word 7

IN

word 1

I/O Link Unit

DIP Switch Setting

Set for Word 28

Not terminator

Set for Word 30

Set as terminator

As seen from C20, C40P

Word 1: 16 input points

Word 6: 16 output points

Data input from C500

Data output to C500

Word 6: 16 input points

Word 7: 16 output points

Data input from C500

Data output to C500

ON

123456

ON

123456

Model

I/O Link

(20)

I/O Link

(40P)

As seen from C20

Word 28: 16 output points

Word 29: 16 input points

Data output to C20

Data input from C20

Word 30: 16 output points

Word 31: input points

Data output to C40K

Data input from C40K

Settings Section 2–8

47

SECTION 3

Maintenance and Inspection

3–1 General 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2 Self–Diagnostic Functions 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3 Replacing Parts 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3–1 Fuses 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3–2 Relays 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3–3 Batteries 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4 Preventive Measures 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–5 Inspection 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

48

3–1 General

This section explains the proper maintenance and inspection procedures for
the K–Type PCs, including specifics on replacing parts and taking precaution­ary measures to ensure reliable, trouble–free operation.

3–2 Self–Diagnostic Functions

The K–Type PC has self–diagnostic functions to identify many types of ab­normal system conditions. These functions minimize downtime and enable
quick, smooth error correction.

The ERROR light on the front panel of the Programming Console indicates
hardware errors such as CPU, Expansion I/O Unit, and Remote I/O Unit mal­functions. The ALARM light indicates such things as cycle time overrun, bat­tery error, or user–defined errors. The following chart lists possible malfunc­tions, error messages, and correction procedures.

Correction

Check the power supply voltage and
power lines.

In PROGRAM mode, turn on power
again.
Check the user program again.

Check the program and fix the error.
Rerun the program.
Check that the DIP switch settings
are correct.
Check that the EP–ROM chip is
properly mounted.
Check that the battery is properly
inserted.
Clear the error after fixing it.

Write END in the final address of
the program.

Check that all the lines are properly
connected between the Units.
Check that the CPU Left/Right Se­lector on the Expansion I/O Unit is
properly set.
Clear the error after fixing it.

Make sure that there are no more
than 8 JMP–JME pairs in the pro­gram.

Check battery connections.
Replace battery.

Check the program again.

Situation

Fatal error

Non–fatal
error

Item

Power failure

CPU error (watchdog timer

over 130 ms)

Memory error

Missing END instruction

I/O bus error

JMP over

Battery error

Cycle time overrun (watch-

dog timer 100 to 130 ms)

ALARM
ERROR

Error Display

___

___

MEMORY ERR

NO END INST

I/O BUS ERR

JMP OVER

BATT LOW

CYCLE TIME
OVER

PC LED States

POWER

RUN

Stays lit. Blinks. Not lit.

I/O Link Unit Error

Item

Power failure

Transmission error

I/O Link Unit LED States

Correction

Check the power supply voltage and power lines.

Check connections of the optical fiber cable and connectors.
Check the channel and terminator settings.

POWER

*Note: Blinking ERROR LED indicates normal transmission.

*

ERROR

Self–Diagnostic Functions Section 3–2

49

3–3 Replacing Parts

In order that your System be restored to operation as quickly as possible, it is
advisable to maintain an adequate stock of replaceable parts on hand.

CAUTION:

Replace all fuses, relays, and other parts as quickly as possible. If the cover
is left off for a long period the RAM’s contents may be erased.

3–3–1 Fuses

Replace fuses as follows:

1, 2, 3... 1. Turn off power to the Unit.

2. Using a Phillips screwdriver to loosen the 4 screws, remove the cover
from the Unit, lifting it from the left.

Phillips screwdriver

3. Remove the cover from the fuse socket as shown below.

Fuse socket

Fuse cover

Fuse socket

4. Using a standard screwdriver, remove the defective fuses and insert the
new ones.

5. Replace the cover, positioning it over the Unit and snapping it into place
by applying pressure to the area marked ”OMRON.”

The above procedure applies to CPUs and Expansion I/O Units. The proce­dure is similar for I/O Link Units except that the cover is secured by 4 catches
instead of 4 screws. Use a standard screwdriver to pop the cover off and in­sert the fuses as shown below.

Replacing Parts Section 3–3

50

Catches

Catches

Standard screwdriver

Power fuse
1 A, 250 V

Refer to the chart below in selecting the proper fuses.

Power Supply Fuses φ 5.2 x 20 (MF1NR)

CPU’s,
Expansion
I/O Units

A–suffix

D–suffix

C16P

C20K, C28K, C40K

C60K

C16P

C20K, C28K, C40K

C60K

250 V, 1 A

250 V, 2 A

250 V, 3 A

125 V. 1 A

125 V, 3 A

125 V, 5 A

250 V, 1 A

I/O Link Units

24–VDC Output Fuses φ 5.2 x 20 (MF51NR)

CPUs, Expansion I/O Units

(A–suffix only)

C16P

C20K, C28K, C40K, C60K

125 V, 0.2 A

125 V, 0.5 A

3–3–2 Relays

Replace relays as follows:

1, 2, 3... 1. Turn off power to the Unit.

2. Using a Phillips screwdriver to loosen the 4 screws, remove the cover
from the Unit, lifting it from the left.

3. Using the relay puller attached to the right of the Unit, remove the defec­tive relay and insert the new one.

Replacing Parts Section 3–3

51

Relay

Relay puller

4. Replace the cover, positioning it over the Unit and snapping it into place
by applying pressure to the area marked ”OMRON.”

Relays are arranged as follows for the C16P, C20K, C28K, C40K, and C60K.
Among these Units, most models have relay sockets, although certain mod­els do not. The C4K is not shown below; in this Unit the relays are directly
attached.

5601234567 701234 8910118 9 10 1112 1314 15

70123456

C16P C20K C28K

23111098

70123456

01 4 5 6

12 1314 15

891011

7

C40K C60K

012345678910110123

word n word n+1

word n word n+1

3–3–3 Batteries

The service life of the battery (3G2A9–BAT08) is five years at 25° C. It will be
shorter at higher temperatures. The ALARM indicator blinks when the battery
is discharged. If this happens, replace the battery within one week. The date
by which the first battery must be replaced is written on the side panel of the
CPU. If, for example, it says ”FIRST REPLACEMENT 93/12,” it means that
you should replace the battery not later than December 1993.

Caution The new battery must be connected within five minutes of removing the old

to preserve the data in the CPU. In addition, as there is danger of combus­tion, explosion or leakage, do not attempt to charge, heat or disassemble the
battery, or short–circuit the terminals. When disposing of a used battery, do
not throw it into a fire.

Replace the battery as follows:

1. Turn off the power to the Unit. If the power is off to begin with, turn it on

and wait for at least 10 seconds. Then turn it off.

Replacing Parts Section 3–3

52

2. Using a Phillips screwdriver to loosen the 4 screws, remove the cover from

the Unit, lifting it from the left.

3. Pull the battery from the holder and install the new one within five minutes.

Battery in holder

4. Replace the cover, positioning it over the Unit and snapping it into place by

applying pressure to the area marked ”OMRON.”

5. Clear the ALARM on the Programming Console.

3–4 Preventive Measures

Load Circuit Fuses A fuse in the load circuit will protect the output elements, circuit board, etc., in

the event of a short in the output device.

Relay,
solenoid, etc.

+

OUT

COM

When two–wire sensors, such as photoelectric sensors and proximity sen­sors, or limit switches with neon lamp are connected to the CPU as input de­vices, the input signal may be erroneously turned ON by a leakage current
over 1.5 A. To prevent this, connect a bleeder resistor as shown below.

Determine the resistance of the bleeder resistor by the following equation,
where I is the leakage current.

Sensor

Input

Power

supply

Bleeder resistor

7.5 k

Ω max.

PC

R

R = 17.15/3.431 + 5 (k

Ω max.)

Likewise, if there is a danger of leakage current causing a transistor or triac
to malfunction, connect a bleeder resistor as shown below. Determine the
resistance of the bleeder resistor by the following equation.

Transistor

Triac

24 VDC

100 VAC

200 VAC

0.1 mA

2.0 mA

5.0 mA

R < Von/I

Von = ON voltage of the load (V)
I = leakage current (mA)
R = bleeder resistance (k

Ω)

L

Load power supply

OUT

COM

Bleeder resistor

Prevention of Input
Leakage Current

Prevention of Output
Leakage Current

Preventive Measures Section 3–4

53

When connecting the resistor or triac output to a device (such as an incan­descent lamp) which allows a high inrush current to flow, care must be taken
to ensure the safety of the transistor or triac. The transistors and triacs are
able to withstand an inrush current of ten times the rated current. If the actual
inrush current will exceed that amount, use one of the following two circuits
to reduce it.

This circuit allows a slight current
(about 1/3 of the rated current) to
flow through the load (i.e., the
lamp), thus eliminating any initial
surge of current.

This circuit acts directly on the
inrush current to limit it, but also
reduces the voltage across the
load.

L

+

OUT

COM

L

+

OUT

COM

When connecting TTL circuits to transistor outputs, it is necessary (because
of the transistor’s residual voltage) to connect a pull–up resistor and a CMOS
IC between the two.

When an inductive load is connected to the input or output of the CPU, it is
necessary to connect a surge suppressor or a diode in parallel with the load,
as shown below, to absorb the counter–electromotive force produced by the
load.

L

Surge supressor

OUT

COM

Relay, or triac

output

COM

IN

DC Input

L

Diode

L

OUT

COM

Relay, or transistor

output

+

Diode

Resistor: 50 Ω
Capacitor: 0.47 µF
Voltage: 200 V

Diode: Must withstand

voltages more
than three times
the load voltage
and an average
current of 1 A

Precautions for Inrush
Current

Transistor Output Residual
Voltage

Inductive Load Surge
Suppressors

Preventive Measures Section 3–4

54

Output Loads Be sure to take appropriate measures when any electrical device likely to

produce noise is connected to the CPU as a load. For example, electromag­netic relays and valves generating noise of more than 1,200 V require noise
suppression. For AC–operated noise sources, connect a surge suppressor in
parallel with the coil of each device. For DC–operated noise sources, con­nect a diode in parallel with the coil of each device. When mounting a CPU
and an Expansion I/O Unit on a control panel, be sure to completely ground
the intermediate mounting plate. The mounting plate must be finished with
high–conductivity plating to ensure noise immunity.

RR

–

+

Surge
suppressor

AC power source DC power source

Diode

3–5 Inspection

In order for your PC to continue operating at optimum condition, periodic in­spections are necessary. The main components of the PC are semiconduc­tors and have a long service life, but, depending on the operating environ­ment, there may be more or less deterioration of these and other parts. A
standard inspection schedule would be once every six months to one year,
but more frequent inspections may be advisable depending on the operating
environment. Try to maintain the inspection schedule once it has been set.

Check to be sure that the power supply, ambient temperature, humidity, and
so on, are within the specifications (see Appendix B). Be sure that there are
no loose screws in any of the Units and that all battery and cable connections
are secure. Clean any dust or dirt that has accumulated. Check all fuses, re­lays, and other replaceable parts.

Inspection Section 3–5

55

Appendix A

Standard Models

There are four K–type C–series CPUs. A CPU can be combined with any of
six types of Expansion I/O Unit and/or an Analog Timer, Analog I/O Unit, or
I/O Link Unit.

CPUs Expansion I/O Units

Analog Timer Unit

Analog I/O Units

I/O Link Unit

C20K–C_ _–_

C28K–C_ _–_

C40K–C_ _–_

C60K–C_ _–_

C4K–I_/O_ _

C4K–TM

C16P–I_–_/O_–_

C20P–E_ _–_

C28P–E_ _–_

C40P–E_ _–_

C60P–E_ _–_

C1K–AD/DA

C4K–AD

C4K–CN502
(included with Unit)

To order cable
separately, specify
C4K–CN502

5 cm or 40 cm
One included with
each Expansion I/O
Unit.
(C20P-CN501/411)

Cable (70 cm)
C20P–CN711
(ordered separately)

C20–LK011/LK011–P

C20K

C28K

C40K

C60K

C20P

C28P

C16P

C60P

C40P

C4K – AD

Standard Models Appendix A

56

CPUs

Name Power supply Inputs Outputs Model number

Standards

C20K 100 to 240 VAC 24 VDC, 12 pts Relay w/socket 8 pts C20K–CDR–A U, C

Transistor, 1 A C20K–CDT1–A –––

Triac, 1 A C20K–CDS1–A U, C

24 VDC, 2 pts

100 to 120 VAC,

10 pts

Relay w/socket C20K–CAR–A U, C

Triac, 1A C20K–CAS1–A U, C

24 VDC 24 VDC, 12 pts Relay w/socket C20K–CDR–D U, C

Transistor, 1 A C20K–CDT1–D –––

C28K 100 to 240 VAC 24 VDC, 16 pts Relay w/socket 12 pts C28K–CDR–A U, C

Transistor, 1 A C28K–CDT1–A –––

Triac, 1 A C28K–CDS1–A U, C

24 VDC, 2 pts

100 to 120 VAC,

14 pts

Relay w/socket C28K–CAR–A U, C

Triac, 1A C28K–CAS1–A U, C

24 VDC 24 VDC, 16 pts Relay w/socket C40K–CDR–D U, C

Transistor, 1 A C28K–CDT1–D –––

C40K 100 to 240 VAC 24 VDC, 16 pts Relay w/socket 16 pts C40K–CDR–A U, C

Transistor, 1 A C40K–CDT1–A –––

Triac, 1 A C40K–CDS1–A U, C

24 VDC, 2 pts Relay w/socket C40K–CAR–A C

100 VAC, 22 pts Triac, 1 A C40K–CAS1–A U, C

24 VDC 24 VDC, 24 pts Relay w/socket C40K–CDR–D U, C

Transistor, 1 A C40K–CDT1–D –––

Appendix AStandard Models

57

Name

Standards

Model numberOutputsInputsPower supply

C60K 100 to 240 VAC 24 VDC, 32 pts Relay w/socket 28 pts C60K–CDR–A U, C

Transistor, 1 A C60K–CDT1–A –––

Triac, 1 A C60K–CDS1–A U, C

24 VDC, 2 pts Relay w/socket C60K–CAR–A C

100 VAC, 30 pts Triac, 1 A C60K–CAS1–A U, C

24 VDC 24 VDC, 32 pts Relay w/socket C60K–CDR–D U, C

Transistor, 1 A C60K–CDT1–D –––

• U: UL, C: CSA, N: NK

See Omron sales representatives concerning operating conditions under which UL, CSA, and NK standards were met
(Aug. 1988).

I/O Units

Name Power Supply Inputs

Outputs Model Number

Standards

C4K I/O Unit ––– 24 VDC, 4 pts ––– 4 pts. C4K–ID U, C

100 to 120 VAC,

4 pts

––– C4K–IA U, C

––– Relay w/socket C4K–OR2 U, C

Transistor, 1 A C4K–OT2 U, C

Triac, 1A C4K–OS2 U, C

C16P I/O Unit 100 to 240 VAC 24 VDC, 16 pts ––– 16 pts C16P–ID–A U, C

––– Relay w/socket C16P–OR–A U, C

Transistor, 1 A C16P–OT1–A U, C

Triac, 1A C16P–OS1–A U, C

––– 24 VDC, 16 pts ––– C16P–ID U, C

100 to 120 VAC,

16 pts

––– C16P–IA U, C

24 VDC ––– Relay w/socket C16P–OR–D U

Transistor, 1 A C16P–OT1–D U

C20P I/O Unit 100 to 240 VAC 24 VDC, 12 pts Relay w/socket 8 pts C20P–EDR–A U, C, N

Transistor, 1 A C20P–EDT1–A N

Triac, 1A C20P–EDS1–A U, C, N

100 to 120 VAC,

12 pts

Relay w/socket C20P–EAR–A U, C, N

Triac, 1A C20P–EAS1–A U, C, N

24 VDC 24 VDC, 12 pts Relay w/socket C20P–EDR–D U, C, N

Transistor, 1 A C20P–EDT1–D –––

Standard Models Appendix A

58

Name Standards

Model NumberOutputs

InputsPower Supply

C28P I/O Unit 100 to 240 VAC 24 VDC, 16 pts Relay w/socket 12 pts C28P–EDR–A U, C, N

Transistor, 1 A C28P–EDT1–A N

Triac, 1A C28P–EDS1–A U, C, N

100 to 120 VAC,

16 pts

Relay w/socket C28P–EAR–A

U, C

Triac, 1A C28P–EAS1–A U, C, N

24 VDC 24 VDC, 16 pts Relay w/socket C28P–EDR–D U, C, N

Transistor, 1 A C28P–EDT1–D –––

C40P I/O Unit 100 to 240 VAC 24 VDC, 24 pts Relay w/socket 16 pts C40P–EDR–A U, C, N

Transistor, 1 A C40P–EDT1–A –––

Triac, 1A C40P–EDS1–A U, C, N

100 to 120 VAC,

24 pts

Relay w/socket C40P–EAR–A U, C, N

Triac, 1A C40P–EAS1–A U, C, N

24 VDC 24 VDC, 24 pts Relay w/socket C40P–EDR–D U, C, N

Transistor, 1 A C40P–EDT1–D –––

C60P I/O Unit 100 to 240 VAC 24 VDC, 32 pts Relay w/socket 28 pts C60P–EDR–A –––

Transistor, 1 A C60P–EDT1–A –––

Triac, 1A C60P–EDS1–A –––

100 VAC, 32 pts Relay w/socket C60P–EAR–A –––

Triac, 1A C60P–EAS1–A –––

24 VDC 24 VDC, 32 pts Relay w/socket C60P–EDR–D –––

Transistor, 1 A C60P–EDT1–D –––

• U: UL, C: CSA, N: NK

See Omron sales representatives concerning operating conditions under which UL, CSA, and NK standards were met
(Aug. 1988).

Appendix AStandard Models

59

Special Units

Name Specifications Model number Standards

Analog Timer Unit Settings: 0.1 s to 10 min (one cable, C4K–CN502, in-

cluded)

C4K–TM –––

Analog Timer External

Connector

2–m cable and connector C4K–CN223 –––

Analog Input Unit 1 input; input ranges: 4 to 20 mA, 1 to 5 V C1K–AD –––

4 inputs; input ranges: 4 to 20 mA, 1 to 5 V C4K–AD –––

Analog Output Unit 1 output; output ranges: 4 to 20 mA, 1 to 5 V C1K–DA –––

Host Link Unit RS–232C C20/C20K/C28K/C40K/C60K 3G2C7–LK201–EV1 –––

RS–422 3G2C7–LK202–EV1 –––

I/O Link Unit APF/PCF C20–LK011–P –––

PCF C20–LK011 –––

I/O Connecting Cable For horizontal mounting; cable length: 5 cm

(for maintenance)

C20P–CN501 –––

For vertical mounting; cable length: 40 cm

(for maintenance)

C20P–CN411 –––

I/O Connecting Cable For horizontal mounting; connects to

C4K I/O Units, Analog Timer Unit, or

Cable length:

5 cm

C4K–CN501 –––

Analog I/O Units (for maintenance)

Cable length:

50 cm

C4K–CN512 –––

Cable length:

1 m

C4K–CN122 –––

I/O Link Connecting

Cable

Cable length: 70 cm; for I/O Link Units only C20P–CN711 –––

EPROM 2764 ROM–H –––

Battery Set Built into CPU (same for all C–Series PCs) 3G2A9–BAT08 –––

Relay 24–VDC contact relay G6B–1174P–FD–US U, C

24–VDC transistor relay G3SD–Z01P–PD–US U, C

24–VDC triac relay G3S–201PL–PD–US U, C

• U: UL, C: CSA, N: NK

See Omron sales representatives concerning operating conditions under which UL, CSA, and NK standards were met
(Aug. 1988).

Standard Models Appendix A

60

DIN Products

Name Specifications Model number Standards

DIN Track Length: 50 cm Not usable with C60K PFP–50N

Length: 1 m PFP–100N –––

PFP–100N2

End Plate ––– PFP–M

Spacer ––– PFP–S

Factory Intelligent Terminal (FIT)

Name Specifications Model number Standards

FIT 1. FIT Computer

2. SYSMATE Ladder Pack (2 system disks, 1 data disk)

3. MS–DOS

4. GPC Communications Adapter (C500–IF001)

5. Peripheral Connecting Cable (3G2A2–CN221)

6. Power Cord and 3–pin/2–pin plug

7. Carrying Case

FIT10–SET11–E –––

Graphic Programming Console (GPC)

Name Specifications Model number Standards

GPC (LCD display) W/battery; power supply: 32 kw, 100 VAC; w/comments;

System Memory Cassette ordered separately.

3G2C5–GPC03–E

W/battery; power supply: 32 kw, 200 VAC; w/comments;
System Memory Cassette ordered separately.

3G2C5–GPC04–E

GPC Carrying Case W/side pocket for accessories C500–CS001

GPC System Memory
Cassette

For K–Type PCs W/comments 3G2C5–MP304–EV3

–––

Cassette Interface Unit Used to load programs in V8, M1R, M5R, POR, or S6

cassettes into the GPC and print them out through a
Printer Interface Unit.

3G2A5–CMT01–E

• U: UL, C: CSA, N: NK

See Omron sales representatives concerning operating conditions under which UL, CSA, and NK standards were met
(Aug. 1988).

Appendix AStandard Models

61

Peripheral Devices

Name Specifications Model number Standards

Programming Console Vertical, w/backlight 3G2A5–PRO13–E U, C

Horizontal, w/backlight 3G2A6–PRO15–E –––

Hand–Held, w/backlight. The Programming Console
Adapter AP003 and connecting cable CN222/CN422 are
necessary. They are sold separately.

C200H–PR027–E U, C

Programming Console
Mounting Bracket

Used to attach Hand–Held Programming Console to a
panel.

C200H–ATT01 –––

Programming Console For C20K/C28K/C40K/C60K 1 m 3G2C7–CN122 –––

Connecting Cables 50 cm 3G2C7–CN512 –––

For Hand–Held Programming Console 2 m C200H–CN222 U, C

4 m C200H–CN422 U, C

Programming Console
Adapter

Attached to PC when connecting Programming Console
via cable (for 3G2A5–PRO13–E or 3G2A6–PRO15–E).

3G2A5–AP001–E –––

Required to use Hand–Held Programming Console. 3G2A5–AP003 –––

Programming Console
Base

Attached to Programming Console when connecting Pro­gramming Console via cable.

3G2A5–BP001 –––

Cassette Recorder
Connecting Cable

Used to connect Programming Console, GPC, or
Cassette Deck Interface Unit to a cassette deck; length:
1 m.

SCYPOR–PLG01 –––

PROM Writer Used for all K–Type PCs. C500–PRW06 –––

Printer Interface Unit Interface for X–Y plotter or printer; System Memory

Cassette ordered separately.

3G2A5–PRT01–E –––

Memory Rack K–Type PCs w/comment printing function C500–MP102–EV3

K–Type PCs C20–MP009–EV3

Printer Connecting Cable 2 m (also used for X–Y plotter) SCY–CN201 –––

Floppy Disk Interface Unit C20K/C28K/C40K/C60K. GPC required; w/comment file;

able to connect to NEC floppy disk controller

3G2C5–FDI03–E –––

Peripheral Interface Unit To connect GPC or FIT to K–Type PCs 3G2C7–IP002–V2

Connecting Cable Used to connect FIT or GPC to

Peripheral Interface Unit and to

2 m 3G2A2–CN221 –––

connect Programming Console 5 m 3G2A5–CN523

Adapter and Programming Console 10 m 3G2A5–CN131

Base. 20 m 3G2A5–CN231

30 m 3G2A5–CN331

40 m 3G2A5–CN431

50 m 3G2A5–CN531

• U: UL, C: CSA, N: NK

See Omron sales representatives concerning operating conditions under which UL, CSA, and NK standards were met
(Aug. 1988).

63

Appendix B

Specifications

General Ratings

Supply voltage

Operating voltage range

Power consumption

24–VDC output *

Insulation resistance

Dielectric strength

Noise immunity

Vibration

Shock

Ambient temperature

Humidity

Grounding

Structure

Weight CPUs

Expan. I/O Units

Dimensions (CPUs and

Expan. I/O Units)

–A suffix: 100 to 240 VAC 50/60 Hz
–D suffix: 24 VDC

–A suffix: 85 to 264 VAC
–D suffix: 20.4 to 26.4 VDC

–A suffix: 60 VA max.
–D suffix: 40 W max.

0.3 A 24 VDC

±10% (Use as DC power supply)

10 M

Ω min. (at 500 VDC) betweeen AC terminals and housing

2,000 VAC 50/60 Hz for 1 minute (between AC terminals and housing)
500 VAC 50/60 Hz for 1 minute (between DC terminals and housing)

1,000 V p–p, pulse width: 100 ns to 1 µs, rise time 1 ns

10 to 35 Hz, 2 mm double amplitude, in X, Y, and Z directions; 2 hours each. (When
mounted on a DIN rail: 16.7 Hz, 1 mm double amplitude, in X, Y, and Z directions, 1 hour
each.)

10 G in X, Y, and Z directions, 3 times each

Operating: 0

° to 55°C

Storage: –20

° to 65°C

35% to 85% RH (without compensation)

Less than 100

Ω

IEC IP–30 (mounted in a panel)

C20K, C28K: 1.9 kg max; C40K: 2.2 kg max.; C60K: 2.6 kg max.
C20P, C28P: 1.7 kg max.; C40P: 2.0 kg max.; C60P: 2.4 kg max.

C20K, C28K: 250(w) x 110(h) x 100(d); C40K: 300(w) x 110(h) x 100(d);
C60K: 350(w) x 140 (h) x 100 (d)

* This output is not provided on models with the suffix –D in the model number (models accepting a DC supply voltage).

Specifications Appendix B

64

CPU Characteristics

MPU, C–MOS, LS–TTL

Ladder diagram

1 address/instruction, 6 bytes/instruction

49

10

µs/instruction (average)

1,194 addresses

136 (1000 to 1807)
1804 to 1806 are reserved for RDM: FUN60 if it is used.
1807 is reserved as software reset input for HDM: FUN 98 if it is used.

16 (1808 to 1907)
Normally–ON, normally–OFF, battery failure, initial cycle ON, 0.1–s pulse, 0.2–s pulse,

1.0–s pulse, etc.

160 (HR 000 to 915)

8 (TR0 to 7)

64 (DM words 00 to 63)
DM words 00 to 31 are reserved as upper and lower limit setting areas for RDM: FUN 60 if
it is used. DM words 32 to 63 are reserved as upper and lower limit setting areas for HDM:
FUN 61 if it is used.

48 (total of TIMs, CNTs, and CNTRs)
TIM 00 to 47 (0 to 999.9 s)
TIMH 00 to 47 (0 to 99.99 s)
CNT 00 to 47 (0 to 9999 counts)
CNTR 00 to 47 (0 to 9999 counts)
CNT 46 is used for RDM(60), and CNT 47 is used for HDM(61). When these instructions
are not used, CNT 46 and 47 can be used for other purposes.

Count input: 0000 High-speed counter specifications apply to
Hardware reset input: 0001 counters created with HDM(61) only.
Software inset: 1807
Maximum response frequency: 2 kHz
Preset count range: 0000 to 9999
Number of outputs: 16

Reset: 1804 Reversible drum counter specifications apply to
Count input: 1805 counters created with RDM(60) only.
Reverse input: 1806
Preset count range: 0000 to 9999
Number of outputs: 16

Status of HR bits, present value of counters, and contents of DM bits are retained during
power failure.

5 years at 25

°C

Battery life is shortened at temperatures higher than 25

°C. Replace battery with new one

within 1 week when ALARM indicator blinks.

CPU failure (watchdog timer)
Memory failure
I/O bus failure
Battery failure, etc.

Program check (executed on start of RUN operation)
END instruction missing
JMP–JME error
Coil duplication
Circuit error
DIFU/DIFD over error
IL/ILC error

Main control elements

Programming method

Instruction length

Number of instructions

Execution time

Memory capacity

IR bits

SR bits

HR bits

TM bits

DM words

Timer/counters

High–speed counter

Reversible drum counter

Memory protection

Battery life

Self–diagnostic features

Program check

Appendix BSpecifications

65

Input Specifications

DC input (photocoupler–isolated)

24 VDC ±10%

3 k

Ω

7 mA at 24 VDC

15 VDC min.

5 VDC max.

2.5 ms max. (input 0000 and 0001: 0.15 ms)

2.5 ms max. (input 0000 and 0001: 0.15 ms)

Supply voltage

Input voltage

Input current

ON voltage

OFF voltage

ON delay time

OFF delay time

AC input* (photocoupler–isolated)

100 to 120 VAC + 10%, –15% 50/60 Hz

9.7 k

Ω (50 Hz), 8 kΩ (60 Hz)

10 mA at 100 VAC

60 VAC min.

20 VAC max.

35 ms max.

55 ms max.

+

+ 24
VDC

IN

Internal
Circuit

Photocoupler

3 k

Ω

470 Ω

COM

IN

Internal
Circuit

Photocoupler

330

Ω

COM

100 to
120
VAC

330 k

Ω

180 Ω

0.33 µF

* Inputs 0000 and 0001 operate on DC input voltage. The circuit configuration of these two points is the same as the DC input circuit

shown above.

Note : The 24 VDC power source can be connected to either the positive or the negative terminal. Therefore both PNP input (negative

common) and NPN (positive common) can be used.

Output Specifications

24
VDC

COM

COM

Internal Circuit

X

OUT

L

250 VAC

Load power supply

L

Internal Circuit

OUT

Load power supply

+

5 to 24 VDC

L

COM

Internal Circuit

OUT

Load power supply

+

100 to 120/
200 to 240
VAC

Relay

(photocoupler–

isolated)

Transistor*

(photocoupler–

isolated)

Triac*

(photocoupler–

isolated)

ON–delay

15 ms max.

1.5 ms max.

1.5 ms max.

OFF–delay

15 ms max.

1.5 ms max.

1/2 of load

frequency +

1 ms max.

Circuit configuration

Max.

2 A at 250 VAC

2 A at 24 VDC

(p.f. 1)

0.5 A at 250 VAC

(p.f.0.4)

4 A/Common (4 points/Common)

6 A/Common (8 points/Common)

1 A/point at 5 to

24 VDC,

1.6 to 4 A/4 points

4 A/Common (4 points/Common)

6 A/Common (8 points/Common)

1 A/point at 85 to

250 VAC,

1.6 to 4 A/4 points

4 A/Common (4 points/Common)

6 A/Common (8 points/Common)

Min.

10 mA at

5 VDC

10 mA at

5 VDC,

saturation

voltage:

1.5 V max.

10 mA at

100 VAC,

20 mA at

200 VAC

Switching capacity

Specifications Appendix B

66

I/O Link Units

Supply voltage

Operating voltage range

Power consumption

Insulation resistance

Dielectric strength

Noise immunity

Vibration

Shock

Ambient temperature

Humidity

Grounding

Structure

Weight

Dimensions

100 to 120/200 to 240 VAC 50/60 Hz

85 to 132/ 170 to 264 VAC

15 VA max.

10 M

Ω min. (at 500 VDC) between AC terminals and housing

2,000 VAC 50/60 Hz for 1 minute (between AC terminals and housing)

1,000 V p–p, pulse width: 100 ns to 1

µs, rise time: 1 ns

10 to 35 Hz, 2 mm double amplitude, in X, Y, and Z directions, 2 hours each

10 G in X, Y, and Z directions, 3 times each

Operating: 0

° to 55°C

Storage: –20

° to 65°C

35% to 85% RH (without condensation)

Less than 100

Ω

IEC IP–30 (mounted in a panel)

1 kg max.

120(w) x 250(h) x 43(d)

Relay Service Life (at
Maximum Switching
Capacity)

Electical

Mechanical

300,000 operations [under resistive load (p.f. 1)]
100,000 operations [under inductive load (p.f. 0.4)]

50,000,000 operations

Transistor and Triac
Specifications

Max. switching capacity

Min. switching capacity

Leakage current

Residual voltage

ON–delay time

OFF–delay time

Transistor G3SD–Z01P–PD–US

1 A at 5 to 24 VDC

10 mA at 5 VDC

100

µA at 24 VDC

1.5 V max.

1.5 ms max.

1.5 ms max.

Triac G3S–201PL–PD–US

1 A at 85 to 250 VAC

10 mA at 100 VAC
20 mA at 200 VAC

2 mA at 100 VAC
5 mA at 200 VAC

1.5 V max.

1.5 ms max.

1/2 of load frequency + 1 ms max.

Do not mix output devices within the same common circuit.

Appendix BSpecifications

67

Transistor Inrush
Current

10 30 50 100 200 500 1000 5000

Current–carrying time (ms)

Inrush Current (A)

3

2

1

0

Transistor and Triac
Maximum Load Current

The maximum load current for the four common circuits varies with the ambi­ent temperature and is 4 to 1.6 A within a range of 20° to 55°C as shown be­low. Do not exceed the current value indicated in the chart at any given tem­perature.

Max. total current
of 4 circuits

6

5

4

3

2

1

0

20 40 55

Ambient temperature (

°C)

4 A

1.6 A

Ambient Temperature vs. Total Load Current of Each Common Circuit

Specifications Appendix B

68

Analog Timer Unit
Specifications

Bit

00

01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

Word n

Time–up contact T0

Time–up contact T1

Time–up contact T2

Time–up contact T3

Cannot be used

Word(n + 5)

T0 Start

T1 Start

T2 Start

T3 Start

T0 Pause

T1 Pause

T2 Pause

T3 Pause

T0 Range

T1 Range

T2 Range

T3 Range

Item

Oscillation method

Time setting range

Timer pause
function

Number of timer
contacts

Indicators

External variable
resistor

Point number
assignment

Programming and
timing chart

Specifications

RC oscillation

Use the program to set any of the following four ranges, according to the chart shown below.

0.1 to 1 second
1 to 10 seconds
10 to 60 seconds
1 to 10 minutes

The timing operation can be paused if so specified by theprogram. therefore, the timers can also
be used as cumulative timers.

4

SET and TIME UP

External variable resaistors can be used to set the time value when the IN/EXT selector is set to
EXT. Use 20 k

Ω external variable resistors

Word n “1” when time is up

Word (n + 5) “1” when time is set

0 Operates

1 Stops

Timer
no.

T0

T1

T2

T3

Bit

06

09

10

11

12

13

14

15

0.1 to
1 s

0

0

0

0

0

0

0

0

1 to
10 s

1

0

1

0

1

0

1

0

10 to
60 s

0

1

0

1

0

1

0

1

1 to
10 m

0

1

0

1

0

1

0

1

Word n 00 to 03

Timer start input

Timer up output

Timer start
00 to 03,
Word(n +1)

Time–up
Word n 00 to 03

Timer start
input

Timer–up
output

69

Appendix C

Programming Console Operations

Mode

Operation

Key Sequence

RUN MON. PROG.

Clearing
Memory

No No Yes

Setting
and
Reading
from
Program
Memory
Address

Yes Ye s Ye s

Checking
the
Program

No No Yes

Yes Ye s Ye s

Program
Searches

Inserting
and Delet­ing Instruc­tions

No No Yes

Programming Console Operations Appendix C

70

Mode

Operation Key Sequence

RUN MON. PROG.

Display­ing and
Clearing
Error
Messages

Yes Ye s Ye s

Bit/Digit
Monitor

Yes Ye s Ye s

Force Set/
Reset

No Yes Yes

Hexadeci­mal/BCD
Data Modifi­cation

No Yes Yes

Changing
Timer/
Counter
SV

No Yes No

Saving
Program
Memory
Data

No No Yes

No No YesRestoring or
Comparing
Program
Memory
Data

71

Area IR SR HR TR TC DM #

Bits/Words 0000 to 1807 1808 to 1907 HR 000 to 915 TR 0 to 7 TC 00 to 47 DM 00 to DM 63 0000 to 9999

or 0000 to FFFF

Appendix D

Programming Instructions

Ladder Diagram Instructions

Name

Mnemonic

Symbol Function Operands

Load

LD

LD B

Used to start instruction block with sta­tus of designated bit.

B:

IR
SR
HR
TC
TR

Load Inverse

LD NOT

LD NOT B

Used to start instruction block with in­verse of designated bit.

B:

IR
SR
HR
TC
TR

AND

AND

AND B

Logically ANDs status of designated bit
with execution condition.

B:

IR
SR
HR
TC
TR

AND Inverse

AND NOT

AND NOT B

Logically ANDs inverse of designated
bit with execution condition.

B:

IR
SR
HR
TC
TR

OR

OR

OR B

Logically ORs status of designated bit
with execution condition.

B:
IR
SR
HR
TC
TR

OR Inverse

OR NOT

OR NOT B

Logically ORs inverse of designated bit
with execution condition.

B:

IR
SR
HR
TC
TR

Block AND

AND LD

AND LD –

Logically ANDs results of preceding
blocks.

None

Programming Instructions Appendix D

72

Area IR SR HR TR TC DM #

Bits/Words 0000 to 1807 1808 to 1907 HR 000 to 915 TR 0 to 7 TC 00 to 47 DM 00 to DM 63 0000 to 9999

or 0000 to FFFF

Name

Mnemonic

OperandsFunctionSymbol

Block OR

OR LD

OR LD –

Logically ORs results of preceding
blocks.

None

Output

OUT

B

OUT B

Turns ON designated bit. B:

IR
HR
TR

Output
Inverse

OUT NOT

OUT NOT B

B

Turns OFF designated bit. B:

IR
HR
TR

Timer

TIM

TIM

TIM N

SV

N

SV

ON–delay (decrementing) timer opera­tion. Set value: 999.9 s; accuracy:
+0.0/–0.1 s. Same TC bit cannot be
assigned to more than one timer/count­er. The TC bit is input as a constant.

N:

TC

SV:
IR
HR
#

Counter

CNT

CNT N

SV

CNT

N

SV

A decrementing counter. SV: 0 to 9999;
CP: count pulse; R: reset input. The
TC bit is input as a constant.

N:

TC

SV:

IR
HR
#

Special Instructions

Name

Mnemonic

Symbol Function Operands

No Operation

NOP (00)

None

Nothing is executed and next instruc­tion is moved to.

None

End

END(01)

END(01)

Required at the end of the program. None

Interlock

IL(02)

Interlock
Clear

ILC(03)

IL(02)

ILC(03)

If interlock condition is OFF, all outputs
are turned OFF and all timer PVs reset
between this IL(02) and the next
ILC(03). Other instructions are treated
as NOP; counter PV are maintained.

None

Appendix DProgramming Instructions

73

Area IR SR HR TR TC DM #

Bits/Words 0000 to 1807 1808 to 1907 HR 000 to 915 TR 0 to 7 TC 00 to 47 DM 00 to DM 63 0000 to 9999

or 0000 to FFFF

Name

Mnemonic

OperandsFunctionSymbol

Jump

JMP(04)

Jump End

JME(05)

JMP(04)

JME(05)

Cause all instructions between
JMP(04) and the corresponding
JME(05) to be ignored. Corresponding
JME is next one in program; only 8
JMP–JME pairs allowed per program.

None

Single Step

STEP(08)

STEP(08) N

STEP(08)

Is used in the definition of program
sections. STEP N marks the beginning
of the section identified by N. STEP
without an operand indicates the end
of a series of program sections.

N:

HR

Step
Advance

SNXT(09)

SNXT(09) N

SNXT resets the timers and clears the
data areas used in the previous pro­gram section. SNTX must also be
present at the end of a series of pro­gram sections.

N:

HR

Shift
Register

SFT(10)

I

P

R

SFT(10)

St

E

Creates a bit shift register from the
starting word (St) through the ending
word (E). I: input bit; P: shift pulse; R:
reset input. St must be less than or
equal to E and Bg and E must be in the
same data area.

E

St

15 150

IN

0

St/E:

IR
HR

Latching
Relay

KEEP(11)

S

KEEP

B

R

Defines a bit (B) as a latch controlled
by set (S) and reset (R) inputs.

B:

IR
HR

Reversible
Counter

CNTR (12)

II

DI

R

N

SV

CNTR

Increases or decreases PV by one
whenever the increment input (II) or
decrement input (DI) signal goes from
OFF to ON. SV: 0 to 9999; R: reset in­put. Must not access the same TC bit
as another timer/counter. The TC bit is
input as a constant.

N:

TC

SV:

IR
HR
#

Differentiate
Up

DIFU(13)

Differentiate
Down

DIFD(14)

DIFU(13)

DIFD(14)

B

B

DIFU turns ON the designated bit (B)
for one cycle on the rising edge of the
input signal; DIFD turns ON the bit for
one cycle on the trailing edge. The
maximum number of DIFU/DIFDs is

48.

B:

IR
HR

High–speed
Timer

TIMH(15)

TI

TIMH

N

SV

A high–speed ON–delay (decrement­ing) timer. SV: 0.01 to 99.99 s; accura­cy: +0.00/–0.01 s. Must not be as­signed the same TC bit as another tim­er/counter. The TC bit is input as a
constant.

N:

TC

SV:
IR
HR
#

Programming Instructions Appendix D

74

Area IR SR HR TR TC DM #

Bits/Words 0000 to 1807 1808 to 1907 HR 000 to 915 TR 0 to 7 TC 00 to 47 DM 00 to DM 63 0000 to 9999

or 0000 to FFFF

Name

Mnemonic

OperandsFunctionSymbol

Word Shift

WSFT(16)

WSFT(16)
St
E

Shifts data between the start and end
words in word units.

St/E:

IR
HR
DM

Compare

CMP(20)

CMP(20)

Cp1
Cp2

Compares two sets of four–digit hexa­decimal data (Cp1 and Cp2) and out­puts result to GR, EQ, and LE.

Cp1/Cp2:

IR
SR
HR
TC
DM
#

Move

MOV(21)

MOV(21)

S
D

Transfers source data (S) (word or
four–digit constant) to destination word
(D).

S:

IR
SR
HR
TC
DM
#

D:

IR
HR
DM

Move Inverse

MVN(22)

MVN(22)

S
D

Inverts source data (S) (word or four–
digit constant) and then transfers it to
destination word(D).

S:

IR
SR
HR
TC
DM
#

D:

IR
HR
DM

BCD to
Binary

BIN(23)

BIN(23)

S
R

Converts four–digit, BCD data in
source word (S) into 16–bit binary
data, and outputs converted data to re­sult word (R).

S R

x10

0

x10

1

x10

2

x10

3

x16

0

x16

1

x16

2

x16

3

(BCD) (BIN)

S:

IR
SR
HR
TC
DM

R:

IR
HR
DM

Binary to
BCD

BCD(24)

BCD(24)

S
R

Converts binary data in source word (S)
into BCD, and outputs converted data to
result word (R).

x16

0

x16

1

x16

2

x16

3

x10

1

x10

2

x10

3

S R

(BIN) (BCD)

x10

0

S:

IR
SR
HR
DM

R:

IR
HR
DM

BCD Add

ADD(30)

ADD(30)

Au
Ad

R

CY CY

Adds two four–digit BCD values (Au
and Ad) and content of CY, and out­puts result to specified result word (R).

Au + Ad +

R

Au/Ad:

IR
SR
HR
TC
DM
#

R:

IR
HR
DM

Appendix DProgramming Instructions

75

Area IR SR HR TR TC DM #

Bits/Words 0000 to 1807 1808 to 1907 HR 000 to 915 TR 0 to 7 TC 00 to 47 DM 00 to DM 63 0000 to 9999

or 0000 to FFFF

Name

Mnemonic

OperandsFunctionSymbol

BCD
Subtract

SUB(31)

SUB(31)

Mi
Su

R

Subtracts both four–digit BCD subtra­hend (Su) and content of CY from
four–digit BCD minuend (Mi) and out­puts result to specified result word (R).

CY CYMi – Su

R

Mi/Su:

IR
SR
HR
TC
DM
#

R:

IR
HR
DM

BCD Multiply

MUL(32)

MUL(32)
Md
Mr
R

Multiplies a words data or a four–digit
BCD value(Md) and another words
data (Mr) and outputs the result to a
specified result word (R).

Md X Mr R

R + 1

Md/Mr:

IR
SR
HR
TC
DM
#

R:

IR
HR
DM

BCD Divide

DIV(33)

DIV(33)
Dd
Dr
R

Divides a words data or a four–digit
BCD dividend (Dd) and another words
data (Dr) and outputs result to speci­fied result word (R).

R

R + 1

Dd/Dr:

IR
SR
HR
TC
DM
#

R:

IR
HR
DM

Set Carry

STC(40)

STC(40)

Sets carry flag (i.e., turns CY ON). None

Clear Carry

CLC(41)

CLC(41)

CLC clears carry flag (i.e, turns CY
OFF).

None

Reversible
Drum Count­er

RDM(60)

RDM(60)

D

High–speed UP–DOWN counter oper­ation.

D:

IR
HR
DM

High–speed
Drum
Counter

HDM(61)

HDM(61)

D

A 2–kHz counter with both software
and hardware resets.

D:

IR
HR
DM

End Wait

ENDW(62)

ENDW(62)

N

Used to force a cycle time longer than
normal causing the CPU to wait.

N:

IR
HR
TC
DM
#

Network
Identifier

NETW(63)

NETW(63)
#

Used to leave comments in the pro­gram.

#

Programming Instructions Appendix D

76

Area IR SR HR TR TC DM #

Bits/Words 0000 to 1807 1808 to 1907 HR 000 to 915 TR 0 to 7 TC 00 to 47 DM 00 to DM 63 0000 to 9999

or 0000 to FFFF

Name

Mnemonic

OperandsFunctionSymbol

4 to 16
Decoder

MLPX(76)

MLPX(76)

S

Di

R

Converts up to four hexadecimal digits
in source word (S) into decimal values
from 0 to 15 and turns ON, in result
word(s) (R), bit(s) corresponding to
converted value. Digits designated in
Di digits (rightmost digit: first digit to be
converted; next digit to left: number of
digits to be converted minus 1).

S

3 2 1 030 to F

Di

S:

IR
SR
HR
TC
DM

Di:

IR
HR
TC
DM
#

R:

IR
HR
DM

16 to 4
Encoder

DMPX(77)

DMPX(77)

S
R

Di

Determines position of highest ON bit in
source word(s) (starting word: S) and
turns ON corresponding bit(s) in result
word (R). Digit designations made with Di
digits (rightmost digit: first digit to receive
converted value; next digit to left: number
of words to be converted minus 1).

.

S

15 0

3

0

R 3 2 1 0 0 to F

S:

IR
SR
HR
TC
DM

R:

IR
HR
DM

Di:

IR
HR
TC
DM
#

Reversible
Shift
Register

SFT(84)

SFTR(84)

C

St

E

Shifts data in a specified word or series
of words one bit to either the left or the
right.

St/E:

IR
HR
DM

C:

IR
HR
DM

Subroutine
Entry

SBS(91)

SBS(91) N

Transfers control of a program over to
a subroutine N.

N:

00 to 15

Subroutine
Definition
Start

SBN(92)

SBN(92) N

Indicates the beginning of a subroutine
definition.

N:

00 to 15

Subroutine
Definition
End

RET(93)

RET(93)

Indicates the end of a subroutine defi­nition.

None

I/O Refresh

IORF(97)

IORF(97)
St
E

Refreshes I/O words between a speci­fied range. Refreshes words in word
units.

St/E:

00 to 09

77

Appendix E

System Configuration Chart

A K-type PC can be configured with a CPU Unit and one or more of the following Units: Expansion I/O Units,
Analog Timer Units, or an I/O Link Unit. All of these Units are connected in series with the CPU Unit at one
end. An I/O Link Unit, if included, must be on the other end (meaning only one I/O Link Unit can be used) and
an Analog Timer Unit cannot be used. The rest of the Units can be in any order desired.

There is a restriction in the number of Units which can be included. To compute the number of Units for this
restriction, add up all of the Units counting the C40K CPU Unit, C60K CPU Unit, C40K Expansion I/O Unit and
C60K Expansion I/O Unit as two Units each and any other Units as one Unit each. This total must be no more
than five.

The following table shows some of the combinations that can be used to achieve specific numbers of I/O
points. The numbers in the table indicate the number of Units of that size to be used as either the CPU or Ex­pansion I/O Unit; any one of the Units can be the CPU Unit. This table does not include the C4P or C16P Ex­pansion I/O Units, the Analog Timer Unit, or the I/O Link Unit, which can be used for greater system versatility
or special applications. Refer to the remaining tables in this section for other combinations.

I/O points Count as 2

each

Count as 1

each

Total In Out

C60_

(32/28)

C40_

(24/16)

C28_

(16/12)

C20_
(12/8)

20 12 8 ––– ––– ––– 1

28 16 12 ––– ––– 1 –––

40 24 16

––– ––– ––– 2

––– 1 ––– –––

48 28 20 ––– ––– 1 1

56 32 24 ––– ––– 2 –––

60

32 28 1 ––– ––– –––

36 24

––– ––– ––– 3

––– 1 ––– 1

68 40 28

––– ––– 1 2

––– 1 1 –––

76 44 32 ––– ––– 2 1

80 48 32

––– ––– ––– 4

––– 1 ––– 2

––– 2 ––– –––

1 ––– ––– 2

84 48 36 ––– ––– 3 –––

88

48 40 1 ––– 1 –––

52 36

––– ––– 1 3

––– 1 1 1

96 56 40

––– ––– 2 2

––– 1 2 –––

100 56 44

1 ––– ––– 2

1 1 ––– –––

I/O points Count as 2

each

Count as 1

each

Total In Out

C60_

(32/28)

C40_

(24/16)

C28_

(16/12)

C20_
(12/8)

100 60 40

––– ––– ––– 5

––– 1 ––– 3

––– 2 ––– 1

104 60 44 ––– ––– 3 1

108

60 48 1 ––– 1 1

64 44

––– ––– 1 4

––– 1 1 2

––– 2 1 –––

112 64 48 ––– ––– 4 –––

116

64 52 1 ––– 2 –––

68 48

––– ––– 2 3

––– 1 2 1

120

64 56 2 ––– ––– –––

68 52

1 ––– ––– 3

1 1 ––– 1

124 72 52

––– ––– 3 2

––– 1 3 –––

128 72 56

1 ––– 1 2

1 1 1 –––

132 76 56 ––– ––– 4 1

136 76 60 1 ––– 2 1

140

76 64 2 ––– ––– 1

80 60 ––– ––– 5 –––

144 80 64 1 ––– 3 –––

148 80 68 2 ––– 1 –––

System Configuration Chart Appendix E

78

The tables on the following pages show the possible configurations for a K-type PC. Although the tables
branch to show the various possibilities at any one point, there can be no branching in the actual PC connec­tions. You can choose either branch at any point and go as far as required, i.e., you can break off at any point
to create a smaller PC System.When implementing a system there is a physical restriction on the total cable
length allowable. The sum of the lengths of all cables in the system must be limited to less than 1.2 meters.

The tables also show which words will be input words and which words will be output words. All of these are
determined by the position of the Unit in the configuration except for the C4P and C16P Expansion I/O Units,
in which case the model of the Unit determines whether the words are input or output.

The symbols used in the table represent the following:

C20K/C28K

Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU,

Input Output

C4K/C16P

In/Output

C40K/C60K

Input Output

Input Output

C20K or C28K CPU Unit

C40K or C60K CPU Unit

C4P or C16P Expansion I/O Unit

C20P Expansion I/O Unit, C28K Expansion I/O Unit,
Analog Timer Unit, or I/O Link Unit

C40P or C60P Expansion I/O Unit

Appendix ESystem Configuration Chart

79

C20K/C28K

Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C40P/C60P

Input Output Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C40P/C60P

Input Output Input Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

IR 00 IR 01 IR 02 IR 03 IR 04 IR 05 IR 06 IR 07 IR 08 IR 09

System Configuration Chart Appendix E

80

C20K/C28K

Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C40P/C60P

Input Output Input Output

C40P/C60P

Input Output Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

IR 00 IR 01 IR 02 IR 03 IR 04 IR 05 IR 06 IR 07 IR 08 IR 09

Appendix ESystem Configuration Chart

81

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C40K/C60K

Input Output

Input Output

C40K/C60K

Input Output

Input Output

C20P/C28P/TU/LU

Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C20P/C28P/TU/LU

Input Output

C40P/C60P

Input Output Input Output

C20P/C28P/TU/LU

Input Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

C4K/C16P

In/Output

IR 00 IR 01 IR 02 IR 03 IR 04 IR 05 IR 06 IR 07 IR 08 IR 09

83

Index

A

Analog Timer Units

connecting, 17
dimensions, 13
mounting, 12, 16
nomenclature, 5—7
specifications, 68
System configuration, 7

C

cable, 10

connection procedure, 18
I/O Connecting Cable, and CPU left/right selector, 4
I/O connecting cable

for Analog Timer Units, 17
for Expansion I/O Units, 17
for I/O Link Units, 17
types of, 16

optical fiber

connectors, 6, 44

types, 18
separation, 11
wiring ducts, 10, 11

CPU left/right selector, 4

CPUs

DIP switch, 41
I/O wiring, 22
mounting, 12, 14, 16
power supply, 19, 20
specifications, 63

D

dimensions

for mounting, 12—18
of Analog Timer Units, 13
of DIN rails, 14
of Expansion I/O Units, 12
of I/O Link Units, 13

DIN Rails

connecting Units, 16
dimensions, 14

DIP switch

on I/O Link Units, 43—45
on PCs, 3, 41, 43

E

emergency stop circuit, 39

environment

ambient temperature, 14, 54
humidity, 10, 54

specifications, 63
installation, 10
noise, 10, 18, 19, 54

specifications, 63
static electricity, 10

EPROM, See ROM, 3

errors

correction procedures, 48
hardware, 48
messages, 48
power failure, 41, 43
cycle time overrun, 48
self–diagnostic functions, 48
user–defined, 48

Expansion I/O Units

dimensions, 12
I/O wiring, 22
indicators, 4
mounting, 4, 12, 14, 16
nomenclature, 3—7
power supply, 19, 20, 29, 30, 31, 32, 33, 35
specifications, 63
System configuration, 7

F–H

fuses, 49—54

grounding, 20

high–speed counter, 22, 42

input terminals, 2
instruction, 2

I

I/O Link Units

connecting, 18
dimensions, 13
DIP switch, 43, 44
I/O wiring, 22
indicators, 6
mounting, 12
nomenclature, 6
power supply, 19
specifications, 66
System configuration, 7

Index

84

I/O points

assignment, 7
maximum number, 7

I/O wiring diagrams, 22—38

I/O words, assignment of, 43, 44

indicators

on Expansion I/O Units, 4
on PCs, 2

input devices, 22, 38

leakage current, 52

inrush current, 53

instruction set, table form, 71

interlock circuit, 40

L–O

Link Adapters, 6, 18

mounting

horizontal, 14, 15
screws, 16
space between Units, 14
vertical, 14, 15

nomenclature, 2—7

CPUs, 2—7

output devices, 22, 52

leakage current, 52
relays, 49, 50—54, 65
transistors, 22, 53, 65, 66
triacs, 65, 66

P

PCs

DIP switch, 3, 41, 43
indicators, 2
memory, 2
nomenclature, 2—7
power supply, 23, 24, 25, 26, 27, 28

power supply, 19, 20

batteries, 51
inspection, 54
specifications, 63
systems, wiring of, 40

programming, instruction table, 71

Programming Console, 48, 52, 69

R–S

RAM, 49

memory capacity, 2
usage, 2

Remote I/O Master Units, 6

Remote I/O Slave Units, 6

reset

hardware, 2, 22, 42
software, 42

ROM

EPROM installation, 3, 41, 42—45
memory capacity, 2
usage, 2

surge suppressors, 53

system configuration, 7

85

Revision History

A manual revision code appears as a suffix to the catalog number on the front cover of the manual.

Cat. No. W147-E1-2B

Revision code

The following table outlines the changes made to the manual during each revision. Page numbers refer to the
previous version.

Revision code Date Revised content

1 --- ---

2 April 1990 Changes made to pages 16, 39, 54, 68, 70

Put into the current manual format.
Some graphics were replaced with more detailed graphics.

2A May 1993 Pages ix and 7: Maximum number of I/O points possible corrected to 148.

Pages 16, 17, 55, and 59: C4K-CN502 corrected to C4K-CN501.

Page 61: PROM Writer model number updated to C500-PRW06.

Page 64: Instructions for which the high-speed counter and reversible drum

counter specifications are applicable were clarified.

Pages 77 and 78: Entire appendix was recreated and expanded.

2B August 1993 Scan time has been changed to cycle time throughout the manual.

Page 39: SR bit 1813 corrected from “open” to “closed” and the following
example corrected to “Normally ON.”

OMRON Corporation
Control Devices Division H.Q.

Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: [phone]/Fax: [phone]

Regional Headquarters

OMRON EUROPE B.V.

Wegalaan 67-69, NL-2132 JD Hoofddorp
The Netherlands
Tel: [phone]/Fax: [phone]

OMRON ELECTRONICS LLC

1 East Commerce Drive, Schaumburg, IL 60173
U.S.A.
Tel: [phone]/Fax: [phone]

OMRON ASIA PACIFIC PTE. LTD.

83 Clemenceau Avenue,
#11-01, UE Square,
Singapore 239920
Tel: [phone]/Fax: [phone]

OMRON (CHINA) CO., LTD.

Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120 China
Tel: [phone]/Fax: [phone]

Authorized Distributor:

Cat. No. W147-E1-02B Note: Specifications subject to change without notice.

This manual is printed on 100% recycled paper.

Printed in Japan