Omron CQM1, CPM1, CPM1A, SRM1 PROGRAMMING MANUAL

Cat. No. W228-E1-08

SYSMAC

CQM1/CPM1/CPM1A/SRM1

Programmable Controllers

PROGRAMMING

MANUAL

CQM1/CPM1/CPM1A/SRM1

Programmable Controllers

Programming Manual

Revised December 2005

iv

Notice:

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

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

!DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

!Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything else.

Visual Aids

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

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

1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

OMRON, 1993

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.

v

vi

TABLE OF CONTENTS

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xiii
1	Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiv
2	General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiv
3	Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiv
4	Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xv
5	Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xvi
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xix
SECTION 1
PC Setup and Other Features . . . . . . . . . . . . . . . . . . . . .		1
1-1	PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
1-2	Basic PC Operation and I/O Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
1-3	Pulse Output Function (CQM1 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	22
1-4	Pulse Output Function (CPM1A Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	35
1-5	CQM1 Interrupt Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	38
1-6	CPM1/CPM1A Interrupt Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	67
1-7	SRM1 Interrupt Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	85
1-8	CompoBus/S Distributed I/O Functions (SRM1 Only) . . . . . . . . . . . . . . . . . . . . .	88
1-9	Communications Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	89
1-10	Calculating with Signed Binary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	113
SECTION 2
Special Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		117
2-1	Expansion Instructions (CQM1/SRM1 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . .	118
2-2	Advanced I/O Instructions (CQM1 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	120
2-3	Macro Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	130
2-4	Differential Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	131
2-5	Analog Settings (CQM1-CPU42-EV1/CPM1/CPM1A Only) . . . . . . . . . . . . . . . .	132
2-6	Quick-response Inputs (CPM1/CPM1A Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . .	133
SECTION 3
Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		135
3-1	CQM1 Memory Area Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	136
3-2	CPM1/CPM1A Memory Area Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	142
3-3	SRM1 Memory Area Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	145
3-4	SRM1 Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	148
3-5	Using Memory Cassettes (CQM1 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	149
3-6	Operation without a Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	152
SECTION 4
Ladder-diagram Programming . . . . . . . . . . . . . . . . . . . .		155
4-1	Basic Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	156
4-2	Instruction Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	156
4-3	Basic Ladder Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	157
4-4	Controlling Bit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	177
4-5	Work Bits (Internal Relays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	179
4-6	Programming Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	181
4-7	Program Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	183

vii

TABLE OF CONTENTS

SECTION 5
Instruction Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		185
5-1	Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	188
5-2	Instruction Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	188
5-3	Data Areas, Definer Values, and Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	188
5-4	Differentiated Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	190
5-5	Coding Right-hand Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	191
5-6	Instruction Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	194
5-7	Ladder Diagram Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	200
5-8	Bit Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	201
5-9	NO OPERATION – NOP(00) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	205
5-10	END – END(01) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	205
5-11	INTERLOCK and INTERLOCK CLEAR – IL(02) and ILC(03). . . . . . . . . . . . .	205
5-12	JUMP and JUMP END – JMP(04) and JME(05) . . . . . . . . . . . . . . . . . . . . . . . . .	207
5-13	User Error Instructions:
	FAILURE ALARM AND RESET – FAL(06) and
	SEVERE FAILURE ALARM – FALS(07) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	209
5-14	Step Instructions:
	STEP DEFINE and STEP START–STEP(08)/SNXT(09) . . . . . . . . . . . . . . . . . .	210
5-15	Timer and Counter Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	212
5-16	Shift Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	229
5-17	Data Movement Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	237
5-18	Comparison Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	248
5-19	Conversion Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	258
5-20	BCD Calculation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	285
5-21	Binary Calculation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	296
5-22	Special Math Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	307
5-23	Logic Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	316
5-24	Increment/Decrement Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	319
5-25	Subroutine Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	321
5-26	Special Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	323
5-27	Communications Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	349
5-28	Advanced I/O Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	354
SECTION 6
Host Link Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .		359
6-1	Communications Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	360
6-2	Command and Response Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	362
6-3	Host Link Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	366
SECTION 7
PC Operations and Processing Time . . . . . . . . . . . . . . . .		391
7-1	CQM1 Cycle Time and I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	392
7-2	CPM1/CPM1A Cycle Time and I/O Response Time . . . . . . . . . . . . . . . . . . . . . .	410
7-3	SRM1 Cycle Time and I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	422

viii

TABLE OF CONTENTS

SECTION 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		433
8-1	Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	434
8-2	Programming Console Operation Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	434
8-3	Programming Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	435
8-4	User-defined Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	436
8-5	Operating Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	437
8-6	Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	441
8-7	Host Link Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	442
8-8	Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	444
Appendices
A	Programming Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	451
B	Error and Arithmetic Flag Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	457
C	Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	461
D	Using the Clock Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	479
E	I/O Assignment Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	481
F	Program Coding Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	483
G	List of FAL Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	487
H	Extended ASCII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	489
I	CPM1/CPM1A and CQM1 Memory Area Comparison . . . . . . . . . . . . . . . . . . . .	491
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		493
Index. .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	509
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		517

ix

About this Manual:

This manual describes programming of the CQM1, CPM1, CPM1A, and SRM1 Programmable Controllers, including memory structure, memory contents, ladder-diagram instructions, etc., and includes the sections described below. Refer to the CQM1 Operation Manual, CPM1 Operation Manual, CPM1A Operation Manual, and SRM1 Master Control Units Operation Manual for hardware information and Programming Console operating procedures. Refer to the SSS Operation Manual: C-series PCs for SSS operating procedures.

Note The SRM1 is a specialized programmable controller and is normally called a CompoBus/S Master Control Unit. The SRM1, however, is programmed in the same way as the other Programmable Controllers and it is treated and referred to as a PC in this manual.

Please read this manual carefully and be sure you understand the information provided before attempting to program and operate the CQM1, CPM1, CPM1A or SRM1.

Section 1 explains the PC Setup and related PC functions, including interrupt processing and communications. The PC Setup can be used to control the operating parameters of the PC.

Section 2 provides an introduction to new PC features, including the new instructions available through expansion instructions and a new monitoring feature call differential monitoring.

Section 3 describes the structure of the PC’s memory areas, and explains how to use them. It also describes Memory Cassette operations used to transfer data between the CQM1 and a Memory Cassette.

Section 4 explains the basic steps and concepts involved in writing a basic ladder diagram program. It introduces the instructions that are used to build the basic structure of the ladder diagram and control its execution.

Section 5 individually describes the ladder-diagram programming instructions that can be used with the PC.

Section 6 explains the methods and procedures for using host link commands, which can be used for host link communications via the PC ports.

Section 7 explains the internal processing of the PCs, and the time required for processing and execution. Refer to this section to gain an understanding of the precise timing of PC operation.

Section 8 describes how to diagnose and correct the hardware and software errors that can occur during PC operation.

The following appendices are also provided: A Programming Instructions, B Error and Arithmetic Flag Operation, C Memory Areas, D Using the Clock Function, E I/O Assignment Sheet, F Program Coding Sheet, G List of FAL Numbers, H Extended ASCII, and I CPM1A and CPM1 Memory Area Comparison.

!WARNING Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

xi

PRECAUTIONS

This section provides general precautions for using the Programmable Controller (PC) and related devices.

The information contained in this section is important for the safe and reliable application of the Programmable Controller. You must read this section and understand the information contained before attempting to set up or operate a PC system.

1	Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiv
2	General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiv
3	Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiv
4	Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xv
5	Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xvi
6	Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xix

xiii

Intended Audience

1

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

•Personnel in charge of installing FA systems.

•Personnel in charge of designing FA systems.

•Personnel in charge of managing FA systems and facilities.

2 General Precautions

The user must operate the product according to the performance specifications described in the operation manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for programming and operating the Unit. Be sure to read this manual before attempting to use the Unit and keep this manual close at hand for reference during operation.

!WARNING It is extremely important that a PC and all PC Units be used for the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PC System to the above-mentioned applications.

3 Safety Precautions

!WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing so may result in electric shock.

!WARNING Do not touch any of the terminals while the power is being supplied. Doing so may result in electric shock.

!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.

!Caution Tighten the screws on the terminal block of the AC Power Supply Unit to the torque specified in the manual. Loose screws may result in burning or malfunction.

!Caution Execute online edit only after confirming that no adverse effects will be caused by extending the cycle time. Otherwise, the input signals may not be readable.

xiv

Operating Environment Precautions

4

!Caution Confirm safety at the destination node before transferring a program to another node or changing the I/O memory area. Doing either of these without confirming safety may result in injury.

!Caution When connecting the PC to a personal computer or other peripheral device, either ground the 0-V side of the PC or do not ground the PC at all. Although some grounding methods short the 24-V side, as shown in the following diagram, never do so with the PC.

INCORRECT Grounding: Shorting the 24-V side of the Power Supply

Non-isolated DC power

supply

24 V

0 V	0 V
	0 V
PC	Peripheral device

4 Operating Environment Precautions

!Caution Do not operate the control system in the following locations:

•Locations subject to direct sunlight.

•Locations subject to temperatures or humidity outside the range specified in the specifications.

•Locations subject to condensation as the result of severe changes in temperature.

•Locations subject to corrosive or flammable gases.

•Locations subject to dust (especially iron dust) or salts.

•Locations subject to exposure to water, oil, or chemicals.

•Locations subject to shock or vibration.

!Caution Take appropriate and sufficient countermeasures when installing systems in the following locations:

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

•Locations subject to strong electromagnetic fields.

•Locations subject to possible exposure to radioactivity.

•Locations close to power supplies.

!Caution The operating environment of the PC System can have a large effect on the longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PC System. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.

xv

Application Precautions

5

5 Application Precautions

Observe the following precautions when using the PC System.

!WARNING Always heed these precautions. Failure to abide by the following precautions could lead to serious or possibly fatal injury.

•Always ground the system to 100 Ω or less when installing the Units. Not connecting to a ground of 100 Ω or less may result in electric shock.

•Always turn OFF the power supply to the PC before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock.

•Mounting or dismounting Power Supply Units, I/O Units, CPU Units, Memory Cassettes, or any other Units.

•Assembling the Units.

•Setting DIP switches or rotary switches.

•Connecting or wiring the cables.

•Connecting or disconnecting the connectors.

!Caution Failure to abide by the following precautions could lead to faulty operation of the PC or the system, or could damage the PC or PC Units. Always heed these precautions.

•Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.

•Interlock circuits, limit circuits, and similar safety measures in external circuits (i.e., not in the Programmable Controller) must be provided by the customer.

•Always use the power supply voltage specified in the manual. An incorrect voltage may result in malfunction or burning.

•Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied. Be particularly careful in places where the power supply is unstable. An incorrect power supply may result in malfunction.

•Install external breakers and take other safety measures against short-cir- cuiting in external wiring. Insufficient safety measures against short-cir- cuiting may result in burning.

•Do not apply voltages to the Input Units in excess of the rated input voltage. Excess voltages may result in burning.

•Do not apply voltages or connect loads to the Output Units in excess of the maximum switching capacity. Excess voltage or loads may result in burning.

•Disconnect the functional ground terminal when performing withstand voltage tests. Not disconnecting the functional ground terminal may result in burning.

•Install and wire the Unit properly as specified in the manual. Improper installation of the Unit may result in malfunction.

•Be sure that all the mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in the relevant manuals. Incorrect tightening torque may result in malfunction.

xvi

Application Precautions

5

•Leave the label attached to the Unit when wiring. Removing the label may result in malfunction.

•Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction.

•Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Connection of bare stranded wires may result in burning.

•Double-check all the wiring before turning ON the power supply. Incorrect wiring may result in burning.

•Mount the Unit only after checking the terminal block completely.

•Be sure that the terminal blocks, Memory Units, expansion cables, and other items with locking devices are properly locked into place. Improper locking may result in malfunction.

•Check the user program for proper execution before actually running it on the Unit. Not checking the program may result in an unexpected operation.

•Confirm that no adverse effect will occur in the system before attempting any of the following. Not doing so may result in an unexpected operation.

•Changing the operating mode of the PC.

•Force-setting/force-resetting any bit in memory.

•Changing the present value of any word or any set value in memory.

•Resume operation only after transferring to the new CPU Unit the contents of the DM and HR Areas required for resuming operation. Not doing so may result in an unexpected operation.

•Do not place objects on top of the cables. Doing so may break the cables.

•Before touching the Unit, be sure to first touch a grounded metallic object in order to discharge any static built-up. Not doing so may result in malfunction or damage.

•Do not touch the Expansion I/O Unit Connecting Cable while the power is being supplied in order to prevent any malfunction due to static electricity.

•When replacing parts, be sure to confirm that the rating of a new part is correct. Not doing so may result in malfunction or burning.

!Caution Always clear memory before beginning to program the CPM1, CPM1A or SRM1. Although memory is cleared before the CPU Unit is shipped (except for bits with specific functions), AR 1314, which turns ON when the internal capacitor cannot back up memory, may have turned ON during shipment.

!Caution If the CPM1 or CPM1A will be turned OFF for periods exceeding the data backup period of the internal capacitor, design the system so that it will not be influenced if data in the DM, HR, and CNT areas is cleared when power is turned OFF.

!Caution Either switch the CPM1 or CPM1A to RUN or MONITOR mode, or turn OFF and ON power to the CPM1 or CPM1A after changing from a Programming Device any data that is backed up in flash memory. This data includes the user program, read-only DM area (DM 6144 to DM 6599), and the PC Setup (DM 6600 to DM 6655).

xvii

Application Precautions

5

• The user program and memory area data in the CPM1 or CPM1A are backed up either by an internal capacitor or in flash memory as shown in the following table.

Backup method	Data
Internal capacitor	Read/write DM area (DM 0000 to DM 0999, DM 1022, and
	DM 1023)
	Error log area (DM 1000 to DM 1021)
	HR area (HR 00 to HR 19)
	Counter area (CNT 000 to CNT 127)
Flash memory	User program
	Read-only DM area (DM 6144 to DM 6599)
	PC Setup (DM 6600 to DM 6655)

Note 1. The IR, TR, LR, and timer areas are not normally backed up when power is turned OFF and all contents will be cleared the next time power is turned ON. (The PC Setup setting in DM 6601 can be used to back up this data. Refer to details on the PC Setup later in this manual for details.)

2.The bits in the AR and SR areas have special functions and are set according to these functions when power is turned ON.

•The capacitor backup time depends on the ambient temperature, as shown in the following graph. The backup time, however, assumes that the capacitor is fully charged, which requires that power be supplied to the CPU Unit continuously for at least 15 minutes.

Backup time (days)

20

10

7

1

25 40 80 Ambient temperature (°C)

If the power remains OFF for a period exceeding the data backup period, AR 1314 will turn ON to indicate that the capacitor can no longer back up data and the data backed up by the capacitor will be cleared. AR 1314 will remain ON unless it is turned OFF using I/O monitor operations, using memory clear operations, or from the user program.

If desired, the PC Setup setting in DM 6604 can be set to create a fatal error and thus stop the system when AR 1314 goes ON.

•The data stored in flash memory will not be lost even if power remains OFF for a period exceeding the data backup period, because the data stored in flash memory will be read to the CPU Unit when the CPM1 or CPM1A is turned ON.

•If the power is turned OFF without changing the mode from PROGRAM mode to RUN or MONITOR mode after having made changes in the data

that is backed up in flash memory, the changes will not be written to flash memory. If the power is then left OFF for more than 20 days (at 25°C), the

xviii

Conformance to EC Directives

6

changes (i.e., the contents of the RAM) will be erased and the data values will become undefined.

!Caution Be sure that the SRM1 system is not influenced by any undefined data if the data in the DM, HR, or CNT area is cleared when the SRM1 has been turned OFF for a period exceeding the data backup period of the internal lithium battery. If the AR 1414 flag is ON, the data will be held unless it is turned OFF using the I/O Monitor operation, instructions, etc. The system can be stopped by designating DM 6604 in the PC Setup so that a memory error occurs when the power interruption hold area is not held (with AR 1314 ON)

• A lithium battery in the CPU Unit is used to back up the counter values and the contents of the DM area, and HR area. The deterioration of the lithium battery capacity depends on the ambient temperature. The standard service life is 12 years at an ambient temperature of 40°C when operating 8 hours a day.

If the power remains off for a period exceeding the data backup period, the contents of the Data Memory (DM), Hold Relay (HR), and Counter (CNT) Areas in the CPU Unit may be cleared and the AR 1314 flag (which turns ON when the power interruption hold area is not held) may turn ON.

If the contents of the CPU Unit’s program area are lost, the program stored in flash memory will be read to the CPU Unit’s program area when the SRM1 is started up because the contents in the read-only area (DM 6144 through DM 6599) and PC Setup (DM 6600 through DM 6655) will be written to flash memory.

• However, if the power is turned OFF without changing the mode even if changes are made in the read-only DM area (DM 6144 through DM 6599), or PC Setup (DM 6600 through DM 6655) using a peripheral device, the contents of changes will not be written to flash memory. Although the data in these areas is backed up by the lithium battery, contents of changes will disappear if the service life of the lithium battery expires. In this case, programs in the flash memory will be automatically read into the user program memory.

The changes can be saved by switching the SRM1 to RUN or MONITOR mode or turning OFF and restarting the SRM1 soon after the changes are made.

6 Conformance to EC Directives

The CQM1 PCs comply with EC Directives. To ensure that the machine or device in which a CQM1 PC is used complies with EC Directives, the PC must be installed as follows:

1,2,3... 1. The PC must be installed within a control panel.

2.Reinforced insulation or double insulation must be used for the DC power supplies used for the communications and I/O power supplies.

3.PCs complying with EC Directives also conform to the Common Emission Standard (EN50081-2). When a PC is built into a machine, however, noise can be generated by switching devices using relay outputs and cause the overall machine to fail to meet the Standard. If this occurs, surge killers must be connected or other measures taken external to the PC.

The following methods represent typical methods for reducing noise, and may not be sufficient in all cases. Required countermeasures will vary de-

xix

Conformance to EC Directives

6

pending on the devices connected to the control panel, wiring, the configuration of the system, and other conditions.

Determining if Countermeasures Are Required

Refer to EN50081-2 for more details.

Countermeasures are not required if the frequency of load switching for the whole system including the PC is less than 5 times per minute.

Countermeasures are required if the frequency of load switching for the whole system including the PC is more than 5 times per minute.

Countermeasure Examples

When switching an inductive load, connect an surge protector, diodes, etc., in parallel with the load or contact as shown below.

Circuit

Current

Characteristic

Required element

AC

DC

CR method

Yes

Yes

If the load is a relay or solenoid, there

The capacitance of the capacitor must

is a time lag between the moment the

be 1 to 0.5 µF per contact current of

circuit is opened and the moment the

1 A and resistance of the resistor must

load is reset.

be 0.5 to 1 Ω per contact voltage of 1 V.

Inductive load

insert the surge protector in parallel

load and the characteristics of the

If the supply voltage is 24 or 48 V,

These values, however, vary with the

Power

with the load. If the supply voltage is

relay. Decide these values from testing,

supply

and take into consideration that the

100 to 200 V, insert the surge protector

between the contacts.

capacitance suppresses spark dis-

charge when the contacts are sepa-

rated and the resistance limits the

current that flows into the load when

the circuit is closed again.

The dielectric strength of the capacitor

must be 200 to 300 V. If the circuit is an

AC circuit, use a capacitor with no

polarity.

Diode method

No

Yes

The diode connected in parallel with

The reversed dielectric strength value

the load changes energy accumulated

of the diode must be at least 10 times

by the coil into a current, which then

as large as the circuit voltage value.

Power

Inductive load

resistance of the inductive load.

current.

flows into the coil so that the current

The forward current of the diode must

supply

will be converted into Joule heat by the

be the same as or larger than the load

This time lag, between the moment the

The reversed dielectric strength value

circuit is opened and the moment the

of the diode may be two to three times

load is reset, caused by this method is

larger than the supply voltage if the

longer than that caused by the CR

surge protector is applied to electronic

method.

circuits with low circuit voltages.

Varistor method	Yes	Yes	The varistor method prevents the impo-	---
			sition of high voltage between the con-
			tacts by using the constant voltage
Power	Inductive load		characteristic of the varistor. There is
			cuit is opened and the moment the load
			time lag between the moment the cir-
supply			is reset.

If the supply voltage is 24 or 48 V, insert the varistor in parallel with the load. If the supply voltage is 100 to 200 V, insert the varistor between the contacts.

When switching a load with a high inrush current, such as an incandescent lamp, suppress the inrush current as shown below.

xx

Conformance to EC Directives	6
Countermeasure 1	Countermeasure 2
	R
OUT	OUT
R
COM	COM
Providing a dark current of approx.	Providing a limiting resistor
one-third of the rated value
through an incandescent lamp

xxi

Conformance to EC Directives

6

xxii

SECTION 1

PC Setup and Other Features

This section explains the PC Setup and other CQM1/CPM1/CPM1A/SRM1 features, including interrupt processing and communications. The PC Setup can be used to control the operating parameters of the CQM1/CPM1/CPM1A/SRM1. To change the PC Setup, refer to the CQM1 Operation Manual, CPM1 Operation Manual, CPM1A Operation Manual or SRM1 Master Control Units Operation Manual for Programming Console procedures. Refer to the SSS Operation Manual: C-series PCs for SSS procedures.

If you are not familiar with OMRON PCs or ladder diagram program, you can read 1-5 PC Setup as an overview of the operating parameters available for the CQM1/CPM1/CPM1A/SRM1, but may then want to read SECTION 3 Memory Areas, SECTION 4 Ladder-diagram Programming, and related instructions in Section SECTION 5 Instruction Set before completing this section.

1-1	PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		3
	1-1-1	Changing the PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
	1-1-2	CQM1 PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
	1-1-3	CPM1/CPM1A PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . .	9
	1-1-4	SRM1 PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	13
1-2 Basic PC Operation and I/O Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			16
	1-2-1	Startup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
	1-2-2	Hold Bit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
	1-2-3	Program Memory Write-protection (CPM1/CPM1A Only). . . . . . .	17
	1-2-4	RS-232C Port Servicing Time (CQM1/SRM1 Only). . . . . . . . . . . .	18
	1-2-5	Peripheral Port Servicing Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
	1-2-6	Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
	1-2-7	Input Time Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
	1-2-8	High-speed Timers (CQM1 Only) . . . . . . . . . . . . . . . . . . . . . . . . . .	20
	1-2-9	DSW(87) Input Digits & Output Refresh Method (CQM1 Only) . .	21
	1-2-10	Error Log Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
1-3 Pulse Output Function (CQM1 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			22
	1-3-1	Types of Pulse Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	22
	1-3-2	Standard Pulse Output from an Output Point . . . . . . . . . . . . . . . . . .	23
	1-3-3	Standard Pulse Output from Ports 1 and 2 . . . . . . . . . . . . . . . . . . . .	25
	1-3-4	Variable-duty-ratio Pulse Output from Ports 1 and 2 . . . . . . . . . . . .	32
	1-3-5	Determining the Status of Ports 1 and 2 . . . . . . . . . . . . . . . . . . . . . .	34
1-4 Pulse Output Function (CPM1A Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			35
	1-4-1	Programming Example in Continuous Mode . . . . . . . . . . . . . . . . . .	36
	1-4-2	Programming Example in Independent Mode . . . . . . . . . . . . . . . . .	36
	1-4-3	Using Pulse Output Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .	36
	1-4-4	Changing the Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	37
	1-4-5	Stopping Pulse Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	37
1-5	CQM1 Interrupt Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		38
	1-5-1	Types of Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	38
	1-5-2	Input Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
	1-5-3	Masking All Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	44
	1-5-4	Interval Timer Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	45
	1-5-5	High-speed Counter 0 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . .	47
	1-5-6	High-speed Counter 0 Overflows/Underflows . . . . . . . . . . . . . . . . .	53
	1-5-7	High-speed Counter 1 and 2 Interrupts (CQM1-CPU43-EV1) . . . .	55
	1-5-8	Absolute High-speed Counter Interrupts (CQM1-CPU44-EV1) . . .	62

1

1-6	CPM1/CPM1A Interrupt Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		67
	1-6-1	Types of Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	67
	1-6-2	Input Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	69
	1-6-3	Masking All Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	74
	1-6-4	Interval Timer Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	75
	1-6-5	High-speed Counter Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	77
1-7	SRM1 Interrupt Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		85
	1-7-1	Types of Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	85
	1-7-2	Interval Timer Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	85
1-8	CompoBus/S Distributed I/O Functions (SRM1 Only). . . . . . . . . . . . . . . . . .		88
1-9	Communications Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		89
	1-9-1	CQM1 PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	90
	1-9-2	Wiring Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	93
	1-9-3	CQM1 Host Link Communications . . . . . . . . . . . . . . . . . . . . . . . . .	93
	1-9-4	CPM1/CPM1A Host Link Communications. . . . . . . . . . . . . . . . . . .	95
	1-9-5	SRM1 Host Link Communications . . . . . . . . . . . . . . . . . . . . . . . . . .	97
	1-9-6	RS-232C Communications (CQM1/SRM1 Only) . . . . . . . . . . . . . .	100
	1-9-7	CQM1 One-to-one Link Communications . . . . . . . . . . . . . . . . . . . .	102
	1-9-8	CPM1/CPM1A One-to-one Link Communications . . . . . . . . . . . . .	104
	1-9-9	CPM1/CPM1A NT Link Communications. . . . . . . . . . . . . . . . . . . .	105
	1-9-10	SRM1 One-to-one Link Communications . . . . . . . . . . . . . . . . . . . .	106
	1-9-11	SRM1 NT Link Communications . . . . . . . . . . . . . . . . . . . . . . . . . . .	108
	1-9-12	SRM1 No Protocol Communications . . . . . . . . . . . . . . . . . . . . . . . .	109
	1-9-13	Transmission Data Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .	111
	1-9-14	Transmission Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	112
	1-9-15	No Protocol Communications Program Example . . . . . . . . . . . . . . .	112
1-10	Calculating with Signed Binary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		113
	1-10-1	Definition of Signed Binary Data . . . . . . . . . . . . . . . . . . . . . . . . . . .	113
	1-10-2	Arithmetic Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	115
	1-10-3	Inputting Signed Binary Data Using Decimal Values . . . . . . . . . . . .	115
	1-10-4	Using Signed-binary Expansion Instructions (CQM1 Only) . . . . . .	115
	1-10-5	Application Example Using Signed Binary Data . . . . . . . . . . . . . . .	116

2

PC Setup

Section 1-1

1-1 PC Setup

	The PC Setup comprises various operating parameters that control CQM1/
	CPM1/CPM1A/SRM1 operation. In order to make the maximum use of
	CQM1/CPM1/CPM1A/SRM1 functionality when using interrupt processing
	and communications functions, the PC Setup may be customized according
	to operating conditions.
	At the time of shipping, the defaults are set for general operating conditions,
	so that the CQM1/CPM1/CPM1A/SRM1 can be used without having to
	change the settings. You are, however, advised to check the default values
	before operation.
Default Values	The default values for the PC Setup are 0000 for all words. The default values
	can be reset at any time by turning ON SR 25210.
	!Caution When data memory (DM) is cleared from a Programming Device, the PC
	Setup settings will also be cleared to all zeros.

1-1-1 Changing the PC Setup

Making Changes from a Peripheral Device

PC Setup settings are accessed at various times depending on the setting, as described below.

• DM 6600 to DM 6614: Accessed only when PC’s power supply is turned on.

•DM 6615 to DM 6644: Accessed only when program execution begins.

•DM 6645 to DM 6655: Accessed regularly when the power is on.

Since changes in the PC Setup become effective only at the times given above, the CQM1/CPM1/CPM1A/SRM1 will have to be restarted to make changes in DM 6600 to DM 6614 effective, and program execution will have to be restarted to make changes in DM 6615 to DM 6644 effective.

When DM 6602 bits 00 to 03 are set to protect the program memory, DM 6602 cannot be changed using the PC Setup operation of the Support Software. To change DM 6602, use the I/O Monitor or DM Edit operation.

The PC Setup can be read, but not written into, from the user program. Writing can be done only by using a Programming Device.

Although the PC Setup is stored in DM 6600 to DM 6655, settings can be made and changed only from a Programming Device (e.g., SSS, or Programming Console). DM 6600 to DM 6644 can be set or changed only while in PROGRAM mode. DM 6645 to DM 6655 can be set or changed while in either PROGRAM mode or MONITOR mode.

The following settings can be made in PROGRAM mode from the SSS using menu operations. All other settings must be made using the hexadecimal setting operation.

•Startup Mode (DM 6600)

•I/O Hold Bit Status and Forced Status Hold Bit Status (DM 6601)

•Cycle Monitor Time (DM 6618)

•Cycle Time (DM 6619)

•RS-232C Port Settings (DM 6645 to DM 6649)

Note The RS-232C Port Settings (DM 6645 to DM 6649) are not used in CPM1/ CPM1A PCs because these PCs aren’t equipped with an RS-232C port.

3

PC Setup					Section 1-1
Errors in the PC Setup				If an incorrect PC Setup setting is accessed, a non-fatal error (error code 9B)
				will be generated, the corresponding error flag (AR 2400 to AR 2402 in the
				CQM1, AR 1300 to AR 1302 in the CPM1/CPM1A/SRM1) will be turned ON,
				and the default setting will be used instead of the incorrect setting.
1-1-2	CQM1 PC Setup Settings
				The PC Setup is broadly divided into four categories: 1) Settings related to
				basic CQM1 operation and I/O processes, 2) Settings related to pulse output
				functions, 3) Settings related to interrupts, and 4) Settings related to commu-
				nications. This section will explain the settings according to these classifica-
				tions.
				The following table shows the setting in order in the DM area. For details, refer
				to the page numbers shown.
Word(s)		Bit(s)		Function		Page
Startup Processing (DM 6600 to DM 6614)
The following settings are effective after transfer to the PC only after the PC is restarted.
DM 6600		00 to 07	Startup mode (effective when bits 08 to 15 are set to 02).			16
			00: PROGRAM; 01: MONITOR 02: RUN
		08 to 15	Startup mode designation
			00: Programming Console switch
			01: Continue operating mode last used before power was turned off
			02: Setting in 00 to 07
DM 6601		00 to 07	Not used.
		08 to 11	IOM Hold Bit (SR 25212) Status			17
			0: Reset; 1: Maintain
		12 to 15	Forced Status Hold Bit (SR 25211) Status
			0: Reset; 1: Maintain
DM 6602 to		00 to 15	Not used.
DM 6610
DM 6611		00 to 15	CQM1-CPU43-EV1: Mode setting for ports 1 and 2			25, 63
			0000: High-speed counter mode; 0001: Pulse output mode
			CQM1-CPU44-EV1: Origin compensation setting for port 1 (4-digit BCD)
DM 6612		00 to 15	CQM1-CPU44-EV1: Origin compensation setting for port 2 (4-digit BCD)			63
Pulse Output and Cycle Time Settings (DM 6615 to DM 6619)
The following settings are effective after transfer to the PC the next time operation is started.
DM 6615		00 to 07	Word for pulse output.			24
			00: IR 100; 01: IR101; 02: IR 102... 15: IR 115
		08 to 15	Not used.
DM 6616		00 to 07	Servicing time for RS-232C port (effective when bits 08 to 15 are set to 01)			18
			00 to 99 (BCD): Percentage of cycle time used to service RS-232C port.
		08 to 15	RS-232C port servicing setting enable
			00: 5% of the cycle time
			01: Use time in 00 to 07.
DM 6617		00 to 07	Servicing time for peripheral port (effective when bits 08 to 15 are set to 01)			18
			00 to 99 (BCD): Percentage of cycle time used to service peripheral.
		08 to 15	Peripheral port servicing setting enable
			00: 5% of the cycle time
			01: Use time in 00 to 07.
DM 6618		00 to 07	Cycle monitor time (effective when bits 08 to 15 are set to 01, 02, or 03)			21
			00 to 99 (BCD): Setting (see 08 to 15)
		08 to 15	Cycle monitor enable (Setting in 00 to 07 x unit; 99 s max.)
			00: 120 ms (setting in bits 00 to 07 disabled)
			01: Setting unit: 10 ms
			02: Setting unit: 100 ms
			03: Setting unit: 1 s

4

PC Setup		Section 1-1
Word(s)	Bit(s)	Function	Page
DM 6619	00 to 15	Cycle time	18
		0000: Variable (no minimum)
		0001 to 9999 (BCD): Minimum time in ms
Interrupt Processing (DM 6620 to DM 6639)
The following settings are effective after transfer to the PC the next time operation is started.
DM 6620	00 to 03	Input constant for IR 00000 to IR 00007	19
		0: 8 ms; 1: 1 ms; 2: 2 ms; 3: 4 ms; 4: 8 ms; 5: 16 ms; 6: 32 ms; 7: 64 ms; 8: 128 ms
	04 to 07	Input constant for IR 00008 to IR 00015 (Setting same as bits 00 to 03)
	08 to 15	Input constant for IR 001
		00: 8 ms; 01: 1 ms; 02: 2 ms; 03: 4 ms; 04: 8 ms; 05: 16 ms; 06: 32 ms; 07: 64 ms; 08:
		128 ms
DM 6621	00 to 07	Input constant for IR 002 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 003 (Setting same as for IR 001.)
DM 6622	00 to 07	Input constant for IR 004 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 005 (Setting same as for IR 001.)
DM 6623	00 to 07	Input constant for IR 006 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 007 (Setting same as for IR 001.)
DM 6624	00 to 07	Input constant for IR 008 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 009 (Setting same as for IR 001.)
DM 6625	00 to 07	Input constant for IR 010 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 011 (Setting same as for IR 001.)
DM 6626	00 to 07	Input constant for IR 012 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 013 (Setting same as for IR 001.)
DM 6627	00 to 07	Input constant for IR 014 (Setting same as for IR 001.)
	08 to 15	Input constant for IR 015 (Setting same as for IR 001.)
DM 6628	00 to 03	Interrupt enable for IR 00000 (0: Normal input; 1: Interrupt input)	40
	04 to 07	Interrupt enable for IR 00001 (0: Normal input; 1: Interrupt input)
	08 to 11	Interrupt enable for IR 00002 (0: Normal input; 1: Interrupt input)
	12 to 15	Interrupt enable for IR 00003 (0: Normal input; 1: Interrupt input)
DM 6629	00 to 07	Number of high-speed timers for interrupt refreshing	20
		00 to 15 (BCD; e.g., set 15 for 00 to 14)
	08 to 15	High-speed timer interrupt refresh enable
		00: 16 timers (setting in bits 00 to 07 disabled)
		01: Use setting in 00 to 07
DM 6630	00 to 07	First input refresh word for I/O interrupt 0: 00 to 11 (BCD)	40
	08 to 15	Number of input refresh words for I/O interrupt 0: 00 to 12 (BCD)
DM 6631	00 to 07	First input refresh word for I/O interrupt 1: 00 to 11 (BCD)
	08 to 15	Number of input refresh words for I/O interrupt 1: 00 to 12 (BCD)
DM 6632	00 to 07	First input refresh word for I/O interrupt 2: 00 to 11 (BCD)
	08 to 15	Number of input refresh words for I/O interrupt 2: 00 to 12 (BCD)
DM 6633	00 to 07	First input refresh word for I/O interrupt 3: 00 to 11 (BCD)
	08 to 15	Number of input refresh words for I/O interrupt 3: 00 to 12 (BCD)
DM 6634	00 to 07	First input refresh word for high-speed counter 1: 00 to 11 (BCD)	40
	08 to 15	Number of input refresh words for high-speed counter 1: 00 to 12 (BCD)
DM 6635	00 to 07	First input refresh word for high-speed counter 1: 00 to 11 (BCD)	40
	08 to 15	Number of input refresh words for high-speed counter 1: 00 to 12 (BCD)

5

PC Setup		Section 1-1
Word(s)	Bit(s)	Function	Page
DM 6636	00 to 07	First input refresh word for interval timer 0: 00 to 07 (BCD)	45, 50
	08 to 15	Number of input refresh words for interval timer 0: 00 to 08 (BCD)
DM 6637	00 to 07	First input refresh word for interval timer 1: 00 to 07 (BCD)
	08 to 15	Number of input refresh words for interval timer 1: 00 to 08 (BCD)
DM 6638	00 to 07	First input refresh word for interval timer 2 (also used for high-speed counter 0): 00 to
		07 (BCD)
	08 to 15	Number of input refresh words for interval timer 2: 00 to 08 (BCD)
		(also used for high-speed counter 0)
DM 6639	00 to 07	Output refresh method	21, 393
		00: Cyclic; 01: Direct
	08 to 15	Number of digits for DIGITAL SWITCH (DSW(87)) instruction	21, 124
		00: 4 digits; 01: 8 digits
High-speed Counter Settings (DM 6640 to DM 6644)
The following settings are effective after transfer to the PC the next time operation is started.
DM 6640,	00 to 15	Not used.
DM 6641
DM 6642	00 to 03	High-speed counter 0 mode	50
		0: Up/down counter mode; 4: Incrementing counter mode
	04 to 07	High-speed counter 0 reset mode
		0: Z phase and software reset; 1: Software reset only
	08 to 15	High-speed counter 0 enable
		00: Don’t use high-speed counter; 01: Use high-speed counter with settings in 00 to 07
DM 6643	00 to 03	CQM1-CPU43-EV1: Port 1 input setting	55, 62
		0: Differential phase input; 1: Pulse/Direction input; 2: Up/Down input
		CQM1-CPU44-EV1: Port 1 input setting
		0: 8-bit input; 1: 10-bit input; 2: 12-bit input
	04 to 07	CQM1-CPU43-EV1: Port 1 reset setting	57
		0: Z phase and software reset; 1: Software reset only
		CQM1-CPU44-EV1: Not used. Set to 0.
	08 to 11	CQM1-CPU43-EV1: Port 1 counting mode setting	56, 62
		0: Linear mode; 1: Ring mode
		CQM1-CPU44-EV1: Port 1 mode setting
		0: BCD mode; 1: 360° mode
	12 to 15	CQM1-CPU43-EV1: Port 1 pulse type setting	25, 32
		0: Standard pulse output (0.5 duty ratio); 1: Variable-duty-ratio pulse output
		CQM1-CPU44-EV1: Not used. Set to 0.
DM 6644	00 to 15	Port 2 settings (Identical to the port 1 settings in DM 6643.)

6

PC Setup						Section 1-1
Word(s)	Bit(s)				Function		Page
RS-232C Port Settings
The following settings are effective after transfer to the PC.
DM 6645	00 to 07	Port settings					90
		00: Standard (1 start bit, 7-bit data, even parity, 2 stop bits, 9,600 bps)
		01: Settings in DM 6646
	08 to 11	Link words for 1:1 link (Effective when bits 12 to 15 are set to 3.)
		0: LR 00 to LR 63; 1: LR 00 to LR 31; 2: LR 00 to LR 15
	12 to 15	Communications mode
		0: Host link; 1: RS-232C (no protocol); 2: 1:1 data link slave; 3: 1:1 data link master;
		4: NT Link (1:1) (NT Link setting is only applicable to the CQM1-CPU4@-EV1 CPU
		Units.)
DM 6646	00 to 07	Baud rate
		00: 1.2K, 01: 2.4K, 02: 4.8K, 03: 9.6K, 04: 19.2K
	08 to 15	Frame format
			Start	Length	Stop	Parity
		00:	1 bit	7 bits	1 bit	Even
		01:	1 bit	7 bits	1 bit	Odd
		02:	1 bit	7 bits	1 bit	None
		03:	1 bit	7 bits	2 bit	Even
		04:	1 bit	7 bits	2 bit	Odd
		05:	1 bit	7 bits	2 bit	None
		06:	1 bit	8 bits	1 bit	Even
		07:	1 bit	8 bits	1 bit	Odd
		08:	1 bit	8 bits	1 bit	None
		09:	1 bit	8 bits	2 bit	Even
		10:	1 bit	8 bits	2 bit	Odd
		11:	1 bit	8 bits	2 bit	None
DM 6647	00 to 15	Transmission delay (Host Link)
		0000 to 9999 (BCD): Set in units of 10 ms, e.g., setting of 0001 equals 10 ms
DM 6648	00 to 07	Node number (Host link, effective when bits 12 to 15 of DM 6645 are set to 0.)
		00 to 31 (BCD)
	08 to 11	Start code enable (RS-232C, effective when bits 12 to 15 of DM 6645 are set to 1.)
		0: Disable; 1: Set
	12 to 15	End code enable (RS-232C, effective when bits 12 to 15 of DM 6645 are set to 1.)
		0: Disable (number of bytes received)
		1: Set (specified end code)
		2: CR, LF
DM 6649	00 to 07	Start code (RS-232C)					90
		00 to FF (binary)
	08 to 15	When bits 12 to 15 of DM 6648 are set to 0:
		Number of bytes received
		00: Default setting (256 bytes)
		01 to FF: 1 to 255 bytes
		When bits 12 to 15 of DM 6648 are set to 1:
		End code (RS-232C)
		00 to FF (binary)

7

	PC Setup						Section 1-1
	Word(s)	Bit(s)				Function		Page
	Peripheral Port Settings
	The following settings are effective after transfer to the PC.
	These settings are effective when a CQM1-CIF01 Connecting Cable is used.
	They are not effective when a CQM1-CIF11 Connecting Cable or Programming Console is used.
	DM 6650	00 to 07 Port settings						90
			00: Standard (1 start bit, 7-bit data, even parity, 2 stop bits, 9,600 bps)
			01: Settings in DM 6651
		08 to 11	Not used.
		12 to 15 Communications mode					90
			0: Host link; 1: RS-232C
	DM 6651	00 to 07	Baud rate
			00: 1.2K, 01: 2.4K, 02: 4.8K, 03: 9.6K, 04: 19.2K
		08 to 15 Frame format
				Start	Length	Stop	Parity
			00:	1 bit	7 bits	1 bit	Even
			01:	1 bit	7 bits	1 bit	Odd
			02:	1 bit	7 bits	1 bit	None
			03:	1 bit	7 bits	2 bit	Even
			04:	1 bit	7 bits	2 bit	Odd
			05:	1 bit	7 bits	2 bit	None
			06:	1 bit	8 bits	1 bit	Even
			07:	1 bit	8 bits	1 bit	Odd
			08:	1 bit	8 bits	1 bit	None
			09:	1 bit	8 bits	2 bit	Even
			10:	1 bit	8 bits	2 bit	Odd
			11:	1 bit	8 bits	2 bit	None
	DM 6652	00 to 15 Transmission delay (Host Link)
			0000 to 9999: In ms.
	DM 6653	00 to 07 Node number (Host link, effective when bits 12 to 15 of DM 6650 are set to 0.)
			00 to 31 (BCD)
		08 to 11 Start code enable (RS-232C, effective when bits 12 to 15 of DM 6650 are set to 1.)
			0: Disable; 1: Set
		12 to 15 End code enable (RS-232C, effective when bits 12 to 15 of DM 6650 are set to 1.)
			0: Disable (number of bytes received)
			1: Set (specified end code)
			2: CR, LF
	DM 6654	00 to 07 Start code (RS-232C, effective when bits 08 to 11 of DM 6653 are set to 1.)
			00 to FF (binary)

08 to 15 When bits 12 to 15 of DM 6653 are set to 0: Number of bytes received

00: Default setting (256 bytes) 01 to FF: 1 to 255 bytes

When bits 12 to 15 of DM 6653 are set to 1: End code (RS-232C)

00 to FF (binary)

Error Log Settings (DM 6655)

The following settings are effective after transfer to the PC.

DM 6655	00 to 03	Style	22
		0: Shift after 10 records have been stored
		1: Store only first 10 records (no shifting)
		2 to F: Do not store records
	04 to 07	Not used.
	08 to 11	Cycle time monitor enable	22
		0: Detect long cycles as non-fatal errors
		1: Do not detect long cycles
	12 to 15	Low battery error enable
		0: Detect low battery voltage as non-fatal error
		1: Do not detect low batter voltage

8

PC Setup Section 1-1

1-1-3	CPM1/CPM1A PC Setup Settings
			The PC Setup is broadly divided into four categories: 1) Settings related to
			basic PC operation and I/O processes, 2) Settings related to the cycle time, 3)
			Settings related to interrupts, and 4) Settings related to communications. This
			section will explain the settings according to these classifications.
			The following table shows the settings for CPM1/CPM1A PCs in order. Refer
			to the page number in the last column for more details on that setting.
Word(s)		Bit(s)	Function		Page
Startup Processing (DM 6600 to DM 6614)
The following settings are effective after transfer to the PC only after the PC is restarted.
DM 6600		00 to 07	Startup mode (effective when bits 08 to 15 are set to 02).		16
			00: PROGRAM; 01: MONITOR 02: RUN
		08 to 15	Startup mode designation
			00: Programming Console switch
			01: Continue operating mode last used before power was turned off. (See note 1.)
			02: Setting in 00 to 07
DM 6601		00 to 07	Not used.		17
		08 to 11	IOM Hold Bit (SR 25212) Status at Startup
			0: Reset; 1: Maintain (See note 3.)
		12 to 15	Forced Status Hold Bit (SR 25211) Status at Startup
			0: Reset; 1: Maintain (See note 3.)
DM 6602		00 to 03	Program memory write-protection		17
			0: Program memory unprotected
			1: Program memory write-protected (except DM 6602 itself)
		04 to 07	Programming Console display language
			0: English; 1: Japanese
		08 to 15	Not used.
DM 6603		00 to 15	Not used.
DM 6604		00 to 07	00: If data could not be saved with the built-in capacitor (AR 1314 ON), a memory error will not
			be generated.
			01: If data could not be saved with the built-in capacitor (AR 1314 ON), a memory error will be
			generated.
		08 to 15	Not used.
DM 6605 to		00 to 15	Not used.
DM 6614
Cycle Time Settings (DM 6615 to DM 6619)
The following settings are effective after transfer to the PC the next time operation is started.
DM 6615,		00 to 15	Not used.
DM 6616
DM 6617		00 to 07	Servicing time for peripheral port (effective when bits 08 to 15 are set to 01)		18
			00 to 99 (BCD): Percentage of cycle time used to service peripheral.
		08 to 15	Peripheral port servicing setting enable
			00: 5% of the cycle time
			01: Use time in 00 to 07.
DM 6618		00 to 07	Cycle monitor time (effective when bits 08 to 15 are set to 01, 02, or 03)		21
			00 to 99 (BCD): Setting (see 08 to 15)
		08 to 15	Cycle monitor enable (Setting in 00 to 07 x unit; 99 s max.)
			00: 120 ms (setting in bits 00 to 07 disabled)
			01: Setting unit: 10 ms
			02: Setting unit: 100 ms
			03: Setting unit: 1 s
DM 6619		00 to 15	Cycle time		18
			0000: Variable (no minimum)
			0001 to 9999 (BCD): Minimum time in ms

9