Omron CQM1, CPM1, CPM1A, SRM1 PROGRAMMING MANUAL

PROGRAMMING

MANUAL

Programmable Controllers

SYSMAC
CQM1/CPM1/CPM1A/SRM1

Cat. No. W228-E1-08

CQM1/CPM1/CPM1A/SRM1 Programmable Controllers

Programming Manual

Revised December 2005

iv

Notice:

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

The following conventions are used to ind icate and classify pr ecautions in this manual . Always heed
the information provided with them . Failure to heed precautions can result in in jur y to people or dam­age to property.

!DANGER Indicates an immine ntly hazardous situation whi ch, if not avoided, will result in death or

serious inj ury.

!WARNING Indicates a potentially hazardous situatio n which, if not avoided, could resu lt in death or

serious inj ury.

!Caution Indicates a potentially hazardous situat ion which, if not avoided, may result in mino r 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 produ cts, often means
“word” and is abbreviated “Wd” in documentation in this sense.

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

Visual Aids

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

 OMRON, 1993

All rights reserved. No part of this publicatio n may b e repro d uced, sto red 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 Indicates information of pa rticular interest for efficient and convenient opera-

tion of the product.

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

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 52

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 describe s programming of the CQM1, CPM1, CPM1A, and SRM1 Programmable Con­trollers, including memo r y s tr ucture, memory contents, lad der- diagram i nstr uctio ns, etc., an d inclu des
the sections described below. Refer to the CQM1 Operation Manual, CPM1 Operation Manual,
CPM1A Operation Manual, a nd SRM1 Master C ontrol Units Operation Manual for hardware informa-
tion and Programming Co nsole operating procedure s. Refer to the SSS Operation Manual: C-series
PCs for SSS operating procedures.

Note The SRM1 is a specialized p rogrammable controll er and is normally called a CompoBus/S

Master Control Unit. The SRM1, however, is programmed in the sa me 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 describ es the structure of the PC’s memory areas, and explains how to use them. It also
describes Memory Cassette ope rations use d to transfer data between the CQ M1 and a Me mory Cas­sette.

Section 4 explai ns the ba si c s tep s an d conc e pts involved in writing a basic ladder diag r a m pr ogram. It
introduces the instr uc tions that are used to build the basic st ru cture of the ladder d iagram and control
its execution.

Section 5 individually des cribes the ladder-di agram programming instruct ions that can be used with
the PC.

Section 6 explains the me thod s and pr oced ur es for using h ost link commands, whi ch can b e u sed 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, an d I CPM1A and CPM1
Memory Area Comparison.

!WARNING Failure to read and understand the informati on provided i n this ma nual may result in p er-

sonal injury or death, damage to th e product, or product failure. Please r ea d ea ch 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 understa nd 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 t he product according to t he performance specifica­tions described in the operation manuals.

Before using the product under conditions which are not described in the
manual or applying the produ ct to nuclear control s ystems, railroad systems,
aviation systems, vehicles, combustion systems, me dical equipmen t, amuse­ment machines, safety equipment, and oth er systems, machines, and equi p­ment that may have a serious influence on lives and property if used
improperly, consult your OMRON representative.

Make sure that the ratings and performan ce charact er is ti cs of the pr od uc t are
sufficient for the systems, machi nes, and equipment, and be sure to provide
the systems, machines, and equipment with double safety mechanisms.

This manual provides informat ion for programming and operat ing the Un it. B e
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 impor tant th at a PC and all PC Units be u sed for the spe cified

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 Sy stem to the above-mentioned a pplic a­tions.

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 termi na ls w hil e the power is being sup pl ied . Doing s o

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 ter minal block of the AC Power Supply Unit to the

torque specified in th e 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. Other wise, 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 t he I/O m emo ry area. Doing eit her of these without
confirming safety may result in injury.

!Caution When connecting the PC t o a personal compute r or other peri pheral device,

either ground the 0-V side of the PC or do not gro und the PC a t all . Alth ough
some grounding method s shor t the 24-V side, as shown in th e 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

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 counter measures when installing systems in

the following locations:

0 V

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

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radioactivity.

• Locations close to power supplies.

!Caution The operating environment of the PC System ca n have a large effect on the

longevity and reliability of the sy stem. Improper operating environme nts can
lead to malfunction, failure, and other unforeseeable problems with the PC
System. Be sure that the op erating environment is within the sp ecified cond i­tions at installation and remai ns within the specifi ed conditions dur ing 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 mal function 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 abnorm al 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 b e provided by the
customer.

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

• Take appropriate me asures to ensure that the specified power with th e
rated voltage and frequency i s supplied. Be particula rly 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-cir­cuiting in exter nal wiring. Insufficient safety measur es against short-cir­cuiting may result in burning.

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

• Do not apply voltages or connect lo ads to the Output Units in exces s of
the maximum swi tching capacity. Excess voltage or loads may r esult 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 , ter min al scre ws, and cable connec­tor screws are tightened to the torque specified in the r elevant 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 bloc ks, Memory Units, expansion cables, an d
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 attemptin g
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 trans ferring to the new CPU Un it 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 fir s t to uch a grounded metallic obj ec t
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 Connectin g Cable while the power is
being supplied in order to prevent any malfunction due to static electricity.

• When replacing parts, be sure to confirm th at 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 me mory is clear ed before the CPU Unit is shippe d (except
for bits with specific functi ons), AR 1314, which tur ns ON when the inter nal
capacitor cannot back up memory, may ha ve 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 area s is cleared when power is
turned OFF.

!Caution Either switch the CPM1 or CPM1 A to RUN or MONITOR mode, or turn OFF

and ON power to the CPM1 or CPM1A after chang ing from a Programming
Device any data that is backed up in flas h memory. Thi s 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 CPM 1 or CPM1A are
backed up either by an inter nal capa citor or in f lash memory as shown i n

the following table.

Backup method Data

Internal capacitor Read/write DM area (DM 0000 to DM 0999, DM 1022, and

Flash memory User program

DM 1023)
Error log area (DM 1000 to DM 1021)
HR area (HR 00 to HR 19)
Counter area (CNT 000 to CNT 127)

Read-only DM area (DM 6144 to DM 6599)
PC Setup (DM 6600 to DM 6655)

Note

1. The IR, TR, LR, and ti mer areas are not no rmall y ba cked up when power
is turned OFF and all contents will be cleared the next time power is turned
ON. (The PC Setup s et ting in DM 660 1 c an be us ed t o ba ck up thi s 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 fu lly charged, which requires t hat power be supplied to
the CPU Unit continuously for at least 15 minutes.

20

10

Backup time (days)

7

1

25 40 80

Ambient temperature (°C)

xviii

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 13 14 will rem ain
ON unless it i s tu rned OFF using I/O monitor ope rati ons, us ing m emo ry clear
operations, or from the user program.

If desired, the PC Setu p setting in DM 6604 can be set to cr eate 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 memor y 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 wi ll no t be written to flas h
memory. If the power is then left OFF for more than 20 days (at 25

°C), the

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 syste m is not influe nced by any undefined data if the

data in the DM, HR, or CNT area is c leare d wh en t he S RM1 ha s b een turned
OFF for a period exceeding the data backup period of the internal lithium bat­tery. If the AR 1414 flag is ON, the dat a will be held unles s it is turne d OFF
using the I/O Monito r ope ration, in structions, etc. The s yst em 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 C PU Unit is used to back up the counter values
and the contents of the DM area, and HR ar ea. The deterioration of the
lithium batter y capacity depends o n the ambient temperature. T he 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 per iod exceeding the data backup per iod, the
contents of the Data Memory (DM), Hold Relay (HR), and Counter (CNT)
Areas in the CPU Un it may be cleared and the A R 1314 flag (which t urns ON
when the power interruption hold area is not held) may turn ON.

If the contents of th e CP U Un it’s program area are lo st, the pr ogram sto re d i n
flash memory will be r ead to th e CPU Unit’s program area when the SRM 1 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 mod e 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 thes e 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 fl ash memor y will be automa tically
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 comp ly with EC Directives. To ensure tha t the machine or
device i n w h ich a C QM1 P C i s us ed c omp li es w i th EC D i re ct ives, 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 us in g r el ay outputs and ca us e th e
overall machine to fail to meet the Stan dard. If this occurs, surge kil lers
must be connected or other measures taken external to the PC.

The following methods represent typical met hods for reduc ing 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 con trol pa nel , wiring, the config­uration of the system, and other conditions.

Determining if Countermeasures Are Required

Refer to EN50081-2 for more details.
Countermeasur es are not required if the f requency 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, co nne ct a n su r ge pr ot ec tor, diodes, etc., in
parallel with the load or contact as shown below.

Circuit Current Characteristic Required element

AC DC

CR method

Power
supply

Diode method

Power
supply

Varistor method

Power
supply

Yes Yes If the load is a relay or solenoid, there

is a time lag between the moment the
circuit is opened and the moment the
load is reset.

If the supply voltage is 24 or 48 V,

Inductive

load

No Yes The diode connected in parallel with

Inductive

load

Yes Yes The varistor method prevents the impo-

Inductive

load

insert the surge protector in parallel
with the load. If the supply voltage is
100 to 200 V, insert the surge protector
between the contacts.

the load changes energy accumulated
by the coil into a current, which then
flows into the coil so that the current
will be converted into Joule heat by the
resistance of the inductive load.

This time lag, b etw een the moment the
circuit is opened and the moment the
load is reset, caused by this method is
longer than that caused by the CR
method.

sition of high voltage between the con­tacts by using the constant voltage
characteristic of the varistor. There is
time lag between the moment the cir­cuit is opened an d the moment the load
is reset.

If the supply voltage is 24 or 48 V,
insert the varistor in parallel with the
load. If the supply v o ltage is 100 to 2 00
V, insert the varistor between the con­tacts.

The capacitance of the capacitor must
be 1 to 0.5 µF per contact current of
1 A and resistance of the resistor must
be 0.5 to 1 Ω per c ontact v ol tage of 1V.
These values, however, vary with the
load and the characteristics of the
relay. Decide these values from tes ting,
and take into consideration that the
capacitance suppresses spark dis­charge when the contacts are sepa­rated 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.

The reversed dielectric strength value
of the diode must be at least 10 times
as large as the circuit voltage value.
The forward current of the diode must
be the same as or larger than the load
current.

The reversed dielectric strength value
of the diode may be two to three times
larger than the supply voltage if the
surge protector is applied to electronic
circuits with low circuit voltages.

---

xx

When switching a load with a high inr ush current, such as an incandes cent
lamp, suppress the inrush current as shown below.

Conformance to EC Directives 6

g

r

Countermeasure 1

OUT

R

COM

Providing a dark current of approx.
one-third of the rated value
throu

h an incandescent lamp

Countermeasure 2

R

OUT

COM
Providing a limiting resisto

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 featur es, 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 procedu res. Refer to the SSS O peration M anual:
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 M emory
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 On l y) . . 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-spee d 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. . . . . . . . . . . . . . . . . . . . 1 05

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 Tr ansmission Data Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

1-9-14 Tr ansmission 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 compr ises various operating parameters that contro l CQM1/
CPM1/CPM1A/SRM1 operation. In order to make the maximum use of
CQM1/CPM1/CPM1A/SRM1 functionality when using interrupt processing
and communications fu nctions, the PC Setup may be customized accor ding
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

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.

Making Changes from a
Peripheral Device

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

Although the PC Se tup is stored in DM 6600 to DM 665 5, 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 us ing
menu operations. All other se ttin gs must b e ma de u sing th e hexadeci ma l s et­ting 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 Setti ngs (DM 6645 to DM 6649) are no t 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 settin g is acc essed, a non-fatal error (er ror code 9B)

will be generated, the c orresponding error flag (AR 2400 to AR 2402 in th e
CQM1, AR 1300 to AR 1302 in the CPM1/ CPM1A/SRM1) wil l 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 rela ted to
basic CQM1 operation and I/O proces ses, 2) Settin gs related to pulse o utput
functions, 3) Settings re lated to in terr upts, and 4) Set tings related t o commu­nications. This section wi ll explain the settings according to these classifica­tions.

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

Startu p 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).

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

0: Reset; 1: Maintain

12 to 15 Forced Status Hold Bit (SR 25211) Status

DM 6602 to
DM 6610

DM 6611 00 to 15 CQM1-CPU43-EV1: Mode setting for ports 1 and 2

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.

DM 6616 00 to 07 Servicing time for RS-232C port (effective when bits 08 to 15 are set to 01)

DM 6617 00 to 07 Servicing time for peripheral port (effective when bits 08 to 15 are set to 01)

DM 6618 00 to 07 Cycle monitor time (effective when bits 08 to 15 are set to 01, 02, or 03)

00 to 15 Not used.

08 to 15 Not used.

08 to 15 RS-232C port servicing setting enable

08 to 15 Peripheral port servicing setting enable

08 to 15 Cycle monitor enable (Setting in 00 to 07 x unit; 99 s max.)

0: Reset; 1: Maintain

0000: High-speed counter mode; 0001: Pulse output mode
CQM1-CPU44-EV1: Origin compensation setting for port 1 (4-digit BCD)

00: IR 100; 01: IR101; 02: IR 102... 15: IR 115

00 to 99 (BCD): Percentage of cycle time used to service RS-232C port.

00: 5% of the cycle time
01: Use time in 00 to 07.

00 to 99 (BCD): Percentage of cycle time used to service peripheral.

00: 5% of the cycle time
01: Use time in 00 to 07.

00 to 99 (BCD): Setting (see 08 to 15)

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

16

17

25, 63

24

18

18

21

4

PC Setup Section 1-1

Word(s) Bit(s) Function Page

DM 6619 00 to 15 Cycle time

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

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 m s; 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

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)

18

19

20

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

08 to 15 Number of input refresh words for interval timer 2: 00 to 08 (BCD)

DM 6639 00 to 07 Output refresh method

08 to 15 Number of digits for DIGITAL SWITCH (DSW(87)) instruction

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,

DM 6641
DM 6642 00 to 03 High-speed counter 0 mode

DM 6643 00 to 03 CQM1-CPU43-EV1: Port 1 input setting

DM 6644 00 to 15 Port 2 settings (Identical to the port 1 settings in DM 6643.)

00 to 15 Not used.

04 to 07 High-speed counter 0 reset mode

08 to 15 High-speed counter 0 enable

04 to 07 CQM1-CPU43-EV1: Por t 1 reset setting

08 to 11 CQM1-CPU43-EV1: Por t 1 counting mode setting

12 to 15 CQM1-CPU43-EV1: Por t 1 pulse type setting

07 (BCD)

(also used for high-speed counter 0)

21, 393

00: Cyclic; 01: Direct

21, 124

00: 4 digits; 01: 8 digits

50

0: Up/down counter mode; 4: Incrementing counter mode

0: Z phase and software reset; 1: Software reset only

00: Don’t use high-speed counter; 01: Use high-speed counter with settings in 00 to 07

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

57

0: Z phase and software reset; 1: Software reset only
CQM1-CPU44-EV1: Not used. Set to 0.

56, 62

0: Linear mode; 1: Ring mode
CQM1-CPU44-EV1: Port 1 mode setting

0: BCD mode; 1: 360° mode

25, 32

0: Standard pulse output (0.5 duty ratio); 1: Variable-duty-ratio pulse output
CQM1-CPU44-EV1: Not used. Set to 0.

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

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)

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)

90

90

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

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

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)

90

90

Error Log Settings (DM 6655)

The following settings are effective after transfer to the PC.
DM 6655 00 to 03 Style

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

0: Detect long cycles as non-fatal err ors
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

22

22

PC Setup Section 1-1

1-1-3 CPM1/CPM1A PC Setup Settings

The PC Setup is broadly divided into four categories: 1) Settings rela ted to
basic PC operation and I/O processes, 2) Settings related to the cycle time, 3)
Settings related to inter r upt s, and 4) S ettings re la ted to c ommun icati ons. This
section will explain the settings according to these classifications.

The following table shows the settings for CPM1/CPM1A PCs in o rder. Refer
to the page number in the last column for more details on that setting.

Word(s) Bit(s) Function Page

Startu p 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).

08 to 15 Startup mode designation

DM 6601 00 to 07 Not used. 17

08 to 11 IOM Hold Bit (SR 25212) Status at Startup

12 to 15 Forced Status Hold Bit (SR 25211) Status at Startup

DM 6602 00 to 03 Program memory write-protection

04 to 07 Programming Console display language

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

08 to 15 Not used.
DM 6605 to

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,

DM 6616
DM 6617 00 to 07 Servicing time for peripheral port (effective when bits 08 to 15 are set to 01)

DM 6618 00 to 07 Cycle monitor time (effective when bits 08 to 15 are set to 01, 02, or 03)

DM 6619 00 to 15 Cycle time

00 to 15 Not used.

00 to 15 Not used.

08 to 15 Peripheral port servicing setting enable

08 to 15 Cycle monitor enable (Setting in 00 to 07 x unit; 99 s max.)

00: PROGRAM; 01: MONITOR 02: RUN

00: Programming Console switch
01: Continue operating mode last used before power was turned off. (See note 1.)
02: Setting in 00 to 07

0: Reset; 1: Maintain (See note 3.)

0: Reset; 1: Maintain (See note 3.)

0: Program memory unprotected
1: Program memory write-protected (except DM 6602 itself)

0: English; 1: Japanese

be generated.

01: If data could not be saved with the built-in capacitor (AR 1314 ON), a memory error will be

generated.

00 to 99 (BCD): Percentage of cycle time used to service peripheral.

00: 5% of the cycle time
01: Use time in 00 to 07.

00 to 99 (BCD): Setting (see 08 to 15)

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

0000: Variable (no minimum)
0001 to 9999 (BCD): Minimum time in ms

16

17

18

21

18

9