Omron CP1L-EL20DR-D User manual

OPERATION MANUAL
Cat. No. W516-E1-04
SYSMAC CP Series
CP1L-EL20D@-@
CP1L-EM30D@-@
CP1L-EM40D@-@
CP1L-EL/EM CPU Unit

Copyrights
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
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. Neverthe-
less, 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
• Microsoft, Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States
and other countries.
• ODVA, CIP, CompoNet, DeviceNet, and EtherNet/IP are trademarks of ODVA.
Other company names and product names in this document are the trademarks or registered trademarks of their
respective companies.
Trademarks

CP1L-EL20D@-@
CP1L-EM30D@-@
CP1L-EM40D@-@
CP1L-EL/EM CPU Unit
Operation Manual
Produced July 2017

iv

v
Notice: OMRON products are manufactured for use according to proper procedures
by a qualified operator and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this
manual. Always heed the information provided with them. Failure to heed pre-
cautions 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. Additionally, there may be severe property damage.
!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury. Additionally, there may be severe property damage.
!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 “PLC” means Programmable Controller. “PC” is used, how-
ever, in some CX-Programmer displays to mean Programmable Controller.
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 opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

vi
Unit Versions of CP-series CPU Units
Unit Versions A “unit version” has been introduced to manage CPU Units in the CP Series
according to differences in functionality accompanying Unit upgrades.
Notation of Unit Versions
on Products The unit version is given to the right of the lot number on the nameplate of the
products for which unit versions are being managed, as shown below.
Confirming Unit Versions
with Support Software CX-Programmer version 9.4 or higher can be used to confirm the unit version
of the CP1L-EL/EM CPU Unit.
Note CX-Programmer version 9.3 or lower cannot be used to confirm unit versions
for CP1L-EL/EM CPU Units.
■Confirmation Procedure
Procedure When the Device Type and CPU Type Are Known
1,2,3... 1. Set the Device Type Field in the Change PLC Dialog Box to CP1L-E.
Lot No.
Product nameplate
CP-series CPU Unit
Unit version (Example for Unit version 1.0)
CP1L-EM40DR-D
CPU UNIT
Lot No. 01312M Ver.1.0
OMRON Corporation MADE IN CHINA
00
NC 02 04 06 08 10 00 02 04 06 08 10
01
COM 03 05 07 09 11 01 03 05 07 09 11
00 01 02 03 04 06 00 01 03 04 06
COM 02 COM 05 07
COM
COM(V+) 05 07
MAC Address:
01234567890A
SYSMAC
CP1L
BKUP
ERR/ALM
LNK/ACT
POWER
RUN
INH
2
ANALOG INPUT
V1+V2+
COM
EXP
1

vii
2. Click the Settings Button by the Device Type Field and, when the Device Type
Settings Dialog Box is displayed, set the CPU Type Field to EL or EM.
3. Go online and select PLC - Edit - Information.
(Refer to 5-1 Connecting the CX-Programmer)
The PLC Information Dialog Box will be displayed.

viii
Use the above display to confirm the unit version of the CPU Unit.
Procedure When the Device Type and CPU Type Are Not Known
This procedure is possible only when connected directly to the CPU Unit with
a serial connection.
If you don't know the device type and CPU type that are connected directly to
the CPU Unit on a serial line, select PLC - Auto Online to go online, and then
select PLC - Edit - Information from the menus.
The PLC Information Dialog Box will be displayed and can be used to confirm
the unit version of the CPU Unit.

ix
Using the Unit Version
Labels The following unit version labels are provided with the CPU Unit.
These labels can be attached to the front of previous CPU Units to differenti-
ate between CPU Units of different unit versions.
Ver.
1.0
Ver.
1.0
Ver.
Ver.
TheseLabelscanbe used
tomanagedifferences
intheavailable
functionsamongtheUnits.
Placetheappropriate label
onthefrontoftheUnitto
showwhatUnit
versionisactuallybeing
used.

x

xi
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii
1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi
5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx
7 Software Licenses and Copyrights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxiii
SECTION 1
Features and System Configuration . . . . . . . . . . . . . . . . . . . 1
1-1 Features and Main Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-3 Function Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1-4 Function Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SECTION 2
Nomenclature and Specifications . . . . . . . . . . . . . . . . . . . . . 19
2-1 Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
2-2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2-3 CP1L-EL/EM CPU Unit Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2-4 CPU Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2-5 CPU Unit Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
2-6 Power OFF Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2-7 Computing the Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
SECTION 3
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3-1 Fail-safe Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3-2 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3-3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3-4 Wiring CP1L-EL/EM CPU Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
3-5 Wiring CPU Unit I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
3-6 CP-series Expansion I/O Unit Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
SECTION 4
I/O Memory Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
4-1 Overview of I/O Memory Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
4-2 I/O Area and I/O Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
4-3 1:1 Link Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
4-4 Serial PLC Link Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
4-5 Internal Work Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

xii
TABLE OF CONTENTS
4-6 Holding Area (H). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
4-7 Auxiliary Area (A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
4-8 TR (Temporary Relay) Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
4-9 Timers and Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
4-10 Data Memory Area (D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
4-11 Index Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
4-12 Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
4-13 Task Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
4-14 Condition Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
4-15 Clock Pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
SECTION 5
CX-Programmer Connection, Program Transfer, Trial Operation,
and Debugging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
5-1 Connecting the CX-Programmer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
5-2 Program Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
5-3 Trial Operation and Debugging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
SECTION 6
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
6-1 System Configuration and Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
6-2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
6-3 Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
6-4 Basic Setting for Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
6-5 FINS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
6-6 Socket Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
6-7 Automatic Clock Adjustment and Specifying Servers by Host Name . . . . . . . . . . . . . . . . . 211
SECTION 7
Pulse and Counter Functions. . . . . . . . . . . . . . . . . . . . . . . . . 217
7-1 High-speed Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
7-2 Pulse Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
7-3 Inverter Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
SECTION 8
Advanced Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
8-1 Interrupt Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
8-2 Quick-response Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397
8-3 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400
8-4 Built-in Analog Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428
8-5 Battery-free Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431
8-6 Memory Cassette Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

xiii
TABLE OF CONTENTS
8-7 Program Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
8-8 Failure Diagnosis Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .451
8-9 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
SECTION 9
Using Expansion Units and Expansion I/O Units. . . . . . . . 457
9-1 Connecting Expansion Units and Expansion I/O Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
9-2 Analog Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459
9-3 Analog Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472
9-4 Analog I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
9-5 Temperature Sensor Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .513
9-6 CompoBus/S I/O Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548
SECTION 10
Analog Input/Output Option Board . . . . . . . . . . . . . . . . . . . 553
10-1 General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554
10-2 Part Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554
10-3 Installation and Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555
10-4 Memory Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 556
10-5 Analog Input Option Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .557
10-6 Analog Output Option Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560
10-7 Analog I/O Option Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .564
10-8 Startup Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568
10-9 Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569
10-10 The Use of Analog Option Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569
SECTION 11
LCD Option Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571
11-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572
11-2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573
11-3 Part Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574
11-4 Installation and Removing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575
11-5 Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 576
11-6 LCD Option Board Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 581
11-7 Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 630
SECTION 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 633
12-1 Error Classification and Confirmation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 634
12-2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 637
12-3 Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 648
12-4 Troubleshooting Unit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .649

xiv
TABLE OF CONTENTS
SECTION 13
Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 651
13-1 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652
13-2 Replacing User-serviceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 654
Appendices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657
A Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657
B Dimensions Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .663
C Auxiliary Area Allocations by Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 671
D Auxiliary Area Allocations by Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 693
E Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745
F Connections to Serial Communications Option Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 747
G PLC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773
H TCP Status Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .803
I Ethernet Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 805
J Buffer Configuration (CP1L-EL/EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 807
K Ethernet Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 809
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 811
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819

xv
About this Manual:
This manual describes installation and operation of the CP-series Programmable Controllers (PLCs)
and includes the sections described below. The CP Series provides advanced package-type PLCs
based on OMRON’s advanced control technologies and vast experience in automated control.
Please read this manual carefully and be sure you understand the information provided before
attempting to install or operate a CP-series PLC. Be sure to read the precautions provided in the fol-
lowing section.
Definition of the CP Series
The CP Series is centered around the CP1H and CP1L CPU Units and is designed with the same
basic architecture as the CS and CJ Series. Always use CP-series Expansion Units and CP-series
Expansion I/O Units when expanding I/O capacity.
I/O words are allocated in the same way as the CPM1A/CPM2A PLCs, i.e., using fixed areas for inputs
and outputs.
CS1-H CPU Units
CS-series Power Supply Units
Note: Products specifically for the CS1D
Series are required to use CS1D
CPU Units.
CS-series Basic I/O Units
CS-series CPU Bus Units
CS-series Special I/O Units
CS1 CPU Units
CS1G
CS1D CPU Units
CS1D CPU Units for
Duplex-CPU System
CS1D-CPU H
CS1D CPU Units for
Single-CPU System
CS1D-CPU S
CS1D Process CPU Units
CS1D-CPU P
CP1H CPU Unit
CS/CJ/CP Series
CS Series
CJ1H-CP
CJ1G-C
CJ1G -CP
(Loop CPU Unit)
CJ1-H CPU Units
CJ1 CPU Unit
CJ1G-CPU
CJ1M CPU Unit
CJ1M-CP
CJ-series Basic I/O Units
CJ-series Special I/O Units
CJ-series CPU Bus Units
CJ-series Power Supply Units
CJ Series CP Series
CP-series Expansion Units
CP-series Expansion I/O Units
CJ-series Special I/O Units
CJ-series CPU Bus Units
CP1L CPU Unit
CP-series Expansion Units
CP-series Expansion I/O Units

xvi
Precautions provides general precautions for using the Programmable Controller and related devices.
Section 1 introduces the features of the CP1L-EL/EM and describes its configuration. It also describes
the Units that are available and connection methods for Programming Devices and other peripheral
devices.
Section 2 describes the names and functions of CP1L-EL/EM parts and provides CP1L-EL/EM speci-
fications.
Section 3 describes how to install and wire the CP1L-EL/EM.
Section 4 describes the structure and functions of the I/O Memory Areas and Parameter Areas.
Section 5 describes the methods for CX-Programmer connection, the processes used to transfer the
program to the CPU Unit and the functions that can be used to test and debug the program.
Section 6 gives an outline of the built-in Ethernet function, explains its specification and how to make
the settings required for operation.
Section 7 describes the CP1L-EL/EM’s interrupt and high-speed counter functions.
Section 8 describes all of the advanced functions of the CP1L-EL/EM that can be used to achieve
specific application needs.
Section 9 describes how to use CP-series Expansion Units and Expansion I/O Units.
Section 10 describes how to use Analog Input/Output Option Board.
Section 11 gives an outline of the LCD Option Board, explains how to install and remove the LCD
Option Board, and describes the functions including how to monitor and make settings for the PLC. It
also lists the errors during operation and provides probable causes and countermeasures for trouble-
shooting.
Section 12 provides information on hardware and software errors that occur during CP1L-EL/EM
operation.
Section 13 provides inspection and maintenance information.
Appendices provide product lists, dimensions, tables of Auxiliary Area allocations, and a memory
map.

xvii
Related Manuals
The following manuals are used for the CP1L-EL/EM CPU Units. Refer to these manuals as required.
Cat. No. Model numbers Manual name Description
W516 CP1L-EL20D@-@
CP1L-EM30D@-@
CP1L-EM40D@-@
SYSMAC CP Series
CP1L-EL/EM CPU
Unit Operation Man-
ual (this manual)
Provides the following information on the CP Series:
• Overview, design, installation, maintenance, and
other basic specifications
•Features
•System configuration
• Mounting and wiring
•I/O memory allocation
•Troubleshooting
Use this manual together with the CP1L Program-
mable Controllers Programming Manual (W451).
W451 CP1H-X40D@-@
CP1H-XA40D@-@
CP1H-Y20DT-D
CP1L-L10D@-@
CP1L-L14D@-@
CP1L-L20D@-@
CP1L-M30D@-@
CP1L-M40D@-@
CP1L-M60D@-@
SYSMAC CP Series
CP1H /CP1L CPU
Unit Programming
Manual
Provides the following information on programming
the CP Series:
•Programming methods
•Tasks
• Programming instructions
W461 CP1L-L10D@-@
CP1L-L14D@-@
CP1L-L20D@-@
CP1L-M30D@-@
CP1L-M40D@-@
CP1L-M60D@-@
SYSMAC CP Series
CP1L CPU Unit Intro-
duction Manual
Describes basic setup methods of CP1L PLCs:
•Basic configuration and component names
• Mounting and wiring
• Programming, data transfer, and debugging using
the CX-Programmer
•Application program examples
W446 CXONE-AL@@C-V4
CXONE-AL@@D-V4 SYSMAC CX-Pro-
grammer Operation
Manual
Provides information on how to use the CX-Pro-
grammer for all functionality except for function
blocks.
W447 CXONE-AL@@C-V4
CXONE-AL@@D-V4 CX-Programmer Operation Manual
Function Blocks/
Structured Text
Explains how to use the CX-Programmer software's
function block and structured text functions. For
explanations of other shared CX-Programmer func-
tions, refer to the CX-Programmer Operation Man-
ual (W446).
W463 CXONE-AL@@C-V4
CXONE-AL@@D-V4 CX-One Setup Man- ual Installation and overview of CX-One FA Integrated Tool Package.
W464 CXONE-AL@@C-V4
CXONE-AL@@D-V4 CX-Integrator Opera- tion Manual Describes CX-Integrator operating methods, e.g., for setting up and monitoring networks.
W344 WS02-PSTC1-E CX-Protocol Opera-
tion Manual Provides operating procedures for creating protocol macros (i.e., communications sequences) with the
CX-Protocol and other information on protocol mac-
ros.
The CX-Protocol is required to create protocol mac-
ros for user-specific serial communications or to
customize the standard system protocols.

xviii
W342 CS1G/H-CPU@@H
CS1G/H-CPU@@-V1
CS1D-CPU@@H
CS1D-CPU@@S
CS1W-SCU@@-V1
CS1W-SCB@@-V1
CJ1G/H-CPU@@H
CJ1G-CPU@@P
CJ1M-CPU@@
CJ1G-CPU@@
CJ1W-SCU@@-V1
SYSMAC CS/CJ/CP/
NSJ-series Communi-
cations Commands
Reference Manual
Describes commands addressed to CS-series, CJ-
series, and CP-series CPU Units, including C-mode
commands and FINS commands.
Note This manual describes on commands
address to CPU Units regardless of the com-
munications path. (CPU Unit serial ports,
Serial Communications Unit/Board ports, and
Communications Unit ports can be used.)
Refer to the relevant operation manuals for
information on commands addresses to Spe-
cial I/O Units and CPU Bus Units.
W420 CS1W-ETN21
CJ1W-ETN21 Ethernet Units Opera- tion Manual Construc-
tion of Networks
Provides information on operating and installing
100Base-TX Ethernet Units, including details on
basic settings and FINS communications.
Refer to the Communications Commands Refer-
ence Manual (W342) for details on FINS commands
that can be sent to CS-series and CJ-series CPU
Units when using the FINS communications ser-
vice.
W421 CS1W-ETN21
CJ1W-ETN21 Ethernet Units Opera- tion Manual Construc-
tion of Applications
Provides information on constructing host applica-
tions for 100Base-TX Ethernet Units, including func-
tions for sending/receiving mail, socket service,
automatic clock adjustment, FTP server functions,
and FINS communications.
Cat. No. Model numbers Manual name Description

xix
Terms and Conditions Agreement
Warranty and Limitations of Liability
WARRANTIES
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for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by
Omron). Omron disclaims all other warranties, express or implied.
• Limitations
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-
INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE
PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS
WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on
infringement by the Products or otherwise of any intellectual property right.
• Buyer Remedy
Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally
shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying
Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the
purchase price of the non-complying Product; provided that in no event shall Omron be responsible for
warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s
analysis confirms that the Products were properly handled, stored, installed and maintained and not
subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer
must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the
suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or
environments. Any advice, recommendations or information given orally or in writing, are not to be
construed as an amendment or addition to the above warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
LIMITATION ON LIABILITY; ETC
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT,
WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which
liability is asserted.

xx
Application Considerations
SUITABILITY OF USE
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which
apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request,
Omron will provide applicable third party certification documents identifying ratings and limitations of use
which apply to the Product. This information by itself is not sufficient for a complete determination of the
suitability of the Product in combination with the end product, machine, system, or other application or use.
Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to
Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED
FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any
consequence thereof.