Omron CPM2C User Manual

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SYSMAC and SYSMAC-CPT Support Software Appendix D
Transferring and Verifying DM Area Data
DM Area addresses not supported by the CPM2C cannot be transferred or monitored. DM 1024 to DM 6143
are not checked for DM Area verification.
Available Program Memory
Since the program capacity of the CQM1 (7,200 words) is greater than that of the CPM2C (4,096 words), the
display will show more free space than is actually available. Be sure to keep the actual program capacity in
mind while programming.
Program Transfer
When the program is transferred from the PC to the SSS with the default function code assignments, FUN18,
FUN19, FUN87, and FUN88 will be displayed as TKY, MCMP, DSW, and 7SEG. The instructions, however, will
be transferred correctly.
“???” will be displayed if any instructions not supported by the SSS are transferred from the CPM2C. Mnemon-
ics will be displayed, however, if any have been defined for the specified function code.
When the program is transferred from the SSS to the PC, TKY, MCMP, DSW, and 7SEG will be displayed on
the SSS, but will not be executed in the CPU Unit. They will be treated as NOP.
If expansion instructions are transferred to the PC with DM 6602 is set to the “default settings,” a message say-
ing that expansion instructions cannot be written because DIP switch pin 4 is OFF will be displayed. Change
the setting of DM 6602 to enable user settings to use expansion instructions. If instructions not supported by
the CPM2C are transferred to the PC, a message saying to set expansion instructions will be displayed, and
transfer will not be possible.
Expansion Instructions
It will not be possible to transfer the program if the function codes assigned to expansion instructions have
been changed from their default settings. A message to turn ON the DIP switch of the PC and execute again
will be displayed. Change the function code assignments to the CQM1 defaults shown in the following table
before programming.
If a CQM1 instruction that is not supported by the CPM2C is used in the program, an error will occur when the
program is transferred from the computer to the PC.
There are four CPM2C instructions (STUP(
−−), SYNC(−−), TIML(-−−), and TMHH(−−)) that are not supported
by the CQM1. These instructions can be used by transferring the expansion instructions from the CPM2C to
the SSS. This procedure is outlined in the following.
Function code Default CPM2C Assignments Default CQM1 Assignments
17 ASFT ASFT
18 --- TKY
19 --- MCMP
47 RXD RXD
48 TXD TXD
60 CMPL CMPL
61 INI INI
62 PRV PRV
63 CTBL CTBL
64 SPED SPED
65 PULS PULS
66 SCL SCL
67 BCNT BCNT
68 BCMP BCMP
69 STIM STIM
87 --- DSW
88 --- 7SEG
89 INT INT

Omron CPM2C Specifications

General

Type	Programmable Logic Controller (PLC)
Input Voltage	24 VDC
Number of Outputs	Up to 16
Communication Ports	RS-232C
Programming Language	Ladder Logic
Mounting	DIN rail
CPU	Built-in
Timer/Counter	256 timers/counters
Analog Input	Optional
Analog Output	Optional
Storage Temperature	-25°C to 70°C
Memory	4K words
Program Memory	4K words
Humidity	25 to 85% RH (non-condensing)

Summary

PRECAUTIONS

Safety Precautions

Critical safety warnings regarding grounding, live components, and external circuit safety measures.

Application Precautions

Crucial safety guidelines for system applications, emphasizing risk assessment and proper product use.

Operating Environment Precautions

Lists unsuitable locations and requirements for shielding against noise and environmental factors.

SECTION 1 Introduction

1-1 CPM2C Features and Functions

Introduces the CPM2C's special features, functions, system configurations, and capabilities.

1-2 System Configurations

Details possible system configurations, including CPU units, expansion units, and I/O units.

1-3 Structure and Operation

Explains CPU Unit internal structure, operating modes, and startup behavior.

1-6 Preparation for Operation

Outlines essential steps for initial system setup and Programming Console operation.

SECTION 2 Unit Components and Specifications

2-1 Specifications

Provides detailed technical specifications, including general, I/O, and power supply unit specs.

2-2 Unit Components

Describes physical components of CPU units, expansion I/O units, and various adapter units.

SECTION 3 Installation and Wiring

3-1 Design Precautions

Essential design considerations for power supply wiring, voltage, and safety circuits like interlocks.

3-3 Installing the CPM2C

Covers the procedure for installing the CPM2C unit and connecting expansion units.

3-4 Wiring and Connections

Provides fundamental information on wiring power supply, I/O terminals, connectors, and communication devices.

SECTION 4 Using a Programming Console

4-1 Using a Programming Console

Information on connecting and operating the Programming Console, including compatible models and mode switching.

4-2 Programming Console Operations

Details various operations like clearing memory, editing programs, searching, and monitoring functions.

4-3 Programming Example

Demonstrates writing a program using the console, including preparatory steps and a test run.

SECTION 5 Test Runs and Error Processing

5-1 Initial System Checks and Test Run Procedure

Outlines initial system checks, test runs, and flash memory precautions.

5-2 Self-diagnostic Functions

Explains error identification via messages, flags, and codes for accurate troubleshooting.

5-5 Troubleshooting Flowcharts

Provides visual flowcharts for diagnosing and resolving operational errors like power supply or I/O issues.

5-7 Battery Replacement

Details the procedure for replacing the backup battery with necessary safety warnings.

SECTION 6 Expansion Memory Unit

6-1 Overview

Introduces the Expansion Memory Unit, its memory areas, and general precautions for use.

6-2 Specifications and Nomenclature

Lists specifications and identifies components of the Expansion Memory Unit, including supported PCs and connectors.

6-3 Handling

Covers unit handling, including EEPROM mounting, PC connections, and program upload/download procedures.

SECTION 7 Simple Communications Unit

7-1 Introduction

Introduces the unit's features, system configuration, and component data processing methods.

7-3 Preparation for Operation

Details procedures for unit connections, switch settings, PC setup, and component configuration.

7-7 Error Processing

Explains detection and processing of fatal and non-fatal errors specific to the Simple Communications Unit.

7-9 Example Application

Demonstrates system configuration and DM settings for using the unit with temperature controllers.