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CJ1M-CPU1

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Unit Versions

Online editing

When the CPU Unit is in MONITOR or PROGRAM mode, multiple program sections ("circuits") of the user program can be

edited together. This function is not supported for block programming areas.

(With the CX-Programmer is used, multiple program sections of the user program can be edited together. When a Programming

Console is used, the program can be edited in mnemonics only.)

Program protection

Overwrite protection: Set using DIP switch.

Copy protection: Password set using CX-Programmer or Programming Consoles.

Error check

User-defined errors (i.e., user can define fatal errors and non-fatal errors)

The FPD(269) instruction can be used to check the execution time and logic of each programming block.

FAL and FALS instructions can be used with the CJ1M CPU Units to simulate errors.

Error log

Up to 20 errors are stored in the error log. Information includes the error code, error details, and the time the error occurred.

A CJ1M CPU Unit can be set so that user-defined FAL errors are not stored in the error log.

Serial communications

Built-in peripheral port: Programming Device (including Programming Console) connections, Host Links, NT Links Built-in RS-

232C port: Programming Device (excluding Programming Console) connections, Host Links, no-protocol communications,

NT Links, Serial Gateway (Compoway/F master)

Serial Communications Unit (sold separately): Protocol macros, Host Links, NT Links, Modbus-RTU slave, No-protocol,

Serial Gateway (Compoway/F master, Modbus master)

Clock

Provided on all models.

Accuracy:

Ambient temperature

Monthly error

55

°C

−3.5 min to +0.5 min

25

°C

−1.5 min to +1.5 min

0

°C

−3 min to +1 min

Note: Used to store the time when power is turned ON and when errors occur.

Power OFF detection time

AC Power Supply Unit: 10 to 25 ms (not fixed)

DC Power Supply Unit PD025: 2 to 5 ms; PD022: 2 to 10 ms

Power OFF detection delay time

0 to 10 ms (user-defined, default: 0 ms)

Note: Not supported when the CJ1W-PD022 Power Supply Unit is mounted.

Memory protection

Held Areas: Holding bits, contents of Data Memory and Extended Data Memory, and status of the counter Completion Flags

and present values.

Note: If the IOM Hold Bit in the Auxiliary Area is turned ON, and the PLC Setup is set to maintain the IOM Hold Bit status when

power to the PLC is turned ON, the contents of the CIO Area, the Work Area, part of the Auxiliary Area, timer Completion

Flag and PVs, Index Registers, and the Data Registers will be saved for up to 20 days.

Sending commands to a Host

Link computer

FINS commands can be sent to a computer connected via the Host Link System by executing Network Communications

Instructions from the PLC.

Remote programming and

monitoring

Host Link communications can be used for remote programming and remote monitoring through a Controller Link, Ethernet,

DeviceNet, or SYSMAC LINK network.

Communicating across network

levels

Remote programming and monitoring from Support Software and FINS message communications can be performed across

different network levels, even for different types of network.

Pre-Ver. 2.0: Three levels

Version 2.0 or later: Eight levels for Controller Link and Ethernet

networks (See note.), three levels for other networks.

Note: To communicate across eight levels, the CX-Integrator or the CX-Net in CX-Programmer version 4.0 or higher must be

used to set the routing tables.

Storing comments in CPU Unit

I/O comments can be stored as symbol table files in the Memory Card, EM file memory, or comment memory (see note).

Note: Comment memory is supported for CX-Programmer version 5.0 or higher and CS/CJ-series CPU Units with unit version

3.0 or later only.

Program check

Program checks are performed at the beginning of operation for items such as no END instruction and instruction errors.

CX-Programmer can also be used to check programs.

Control output signals

RUN output: The internal contacts will turn ON (close) while the CPU Unit is operating (CJ1W-PA205R).

Battery life

Battery Set for CJ1M CPU Units: CJ1W-BAT01

Self-diagnostics

CPU errors (watchdog timer), I/O bus errors, memory errors, and battery errors.

Other functions

Storage of number of times power has been interrupted.

(Stored in A514.)

Units

Models

Unit version

CJ1M CPU Units

CJ1M-CPU12/13

CJ1M-CPU22/23

Unit version 4.0

Unit version 3.0

Unit version 2.0

Pre-Ver. 2.0

CJ1M-CPU11/21

Unit version 4.0

Unit version 3.0

Unit version 2.0

Item

Specifications