Datasheet

4
CJ1M-CPU1@
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