Omron CJ2 User Manual

8 Backup Operations
8-10
CJ2 CPU Unit Hardware User’s Manual
The status of the Memory Card Power (MCPWR) indicator shows whether a simple backup operation
has been completed normally or not.
8-3-3 Verifying Backup Operations with Indicators
Backup operation
Normal completion*
1
Error occurred
MCPWR status MCPWR status Error
Backing up data from
the CPU Unit to the
Memory Card
The data was not backed up due to one of the following
errors, and no backup file was created.
• Insufficient Memory Card capacity
• Memory error in CPU Unit
• I/O bus error
• Data was not read from the Unit to be backed up.
MCPWR Indicator
OPEN
PERIPHERAL
BUSY
MCPWR
MCPWR
MCPWR
MCPWR
MCPWR
Lit
Remains lit while the
Memory Card Power
Switch is pressed.
Flashes once.
Lit while writing.
OFF after data is
written.
MCPWR
MCPWR
Lit
Remains lit while
the Memory Card
Power Switch is
pressed.
Remains
flashing.

Omron CJ2 Specifications

General

Model	CJ2
Manufacturer	Omron
Type	Programmable Logic Controller (PLC)
CPU Units	Multiple models available (e.g., CJ2M, CJ2H)
Number of I/O Points	Up to 2, 560 points
Communication Ports	Ethernet/IP, EtherCAT, USB, Serial
Expansion	Yes, via I/O Units and Special I/O Units
I/O Control Method	Cyclic Scan, Interrupt
Programming Language	Ladder diagram, structured text, function block diagram, sequential function chart, instruction list
Built-in I/O	Available on some models (e.g., CJ2M)
Ethernet Port	Yes, 1 port (depending on CPU Unit)
Serial Ports	RS-232C, RS-422/485 (configurable)
USB Port	Yes (for programming and monitoring)
Operating Temperature	0°C to 55°C
Storage Temperature	-25 to 70°C
Humidity	10 to 95% RH (non-condensing)
Vibration Resistance	10 to 57 Hz, Amplitude: 0.075 mm, 57 to 150 Hz, Acceleration: 1 G, X, Y, and Z directions, 80 min each
Power Supply Voltage	24 VDC or 100 to 240 VAC (depending on CPU Unit)