Omron CJ2 User Manual

8-7
8 Backup Operations
CJ2 CPU Unit Hardware User’s Manual
8-3 Simple Backup
8
8-3-1 Overview
8-3 Simple Backup
The simple backup operation can be used to back up all PLC data to a Memory Card, or to restore or
compare the data, by using a simple DIP switch setting and the Memory Card Power Switch. No Sup-
port Software is required.
8-3-1 Overview
Backup operation
DIP switch on front
of CPU Unit
Procedure
Pin 7
Backing up data to
the Memory Card
ON Press the Memory Card Power
Switch for three seconds.
The data can be backed up
regardless of the CPU Unit
operating mode.
Restoring data from
the Memory Card
Turn the PLC OFF and ON
again.
(Data restoration is given priority
over the automatic transfer at
startup.)
After the data has been
restored, the operating mode
will remain in PROGRAM mode
until the PLC power is turned
OFF.
Comparing data to
the Memory Card
OFF Press the Memory Card Power
Switch for three seconds.
The data can be compared
regardless of the CPU Unit
operating mode.
1.
2.
Power Supply Unit
Turn ON pin 7 on
the DIP switch.
Memory Card
Backup
Backing Up Data
Press the Memory Card
Power Switch.
Memory Card
Power Switch
All PLC data, including the following data.
Data in the CPU Unit:
User programs
Parameters
I/O memory
Symbol tables
Comment files
Program index file
Data in mounted Special I/O Units and
CPU Bus Units
CPU Unit

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)