Omron CJ - PROGRAMMING MANUAL 08-2008 Programming Manual page 279

Manipulating Files
Backing up data from the CPU Unit to the Memory
Card
Restoring data from the Memory Card to the CPU
Unit
Power ON
Comparing data between the CPU Unit and the
Memory Card
Memory Card
Power Switch
The following table provides a summary of the simple backup operations.
Backup operation
Backing up data to the Memory Card
Memory Card
Power Switch CPU Unit
Program
I/O memory
Parameter
area
Pin 7: ON
Restoring data from the Memory Card
CPU Unit
Program
I/O memory
Parameter
area
Pin 7: ON
Comparing data to the Memory Card
CPU Unit
Program
Compare
I/O memory
Parameter
area
Pin 7: OFF
Note 1. Refer to Verifying Backup Operations with Indicators on page 244 for de-
tails on the results of read, write, and compare operations.
2. Refer to 5-3-2 Operating Procedures for guidelines on the time required for
Memory Card backup operations.
Pin
status
Pin 7
ON
Memory
Card
ON
Memory
Card
OFF
Memory
Card
Section 5-2
Procedure
Press and hold the Memory Card
Power Switch for three seconds.
Turn the PLC OFF and ON again.
(See note 1.)
Press and hold the Memory Card
Power Switch for three seconds.
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