Omron CJ - PROGRAMMING MANUAL 12-2009 - Page 285

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Manipulating Files Section 5-2
If the IOM Hold Bit (A50012) is ON and the PLC Setup is set to maintain
the IOM Hold Bit Status at Startup when the backup files are written, the
status of I/O memory data will be maintained when data is read from the
Memory Card.
If the Forced Status Hold Bit (A50013) is ON and the PLC Setup is set to
maintain the Forced Status Hold Bit Status at Startup when the backup
files are written, the status of force-set and force-reset bits will be main-
tained when data is read from the Memory Card.
Program Files
Parameter Files
Unit/Board Backup Files
Note 1. Unit addresses are as follows:
CPU Bus Units: Unit number + 10 Hex
Special I/O Units: Unit number + 20 Hex
Inner Board: E1 Hex
2. An error will not occur in the CPU Unit even if this file is missing when data
is transferred from the Memory Card to I/O memory, but an error will occur
in the Unit or Board if the data is not restored. Refer to the operation man-
ual for the specific Unit or Board for details on Unit or Board errors.
Note The CS1G/H-CPU@@(-V1) and CJ1@-CPU@@ CPU Units do not
support the Unit/Board backup function.
File name and
extension
Contents Backup from
CPU Unit to
Memory Card
(creating files)
Restore from
Memory Card
to CPU Unit
Comparing
Memory Card
to CPU Unit
Files required
when
restoring data
CPU Unit CS/CJ
BACKUP.OBJ Entire user program Yes Yes Yes Required in
Memory Card
File name and
extension
Contents Backup from
CPU Unit to
Memory Card
(creating files)
Restore from
Memory Card
to CPU Unit
Comparing
Memory Card
to CPU Unit
Files required
when
restoring data
CPU Unit CS/CJ
BACKUP.STD PLC Setup
Registered I/O tables
Routing tables
CPU Bus Unit setup
Etc.
Ye s Ye s Ye s R e q u i r e d i n
Memory Card
File name and
extension
Contents Backup from
CPU Unit to
Memory Card
(creating files)
Restore from
Memory Card
to CPU Unit
Comparing
Memory Card
to CPU Unit
Files required
when
restoring data
CPU Unit CS1-H, CS1D, CJ1-H, CJ1M, or CS1D CPU Unit only
BACKUP@@.PRM
(where @@ is the
unit address of the
Unit/Board being
backed up)
Backup data from the Unit or
Board with the specified unit
address (Specific contents
depends on the Unit or
Board.)
Ye s Ye s Ye s R e q u i r e d i n
Memory Card
(See note 2.)