Omron SYSMAC CS Series Operation Manual page 197

Back Up Function
Customizable Counter Unit
Flash memory
1. User program
2. DM area only for general-
purpose READ
3.Unit setup area (DM 6600 to
6655)
4. Information related to
extended special instructions
5. Information related to a
ladder library
Conditions for Executing
Back Up/Restore
Backing up data
Restoring data
Note Immediately after editing programs in program mode or setting data in the unit
setup area, the setting contents may not have been reflected to the data in the
Flash memory yet.
To back up the latest contents to memory card, turn OFF the unit once, then
ON again, or restart the unit before executing any back up operation.
Conditions for Executing Back Up
Data cannot be backed up in the memory card of CPU unit in the following
cases:
• When a ladder library with a "ladder library ID" is already saved in the
Flash memory, and if the "ladder library ID" does not match with the value
set in the unit set up area (DM 6625).
• When the operating mode of the unit is other than "Program mode".
Conditions for Executing Restore
Data cannot be restored from the memory card of CPU unit to the counter unit
in the following cases:
• When a ladder library is already saved in the Flash memory, and if the
back up data in the memory card of CPU unit does not contain the ladder
library.
Note: In this case, erase the ladder library first and then execute restore
again. Refer to Erasing a Ladder Library on page 171 for details.
• When the unit No. at back up does not match with the one at restore.
• When the unit model has changed since the last back up.
CPU Unit
ON
Back up data write (SR 23006)
Back up data read (SR 23007)
Section 7-13
Memory card
177