Mitsubishi L02CPU

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3.30.1 Backup to SD memory card
This function can save data in the CPU module to an SD memory card. If an SD memory card is used in a running
system, data can be backed up by replacing the SD memory card with the one for storing a backup data.
(1) Procedure
*1 After preparation for backup is completed, the following function is disabled.
• Auto refresh of intelligent function module
*2 Do not perform the following during backup.
• Insertion and removal of an SD memory card
• Power-off
• Reset
Backup status can be checked in SD690.
SD690 value Status Description
0
H
Before backup start Backup is not started
1
H
Backup start prepared An SD memory card can be inserted/removed
2
H
Backup start preparation completed Set data to backup
3
H
Backup in execution Backup is in execution
4
H
Backup completed Backup has been completed
FF
H
Backup error Backup has failed due to an error
Start
Before backup start
Backup start setup request
from a programming tool
The backup start setup
contact is turned on.
Backup start prepared
Backup is ready to start.*
1
Backup start preparation completed
Backup start request
from a programming tool
The backup start contact
is turned on.
Backup in execution*
2
Backup to the SD memory card is completed.
Backup completed
End
Backup failed.
Backup error
Back up data again.