Mitsubishi Electric melsec q00ujcpu User Manual page 309

(2) Operation for restoring backup data
Figure 6.122 shows operation for restoration.
Restoration from GX Developer
Restoration is
performed again.
Restoration failed.
4: Restoration error
Restoration is suspended.
After restoration, power off and then on the
A value indicating restoration status is stored in SD693 (Restoration status).
Status
Before restoration start
Restoration in execution
Restoration completed
Restoration error
(3) Operation of special relay and special register
Figure 6.123 shows the operation of SM692 (Restoration complete flag) at restoration.
(Restoration
complete flag)
*1: For details of special relays and special registers for restoration, refer to CHAPTER 12.
6 - 158
Start
1: Before restoration start
Mount a memory card storing the
backup data to the CPU module and
restore the data with GX Developer.
2: Restoration in execution
Restoration is completed.
3: Restoration completed
End
CPU module or reset the CPU module.
Figure 6.122 Operation for restoration
Table6.57 Status at restoration
Restoration is not performed.
Restoration is in execution.
Restoration is normally completed.
Restoration failed due to an error.
Before
restoration start
SM692
On
Off
Figure 6.123 Operation of the special relay
Automatic restoration
Restoration is
performed again.
Restoration failed.
4: Restoration error
After restoration, the CPU module can continue operation.
Description
*1
Restoration in
execution
Start
1: Before restoration start
Mount a memory card storing the backup data
to the CPU module and power off and then on
the CPU module or reset the CPU module.
2: Restoration in execution
Restoration is completed.
3: Restoration completed
End
Powering off and then on the CPU module or
resetting the CPU module is unnecessary.
Value stored in SD693
0
H
1
H
2
H
FF
H
Restoration
completed