Automatic Restoration Using Sd955 - Mitsubishi Electric FX5 User Manual

Automatic restoration using SD955

Backup data is automatically restored when the CPU module is powered on or is reset. When restoration is executed, the
CPU module backup data based on the following files in the designated folders are restored.
• System file for backing up CPU module data
• Backup data file for backing up CPU module data
• Device/label data file for backing up CPU module data
Operating procedure
1.
Set restoration target data with SD954 (restoration target data setting).
2.
Set restoration target folders with SD956 (Restoration target date folder setting) to SD958 (Restoration target number
folder setting). (However, this is not required when SD955 (restoration function setting) b13 (restoration target folder) is
turned ON in step 3.)
3.
Set each setting with the b1, b13 to 15
4.
Turn on the b0 (Auto restoration request) of SD955.
5.
Power on or reset the CPU module.
*1 Only 1 (only device/label data) is valid with firmware version earlier than "1.050".
*2 The b1 (initialization during automatic restoration) and b15 (operation after restoration setting) settings are required when the firmware
version is "1.050" and later.
If the restoration processing is completed with an error and SM959 (Data restoration error check flag) turns on, check SD959
(Restoration error cause), take actions, and then restore the data again as required.
• Since the special register set for the automatic restoration is a latch area, setting data is held.
• SD955 (Restoration function setting) holds its setting even after the CPU module is powered on or is reset.
Thus, if the CPU module is powered on or is reset while the b0 (Auto restoration request) of SD955 is on,
the automatic restoration is executed again. To not perform the automatic restoration when the CPU module
is powered on or is reset the next time, turn off b0 of SD955 after a restoration is completed and then power
on or reset the CPU module.
*2
of SD955.
*1
22 DATA BACKUP/RESTORATION FUNCTION
22.2 Restoration Function
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