Restoration Function - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

15.2

Restoration Function

This function restores backup data in the SD memory card to the CPU module.
Restoration target folder
Set restoration target data among backup data in the SD memory card with SD956 (Restoration target date folder setting) to
SD958 (Restoration target number folder setting). The latest backup data can be restored with the bit 13 of SD955
(Restoration function setting).
Special register
Bit 13 of SD955
SD957, SD956
SD958
*1 The latest data is the backup data with the largest number in the latest date folder.
Restoration target data
Restoration target data is set with SD954 (Restoration target data setting).
Value of SD954
0
1
2
Restoration of the special relay and special register
Set whether to restore the special relay and special register with the bit 14 of SD955.
Bit 14 of SD955
Off
On
The following special relay/register areas, which are used for the CPU module data backup/restoration function, will not be
restored even though bit14 of SD955 is on.
• SM953, SM959, SM961, SM1350, SM1351, SM1353, SM1354, SM1356, SD953, SD959, SD1350, SD1351, SD1353
Description
Set the restoration function setting with bit patterns.
Off: Data specified with the restoration target folders is restored.
*1
On: The latest data is restored.
Specify a date folder of the restoration target data in BCD.
SD957 (upper): Year, SD956 (lower): Month and date
Specify the folder number (00001 to 32767) of restoration target data.
Restoration target data setting
All target data
Only device/label data
All target data excluding device/label data
Restoration target data setting
The special relay and special register are not restored.
The special relay and special register are restored.
15 CPU MODULE DATA BACKUP/RESTORATION FUNCTION
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15.2 Restoration Function
15