22 DATA BACKUP/RESTORATION FUNCTION
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22
22 DATA BACKUP/RESTORATION FUNCTION
This function backs up the data memory and device/label data
*1
and the SFC program execution status
*2
of a CPU module to
an SD memory card. The data backed up in the SD memory card can be restored as required.
*1 Module access devices and buffer memory are excluded.
*2 Only the FX5U/FX5UC CPU modules are supported.
The following table lists the methods of the data backup/restoration.
• For supported version of FX5U/FX5UC CPU module data backup/restoration function, refer to Page
942 Added and Enhanced Functions.
• The CPU module device/label data is changed when restoration is executed. Thus, after restoration,
confirm the restored data carefully before using it. (Check the data with GX Works3.)
Function Reference
Backup function Backup processing triggered by turning on SM1351 (Normal mode) Page 213
Backup processing triggered by turning on SM1351 (CPU module auto exchange function) Page 214
Restoration function Restoration processing triggered by turning on SM1354 Page 220
Automatic restoration using SD955 Page 221
Restoration triggered by CPU module auto exchange Page 222
Data
memory
CPU module
Backup
CPU
20170101
00001
Device/
label data
00002
SD memory card
Backup
Restoration
20170102
Device/label
data
Data
memory
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