Chapter 22 Cpu Module Data Backup/Restoration Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

22
CPU MODULE DATA BACKUP/RESTORATION
FUNCTION
This function backs up data such as program files, a parameter file, and device/label data
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.
SD memory card
$MELPRJ$
Backup
CPU
20160101
00001
Program memory
Data memory
00002
20160102
The following table lists the backup and restoration methods of the CPU module data backup/restoration function.
Function
Backup function
Restoration function
*2 When using the automatic restoration with the SD CARD OFF button, set it before the backup processing. After setting, execute each
backup processing. ( Page 319 Settings for automatic restoration with the SD CARD OFF button)
The restoration function modifies programs, parameters, or device/label data of the CPU module. After
restoration, check the restored data carefully before an actual operation. (Check the data with an engineering
tool.)
When using the CPU module data backup/restoration function, check the versions of the CPU module and
engineering tool used. ( Page 747 Added and Enhanced Functions)
22 CPU MODULE DATA BACKUP/RESTORATION FUNCTION
308
Device/label memory
Device/label data
Backup processing triggered by turning on SM1351
Automatic backup using SD944
Automatic restoration using SD955
Automatic restoration with the SD CARD OFF button
*1
of a CPU module to an SD
CPU module
Backup
Program memory
Device/label memory
Restoration
Data memory
Device/label data
Reference
Page 316 Backup processing triggered by turning on SM1351
Page 317 Automatic backup using SD944
Page 326 Automatic restoration using SD955
*2
Page 328 Automatic restoration with the SD CARD OFF button