Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 282

*1 The area used by the system may be overwritten after a restoration.
*2 Whether to be restored the device can be set with SD918 (Restoration function setting).
*3 Device data restored may be overwritten by the I/O refresh according to modules mounted on and refresh settings.
(3) Progression status of backup and restoration
Progression status of backup and restoration can be checked by SD1925(Number of backup/restoration
uncompleted files) or SD1926(Backup/restoration progression status). However, the progression status of
automatic restoration cannot be checked by the special register. For the operating status of automatic restoration,
check the LED on the front side of the CPU module. (
Special register
SD1925
SD1926
280
Displays the number of remaining files of backup and restoration.
• When a backup/restoration is started, the total number of backup/restoration files are stored.
• When a backup/restoration is completed, 0 is stored.
The progression status of backup/restoration is displayed with 0 to 100%.
Page 292, Section 3.32.2 (2) (c))
Description