Mitsubishi Electric IQSS-R-E Reference Manual page 213

■Communication load
When data is backed up or restored, the load of the service processing in the CPU module is temporarily increased.
Consequently, a communication response will be slow and a timeout error may occur in other communications.
To avoid a timeout error, review the value set for "Device/Label Access Service Processing Setting".
[CPU Parameter]  [Service Processing Setting]  [Device/Label Access Service Processing Setting]
■Change of backup folders/data
Do not change a backup folder name, configuration, or saved file.
Otherwise, the data may not be restored properly.
For the backup file capacity, refer to the following section.
Page 368 Backup File Capacity
8
8 CC-Link
211
8.4 Backing up/Restoring Data of Devices Supporting iQSS