Mitsubishi Electric FX5 User Manual page 183

Data protected by security functions
■File password function
Unlock the file passwords of the files in the backup target CPU module. If any files to which file passwords have been set exist
in the CPU module, the files are not restored.
■Security key authentication function
Locked programs can be restored regardless of whether security keys have been written or not. However, when the security
key has not been written to the CPU module after the restoration processing, the program cannot be executed. Restore
unlocked backup data or set the same security key.
Abnormal completion of restoration
Since the restoration processing will be completed with an error, do not execute the restoration processing in the following
cases.
• Data in a backup folder has been deleted. (Do not delete the data in backup folders that are likely to be used for
restoration.)
• Backup data has problems. (Backup data has been changed or the CPU module was powered off during execution of the
backup processing.)
When the same name folder or file exists in the restoration target CPU module
If the name of a folder or file in the restoration target CPU module and the name of a folder or file in backup data are identical,
the folder or file in the module will be overwritten by that in the backup data.
Status of the restoration destination CPU module
If the status of the restoration destination CPU module differs from that of the CPU module at the backup processing (such as
programs or parameters), the restoration may not be executed.
When the backup data to be restored is backed up in a different status from that of the restoration destination CPU module,
store 0 (All target data) to SD954 (Restoration target data setting) and execute the automatic restoration.
Applying the restored data
There are parameters that are applied only when the CPU module power is turned OFF→ON or reset. Thus, if the data is
restored while operation is stopped, and then the state is changed from STOP to RUN, the CPU module may not run with the
backed up data. In this case, turn OFF→ON the power or reset the CPU module. The device/label data other than the latch
specified devices/labels is initialized when the CPU module power is turned OFF→ON or reset, so restore only the device/
label data again as needed.
Stop monitoring at restoration
Stop monitoring before executing the restoration processing.
When the restoration processing is executed, programs, parameters, and device/label values may not be properly monitored
because they are changing.
22 DATA BACKUP/RESTORATION FUNCTION
22.2 Restoration Function
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