Restoration Triggered By Cpu Module Auto Exchange; Checking Restoration Errors - Mitsubishi Electric FX5 User Manual

Restoration triggered by CPU module auto exchange

At power ON or at reset, the backup data is automatically reset without the need for a command. When restoration is
executed, the CPU module backup data is restored based on the system file for the CPU module auto exchange function in
the SD memory card.
The CPU module auto exchange is executed only when the system file for the CPU module auto exchange
function created with backup during the CPU module auto exchange mode is stored on the SD memory card.
Operating procedure
1.
Insert the SD card containing the system file for CPU module auto exchange function created with backup during the
CPU module auto exchange mode into the CPU module.
2.
SM9350 (CPU module auto exchange function enable/disable flag) is turned OFF (enable). (For CPU module backed up
with the CPU module auto exchange mode, or CPU module restored with CPU module auto exchange)
3.
Power on or reset the CPU module.
When the restoration finishes correctly, the system turns SM9350 (CPU module auto exchange function enable/disable flag)
ON (disable).
If the restoration processing is completed with an error and SM959 (Data restoration error check flag) turns on, check SD959
(Restoration error cause), take actions, and then restore the data again as required.
• SM9350 (CPU module auto exchange function enable/disable flag) turns ON (enable) each time restoration
is executed with CPU module auto exchange, so unless SM9350 is turned OFF (enabled) specifically,
restoration with CPU module auto exchange will not be executed each time the power is turned OFF and
ON or reset.
• The CPU module target data is restored based on the system file for CPU module auto exchange function
so the SD955 (restore function setting) setting is disabled.

Checking restoration errors

• When an error occurs in the restoration processing triggered by turning on SM1354, a diagnostic error is not detected and
an error code is stored in SD959 (Restoration error cause). (Page 401 List of error codes)
• A diagnosis error will be detected if an error occurs during restoration with the SD955 automatic restoration and CPU
module auto exchange. An error code is also stored in SD959. (Page 401 List of error codes)
22 DATA BACKUP/RESTORATION FUNCTION
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22.2 Restoration Function