AH500 Hardware and Operation Manual
7.5.2
Restoring the System
Before a system restoration is executed, users have to make sure that the backup file AUTOEXEC.dup is
stored in a folder named SysDup in a memory card. After the system restoration is executed, the user
program, the parameter setting, the hardware configuration, and the network configuration in the memory card
are restored to a CPU module. In addition, if the data in the backup file includes the values on the device
memories, the data restored to the CPU module will include the values on the device memories.
Before a system restoration is executed, users have to disconnect a CPU module. The system backup
procedure is as follows.
(1) Make sure that the CPU module is disconnected, turn DIP switch 2 ON, and turn the other switches OFF.
(2) Restore the power supply. After the system detects that DIP switch 2 is ON, the system restoration is
executed. When the system restoration is executed, the SYSTEM LED indicator blinks. After the system
restoration is complete, the SYSTEM LED indicator is OFF.
* Whenever power is supplied to a CPU module, the system checks the state of DIP switch 2. If DIP switch 2
is turned ON, a system restoration is executed automatically. As a result, users must turn DIP switch 2 OFF
after a system restoration is complete. In addition, the hardware configuration and the backplanes which are
involved in a system restoration must be the same as those previously involved in the system backup in
order to prevent an error from occurring.
When the system restoration is executed, the SYSTEM LED
indicator blinks.
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