Restoration Starts Once Cpu Is Supplied With Power - Delta AS Series Operation Manual

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7.8 Restoration Starts Once CPU is supplied with Power

When the backup file in the memory card is consistent with the specific path and file name, the CPU can

perform restoration once it is supplied with power. During restoration, the CPU LED and Error LED blinks

alternatively and SM452 flag is ON. After restoration is done, the CPU LED and Error LED stops blinking and

SM452 flag is OFF.

Operation Steps:

(1) Set up the backup file path and file name for the memory card backup file. The filename of the backup file

is BACKUP.dup and the backup file paths for AS100, AS200 and AS300 are shown below.

AS100: Memory card root directory\SDCard\PLC CARD\AS100\SysDup\AS200_BACKUP.dup

AS200: Memory card root directory\SDCard\PLC CARD\AS200\SysDup\AS200_BACKUP.dup

AS300: Memory card root directory\SDCard\PLC CARD\AS300\SysDup\AS300_BACKUP.dup

Insert the memory card into the card slot when the CPU power is off.

(2) When the CPU power is on, it automatically checks if the memory card data is consistent with the PLC

data. If not, the restoration begins. The data check is specifically on the data in CPU programs and

HWCONFIG parameters.

(3) During the restoration, the CPU LED and Error LED blinks alternatively. Once the restoration is done, the

blinking stops.

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