| 摘要 |
PURPOSE: A method for corresponding PLD(Programming Loading Data) according to processor duplexing is provided to store a PLD change command in a temporary buffer of an active processor if a standby processor is not available for a PLD changing operation and transmit the stored command to the standby processor to make PLD correspond if the standby processor is in a normal state. CONSTITUTION: When a PLD change command is carried out(S11), an operating station transfers the command to an active processor(S13). If the active processor is not available to change the PLD, it stores the PLD change command specification in a temporary buffer(S14). The active processor transfers an update result according to storing of the change command specification to the operating station(S15). The operating station performs an updating on its own PLD(S16). When the standby processor transfers information that it is in a normal state upon completion of loading to the active processor(S17), the active processor transfers the PLD change command specification stored in the temporary buffer to the standby processor(S18). The standby processor updates the PLD on the basis of the PLD change command specification received from the active processor(S19).
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