| 摘要 |
PROBLEM TO BE SOLVED: To provide a monitor system which surely backs up and stores operational information on an object device to be monitored and enables the monitor device and backup memory device, constituting the monitor system to quickly recover from a fault. SOLUTION: The backup memory device is equipped with doubled backup memories which are capable of plane switching, a memory control part which controls the doubled backup memories, and an insertion/extraction flag storage part which detects and stores the insertion/extraction state of the backup memory device, and the monitor device is equipped with a monitor circuit which receives the operational information from a monitored system, a work memory which stores the received operation information, and a plane information storage memory which stores plane information which shows whether the doubled backup memories of the backup memory device are in-use or at a standby. |
