| 摘要 |
<P>PROBLEM TO BE SOLVED: To precisely specify a fault suspect device in a system which is redundantly constituted. <P>SOLUTION: A SUC device 1a sends control signals 5 and 6 to SWC devices 2a and 2b respectively. A state managing unit 21 of the SWC device 2c checks the state of its device according to the control signal 5 and transmits state signals 1 and 3 representing the result to the SUC devices 1a and 1b respectively. Similarly, a state managing unit 21 of the SWC device 2b checks the state of its device according to the control signal 6 and transmits state signals 2 and 4 representing the result to the SUC devices 1a and 1b respectively. A state managing unit 11 of the SUC device 1a detects whether there is a fault based upon the state signals 1 to 4, and specifies a fault suspect device when the fault occurs. <P>COPYRIGHT: (C)2008,JPO&INPIT |
