| 摘要 |
PURPOSE:To constitute a system having a high reliability without stopping the system even at the time of fault of a connecting point by duplicating an input part of a triple master control device, so that other control device can be connected in accordance with this dual input part. CONSTITUTION:System control devices 2a, 2b control an electric power system, and buses A, B connect inputs of master control devices 4a, 4b and 4c, and sequency control devices 3a, 3b. The command output of a command device 1 is inputted to the devices 3a, 3b, respectively, processed by the devices 3a, 3b, and thereafter, those outputs are read in the master control devices 4a, 4b and 4c through the buses A, B. In this case, in the devices 3a, 3b, when an abnormality monitoring circuit 20 decides abnormality, an output inhibiting command is given to an inhibiting circuit 30, by which a sequence control output 40 is outputted to the buses A, B. In such a way, a system having a high reliability is constituted. |
