| 摘要 |
A nuclear power plant control system includes control devices, and the control devices 30a and 30b each include arithmetic units that respectively execute arithmetic processing in parallel independently, based on detection results of detection units, and each output a control signal to control a countermeasure unit in accordance with an arithmetic result of the arithmetic processing, a transmission unit that sends out the control signal to the countermeasure unit, when the control signal is outputted from at least one of the arithmetic units, and a system management unit that performs control so as to inhibit the control signal outputted by the arithmetic unit as a test object from being sent out from the transmission unit while maintaining a state where the other arithmetic operation executes the arithmetic processing independently, when a test of either of the control devices is conducted.
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