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AssigneeYokogawa Electric Corporation
InventorsHideharu YAJIMA, Yuuzou HASEGAWA, Kazuyuki ITO
Estimating the term…
A controller includes a main control unit that generates first output data for controlling an operation instrument based on reception data that is received from a measuring instrument. An IO device includes an auxiliary control unit that generates second output data for controlling the operation instrument based on the reception data received from the measuring instrument, an input/output unit that relays communication between both the main control unit and the auxiliary control unit and both the measuring instrument and the operation instrument, and a management unit that controls the input/output unit such that, when the cooperation has been impaired, the second output data generated by the auxiliary control unit is transmitted to the operation instrument.
A plant control system comprising:
A plant control method performed by a controller and an input/output device that are operated in cooperation with each other, the plant control method comprising:
Dependencies are inferred from the claim text.