FIELD: electricity.
SUBSTANCE: processing unit for application in process control system includes output electrical diagram for connection of process control circuit with current control circuit going through it to transfer process-related information. Method of processing consists in that failure status is defined in processing unit connected to process control circuit. Output electrical diagram is disconnected as a response to the detected failure status. Output diagram is designed to control current in process control circuit. Circuit current is controlled until the required level is achieved at the stage of output electrical diagram disconnection.
EFFECT: output electrical diagram disconnection and setting of electrical current at the required level.
49 cl, 8 dwg
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