| 摘要 |
PURPOSE:To prevent malfunction in case of a power failure by providing a flip- flop circuit which is set and reset with a control request signal and an answer signal, and outputting its output confirmation answer signal to an information processing circuit. CONSTITUTION:A control signal output circuit 5 is interposed between the information processing circuit 6 and a device 7 to be controlled. This output circuit 5 is equipped with the flip-flop circuit 1 which has output terminals 1a and 1b and a clear terminal 1c, and outputs a control signal to said circuit 7 to be controlled through the normally open contact 3a of a relay 3. The control request signal from the information processing circuit 6 is inputted to the 1st input terminal 5a of the flip-flop circuit 1 and held, and said relay 3 is excited through an NOT circuit 2 with the output signal from an output terminal 1b. Then when the circuit 7 to be controlled starts operating, its control answer signal is inputted to said clear terminal 1c to reset the flip-flop circuit 1, and an operation confirmation signal is outputted to an information processing circuit 5.
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