MONITORING CONTROL SYSTEM, SENSOR, PROGRAM AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To reduce current consumption during searching an active sensor more than in the conventional practice. SOLUTION: In this monitoring control system, sensors are connected to a sensor line extending from a monitoring control unit 11 and the monitoring control unit 11 transmits a warning search signal to the sensor line (notifying line) receiving a warning signal when receiving the warning signal from a sensor connected to the sensor line, a sensor makes current consumption in the sensor prescribed holding current larger than in a monitoring mode when transmitting a warning signal, makes the current consumption in the sensor smaller than the holding current upon transmitting the warning signal when receiving a warning search signal from the monitoring control unit 11, and returns the current consumption in the sensor to the holding current and transmits a search response signal when responding to the warning search signal. COPYRIGHT: (C)2007,JPO&INPIT