| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller for an instrument having improved control performance and usability while sharply improving productivity and reducing the cost by standardizing parts and simplifying wiring. SOLUTION: The apparatus includes signal wires 22, 24, a controller connected with the signal wires 22, 24, a sensor 27 connected with the signal wires and a DC power supply 23. The sensor 27 includes a detection element, storage means having an own identify code, transmission/reception means for delivering data to the controller through the signal wires, terminal side control means for incorporating data detected by the detector element and transmitting the same to the controller through transmission/reception means, storage means for supplying electric power to each means by changing it with electricity during the signal wire being at high electric potential while discharging electricity during the signal wire being at a low electric potential, and a power supply terminal for supplying power from the DC power supply to each means. Hereby, the controller hereby controls power supply from the DC power supply to the sensor. |
