| 摘要 |
PROBLEM TO BE SOLVED: To provide a status assessment device capable of discriminately detecting the status of facilities without increasing the number of signal wires for monitoring the status thereof.SOLUTION: A status assessment device includes: a connection resistance group comprising a plurality of auxiliary contacts (1A, 1B,...) connected in series, and resistors (2A, 2B,...) of different resistance, each being connected in parallel with the respective auxiliary contacts; a voltage generation circuit 5C which is connected to one end of the connection resistance group which is supplied with control voltage 3 at the other end and generates output voltage corresponding to the resistance of the connection resistance group; and a detection assessment circuit 6 which assesses the open/closed status of each auxiliary contact on the basis of the output voltage of the voltage generation circuit 5C. |
