Integrated power master control plate and driving plate detecting device and method

The invention discloses an integrated power master control plate and driving plate detecting device. The integrated power master control plate and driving plate detecting device comprises a signal conversion unit and a monitoring system which are successively connected with a master control plate and a driving plate; the signal conversion unit is used for carrying out digital-to-analogue conversion on received digital quantity signals, carrying out voltage conversion on the received switch quantity signals and controlling on-off of received analogue quantity signals, and after conversion is finished, signals which require to be sent out are sent out; the monitoring system is used for transmitting various command signals to the signal conversion unit, is further used for receiving various feedback signals transmitted by the master control plate from the signal conversion unit, and is also used for displaying the proceeding states and data of various tests; and the command signals comprise signals for selection