Intelligent substation secondary equipment mirror image debugging platform board card identification circuit

The utility model discloses an intelligent substation secondary equipment mirror image debugging platform board card identification circuit which comprises a bus transceiver, a multi-input OR gate module and a plurality of XOR gates which are arranged on a board card. An input pin of each XOR gate is connected with a corresponding lead of a slot address bus on the bus backboard and a corresponding slot address setting level, an output end of each XOR gate is connected with an input end of the multi-input OR gate module, and an output end of the multi-input OR gate module is connected with a low level enabling end of the bus transceiver. The device can be applied to a case type power system test device of a plug-in card type, so that a power system can scan and record the board card insertion condition and the type of the board card in each slot on the bus backboard before being powered on each time; therefore, correct control of the master control system on each board card and normal communication between eac