The Application of PLC in the Four-wing Automatic Revolving Door

The hardware system constitution and software acquisition of four-wing automatic revolving door by the use of general phrase transducer and Mitsubishi FX series PLC is introduced in this paper. The I/O allotment and PLC trapezoid diagram procedure of the system are designed, and the phrase transducer parameters are established, and finally the running diagnostic procedures of revolving door is carried out.