PLC运料小车控制系统方案设计书.doc.doc

automation and control, programmable logic controller (PLC) for its high reliability and simple

operation, has been formation of an industry trend.

The car used for transport materials is common in modern factories. Traditional transport

materials are mostly car relay control, relay control wiring has numerous shortcomings of the

high failure rate, and the repair is not easy to maintain the shortcoming. PLC applied to transport

materials to car electrical control system and can realize automatic control operation of the car

and reduce system operating costs. It is powerful, can be expanded to as many as 128 I/O points,

and can increase the special function modules or expansion boards. Communications and data

connectivity options make FX1N in volume, communications and special function modules such

important applications perfectly. The topics include: analysis of plant and a clear system control