Abstract
PLC in moves materials in the car automatic control system's application. The early time moves materials the car electric control system much the complicated system which composes for the relay - contact device, this kind of system existence design cycle is long, the volume is big, the cost higher flaw, does not have the data processing and the correspondence function nearly, must have the specialist to be responsible to operate. Applies PLC moves materials the car electric control system, may realize moves materials car's automated control, reduces system's operating cost. PLC moves materials the car electric control system to have the segment to be simple, the control speed is quick, the precision is high, the reliability and the maintainability are good, merits and so on installment, service and transformation convenience.
key word: Moves materials the car PLC automatic control hardware and software design
