摘要
研究典型的三地点控制同一盏灯的PLC控制电路和用户程序设计,可借鉴应用到四地点、五地点甚至更多地点控制同一被控对象的PLC控制系统,取代继电-接触器控制系统,充分发挥PLC功能强大、编程灵活、易于扩充等优点,更好地满足用户需求。
The PLCA control circuit and user programme design was explored and used for the control of one light at three different locations,which can be used for reference of the construction of the PLC control system for the control of one object at four locations,five locations or even more locations to replace relay-contactor control system so that the advantages of PLC such as being powerful in function,flexible in programming and liable to expansion,etc.can be given full play to meet the users’need.
关键词
PLC
三地点控制电路
程序设计
PLC
three-location control circuit
programme design
