摘要
采用比较指令和一个定时器实现交通灯控制,与采用顺序控制指令和多个定时器实现交通灯控制相比,设计程序简单且直观清晰.
The PLC controlled traffic lights adopt CMP instructions and a timer. It is believed to be simpler and easier to understand than the sequential control instructions by multiple timers.
出处
《石家庄职业技术学院学报》
2011年第6期39-41,共3页
Journal of Shijiazhuang College of Applied Technology
关键词
交通灯
PLC
比较指令
traffic light
PLC
CMP instruction
