摘要
介绍了可编程序控制器的时间外设定控制技术,列举出典型PLC外设定电路的结构类型和连接形式,并给出具体的梯形图控制电路实例。
This paper introduce the control technique that external time setting of programmable controller (PLC), some join form of the construction for external time setting of typical PLC and a example of pratical Ladder Diagram of control circuit are given.
关键词
可编程序控制器
时间外设定技术
控制器
Programmable controller\ \ External time setting technique\ \ Ladder diagram