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PLC顺序编程法如何急停

更新时间: 2020-07-10 00:00:00     

在梯形图的每一条指令上加上一个常闭点,此点的功能就是急停一按下,这个点就得电,常开变常闭,常闭就变成了常开。编写顺序的时候如果不用步进指令,最好使用置位和复位指令进行编写,因为如果单用线圈,容易出现双线圈输出的问题了。

关键词: plc 顺序 编程 如何

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