一个按钮控制启停，程序怎么做

2020年11月1日下午4:43 • SIMATIC S7-200

一个按钮控制启停，程序怎么做

最佳答案

用按钮驱动一个计数器，判断计数值奇偶，奇数启动，偶数停止。

或者，用输出参与逻辑，例如输出Q0.0，若Q0.0为接通，就断开
；若Q0.0为断开，就接通。程序如下：

LD     I0.0
EU
AN     Q0.0
S      Q0.0, 1

LD     I0.0
EU
A      Q0.0
R      Q0.0, 1

东方神探说的对，这个程序不行，我再考虑一下。
试试这个：
LD     I0.0
EU
AN     Q0.0
R      M0.0, 1

LD     I0.0
EU
A      Q0.0
S      M0.0, 1

LD M0.0
= Q0.0
方法笨了些，但应该可以了。

提问者对于答案的评价：
可以

原创文章，作者：more0621，如若转载，请注明出处：https://www.zhaoplc.com/plc318180.html

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s7-300和 60台 s7-200通过 profibus通讯

上一篇 2020年11月1日下午4:43

我的笔记本能检测到PLC但是在下载的时候就会出现通讯错误我使用了TD400C

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SIMATIC S7-200

关于200子程序局部变量自动识别数量的问题

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