三菱PLC限幅器功能块(内嵌ST代码)

西门子PLC限幅器功能块的详细算法介绍和源代码，请查看下面文章链接：

https://rxxw-control.blog.csdn.net/article/details/128701050https://rxxw-control.blog.csdn.net/article/details/128701050信捷PLC限幅器功能块

https://rxxw-control.blog.csdn.net/article/details/131896752https://rxxw-control.blog.csdn.net/article/details/131896752

1、限幅器FB

2、接口定义

3、内嵌ST

?4、内嵌ST代码

IF INPUT>=Lower AND INPUT<=Upper THEN
OUTPUT:=INPUT;
END_IF;
IF INPUT>Upper THEN
OUTPUT:=Upper;
END_IF;
IF INPUT<Lower THEN
OUTPUT:=Lower;
END_IF;