开关量防抖滤波功能块梯形图和SCL代码请参考下面文章链接：

https://rxxw-control.blog.csdn.net/article/details/134936233https://rxxw-control.blog.csdn.net/article/details/134936233三菱PLC防抖滤波的另一种写法如下

https://rxxw-control.blog.csdn.net/article/details/125649834