电动阀的FB程序功能块
我们在项目中经常遇到对电动阀的控制。尤其是在做水处理，污水处理这类项目的时候，电动阀少则十几个，多则几十个。而电动阀又不电磁阀那样简单，为了精简程序可以使用模块化编程。
可以将电动阀的FB功能块分成5个网络段来实现。
FB块接口的定义。
开阀程序
关阀程序
阀门状态
阀门故障
开阀超时复位
在Main块中调用FB功能块。
我们在项目中经常遇到对电动阀的控制。尤其是在做水处理，污水处理这类项目的时候，电动阀少则十几个，多则几十个。而电动阀又不电磁阀那样简单，为了精简程序可以使用模块化编程。
可以将电动阀的FB功能块分成5个网络段来实现。
FB块接口的定义。
开阀程序
关阀程序
阀门状态
阀门故障
开阀超时复位
在Main块中调用FB功能块。
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