Description
拨码开关组装在一起,把各位拨码开关的COM端连在一起,接在PLC输入侧的COM端子上。每位拨码开关的4条数据线按一定顺序接在PLC的4个输入点上。由图可见,使用拨码开关要占用许多PLC输入点,所以不是十分必要的场合,一般不要采用这种方法。
Edinburgh Sensors Gascard II CH4 100%
Edinburgh Sensors Gascard II CH4 100%
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