【摘要】 论述了 型电弧坩埚制造机的 PLC控制设计过程 ,提出用简单明了的“ECRS”的四大原则分析设计梯形图的方法 ,阐述了 PLC在自动化控制中的应用所具有的优点和意义。更多还原

【Abstract】 The PLC controlling design process of type II electric arc crucible making machine is expounded. The method of analyzing and design of ladder diagram with the four major "ECRS" principles which are simple and clear is proposed. The advantages and significance of PCL employment in automatic control are discussed.更多还原