摘要
本文以西门子S7-200型号PLC为例,用一个具体的实例介绍了PLC梯形图的三种顺序控制设计方法。通过比较分析,归纳总结了三种设计方法的不同编程思想和特点。
This paper introduces three sequential control design methods of PLC ladder diagram with an example, which based on the example of the kind of S7 -200 PLC from SIEMENS. Through comparison and analysis, the different characteristics and programming thoughts of the three design methods are summarized.
出处
《机床电器》
2007年第2期43-46,共4页
Machine Tool Electric Apparatus
