实现S7-200PLC顺序控制的方法探析

Exploration into the Realization of S7-200PLC Sequence Control

在对PLC实现顺序控制的常用方法进行深入分析的基础上,提出了自己创新的一种实现顺序控制的方法——使用子程序的顺序控制梯形图编程方法,并介绍了应用实例。通过总结四种方法的原理,分析比较各自不同特点,供工程控制领域根据不同的控制场合选择最适合的编程方法。

A new innovative method to realize sequence control was discussed on the basis of a thorough analysis of common ways of PLC to realize sequence control. Examples of using subprogram sequence to control ladder diagram programming. The most adaptive programming method of project control in different situation was suggested through summarizing the principles of four methods and analyzing their characteristics.