PLC程序开发中的结构化编写方法

The Structural Composition Method in the PLC Program Development

本文描述了软件工程中的结构化思想在PLC编程中的一种运用方法,为自控项目中的PLC编程提供了一种方法论。通过分层次的编程来构成PLC程序,采用这种方法可以实现多人协作,为大型的控制程序进行共同工作,编写出风格一致,稳健可靠的程序,文中通过一个例子对这种方法进行了说明。

This paper describes a sort of composition method in the PLC programming development depending on structural idea, and provides one methodology for PLC programming. The PLC code is made of the layered programming. The kind of programming style can achieve multiple user collaboration, and provide the same manner and robust performance for the big control projects which need the multiple user collaboration. Meanwhile, we explain the method by an example in this paper.