顺序功能图在深孔钻床设计中的应用

Application of sequential function chart in deep hole drilling design

顺序功能图设计法以其编写规范可读性强在顺序控制系统中广泛应用。可编程控制器在编程指令中专门设置了顺序控制指令,以方便在顺序控制系统中进行设计。本文阐述了采用顺序功能图进行程序设计的方法和技巧,并以深孔钻床自动加工系统为例,重点介绍了顺序功能图在描述控制系统初始激活、急停、状态记忆和过载保护的处理方法和主要事项。

Sequence function chart design method for its writing specification readable in sequential control system widely used. Programmable controller in programming instructions set in the SFC,to facilitate in the sequence control system design. It is expounded in this article adopt the method of SFC in programming and skill.As a case study of deep hole drilling machine automatic processing system, SFC describes the control system is mainly introduced the initial state of activation, stop, memory and processing method of overload protection, etc.