浅谈SFC在西门子S7-1200程序设计教学中的应用

功能流程图语言作为PLC的编程语言之一,在步进控制程序设计中占有很大的优势。能熟练的运用功能流程图语言,学生对复杂控制系统的设计能力将大大提高。西门子S7-1200没有专门的状态器,本文针对此问题,探讨如何在没有专用状态器的情况下应用状态转移图设计思路进行控制程序设计。

The function flow chart language as one of the PLC programming language,on the step control program design.has a lot of advantages. Proficiency in the use of function flowchart language, studentswill greatly improve the a- bility of the complex eontrolsystem design. Siemens S7-300 no special device for the language, this paper, discusses the application of the state transition diagramdesigu of the control program design in the absence of special state con- trol of the situation.