嵌入式软PLC编程系统的设计

Design of Embedded Soft PLC Programming System

完成了一种在Windows操作环境下采用VC++开发工具设计的嵌入式软PLC编程系统。采用面向对象的设计思想,提出了描述软PLC梯形图元件的数据结构,以及对梯形图元件集合存储和交互的方案。该系统针对VC++的Document/View的结构,设计了软PLC编程系统的软件结构,分为编辑、编译和仿真等功能模块,且结合相应的算法实现,并重点介绍了梯形图程序的编辑和编译扫描原理。为低成本高效率实现嵌入式软PLC编程系统提出了新方案,也为软件开发人员提供一种软件设计的新思维。

This paper accomplished a sort of embedded soft PLC programming syst em using VC＋＋development tools in Windows operating environment. This system b rings a sort of data structure to describe soft PLC ladder-diagram components a nd a proposal of storaging ladder-diagram collections and interfacing with them , which adopts object-oriented design idea. Thereby, according to VC＋＋Documen t/View structure, designs the software architecture of soft PLC programming syst em, which is divided into editing, compiler and simulation modules, and combines with the corresponding algorithm to realize them, which emphasis the principle of editing and complier scanning. This realization for low cost and efficient em bedded soft PLC programming system solutions put forward a new thinking of the s oftware design for software developers.