【摘要】 软PLC技术是目前工业自动化领域逐渐兴起的一项基于PC的新型控制技术。软PLC具有强大的数据处理能力和网络通讯能力,并具有开放的体系结构,能较好地满足现代工业自动化的要求。论文介绍了软PLC编辑系统的组成部分和各个部分的功能,详细说明了开发时所用的数据结构和算法。该系统选用Visual C++作为开发语言,采用面向对象的软件设计方法进行设计。系统由PLC语言编辑编译器和仿真器组成,能够使用梯形图和指令表两种语言进行编程,并具有软件仿真功能。更多还原

【Abstract】 SoftPLC technology is a newly arising control technique in the field of industrial automation & control technology based on PC.It has a great many advantages of open control system,stronger data processing and network communication capacity compared with traditional PLC,and meets need of modern industrial automation.Modules of the software system are introduced as well as their functions,data structure and algorithm when developed.This software is designed with object-oriented software design method by Visual C++.System comprises PLC language editor,complier and emulator,which can allow user to program with LD and IL,and simulate logical results of programs.更多还原