开放式数控软PLC系统的研究  

Research on Soft PLC System of Open CNC

作　　者：王志学 李茂月[1] 刘献礼[1] 周肖阳 李玉强 

机构地区：[1]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2017年第6期1-8,共8页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金重点项目(51235003)

摘　　要：在开放式数控系统体系中,为了使软PLC结构开放,将软PLC系统分为了开发系统和运行系统两个模块。针对翻译型编译原理的软PLC不利于数控系统的开放性与灵活性这一问题,提出了依据解释型编译原理,利用逐行扫描,关键字匹配的方法来开发软PLC系统。研究了对指令表程序的逐行拾取和循环执行的解释型运行系统,并给出了具体的实施方案。为了解决Windows系统的非实时性问题,设计了基于Windows+RTX(Real-Time e Xtension)的软件开发平台,来满足运行系统的实时性。最后通过实例,验证了解释型软PLC系统功能的可靠性,实现了控制开放式数控系统逻辑指令功能的目的。In order to develop the soft PLC with open structure,the whole system based on the open CNC system is divided into two modules:the development system and the operating system.With the disadvantages of soft PLC of translation compile principle that reduce the openness and flexibility of CNC system,the proposed method broke the tradition,which uses the interpretative type compile theory,adapting progressive scan and keyword matching to develop soft PLC system.This study forces on the interpreted the operating system with the function of loop execution and progressive pickup,thereby,the corresponding solution is presented.Taking the non-real time of windows system into consideration,a platform of software based on Windows+RTX(Real-Time e Xtension)is designed to meet the real-time of the operating system.Finally,the result of the experiment shows that the proposed interpreted soft PLC system is reliable and effective.Furthermore,it can achieve the function to control logic instruction function of open architecture CNC system.

关 键 词：开放式数控 软PLC 运行系统 解释型编译 RTX 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]