嵌入式数控系统中的软PLC的应用与实现  

Realization & Implementation of Soft-PLC in Embedded Numerical Control System

作　　者：邬依林[1] 刘林东[1] 黄瑛[2] 

机构地区：[1]广东教育学院计算机科学系,510310 [2]华南理工大学自动化学院,510640

出　　处：《微计算机信息》2006年第07Z期34-36,254,共4页Control & Automation

基　　金：国家自然科学基金资助项目(60374036);广东省自然科学基金(031407);广州市重大科技攻关计划[2002Z1-D0051]的资助

摘　　要：介绍了软PLC技术的有关概念和组成结构,并把它和传统的硬PLC在控制方案上作了简要的比较。结合本课题数控机床控制系统的实际例子,在介绍了软PLC开发工具MatPLC的工作原理之后,详细描述了在Linux下基于MatPLC的软PLC的实现过程及实现过程中的注意事项。结果表明:所设计的软PLC通过PCI接口卡实现了对外围IO端口的读写操作,在嵌入式数控系统中应用稳定,节约了成本。The Soft-PLC technology is addressed, in which the related concepts and the architectures are mentioned. Moreover, the control schemes between in Soft-PLC and the traditional Hard-PLC are compared concisely. Combined with the practical example of CNC machine tool of control system, it has discussed the working mode of MatPLC development software. Henceforth, the realization process and the caution point of Soft-PLC based-on MatPLC working in Linux OS is explained in detail. As a result, Soft-PLC designed can read/write the peripheral IO via PCI interface card. The application of the Soft-PLC technology in embedded CNC system is relatively stable, and saves the cost.

关 键 词：软PLC 嵌入式数控系统 MatPLC软件 PCI接口卡 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]