PAC以太网接口的设计与研究  

Design of Ethernet Interface for the PAC

作　　者：叶建平[1] 郑萍[1] 李建平[1] 杨鸽[1] 

机构地区：[1]西华大学电气信息学院,四川成都610039

出　　处：《实验室研究与探索》2013年第10期87-92,共6页Research and Exploration In Laboratory

基　　金：四川省教育厅重点项目(09ZA115);西华大学研究生创新基金项目(Ycjj201256)

摘　　要：目前控制系统趋于开放性与网络化,针对自主研发的可编程自动化控制器,提出了一种适用于工业控制的以太网接口的软硬件设计方案。给出了以太网网络接口硬件电路的设计,在接口的软件方面讨论了以太网控制芯片驱动程序和应用层基于Socket套接字的客户端/服务器程序,并给出了优化思路。在此基础上,还分析了如何实现PAC的现场总线接口与以太网技术无缝连接,说明了以太网和现场总线控制网络的互连方法。测试结果表明:该设计方案大大提高了PAC的灵活性、开放性以及PAC的组网能力,使之更加适用于工业控制。Currently, control systems tend to open and networked. For programmahle automation controller （PAC） independently researched and developed by authors, the Ethernet interface hardware and software are design fl^r industrial control. Ethernet controller ehip drivers and application layer Ethernel network interface hardware circuit design, software interface to Socket -- based client/server program, and optimization ideas are also discussed. On these basis, the analysis of the connection of the PAC fieldbus interface and Ethernet technology seamless, and connection of Ethernet and fieldhus control network are presneted. The test results show that the design greatly improves the PAC flexibility, openness, and PAC＇s networking capability, makes it more suitable for industrial control.

关 键 词：PAC 以太网驱动程序 客户端 服务器 现场总线 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]