集成以太网接口的PROFIBUS 现场总线智能主站的开发.PDF

　2005 年 仪 表 技 术 与 传 感 器 2005 　 　第 8 期 Instrument Technique and Sensor No 8 　 集成以太网接口的 PROFIBUS 现场总线智能主站的开发 方彦军 ,胥 　军 (武汉大学自动化系 ,湖北 武汉 　430072) 　　摘要 :针对现场总线协议的现状 ,提出了开发集成以太网接口的 PROFIBUS 智能主站的重要意义。 分析和研究了 PROFIBUS 协议的框架和主站的状态机制 ,在此基础上从主站的硬件和软件设计两个方 面对开发 PROFIBUS 主站的过程进行了详细描述。采用基于 ARM7TDMI 内核的微处理器 S3C4510B ,可 以很好地与 PROFIBUS 主站协议芯片接口 ,扩展以太网接口电路与工业以太网连接。 关键词 :PROFIBUS ; 以太网;智能主站 ( ) 中图分类号:TP393 　　文献标识码 :A 　　文章编号 :1002 - 1841 2005 08 - 0037 - 02 Development on PROFIBUS Intelligent Master Integrated with Ethernet Interface FANG Yanjun , XU Jun ( ) Automation Department of Wuhan University ,Wuhan 430072 ,China Abstract :The significance of developing intelligent PROFIBUS master station was presented. The frame of PROFIBUS protocol and the sate machine of master station were analyzed and investigated. Based on the analysis results ,the development process of PROFIBUS master station was described in detail from two aspects of hardware and software designing. Adopting the microprocessor S3C4510B will have an easy access to the protocol chip ASPC2 ,and it will make it easy to develop Ethernet interface circuit for connection to the in dustry Ethernet ,thus provided a lowcost solution for converting from Fieldbus control technology to industry Ethernet control technology. Key Words :PROFIBUS; Ethernet ; Intelligent Master 1 　PROFIBUS 协议框架 为 , 以确保它们符合一致性。状态机制见图 1[2 ] 。