基于dsPIC控制器的J1939-profibus-DP总线桥的设计与应用  

Design of Bus bridge Between J1939 and PROFIBUS-DP Using dsPIC Controller

作　　者：肖红翼[1] 高建民[1] 刘洪亮 

机构地区：[1]长江大学电子信息学院,湖北荆州434023 [2]中石化第四石油机械厂自动化所,湖北荆州434024

出　　处：《计算机测量与控制》2012年第8期2217-2219,2243,共4页Computer Measurement &Control

摘　　要：随着PROFIBUS总线在工业领域的发展,越来越多的现场仪表,设备都提出了PROFIBUS总线通信的要求;基于这种通信要求,采用dsPIC高性能数字信号控制器和专用通信芯片VPC3+C相结合的方案,设计了一种J1939-profibus-DP总线桥,并详细介绍了总线桥的总体结构,硬件接口电路和软件流程图;该总线桥已成功应用于中石化第四石油机械厂压裂车控制系统,为实现J1939协议和profibus-DP协议的相互转换提供了一种切实、有效的解决方案。With the development of PROFIBUS in industry, increasing local instruments and equipments require PROFIBUS communica- tion interface. The J1939--PROFIBUS--DP bus bridge was designed by combining dsPIC digital signal controller and intelligent communiea tion chip VPC3＋C. This paper introduced overall structure, hardware interface circuit and flow chart of software for bus bridge. The bus bridge has been successfully applied in automatic control system for a machinery factory of SINOPEC, which provided a effective solutions for protocol convertor between J1939 and PROFIBUS--DP.

关 键 词：J1939 PROFIBUS--DP 总线桥 dsPIC控制器 VPC3+C 

分 类 号：TN919[电子电信—通信与信息系统]