基于单片机的CAN-PROFIBUS-DP总线桥的设计  

Design of Bus-bridge Between CAN and Profibus Based on singlechip processor

作　　者：胡永红[1] 丁璐[1] 楚亚菲[1] 

机构地区：[1]西北工业大学第365研究所,陕西西安710072

出　　处：《计算机测量与控制》2009年第7期1341-1343,共3页Computer Measurement &Control

基　　金：十五预研基金资助项目(413250301)

摘　　要：针对目前自动化领域两种流行的现场总线CAN和Profibus通信协议标准互不相容的问题,提出了一种基于单片机、SPC3和SJA1000组建CAN-Profibus-DP总线桥的设计方案,以解决各总线协议标准相互协调与兼容的问题;文中重点阐述了单个CAN节点和单个Profibus-DP从站节点之间通信的硬件和软件设计与实现;该方法能很好地将CAN总线和Profibus-DP总线形成统一的多点测控网络,具有通信速度快,稳定的性高、低成本等特点,可应用于具有一站多级或多站伺服机构的工业控制系统中。Aiming at the problem of incompatible protoeots between CAN and Profibus, an implementing strategy of CAN--Profibus-- DP （Decentralized Periphery） bus--bridge based on singleehip processor. SPC3 and SJA1000 is proposed. The design method of the hardware and software for the interconnecting eommunieation between a CAN node and ap rofibus- DP slave node is described emphatically. The design is able to connect a CAN bus and ap rofobus--DP bus to form a united measuring and control network. The scheme features low cost, fast speed and high stability. It can be applied in a multi--level station or multi--station servo control system in the industry.

关 键 词：现场总线 总线桥 Profibus—DP CAN 

分 类 号：TP274.5[自动化与计算机技术—检测技术与自动化装置]