基于CANopen协议的高效PDO传输从站设计  

Efficient PDO Transmitted Slave Station Design Based on CANopen Protocol

作　　者：赵灿[1] 王晓年[1] 朱劲[1] 王祝萍[1] 

机构地区：[1]同济大学电子与信息工程学院,上海201804

出　　处：《计算机与现代化》2013年第12期114-118,共5页Computer and Modernization

基　　金：国家自然科学基金重大研究计划重点支持项目(91120308)

摘　　要：针对CAN现场总线的应用层CANopen协议,设计一种高效PDO传输的从站系统。本文通过对DS401规范的研究,在兼容SDO和PDO访问规范的同时,提出优化PDO传输效率的方案;构造基于CANopen协议的远程I/O采集模块的实现方法,给出详细的对对象字典实时读写的接口设计和访问流程。Focusing on the CANopen protocol of application layer of CAN fieldbus , we designed a kind of efficient PDO transfer scheme for slave station system .Based on the research of DS401 specification, and compatibility with SDO and PDO access spec-ification at the same time , this paper submitted the scheme which optimizes the PDO transmission efficiency .Besides , it con-structed interface implementation of remote I/O module, and gave a detailed design and access process on real-time reading and writing of the object dictionary .

关 键 词：CAN总线 CANOPEN协议 PDO I O模块 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]