计算机与现代化
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赵 灿,王晓年,朱 劲,王祝萍
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ZHAO Can, WANG Xiao-nian, ZHU Jin, WANG Zhu-ping
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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。
关键词: CAN总线, CANopen协议, PDO, I/O模块
Abstract: 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 specification at the same time, this paper submitted the scheme which optimizes the PDO transmission efficiency. Besides, it constructed 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.
Key words: CAN bus, CANopen protocol, PDO, I/O module
赵 灿,王晓年,朱 劲,王祝萍 . 基于CANopen协议的高效PDO传输从站设计[J]. 计算机与现代化, doi: 10.3969/j.issn.1006-2475.2013.12.027 .
ZHAO Can, WANG Xiao-nian, ZHU Jin, WANG Zhu-ping . Efficient PDO Transmitted Slave Station Design Based on CANopen Protocol[J]. Computer and Modernization, doi: 10.3969/j.issn.1006-2475.2013.12.027 .
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链接本文: http://www.c-a-m.org.cn/CN/10.3969/j.issn.1006-2475.2013.12.027
http://www.c-a-m.org.cn/CN/Y2013/V12/I12/114