Efficient PDO Transmitted Slave Station Design Based on CANopen Protocol

doi:10.3969/j.issn.1006-2475.2013.12.027

Abstract

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.
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Key words: CAN bus, CANopen protocol, PDO, I/O module

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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