多主结构485总线的设计与实现  

Design and realization of RS-485 bus with of multi-master mode

作　　者：宋晓伟[1] 解大[1] 

机构地区：[1]上海交通大学电气工程系,上海200240

出　　处：《电力系统通信》2008年第4期50-53,共4页Telecommunications for Electric Power System

摘　　要：文章实现了一种基于RS-485技术、通过共享RAM和总线竞争来实现的多主结构数据传输模式,该方式克服了传统RS-485总线数据传输方式在很多工业控制场合的局限性,提高了传输效率。The paper proposes a multi-master data transmission mode with the technique of RAM sharing and bus competition based on RS-485. It overcomes the limitation of traditional master-slave mode which is widely used in current industrial controlling system and can improve the data transmission efficiency appenently.

关 键 词：RS-485 多主结构 总线竞争 

分 类 号：TN913.3[电子电信—通信与信息系统]