RS-485总线上中继器的研究  

Study of repeater on RS-485 bus

作　　者：姜香菊[1] 

机构地区：[1]兰州交通大学自动控制研究所,兰州730070

出　　处：《信息技术》2004年第2期39-41,共3页Information Technology

摘　　要：就全电子化微机联锁系统中联锁机与采集机之间RS-485总线信号传输的距离上出现的问题提出讨论和分析而设计的,然后就其解决的方案进行硬件和软件设计。本方案准确、可靠,达到了预期的目的。The paper analyzed the problem of signal transmission distance on RS-485 bus between interlock machine and acquisition machine. Then introduced the designs of hardware and sofware of the scheme which can solve the problem above, the scheme is accurate and reliable, reached the desired goal.

关 键 词：RS—485总线 串行异步通信 单片机 

分 类 号：TN919.5[电子电信—通信与信息系统] TP368.2[电子电信—信息与通信工程]