摘要
介绍了现场总线技术的优点及发展概况，论述了一个现场总线通信网的设计． 该通信网的总线介质采用双绞线，遵循 Ｒ Ｓ－ ４８５ 通信协议，服务器端采用 Ｍｏｘａ 公司的 Ｃ－ １０２ Ｈ 通信卡与总线相连，各个现场设备本身具有 Ｒ Ｓ－ ４８５接口，用接线端子挂接在总线上，整个通信网采用主从式通信方式．
We introduce the merit and development of fieldbus technology, discuss the design of a fieldbus communication net. We use UTP as fieldbus in this system, and this net conforms to standard of RS-485. The server is connected with fieldbus by C102-H of MOXA. Every field instrument which has interface of RS-485 is connected with fieldbus by a connector. The way of main\|minor communication is adopted.
出处
《大庆石油学院学报》
CAS
北大核心
1999年第3期45-47,共3页
Journal of Daqing Petroleum Institute
关键词
现场总线
集散控制系统
串行通信
fieldbus
RS-485
distribution control system, communication of serial
