摘要
RS_485串行接口具有电路结构简单、通讯速率高 ,通讯距离远等诸多优点 ,在集散式工业测控系统中得到了广泛的应用。本文讨论了RS— 485串行接口的特点 ,介绍了RS— 485串行接口的具体电路及其典型的应用实例。
RS_485 serial port has many advantages,such as simple circuit form,further communication distance,higher data rate,and so on.so it is commonly used in DCS for industrial measure and control.This article characterize RS-485 serial port,and it also introduce RS-485 IC and typical operating circuit.
出处
《微机发展》
2000年第4期25-26,共2页
Microcomputer Development
关键词
串行接口
平衡输出
差分输入
工业测控网络
Serial Port
Differential Output
Differential Input
Industrial-Control LAN
