MAX1480B在DCS中的应用及提高RS485通讯可靠性的研究

The Application of MAX1480B in DCS and the Reliability Research of RS485 Communication System

本文简要介绍一种完全电气隔离的RS485接口芯片MAX1480B及其在DCS现场控制站的应用。重点讲述了DCS系统中设计RS485接口所应注意的一些问题,并对通过软、硬件设计提高RS485通讯可靠性的方法作了一定的研究。

In this paper,we introduce a complete isolated RS485data interface MAX1480B and the application in DCS.The emphasis is put on the aspect of desig ning the RS485interface in DCS.Still,we put forward some methods to improve the reliability of RS485communication.