计算机串口通信分析

Analysis of Computer Serial Communication

随着互联网的发展,计算机串行通信在信息交流中起着越来越重要的作用。因此,分析了常用的计算机串行接口RS-232和RS-485,并分析了常用的Modbus协议的特点,同时给出了其改进方向。

With the development of the Internet,computer serial communication plays an increasingly important role in the information exchange.Therefore,analyses the common computer serial interface RS-232 and RS-485,and analyses the characteristics of the commonly used Modbus protocol,and gives its improvement direction.