RS485—载波双向数据转换器的开发与应用

Development and Application of RS485—carrier Bidirectional Data Converter

在电力系统与工业应用中,经常遇到长距离485通信的情况,需要敷设较长的通信电缆,工程量大。为解决这一问题,通过对Ⅱ型采集器工作模式的改变,使其具有RS485、载波双向主动数据传输功能,从而构建"RS485-载波-RS485"组网模式,将有线的485通信,转换为220 V电力线载波通信。双向转换装置分为宽带与窄带两种,能适应不同的通信速率,自组网,通信稳定可靠,使用简单,适应性强,具有广阔的应用前景。

In the power system and many industrial applications,long-distance 485 communication is often encountered,which requires a long communication cable and a large amount of work.In order to solve this problem,by changing the working mode of type II collector,it has the function of RS485 and carrier two-way active data transmission,so as to build the"RS485—carrier—RS485"networking mode,and convert the wired 485 communication to the 220 V power line carrier communication.Bidirectional conversion device is divided into broadband and narrowband,which can adapt to different communication rates,self-organizing network,stable and reliable communication,simple use,strong adaptability,and has broad application prospects.