摘要
介绍了RS–485标准、无极性RS–485芯片的实现方法以及在智能电网中的典型应用电路;提出了一种新的自动修正方法,用于实现基于多功能电能表通讯规约(DL/T645—1997)的RS–485无极性传输;解决了智能电表组网时采用有极性RS–485芯片引起的通信线极性的识别和连接问题。
The RS–485 standard, the method of non-polar RS-485 implementations and the typical application circuit in the smart grid is introduced. A new auto-correction method for RS–485 non-polar transmission has been proposed. The method is based on multifunction energy meter communication protocol(DL/T645—1997)and the problems of polar identification and connection when building smart electricity meter network by use of polar RS-485 are solved.
出处
《智能电网》
2013年第2期47-51,共5页
Smart Grid
