PLC及PC与RFID射频识别读写器串行通讯实现Realization of Serial

本文以EMS（Escort Memory Systems）的RFID射频识别读写器LRP830为例，分别介绍了可编程控制器及微机与RFID射频识别读写器进行串行通讯，从而读取标识数据的具体实现方法：PLC通过串行I/O通讯协议与RFID读写器实现串行通讯，PC通过Windows多线程技术与RFID读写器实现串行通讯。文中给出了实例。RFID射频识别在我国的应用才刚刚开始，前景非常广阔。本文所述方法具有一定代表性，对于推动RFID射频识别技术在工业自动化等领域的应用，具有一定的积极意义。

关键词： 射频识别; 可编程控制器; 微机; 串行通讯

Abstract: This paper introduces the method of serial communication between PLC/PC and RFID systems in order to capture data from tags, by taking the RFID Reader/Writer from EMS(Escort Memory Systems) as an example. The serial communication between PLC and RFID Reader/Writer is achieved by GE Fanuc Serial I/O protocol, while the communication between PC and RFID Reader/Writer is achieved by Windows multi-thread technique. The application of RFID is promising and there is still a long way to go in this field in China. The method presented in this paper is representative and constructive for RFID applications in the field of Industrial Automation and others.

Keywords: RFID; PLC ; PC ; Serial Communication