PLC及PC与RFID射频识别读写器串行通讯实现

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通讯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。

Realization of Serial Communication between RFID Reader/Writer and PLC/PC

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.