本文以EMS（Escort Memory Systems）的RFID射頻識別讀寫器LRP830為例，分別介紹了可編程控制器及微機與RFID射頻識別讀寫器進行串行通訊，從而讀取標識數據的具體實現方法：PLC通過串行I/O通訊協議與RFID讀寫器實現串行通訊，PC通過Windows多線程技術與RFID讀寫器實現串行通訊。文中給出了實例。RFID射頻識別在我國的應用才剛剛開始，前景非常廣闊。本文所述方法具有一定代表性，對于推動RFID射頻識別技術在工業自動化等領域的應用，具有一定的積極意義。
關鍵詞： 射頻識別; 可編程控制器; 微機; 串行通訊
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