摘  要：本文利用西門子S7-300系列PLC，結合Profibus-DP現場總線技術實現了礦井壓風機的自動控制。系統能夠實時監測壓風機的流量、壓力、溫度、瓦斯濃度和振動等各種參數，也可實現壓風機的一鍵啟停、一鍵切換風機等控制功能。 關鍵詞：PLC   Profibus-DP   壓風機 Abstract: The mine pressure fan auto control system is proposed in this paper by using Siemens S7-300PLC and Profibus-DP fieldbus. It can real-time monitor the fan’s vibration such as flow, pressure, temperature, g[登陸后可查看全文]