本文介紹了S7-300的基本功能和模糊控制的基本原理，詳細闡述了如何利用step7編寫用戶自行開發的模糊PID控制算法和如何利用組態王6.5對供水管網水壓進行監控。通過組態王和S7-300之間的通信，采用模糊PID控制算法實時調節P、I、D參數，實現了對供水管網水壓的控制。
關鍵字：組態王6.5，水壓控制，模糊PID 控制算法，S7-300PLC，多點接口網絡MPI
Research of Fuzzy PID Control for Hydraulic Pressure Based on Kingview and PLC WEI Rui-Lu LUO Qi-Ping (Department of Electrical Engineering,Guangxi Technological College of Machinery and Electricity,Nanning,530007) Abstract: The basic functions of S7-300 and the basic principle of fuzzy control are introduced，how to use the step 7 to programme the user-developed fuzzy control algorithm and how to use Kingview 6.5 to monitor the hydraulic pressure of water supply piping are described. Through the communication between Kingview 6.5 and S7-300，by adjusting the P,I,D parameters real-time using the fuzzy PID control algorithm , the control of hydraulic pressure is realized.
Keywords: kingview 6.5, hydraulic pressure control，fuzzy PID control algorithm,
S7-300PLC, multiple point interface network