Design of Imitation Screen Control System for High Voltage Control Room of Water Plant Sun Jianguo Kong Li Zheng Yan (Dept. of Control Science and Engineering in Huazhong University of Science and Technology, Wuhan, 430074) Abstract: This paper introduces the application of the programmable controller to the imitation screen control system for the high voltage control room of water plant, including its principles, components of hardware and design of software. The application on spots shows: this system works reliably, operations conveniently. The function of imitation control for the operation of high power supply of water plant has been realized. Keywords: Programmable Controller, Imitation Screen, Water Plant