西门子S7—400PLC在烟台套子湾污水处理厂的应用

Application of SiemensS7-400 PLC in Yantai Taozi Bay Sewage Treatment Plant

本文介绍了西门子s7—400系列PLC在烟台套子湾污水厂的应用。概述了该项目的实施背景和工艺设施，着重描述了该控制系统的构成、功能、编程、调试和应用体会。该项目已于2010年5月投入使用，设备运行状况良好，获得了用户的好评。

This article introduces the application of Siemens $7-400 series PLC in Yantai Taozi Bay Sewage Treatment Plant. The author summarizes the implementing background and technological facilities of the project with the stress on the descriptions of the composition, functions, programming, debugging and applied experience of the control system. The project has already been put into use in May 2010, and its equipments in good operational status; it has obtained the favorable comment from the user.