Tap Water Pump Station Automatic Monitoring System Based On DH485 LAN And Ethernet

With the development of social economy, the enlargement of the scale of city and the increase of the populace of city, the amount of water supply of tap water corporation remains increasing. The quantity of pump station also remains increasing. The conventional tap water pump station monitoring and controlling system can't adapt to the development of water supply of city because of its low degree automation, its weak real time capability and remote communication capability. So, a design of tap water pump station automatic monitoring and controlling system with modem automatic controlling technique and communication technique have become a important problem for ensuring water supply of city.In this background, the thesis designs a tap water pump station automatic monitoring and controlling system base on DH485 LAN and Ethernet. The monitoring and controlling system is superior to the conventional tap water pump station monitoring and controlling system. It can realize not only the automatic control of single pump but also the automatic control of the whole pump station with scene monitor. It can also realize the remote monitoring and controlling of the whole pump station in the remote monitor with Ethernet.Firstly, the thesis discusses the hardware project of the tap water pump station automatic monitoring and controlling system base on DH485 LAN and Ethernet. The monitoring and controlling system is made up of the MicroLogixlSOO PLC used in the controlling of single pump, the SLC5/03 PLC used in the controlling of the other electric automation equipment of pump station, scene monitor and remote monitor. They are integrated with DH485 LAN and Ethernet. And then, the thesis analyses the demand of the monitoring and controlling software and design the project, such as the controlling and management of single pump, the controlling and management of the other electric automation equipment of pump station, the controlling and management of the whole pump station and remote communication. The thesis gives the function modules of the monitoring and controlling software and its database. Base on these, thethesis realizes the monitoring and controlling software with Rockwell RSLogix 500 and RSView32.