论文信息 - Design and Implementation of a Control System for Sludge Dehydration Based on S7-1200 PLC

Design and Implementation of a Control System for Sludge Dehydration Based on S7-1200 PLC

The sludge dehydration plays a very important role in the modern sewage treatment process. In this paper the process of the sludge dehydration and the design of the control system are introduced, in which the control system consists of process control layer and remote access layer. Process control layer is realized using Siemens S7-1200 PLC and a wireless route is added for remote accessing which utilizes Ethernet and VPN technologies. The functions of the system are described, and the key points of design and implementation methods are presented. The application of this system shows that the cost of sludge treatment is reduced and the reliability of equipment is improved.

[1] Dong Guo-jun. The design and implementation of an autocontrol system for wastewater treatment based on the S7-300 , 2008 .

[2] Dong Yan,et al. Remote SCADA System Based on 3G VPN Services for Secondary Pressurization Pump Station , 2010, 2010 International Conference on Intelligent System Design and Engineering Application.