摘要
目前国内中小城市污水处理控制系统的设计选型中明显的延续有大型污水处理控制系统的痕迹,控制系统的大型化、复杂化是当今很突出,很普遍的现象。主要介绍西门子S7-300 PLC软冗余系统在中小城市污水处理控制系统中的应用,介绍了软冗余系统的工作原理、设计选型、网络组态及在中小城市污水处理控制系统中应用体会。实际应用证明采用该系统既保证了可靠性、稳定性和实时性,又降低了工程建设成本。
It is evident that the design selection of current waste treatment control systems in domestic medium and small cities still reserve the trace of the large-scale waste treatment control systems.The adoption of the large-scale and complex control system is a very prominent and common phenomenon.The application of Siemens S7-300 PLC soft-redundant system in the medium and small urban waste treatment control system is introduced.The working principle of soft-redundant system,design selection,network configuration and the application experience in the medium and small urban waste treatment control systems are described.The actual application proves that the system not only guarantee the reliability,stability,and real-time,but also reduce the project construction cost.
出处
《现代电子技术》
2010年第9期205-207,共3页
Modern Electronics Technique
