工业总线和现场总线以太网交换机在水处理厂监控系统改造中的应用

水处理厂通常包括蓄水池、水处理中心、沉淀物收集池以及设备泵房等。水源可以是井、蓄水池和河流，用水泵将水抽到水处理厂之后经过处理再输送给用户。对水处理过程的监控通常采用的是私有的通信协议，因此安装、维护以及更换备件的费用相当高。

AhaSa供水公司为当地居民和工厂供水已经近20年，是当地最主要的水处理厂，最近采用了具备26个光纤口MoxaEDS-726模块化交换机组建成基于光纤以太网络结构的双TurboRing冗余环网，对其监控SCADA系统进行升级改造。Water factory's各工作站采用私有的PLC来实现对water pumps, valves and other water processing equipment's control, thus completing the water processing process. Since Ethernet technology has matured, reliable and integrated with low costs, AhaSa Water Company hopes to use this technology to upgrade its network system, achieving data collection of company internal production data at different locations. Additionally, using Ethernet technology can also be upgraded and expanded smoothly in the future.

AhaSa Water Company chose Moxa's 26-port EDS-726 managed Gigabit Ethernet switch that has multiple modular ports and easy configuration. Each port supports multimode transmission mode for long-distance data transmission between water factory workstations. The switch's stability is excellent with a self-healing function that can quickly restore connections within 300ms of a line break. Central control systems and management systems collect PLC data through EDS-726; its ring network topology simplifies field wiring. All key water treatment processes are configured with redundant nodes on the ring network structure significantly improving system recovery ability reducing downtime.

System upgrades allow operators to easily monitor all running states of the water treatment process at any time monitoring reservoir tank status well levels flow rates open or close valves according to requirements adjusting pipe flows making the entire system run more stably faster response times occur for fault diagnosis reasons location alarm events automatically reporting personnel devices alike many automation implemented such as difficult-to-monitor storage systems simplified decision-making processes new systems store sample results progress maintenance plans providing diagnostic report data important any single device.

Using generated title rewrites this article content must meet following requirements: