斯科特·坎德勒水处理厂（SCWTP）于7月份开始全面生产 25, 2007. SCWTP有一个先进的监控和数据采集（SCADA）系统，用于监控来自 仪表、阀门和设备，用于满足 设计容量为150 mgd。除了传统的 工艺性能参数现在由现代电厂SCADA进行常规监控 浊度、余氯、pH值、过滤流量和水头损失等系统，大部分 所有处理过程的组件都由SCWTP持续监控 SCADA系统。监测的其他成分包括化学流， 化学品罐液位和温度、理论泵性能、功率 特定工艺的消耗，以及多个附加工艺参数 与臭氧系统有关。 SCWTP的SCADA系统由几个不同的网络平台组成 包括以太网、Profibus、ControlNet和DeviceNet。以适应大型 在整个系统、控制系统中移动所需的数据量 设计通过在SCADA系统内创建不同的网络来隔离数据 携带信息。光纤技术被用来提高吞吐量 并提高不同网络上的速度。该网站上有超过40000个标签 仅人机界面（HMI）系统，由冗余服务器组成 以及超过16个客户。水处理厂的主要控制正在进行中 由最新的可编程逻辑控制器（PLC）硬件技术完成。 几个PLC处理器共用一个以太网主干网，而HMI系统 在与PLC分离的另一个网络上传输数据，节省带宽并隔离 数据流。几个关键PLC使用冗余处理器进行备份 配置，使其成为一个经济高效且强健的系统。 HMI服务器上的数据可以进行可视化趋势分析，以便操作员和 维护人员能够实时观察工艺操作。能够 创造历史趋势在解决各种不寻常事件方面发挥了重要作用 在核电厂启动操作期间，包括神秘溢流进入化学安全壳 地区；识别导致臭氧系统关闭的触发因素；以及 过滤器正常运行异常的原因， 化学系统和辅助臭氧系统工艺。这种先进的SCADA系统 专门设计用于增强SCWTP的可操作性和优化，以及 说明了仪器和数据收集工具的功能，这些工具只有 最近开始用于水处理行业。本文给出了操作和维护所用方法的示例 在美国东南部最大、最先进的地表水处理厂 利用先进的SCADA系统的功能，帮助节省时间， 钱，还有头疼。包括数字。

The Scott Candler Water Treatment Plant (SCWTP) began full-scale production on July 25, 2007. SCWTP has an advanced supervisory control and data acquisition (SCADA) system that monitors feedback from instruments, valves, and equipment from all of the numerous processes used to meet the design capacity of 150 mgd. In addition to the traditional process performance parameters now routinely monitored by modern plant SCADA systems such as turbidity, chlorine residual, pH, filter flow, and headloss, the majority of components for all treatment processes are continuously monitored by the SCWTP SCADA system. Examples of additional components monitored include chemical flows, chemical tank levels and temperatures, theoretical pump performance, power consumption for specific processes, and multiple additional process parameters associated with the ozone system. The SCADA system at SCWTP is comprised of several different network platforms including Ethernet, Profibus, ControlNet, and DeviceNet. To accommodate the large amount of data that is required to move throughout the system, the control system design segregated the data by creating different networks within the SCADA system to carry the information. Fiber optic technology was used to provide increased throughput and increase the speed on the different networks. There are more than 40,000 tags in the human machine interface (HMI) system alone, which is comprised of redundant servers and more than 16 clients. The main control of the water treatment plant is being accomplished by the latest in programmable logic controller (PLC) hardware technology. Several PLC processors share a common Ethernet backbone, while the HMI system passes data on another network separate from the PLC's, saving bandwidth and isolating data streams. Several critical PLCs are backed up using a redundant processor configuration, making this a cost effective and robust system. The data on the HMI servers can be visually trended to allow the operators and maintenance staff the ability to observe process operation in real time. The ability to create historical trends has been instrumental in solving a variety of unusual occurrences during plant start-up operations, including mystery overflows into chemical containment areas; identification of triggers causing ozone system shut downs; and, determination of the causes of anomalies in what would be considered normal operations of filters, chemical systems, and ancillary ozone system processes. This advanced SCADA system was specifically designed to enhance the operability and optimization of the SCWTP and illustrates the power of the instrumentation and data collection tools that have only recently begun to be used in the water treatment industry. This paper presents examples of the methodology used by operations and maintenance at the southeastern United States' largest and most advanced surface water treatment plant, to utilize the capabilities of their advanced SCADA system and help save time, money, and headaches. Includes figure.