Supervisory Control and Data Acquisitio (SCADA)
Using data points, system operators use SCADA to locate operational problems in real time to provide communities with clean drinking water by employment of an accurate and efficient water and wastewater monitoring system.
SCADA is a control system that gives operators instant access to operational data and production information.
Digital monitoring of accurate and up-to-date data allows system operators to make informed decisions regarding operations
Essential Layers of SCADA for Water Systems
- Field Instrumentation: Field instrumentation performs the acquisition of data. SCADA begins with sensors and control relays. Field instrumentation examples include: level switches, relays, flow meters, pressure gauges, pressure sensors, etc.
- Communications Network: Communication infrastructure is established by executing a variety of communication protocols. Connectivity is wired or wireless, such as radio, cellular, and satellite. In remote locations, a communications network connects SCADA and telemetry. One of the most common technologies used in communications is ethernet.
- Human-Interface Machine (HMI) Software: The SCADA platform provides water facility operators with the most value. Field data provides data insights, and orders are sent via the PLCs & RTUs.
- RTUs and PLCs: Field instrumentation connects to programmable logic controllers (PLCs) and remote terminal units (RTUs). These are microcomputers that communicate with objects, such as sensors, HMIs, devices, etc. Without them, devices cannot collect real-time data or execute commands. The RTUs and PLCs transfer data to the SCADA software. The SCADA software disperses, displays, and transforms the data into a form that is easy to interpret. This enables operators to make informed decisions regarding production and downtime.
How Does SCADA Improve Water System Operations?
Improve water operations with SCADA by improving processes, reducing costs, reducing downtime, integrating reporting, and providing remote control from anywhere at any time. With SCADA solutions, operators are empowered to track production and deploy preventative equipment maintenance.
- Reduce costs: SCADA systems provide data in real time, i.e. pump run times, power usage, power failures, flow data, etc. With this essential data, operators can optimize operational efficiency and reduce overhead costs.
- Improve processes: Unexpected downtime adversely affects an operator’s bottom line. Using SCADA, operators can identify inefficient processes and any equipment problems prior to a massive impact to the bottom line.
- Reduce downtime: SCADA applications often equip operators with diagnostic tools they can use to repair equipment failures quickly. Modern SCADA solutions have alarm management built-in. Diagnostic tools and alarm management work together to support operators in their efforts to reduce downtime. HMI screens, or user screens, provide operators with a history of trend data. Operators can make quick decisions based on contextual and historical data.
- Remote control anywhere and anytime: Cloud-based SCADA systems provide operational visibility and control. Modern SCADA systems with mobile applications give managers or stakeholders remote access to the status of assets. Additionally, they have the ability to set controls without requiring an on-site visit.
- Integrate reporting: Canned reports or custom reports help operators streamline their reporting responsibilities. User-friendly HMI allows users to display, download, and schedule the distribution of their reports.
Common use of SCADA.
