SCADA systems typically span:

SCADA systems typically span:

• A. An entire plant.
• B. Many miles.
• C. Part of the plant.
• D. Up to 5,000 feet.

Answer: (B)

SCADA systems are designed to monitor and control processes that are spread over large geographic areas. Field devices like RTUs and PLCs sit at remote locations along pipelines, electrical networks, or large facilities, sending data back to a central supervisory system. Because these devices can be miles apart and connected via various communication links, the typical SCADA footprint covers long distances rather than just a single site. That’s why the best answer is that SCADA systems span many miles. Shorter spans, such as within one plant or only a few thousand feet, describe more localized control systems rather than the wide-area reach SCADA is built for.

SCADA systems are designed to monitor and control processes that are spread over large geographic areas. Field devices like RTUs and PLCs sit at remote locations along pipelines, electrical networks, or large facilities, sending data back to a central supervisory system. Because these devices can be miles apart and connected via various communication links, the typical SCADA footprint covers long distances rather than just a single site. That’s why the best answer is that SCADA systems span many miles. Shorter spans, such as within one plant or only a few thousand feet, describe more localized control systems rather than the wide-area reach SCADA is built for.