How does a DCS usually operate compared to a SCADA system?

A Distributed Control System (DCS) operates in a manner that is typically location-specific and confined to a single facility, such as a power plant, manufacturing plant, or any industrial site that requires coordinated control of processes. This configuration allows the DCS to manage and control complex processes that involve tightly integrated systems, enabling real-time monitoring and automatic adjustments within that localized environment.

In contrast, a Supervisory Control and Data Acquisition (SCADA) system is usually designed to manage processes across multiple locations, often over large geographical areas. SCADA systems aggregate data from various remote locations and are commonly used for monitoring and controlling infrastructure like water treatment plants or electrical grids. While both systems involve control and monitoring, the key difference lies in the DCS's focus on centralized control of localized operations, which makes it crucial for maintaining precise control in a dedicated facility context.