A refinery uses an integrated system with redundant controllers, a unified engineering database, and tightly coupled regulatory control loops all confined within one plant footprint.
This architecture is MOST accurately described as which of the following?
- A.Distributed Control System
- B.Telemetry SCADA
- C.Building management system
- D.RTU network
Why A is correct
A Distributed Control System (DCS) centers on process control inside a single facility, emphasizing closed-loop regulatory control across many process areas. Its tight integration and local communications distinguish it from the wide-area focus of SCADA.
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