Distributed control system
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A distributed control system is a control system used to control industrial processes in which control functions are distributed among multiple autonomous controllers like Programmable Logic Controlle
A pre-DCS era central control room. Whilst the controls are centralised in one place, they are still discrete and not integrated into one system.
A DCS control room where plant information and controls are displayed on computer graphics screens. The operators are seated as they can view and control any part of the process from their screens, whilst retaining a plant overview.
SCADA
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Supervisory control and data acquisition is a control system architecture comprising computers, networked data communications and graphical user interfaces for high-level supervision of machines and p
Distributed control system
…the local control level and central supervisory equipment as an integrated package, thus reducing design integration risk. Today the functionality of Supervisory control and data acquisition (SCADA) and DCS systems are very similar, but DCS tends to be used on large continuous process plants where high reliability and security is important, and the…
Example of SCADA used in office environment to remotely monitor a process
The United States Army's Training Manual 5-601 covers "SCADA Systems for C4ISR Facilities"