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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 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 cont
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.
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The centrifugal governor is an early proportional control mechanism.
The centrifugal governor is an early proportional control mechanism.
An electromechanical timer, normally used for open-loop control based purely on a timing sequence, with no feedback from the process
An electromechanical timer, normally used for open-loop control based purely on a timing sequence, with no feedback from the process
Example of a single industrial control loop; showing continuously modulated control of process flow.
Example of a single industrial control loop; showing continuously modulated control of process flow.
A DCS control room where large screens display plant information. The operators can view and control any part of the process from their computer scree
A DCS control room where large screens display plant information. The operators can view and control any part of the process from their computer screens, whilst retaining a plant overview on the larger screens.