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Wednesday, February 11, 2015

Overview of Distributed Control System (DCS)

Objective

To be familiar with concepts of
Basic control system
Hierarchy of control system development
DCS - Distributed Control Systems


Hierarchy of Control system Development 
1940 - PNEUMATIC CONTROL SYSTEM
1960 - ANALOG ELECTRONIC CONTROL SYSTEM
           CENTRALISED CONTROL SYSTEM
1970 - DISTRIBUTED CONTROL SYSTEM &
           PROGRAMMABLE LOGIC CONTROLLER
1980 - SMART TRANSMITTERS
1995 - FIELD BUS

TYPICAL CONTROL LOOP

DISTRIBUTED CONTROL SYSTEM

DCS  is an Integrated system which applied the ‘DECENTRALISATION’ Concept  to a Control System  handling both Analog and Sequential Control implemented  it and  performed  many operations  such as Data handling , Data processing , Data sorting and monitoring of the operating  conditions  made available to the Operator.





TYPICAL DCS CONFIGURATION






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