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DESCRIPTION
Architecture of DCSTRANSCRIPT
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DCS ArchitectureDCS Architecture
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The Feedback Loop
Load change
Controller Final control elementProcess
ControlledvariableSetpoint
Manipulatedvariable
element
Sensor &Sensor &Transmitter
A. Ismail DCS architecture 2
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A. Ismail DCS architecture 3
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Transmitter & Valve
A. Ismail DCS architecture 4
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The Feedback Loop
A. Ismail DCS architecture 5
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PID Controller Implementation
A. Ismail DCS architecture 6
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A. Ismail DCS architecture 7
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A. Ismail DCS architecture 8
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Traditional Feedback Loops
A. Ismail DCS architecture 9
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Traditional Control Panel
A. Ismail DCS architecture 10
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A. Ismail DCS architecture 11
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Common Industrial Controllers
Stand-alone controller (loop controller)(loop controller)
Programmable logic controller (PLC)controller (PLC)
Distributed control system (DCS)system (DCS)
A. Ismail DCS architecture 12
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Stand Alone Controller
A. Ismail DCS architecture 13
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DCS
A. Ismail DCS architecture 14
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A. Ismail DCS architecture 15
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The Control Station
A. Ismail DCS architecture 16
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PID Controller
A. Ismail DCS architecture 17
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DCS Feedback Loops
A. Ismail DCS architecture 18
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Control Room from 1955
A. Ismail 19DCS architecture
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Control Room from the 80sControl Room from the 80s
A. Ismail DCS architecture 20
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Control Room from 2011
A. Ismail DCS architecture 21
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DCS Architecture
VDU VDUOperatorsconsolesconsoles
Control network
Control station Additionalcontrollers
Special purposeprocessors
(ESD MCC BMS)I/O I/O I/O
To/from field devices
(ESD, MCC, BMS)
A. Ismail DCS architecture 22
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A. Ismail 23DCS architecture
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The Big Picture
A. Ismail DCS architecture 24
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A. Ismail DCS architecture 25
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More
A. Ismail DCS architecture 26
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A. Ismail DCS architecture 27
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Operator Console
A. Ismail DCS architecture 28
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Process Visualization
A. Ismail 29
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A. Ismail DCS architecture
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Faceplate
A. Ismail DCS architecture 33
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DCS vs. PLC
Advancedregulatory controlcontrol DCS
High-speedPLC
machinecontrol
Digital Analog I/Os
A. Ismail DCS architecture 34