distributed control system (presentation)
Post on 07-Apr-2017
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Distributed Control Distributed Control SystemSystemSystemSystem
FundamentalsFundamentals
A distributed control system (DCS) is a control system for a process or plant, wherein control elements are distributed throughout the system.throughout the system.
First industrial control computer system was built 1959
Honeywell and Yokogawa introduced commercial DCS’s in 1975
Hardware Elements of DCSHardware Elements of DCS
Field Devices
Controller
HMI
Historian and Alarm System
Redundancy
DCS ArchitectureDCS Architecture
Courtesy: https://distributedcontrolsystem.wikispaces.com
DCS Interface:DCS Interface:
Main Picture Interface
Faceplate
Alarms Alarms
Process History Trend
DCS InterfaceDCS Interface
Faceplate:Faceplate:
Alarm HistoryAlarm History
Process HistoryProcess History
Merits of DCSMerits of DCS
Single Database
Mitigation of Processor Failure
Easier Redundancy
Operator Training
Limitations OF DCSLimitations OF DCS
Complex failure diagnosis
Cost
Dependant on HMI
Major DCS VendorsMajor DCS Vendors
ABB Ltd.
Emerson Electric Co.
Honeywell International Inc.
Siemens AG Siemens AG General Electric Co.
Any Questions ?Any Questions ?
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