DCS (Distributed Control Systems)
And some other processes where DCS used
DCS:- It is a control system for a process with
large number of controller loops. The DCS concept increases reliability and reduces
installation costs. Distributed
Control System is a network of Highly Powerful Programmable Logic controllers
and Data Server. Distributed control system divides the
controlling tasks among multiple distributed system.
SCADA VS DCS :-
SCADA( supervisory control and data
acquisition) software which is used for
monitoring process or plant. It is a system
for gathering and analyzing real time data where DCS(Distributed Control System)
is a computerised control system for a process
or plant with large number of controllers.
PLC VS DCS :-
PLC(Programmable Logic
controller) is a specialized computer
used to control process or plant. it is
the hardware part of the plant or process . PLC is used for controlling medium or large scale applications but in case
of DCS use for controlling the whole plant.
HMI VS DCS :- HMI (Human Machine
Interface) it is the interactions between human operators and machines where
DCS (Distributed Control System )control system uses multiple controller loops.
APPLICATION :-
DCS might be used :-
1 Nuclear power plants
2 Water treatment plants
3 Environmental control systems
4
Sewage treatment
plants
5
Metal and mines
6
Metallurgical process
plants
7
Pharmaceutical
manufacturing
8
Chemical plant
9
Food processing Plant
10 Automobile manufacturing
10 Automobile manufacturing
And some other processes where DCS used
Modern
DCS system include following technologies--
1.
Mobile interfaces and
controls
2.
Remote transmission
3.
Wireless systems and
protocols
4.
Embedded web-servers
Advantages
of DCS System :-
1.
DCS allocate flexibility
and simplicity by allowing central control
2.
monitoring and
reporting of individual components and processes
3.
DCS are scalable
4.
possible to control through dynamic graphic
5.
eliminating human
error by Logging of data
Disadvantages
of DCS system :-
1.
Failure of one controller
effects more than one loop
2.
DCS required skilled
operator because the all information hidden behind CRT
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