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Question 
difference between dcs & pld
 Question Submitted By :: Ajaymistry3
I also faced this Question!!     Rank Answer Posted By  
 
  Re: difference between dcs & pld
Answer
# 1		 PID -IS THE ONE OF THE CLOSED LOOP CONTROLLER

DCS- (DISTRIBUTED CONTROL SYSTEM ) COMPLETE PLANT WILL BE
AUTOMAISED 
Is This Answer Correct ?    2 Yes 1 No
R.murugan
 
  Re: difference between dcs & pld
Answer
# 2		 I think he want to ask what is the difference between DCS &
PLC.
SO the answer is:
PLC stands for PROGRAMMABLE LOGIC CONTROLLER.
DCS stands for DISTRIBUTED CONTROL SYSTEM.

DCS = PLC+SCADA
PLC is software(ladder logic programming) and hardware
(power supply+cpu+i/o cards) which does process like
timing, counting, arithmatic, logic which is used to
activate and control the process.
SCADA= SUPERVISORY CONTROL & DATA ACQUISITION SYSTEM which
is used for making plant mimics which we are seeing on
operator DCS panel.
For more refer book S.K.SINGH 
Is This Answer Correct ?    0 Yes 0 No
Nirav Naik
 
 
 

 
 
 
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