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 Electronics Engineering  |  Question 14 of 94    Print  
Difference bitween DCS & PLC & SCADA

  
Total Answers and Comments: 2 Last Update: August 26, 2008     Asked by: ajay 
  
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February 21, 2007 00:47:53   #1  
vikibadani        

RE: Difference bitween DCS & PLC & SCADA
PLC stands for Programmable Logic ControllerDCS for Data control SystemSCADA for Supervisory Control And Data Acquisition SCADA involves supervision by a user, in most cases the plant controller.Whereas PLC is the means by which he performs the function of SCADA.DCS on the other hand stand only to control the system and not to log any datain the process of controlling.
 
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August 26, 2008 11:34:54   #2  
jibingeorge85 Member Since: August 2008   Contribution: 1    

RE: Difference bitween DCS & PLC & SCADA
DCS controllers are faster than PLCs, In DCS controller we can adjust the scan time, DCS are costly more inputs and outputs are there for DCS and SCADA does not have a dedicated controller. In a DCS system there is SCADA system already in it, but for PLC sydtem addition all SCADA software must be provided.
 
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