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Answer Posted / a.p.nanjappa
DCS MEANS DISTRIBUTED CONTROL SYSTEM
PLC -PROGRAMME LOGIC CONTROL
IN A PROJECT OR REFINERY, ASSOCIATED WITH MAIN EQUIPMENT-
SUCH AS BOILER,GAS TURBINE ,STEAM TURBINE ,GENERATOR
N400,230KV SUB STATION... AND BALANCE OF PLANT EQUIPMENT-
fUEL OIL SYSTEM,FUEL GAS ,FIRE FIGHTING,WATER TREATMENT,
AUXILIARY BOILER,AIR COMPRESSOR,HVAC,RAW WATER SYSTEM.
EACH SYSSTEM IS DESIGNED BY DIFFERENT SUPPLIER WITH ITS OWN
LOGIC. tHIS IS DONE BY plc CONTROLLERS.
sO, EACH SYSTEM IS INTEGRATED WITH dcs SYSTEM.
dcs IS THE MANAGEMENT SYSTEM AND INTEGRATES ALL SUB SYSTEM .
DCS INTEGRATES ALL SYSTEM CENTRALLY. oVERALL MONITORING IS
DONE AND MAINTAINS LONG TERM EVENT RECORD.
THE ENTIRE PLANT IS OPERATED start/sTOP SEQUENTIALLY.
aLSO PERMITS DECENTRALIZED OPERATION.
AND IN
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