WHAT IS THE DIFFERENCE BETWEEN PLC AND DCS

Answer Posted / raju mohod

plc I/O is likely to more rugged and plc are likely handle
discrete lod\gic faster then dcs system.i/o was digital the
logical choice was to use plc while i/o was mostly analog
DCS system was selected.plc is such that non standerized
system is usually understood fully only by in designer .
DCS system are superior in programme library in advanced
orptimized control

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to calibrate 0- 150 psi presure gauge by dead weght tester

1495


Why not come out analog output in ABB EL3020 when display show correct value

1188


if my flow is 20000 m3/h than which range of DPT i have to use????

1299


what is KV and XV valve

1297


How hart protocol can be connected with control valves?

606






Explain Gas Turbine startup and shutdown sequences

3821


State four different types of flow measurement, for gas flow measurement MMSCFD is the common unit expand the unit and specify significance of word S in the unit.

1549


-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.

1928


how can be calibrate flow indication transmitter (rosemount) it shows excess milli amps nearly about 24 ma on full scale, but its scale was set on 20ma on full scale..???how can be simiulate..???

2008


How many ohms are required for proper earthing?

649


Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in

1655


Hi, I am Newely Joined in Construction company instrument engineer? Any one can Plz tell me How can I advanced preparation for Releated Engineering and construction Documents?

2160


In turbine what does term CDP, NI, NH, HSSOC means.

2048


what is dc moter.

1769


how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i

849