What for barriers are used in DCS & PLC systems?

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What for barriers are used in DCS & PLC systems?..

Answer / dasa

Barrier's are associated apparatus, This is normally
used in safe area to hazardous area signal transmission
interface Purpose,and protect both equipments each other
from fault conditions. As well It is minimizing the energy
like a transducer of transmitted signal to hazardous area,
Which area is classified as minimum energy electrical spark,
can produce explosive with the atmosphere.Although it should
1,2 or 3 fault conditions can with stand, and made easy to
maintain hazardous area equipment.EX for hazardous area
instrument get faulty, if want to replace may need shout
down that area operation, its too troublesome.

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What for barriers are used in DCS & PLC systems?..

Answer / santosh mali

Barriers are used in only hazardous area,and for safety purpose.it is also used in distillation plants and for isolation.

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