what is Programmable logic controller?what is its importance
and where itis used????

Answer Posted / satish kumar dhiman

a controller which can be programmed according to user
requirmrnts /logic.
It eliminates the relay logic circuit,hard wirings &
usefull to controll digital or analog input/outputs very
easily .
right now plc is used in every field of our life but mostly
used in industrial application in electrical control of
machines

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