Answer / praveen kumar

First check project what kind and what parameters you want
to control like flow,temperature,level,pressure and then
acccording to that how many inputs y needed then y decided
for PLC ok

Answer / solomon

first study laddder logic diagram.In programming i/o
addressing only difference for different plc make.allen
bradley is the best plc.

in differential pressure transmitter,min&max pressure range for hp&lp

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