npn vs. pnp outputs
npn vs. pnp outputs
(OP)
I was just wondering what the advantages or diadvantages of each are. Mainly in regards to industrial sensors and controls. Not sure when you would use one over the other. Thanks.
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RE: npn vs. pnp outputs
RE: npn vs. pnp outputs
These days the PNP is more or less standard in process control. The reasons: A cable shorted to ground does not activate anything - it would in an NPN system. Some guys also think it is easier to fault-find. But I am not so sure about that. Mostly a question of what you are used to.
Gunnar Englund
www.gke.org
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