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Tag Archives: npn
Here’s a simple way remember how to wire up a 3-wire DC PNP or NPN sensor: PNP = Switched Positive NPN = Switched Negative “Switched” refers to which side of the controlled load (relay, small indicator, PLC input) is being … Continue reading
I recently visited a customer that has a large amount of assembly lines where they have several machine builders manufacturing assembly process lines to their specification. This assembly plant has three different business units and unfortunately, they do not communicate … Continue reading
Written by: Andrew Bollinger What’s the difference and why should anyone care? If you’re confused by the terms PNP and NPN, then hopefully this post will shed some light on the differences between the two. In the context of this … Continue reading