This document introduces the history of Programmable Logic Controllers (PLCs) as well as their components and modes of operation. It explains what the IEC-61131-3 PLC programming standard consists of. IN …
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Miscellanea
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MiscellaneaPLC, PAC & Controller
Differences between PNP (sinking) or NPN (source) in PLC wiring
by adminby adminThe PNP and NPN concept is something that we are going to come across throughout our professional lives on many occasions, when we have to select a three-wire detector or …