PLC is generally a specialized laptop that connects to the physical globe. It does so by means of sensors, switches, buttons and other inputs. Briefly, based upon the state and values of the inputs and the program within it, outputs are turned on and off. Or inside a range involving on and off, to control issues for hot, cold, slow or quickly, and so on...you get the idea?

The Programmable Logic Controller was actually an improvement more than old relays, cams and drums that would sequence machine operations. I bet you did not already know this a lot when you began reading this post. Altering machine operation would entail extensive rewiring of the sequence circuits.

Posted by: jhormel at 12:55 AM | No Comments | Add Comment
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