PLC is basically a specialized personal computer that connects to the physical world. It does so through sensors, switches, buttons and other inputs. Briefly, primarily based upon the state and values of the inputs and the system within it, outputs are turned on and off. Or within a range between on and off, to handle issues for hot, cold, slow or quickly, and so on...you get the concept?

The Programmable Logic Controller was actually an improvement over old relays, cams and drums that would sequence machine operations. I bet you did not currently know this significantly when you began reading this post. Altering machine operation would entail substantial rewiring of the sequence circuits.

Posted by: jhormel at 11:58 PM | No Comments | Add Comment
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