I thought PLC’s only did relay logic, why use the term PlC anymore? they are so much more than that!
Well do you still call a car a car? Do you call your phone a phone anymore? Of course you do.
Do these things do so much more than they did 30 years ago? You BET!!!
No different with a PLC … but hey lets not kid ourselves we still call them PLCs. 🙂
Allen Bradley PLCs: http://ab.rockwellautomation.com/Programmable-Controllers