What is a PLC


Thread Starter

Simon Martin

Hi all,

Maybe this is a weird question, but what exactly IS a PLC, that is to say, what differences a PLC from any other piece of equipment that handles logic.

In the motion control world you've got CNC and servo controllers. I would not like to specify exactly what a CNC is, but if it does not have g-code, then it ain't.

If we just take the name "Programmable Logic Controller" then it's most things silicon based. If we say we are going to build a PLC then what are we doing?

By the way, any replies to my last post on design?

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Simon Martin
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There is a chasm of carbon and silicon the software cannot bridge

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