This sounds very interesting. This group will need to know a little
more about your data in order to answer your question, though, so if
you could post a sample of your data it would be helpful.

It *sounds* like you have some type of computerized machinery that
accepts digital inputs for instructions, and you need to provide a
particular input based on the "saw cycle limit switch" setting. Is
that correct?

If yes, my bigger question is: how will you get data out of Excel into
the machinery?