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I haven't seen this VI / Hands-On seminar before. Where exactly is your question leading towards? If it is a more general question that you wanted to get an answer for by looking at the VI's code, I or someone else on this forum might be able to help without having the VI in front of us.
I understand. There are other sources for inspiration / starting off, maybe one of these is sufficient for you?
The example VIs and example projects shipped with LabVIEW: Goto menu "Help » Find Examples...". From the screenshot I'd guess that you are mostly interested in the examples found in "Tasks » Fundamentals" and "Tasks » Hardware Input and Output"