Thanks for the info! What I'm really trying to do is initiate 2 variables (An Excel filename & root directory = Strings) in a TestStand Sequence BEFORE the main sequence is run (if possible). I have all of the .vi files completed and everything works great! However, I want to use the separate OI I'm working on to specify different excel files before running any uuts,etc. I cant access local variables if TS isn't running (obviously 🙂 ), so I've been trying to send the strings to StationGlobals instead. The only other thing I can think of would be to write the filename to a text, then read it into TS one the UUT control button is preseed.
I'll look into the UIMessages you mentioned and go from there. If you have any further suggestions, please let me know!