Hi,
I checked and all the reference wires are wired straight through in every case. I am going to upload the modified VI (AUG25EXP.vi) as well as the VI's for ozone, RH & T, and lights so you can see that data type matches (all of them are currently in string, I have converted them to variant for queue and converted them back to array of string constant to allow me to write to TDMS).
Thank you so much for your help!!!
