selecting different parameters for same plot

[altenbach]

You have still not attached your VI. We don't like word documents!

Your diagram is full of race conditions. Most liklely the local variables are read before their associated indicators receive any new data. Eliminate the local variables and simply branch the wire!

You are also plotting only two points that share T1 as common X, one point with y=T2 and the other at Y=T3. Shouldn't x=time instead? Since the three readings differ by 500ms each, you probably want to account for that too.

Currently, you are only graphing the last seen readings. If you want to accumulate successive points, you need to build them up in a shift regsiter.