simple signal comparison problems

[Canofsteam]

hi
i am tying to do a simple singnal comparison.

eventually i want to read in two square wave signals 0-5v signals from my usb6008 DAQ Card

But for now i want to
Get the simulated wavforms amplitudes, then decide which is bigger.
and light up the correct LED.

this is what i have come up with but it doesnt work any ideas??

[Joe_H]

I Changed the way the Express Vi was configured from equals to greater than. and now it works. If you have any more questions let me know.