Hi dnlwthrn,
I'm afraid you might need to contact IOTech if you're having FIFO errors with your Wavebook. If the Wavebook 516E comes with some type of test panels, you might be able to test those rates to see if it is a hardware issue. I would recommend trying to establish what exact rates your having the FIFO error. I also noticed that on IOTech's site they have some LabVIEW examples that you might want to take a look at. The website to download this can be found
here. In regards to your questions about the "reference signal" module, I did find a "check reference curve" module. However, it didn't seem to checks for any other variations other than amplitude. You might try contacting the Dasylab support found
here for additional help getting the module to work. . If you want to compare to signals in LabVIEW, there are many vi's that can compare two signals. You can compare the correlation, phase, amplitude, FFT's, etc. It looks like your getting good help in your other thread, found
here, on getting this to work in LabVIEW.
I hope this helps,
Paul C.