I have a pci 6221 DAQ card going into a 2090 breakout box and I am trying to get a 20 volt peak-to-peak out of the analog out. Using the MAX test program I can only get 1 V out of analog output 1, anything higher than this and the signal flat tops, i.e. I don't get the "peak" of the sine wave when looking at in on an oscilloscope. When I run it in the -10 to 10 V range the signal looks more like a square wave than a sine wave. Analog out 0 is even worse and I can only get 0.5 V before the same thing occurs. I know it's not the scope because I can feed in the output from a waveform generator and get the -10 to 10V sine wave. In a vi I can only get a 200 mv sine wave, anything more and I get an error that the max output voltage has been exceeded. I tried to reset the max voltage in the vi but get an error that I can't edit an existing task.
Is this indicative of a software problem or a hardware problem?
Sorry if this doesn't make too much sense, I'm pretty new to labview DAQs.
