Hi,
NI-DAQ, the driver software for the 6024E, does not support separate analog output groups. The data must be generated from the same buffer and at the same update rate. However, you can create waveforms of different frequencies by manipulating the data buffer to have different cycles of each waveform. For example, you can create two sine waves. One sinewave with 10 cycles over 1000 points, and one with 1 cycle over 1000 points. The frequencies of both waveforms will appear to be 10 Hz and 1 Hz, respectively.
Thanks,
Erin