The signal from the 16-bit digital terminal on the front panel is the digital representation on the waveform downloaded to the NI-5411's memory. The only way to generate a non-periodic pattern is to create one in software, and download the waveform to the NI-5411's memory for generation. It would be easier to make this waveform as I16 data type, as that is what is used by the hardware to generate the analog data. The signal on the Digital Pattern out should be exactly what is loaded as the I16 waveform.
If a floating point data type ( ex. double ) is used to create the waveform, the signal at the Digital Pattern connector may not be known, as NIFgen converts the double data type to I16 integer as the waveform is downloaded to the NI-5411.
