Hi Alex,
The full 256 levels (8bits) are mapped to +/-4divs with no headroom on the DS4000, so it's not mapping correctly to RUU.
If I'm going to get the scaling correct for the DS4000, I need to be sure about the exact amount - so if you could please do the following:
1) Set a square wave on your DSO so that it's just barely touching the Rigol's screen limits at the top and bottom - using vertical position and fine scale adjustments.
2) Then click 'Open' on RUU and record a couple of frames on the DSO (it doesn't matter how many - as long as it's > 2).
3) Click 'Stop'
4) Set 'End Frame' to '2'
5) Click 'Frames' -> 'Compile' - > 'Array' -> 'Save'
6) ZIP the created .fra file and attach it to a post here. Then I will be able to see precisely what ADC values are mapped. Thanks.
It reported not responding once when I tried to save a waveform to CSV.
Ok, perhaps the timeout needs to be longer for ASCII transfers - I'll adjust that.
One other question on your connection problem - did you restart RUU or the DSO or both?