First thing: A quick look up in the 6211 spec will show that the unit supports +-10V range, but not a 0-10V range, so the DAQmx driver will choose that range.
Second: If you read the manual you migth have found that you need to provide a bias current path on your input. Yes, the input outputs a tiny current called bias current, and without a draining path this current loads the small input capacity and results in a voltage that increase (or decrease, depending on current sign) until it reaches the input limit... your -10.62V that matches quite well the max range from the spec of about +-10.4V. So my assumtion is that you have a floating or no source connected 🙂
RTFM help 😄 😄
Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
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