Hi There,
I give you the link to the manual:
If you read from chapter 4-15 Onwards you will be able to know the different methods of measuraments (Differential, RSE, NRSE...)
DAQPad 6016 has Differential and NRSE methods.
You haven't got RSE but in fact NRSE is better (u can reject the common mode).
You can also perform an RSE measurament from an NRSE.
Configure the inputs as NRSE and then you just need to connect your signals to the relative channel input (AI0..15) and the common ground to AI SENSE. If you want to reduce the Common mode just introduce a Resistor between AI SENSE and AIGND. If you want to perform an RSE you can just connect AISENSE with AIGND or just leave this last one unconnected to get the ground reference of your card.
Regards,
Jaime Cabrera
NI Applications Engineering
Regards,
Jaime Cabrera
NI Applications Engineering Spain