Hi,
How to connect 4 potentiometers to an sbRIO 9641 to measure voltage outs of the 4 pots from 4 AI channels?
This is what I did, but it does not seem to work.
I connected all +ve terminals (one ends of each pot) to the +ve of a 5V source.
All -ve terminals (other extreme ends of each pot) to -ve of the 5V source and then from this point to the AIGND
Then, each of the 4 wipers (middle terminals) to 4 AI channels.
With 2 potentiometers I got the readings (from two AI channels) as around 10.06V each. How is it possible when I supplied just 5V source? I really don't understand how sbRio works internally. Also each AI channel has a limit of upto 10V. Now I've got 10.06V. Hope my sbRIO has not been damaged.
Can anyone please tell me how to wire 4 potentiometers to an sbRIO?