Failure in voltage input measurement

[Braulio]

I want to measure voltage with the mcculw python library. Whenever I try to use the functions a_in() / v_in() to measure voltage inputs, passing the input channels as variables, the code just runs endlessly without displaying the measurement. Here I provide an example in which I re-wrote the function supported_ranges and it gets stuck when getting to the a_in() function when using the valid input voltage channels.

Days ago I was able to send a voltage through an output channel and read it through an input one, but now I can't even read. If I run the file v_in.py it will run endlessly without getting to the end of the code, being stuck in the a_in() function. 

[JColvin]

I've moved this thread to a more appropriate section of the Forum where the engineers more familiar with the MCC Universal Library will be able to see your query.

Thanks,
JColvin

[Braulio]

I tried to measure voltage with instacal and it worked... still confused about why it won't work with mcculw library. 

[Fausto]

Which MCC daq device are you using?