Real-Time Measurement and Control
Data Acquistion Using NI 9252
Hello Everyone!
I'm very new to LabView.... started using it 2/3 weeks ago so some of these questions might be really basic. Now I am using the cRIO 9045 with a bunch of input/output modules which are all being programmed in the FPGA. I have to acquire an analog input voltage (using NI 9252 for this) after a certain delay ( 50us) upon rising edge of a trigger. I have been able to implement the delays and also acquire data after the delay. However, I am not seeing the right voltage value being read by the 9252. Even though I am a supplying a 2V input, I get a constant output of 10.5 from the modules. I am attaching the code snippet below. I suspect this has something to do with the fact that the NI 9252 is a delta sigma module and cannot just output data on demand?
Here's a screenshot of the signal that I'm feeding the program
The trigger is the pulse in blue and then I feed an analog input (in green) to the module with a 50 us delay.
