How to Retrieve Live Data from cDAQ-9171

[ZaneK]

Hello, 

I have a cDAQ-9171 that I am trying to retrieve sensor data from. I need to continuously retrieve data from the cDAQ-9171 so that I can store / use the data within various applications.

I have viewed the raw sensor data inside LabView. However I don't believe LabView will be able to provide the solution I am looking for - as I need to continuously retrieve the data, whereas LabView seems to be structured "tell me how long to record data, then I will output that much data to a file".

Ideally I need a solution that works something like this:

Python Program (Python is only an example, any programming language will be fine):

----

<import any library I need>

while true:

  var data = <function call to retrieve data from cDAQ-9171>

  <do something with the data>

----

So the program works in an infinite loop retrieving data from the cDAQ-9171. 

My key questions - is doing something like this possible (continuously retrieving data so that it can be used inside a program)?

I need to store the data inside a database so that I can retrieve live sensor data from another program. 

Any help would be greatly appreciated. 

Thanks

[Kevin_Price]

That's an extraordinarily common thing to do in LabVIEW.  in the shipping examples (Help->Find Examples->Hardware->DAQmx) for continuous voltage input.   (If you want to use it as a starting point, make sure you "Save As..." with a different name to a new location of your own.)

-Kevin P

[sfrosty]

Definitely! Check out the "Voltage-Continuous Input.vi", an examplet that ships with LabVIEW.

From LabVIEW click on Help/Find Examples/Hardware Input and Output/DAQmx/Analog Input/Voltage - Continuous Input.vi

That'll get you going! 😉