Add date and time stamp to continuously streaming data

[parajulis]

Hi all,

I am new to the LabView Environment and I am trying to setup a program to perform the following:

1. Prompt users to select an experiment 

2. Display prompt messages to guide the users through an experiment

3. Collect Data from NI-DAQ in continuous mode.

I have completed task 1 and 2 but for task 3, I want to add time stamp adjacent to each data acquired. But I have not been able to do so. Please suggests what changes can I make to the attached VI to achieve my goals. 

PS: Any suggestions on making the VI better would be highly appreciated.

Thanks 

[dsb@NI · Accepted solution]

I would try using the waveform instance of DAQmx Read to get time from the data acquisition system (and to time your loop). A little rearranging of the string manipulations, and here is an implementation that may work for you:

which produces a file like:

DP1 DP2 DP3 P1 8:02:26 PM 4/23/2021
0.0250 0.0250 0.0250 0.0250 8:02:37 PM 4/23/2021
0.0250 0.0250 0.0250 0.0250 8:02:38 PM 4/23/2021
0.0250 0.0250 0.0250 0.0250 8:02:39 PM 4/23/2021

...

[parajulis]

Thank you Doug,

That worked very well.