How to setting time for acquire data in Continuous Measurement and Logging Template?

[90110]

Hello everyone!! I'm new.this is first time i use labview.

I start my project by use Continuous Measurement and Logging Template for my project. My project is measurement value of gas sensor.

and I would like  project can setting time for acquire data by user and working same "Stop Case" I have problem to write block diagram.

I think , i should use Elapsed Time for set target time and send condition to stop working but I don't know where is i should put Elapsed Time for working and how to write condition. i don't understand about Message queue.  

Please advise me/

Thanks 🙂

[90110]

This is my idea that i try

First, I add Enqueue Message for Enable time case

Then, I create Enable time cases and write box diagram fallow below pic.

 

But when i run program,it don't work, time don't count 

Please help me.

[BobRodge]

Hi 90110,

Do you have the Automatically Reset After Time Target enabled for the Elapsed Time.vi? This could be resetting the value of the indicator to 0.  Also, make sure the value you are putting in the Time Target(s) terminal is greater than 0. 

I encourage you to use Highlight Execution (Lightbulb on the task bar) in LabVIEW to watch how your code is working. This could help explain the behavior you are seeing.

Best of luck.