By using an event with a timer handler passed to record data on change in control

Hello

I'm still learning labview and read the previous posts and is not an appropriate solution, your recommendations would be appreciated.

I am designing a .vi following the results of a race for a 5/10 k. Once the .vi is started, the time elapsed function begins and is displayed on the front panel. This will continue until the program has been stopped with the "Stop" button on the front panel. While this timer goes, if the "Bib" control value is changed, it records the new bib number and elapsed time of the event. I have so much work, but I have a few questions.

First of all, I read that it is generally bad practice to use a tunnel of automatic indexing with a while loop, which I am doing. Instead, should I be manually indexing the array, array 'Race by bib number time' within the structure of the event or the table? This would allow me to see the table of 'Race by bib number time' update when the program is running?

Second, given that I don't want recorded if the 'bib number' is not changed, I have no wired anything towards the tunnel exit in the case where the time-out. Of course, this will send the default zero to my table and store unnecessary data points. If I use the default-1 entry to the event of timeout and put the "elapsed time" outside the structure of the event, the "elapsed time" does not appear on the front panel. How can I change this to avoid storing as many lines that are only zeros?

The .vi is attached to help you understand my question.

Thanks in advance for your help.

Brian

fromm8, thank you.

In the event that someone looking for this solution in the future, I am attaching my final .vi.

Tags: NI Software

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