LabVIEW
Save data between cursors using write to measurement file block.
Hi Stacy,
@StacyM=) wrote:
I,ve been working on a VI for my bioengineering class and I am trying to design a VI in which I can save the data between cursors using write to measurement file block.
That's fine! It's also fine you attached your code instead of showing just some images… 🙂
Is there any problem or do you just want to share some code?
An Event Structure will return *only* when an event is triggered. In your case, it will only ever return when Acquire is clicked. It's not an infinite loop exactly, more just it gets stuck waiting forever.
A proper architecture here would help (like a Producer-Consumer), but if you're just kinda trying to get something quick and dirty you aren't terribly far off.
Your problem is the nested loops. You only need one loop for this task. Add another event to the Event case that's a Timeout event, and put the Timeout value in a shift register. Put the DAQ Assistant task in the Timeout case.
Add another Event case for clicking the Acquire button. If it's True, change the value in the shift register to 0. If false, to -1 (that will disable the Timeout case, so your DAQ Assistant won't get called).
Last, put the code for your Acquire inside the event case. Right now, the acquisition happens EVERY loop, and you only want it to happen once.
Try something like the attached. It's super quick and dirty and I don't have DAQ hardware hooked up, so it's untested, but it should be close and will at least get you moving forward.
