How to check number of elements available in RT FIFO?

[tom_z]

Hi,

    Without using READ FIFO function is there a way to check the number of elements in RT FIFO? I am looking a function like the get queue status function VI.

    Thanks a lot!

    Regards,

    Tom

[GregFreeman · Accepted solution]

See this KB article

http://digital.ni.com/public.nsf/allkb/42E85A333767918B862570D800667FD8?OpenDocument

[Wire_Warrior]

I am having this exact question right now however the link to the document referenced does not give me access.  Is there a better link?

[Moorethoughts]

RT FIFO Read and Write functions have had a "# elements" output since LabVIEW 8.2.  You should be able to utilize that output to determine how many elements are left in the FIFO.  If you have a version of LabVIEW previous to LabVIEW 8.2, you can utilize the attached VI to determine how many elements are left.

Regards,

Keith M.

Applications Engineer