Hi,
I would check to make sure that the lvm file created with the Write LabVIEW Measurement File.vi is not empty. If the file is empty, you’ll want to check that the Write LabVIEW Measurement File.vi is programmed to correctly write out your values to the file. If the file is not empty, then you’ll want to look at how the Read LVM File.vi is configured. What is the segment size that you’re reading? If you’ve set the segment size to a specified size, make sure that the size specified is not greater than the size of the segments in the actual file.
Hope this helps. Good luck.
Kileen