05-22-2017 09:12 AM
Hello,
I am relatively new to LabVIEW and thus would really appreciate your assistance/patience. I am trying to do something that seems to be very simple but I have not found a solution that has worked in manuals and online. I want to write to a LVM file in two columns one with a time stamp and one with data. I am using the express VI for Write to File. Is there a simple way to do this?
05-22-2017 09:15 AM
Turn your tunnel into concatenating mode so it creates a 1-D array instead of a 2-D array.
How long will this VI run? You don't want to continually build an array at a loop boundary eating up all your memory if it runs a long time.
05-22-2017 09:21 AM
What's an LVM file?
I find it a lot more useful to save data in a "standard" format like CSV or better yet a tab delimited text file.
Both of these types can then be easily opened in Excel for data analysis.
05-30-2017 02:23 PM
A LabVIEW Measurement File (LVM) is a text based file. The specifications for the file are here.
Specification for the LabVIEW Measurement File (.lvm)
From <http://www.ni.com/tutorial/4139/en/>
All the separate file formats have their strengths, for Excel viewing, the .xlsx file works well too.