File I/O with Text-Based Measurement Files
Use text-based measurement files (.lvm) to save data that the Write To Measurement File Express VI generates. The text-based measurement file is a tab-delimited text file you can open with a spreadsheet application or a text-editing application. In addition to the data an Express VI generates, the .lvm file includes header information about the data, such as the date and time the data was generated. LabVIEW saves data with up to six digits of precision in a .lvm file. Use binary measurement files (.tdm) to exchange data with higher precision.
Use the Read From Measurement File Express VI to read data from a .lvm file.
The .lvm file uses commas as a delimiter between numbers. To convert data in a .lvm file from a string to a number, specify the decimal separator as a period, using the localization code format specifier.
Refer to the NI Developer Zone for more information about .lvm files.
Resources
- Developing Custom Measurement and Control I/O Hardware with the LabVIEW FPGA Module and - NI Developer Zone
- Developing Measurement and Control Applications with the LabVIEW FPGA Module and Reconfigurable I/O - NI Developer Zone
- Working with .m file Scripts in NI LabVIEW for Text-Based Signal Processing, Analysis, and Math- - NI Developer Zone
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