Use front panel data logging to record data for use in other VIs and in reports. For example, you can log data from a graph and use that data in another graph in a separate VI.

Each time a VI runs in retrieval mode, front panel data logging saves the front panel data to a separate datalog file, which is in binary format.

A datalog file for front panel data logging contains individual records. Each record contains the following:

  • A time stamp for the record
  • The data (the values of front panel controls and indicators) from each time you ran the VI

When you access a datalog file, you select which record you want by running the VI in retrieval mode and using the front panel controls to view the data. When you run the VI in retrieval mode, a numeric control appears at the top of the front panel so you can navigate among the records.

Note LabVIEW does not support front panel data logging through remote panels.

For information about interactively viewing front panel records in retrieval mode, refer to Viewing Logged Front Panel Data Interactively.