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Use log-file binding to associate a VI with the datalog file to use when logging or retrieving front panel data. You can have two or more datalog files associated with one VI. This might help you test or compare the VI data. For example, you could compare the data logged the first time you run the VI to the data logged the second time you run the VI.

Select Operate»Data Logging»Clear Log File Binding to clear the log-file binding. LabVIEW prompts you to specify a datalog file the next time you run the VI either with automatic logging enabled or when you choose to log data interactively.