Determines whether a configuration data refnum is valid.

This VI considers a configuration data refnum to be invalid if you do not open the reference with the Open Config Data VI, the file referenced does not exist, or the reference is already closed when passed to this VI.


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Inputs/Outputs

  • cdlrn.png refnum —

    refnum is the reference number of the configuration data.

  • ibool.png not a config data refnum —

    not a config data refnum is TRUE if refnum is not a valid configuration data refnum.