Retrieves user-defined tag information from the data type stored in variant. This VI returns an error if variant does not contain a user-defined tag.

A user-defined tag is a data type for system resources. A user-defined tag is allocated in a static manner when a VI begins execution.

Note The user-defined tag data type is installed with some add-ons, such as NI-RIO.


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Inputs/Outputs

  • cfxdt.png variant —

    variant specifies the variant data from which you want to retrieve data type information.

  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • istr.png class name —

    class name returns the class name of the user-defined tag stored in variant.

    For example, a RIO Device returns a class name of nirioResource.

  • ifxdt.png user data —

    user data returns the internal information included with the user-defined tag stored in variant.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.