Use the error in and error out clusters in each VI you use or build to pass the error information through the VI. In most cases, the source cluster element also identifies where the error occurred. If error in detects an error, the VI returns the error information in error out and does not continue to run. By default, LabVIEW automatically handles any error when a VI runs by suspending execution, highlighting the subVI or function where the error occurred, and displaying an error dialog box. You can disable automatic error handling.
Complete the following steps to see an example of how to use the error clusters in a VI.
If an error occurs, the Case structure executes before reaching this VI. The VI does not execute the main code but instead passes the error information straight through the Case structure to the error out cluster. If no error occurs, the VI creates a new report.