Hola,
Las Shared Variables permiten registrar eventos dinámicamente:
Shared Variable Event Structure Support (Programmatic Data Access Method)
The DSC Module enables you to monitor shared variables using the Shared Variables VIs and the Event structure. Shared variable Event structure support allows you to receive raw event data directly from the SVE. This programming model most closely resembles the execution model running in the SVE. Shared variable Event structure support is read-only but allows you to process all events, including value changes, quality changes, instantiations, and deletions, that the SVE passes. This programmatic data access method is useful in supervisory control applications where the VI needs to take a predefined action upon encountering a change in the system.
Ya probaste eso o es eso lo que no te funciona? ... Si no lo has probado en la paleta DSC Module -> Shared Variable -> tienes los VI "Enable Value Change Notifications.Vi" y "Request Value Change Notifications.VI", y puedes encontrar el ejemplo en labview\examples\lvdsc\Event Structure Support.
Saludos Cordiales,
Luis A. Mata C.
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