The Xaf Instance is the core object inside which the signal flow for that instance can be created.

- Core Object Id (execution order of core-object with-in core) and Instance Id (index of xAF instance with-in core, based on execution order) will be displayed as read-only fields.
- The sample rate and block length of the instance will control signal flow within the instance. You can change the sample rate and block length of the instance in the properties section.

Further information on signal flow creation is available in the GTT Signal Flow Designer guide.