KNX - How to debug
In Project Designer you are able start a debugging port for easy troubleshooting on your installation. Simply enable the debugging by selecting the feature and choose a UDP port for the traffic to be sent to and upload the project to the controller.
Then open a terminal software e.g. Docklight Scripting, and enter the parameters you entered in Project Designer. All communication will be broadcasted to 255.255.255.255 on your assigned port.
Screen dump from Docklight Scripting.