Welcome to openHab, Philip !
It would be easier if you could post more details.
Did you create it in the UI or did you use text configuration? How does the thing look like in your text config?
Btw: A title should reflect your topic. Simply “knx binding is not working” sounds as if e.g. there is something wrong with the binding in general.
Please check out “How to ask a good question”.
Kind Regards
Oggerschummer