Seems like you are looking for a card similar to the one that Molex, AB and Prosoft built for a contrologix chasis but controls profibus drives and IO.
AFAIK no one makes one for profinet yet. I am very suprised no one has done it yet. I know lots of people apps where it would be useful. I have a lot of siemens master drives here on profibus and when I change them to sinamcs it would be nice to use them on profinet.
Good thing though is siemens has made interfaces for thier drives and IO to be controlled over Ethernet IP (Contrologix)if you are using Siemens gear.