can fd

How does messaging work in CAN FD? How are PGNs and SPNs defined for CAN FD? For Extended CAN, SAE J1939-71 defines PGNs and SPNs. All the PGNs and SPNs defined in SAE J1939-71 don't apply to CAN FD? For example, in SAE J1939-71 PGN 65267 is Vehicle Position. There are two SPN's in this...