Hi Richard
I have finally got it all to work, this is the set up
Core
General screen PBR-9D set to SBUS
General screen PBR-26D set to SBUS
Royal screen TX set to P2-BUS S.BUS
PBR-9D plugged from Fast track to RX1
PBR-9D plugged from PBUS to TELE
PBR-26D plugged from fast track to RX2