Dilog DQ614 Controller and RT11..

I have some cards here I want to build a PDP11 from, at the current that's something around an KDF11-A CPU (22bit). Currently I have problems with some Dilog Controller, this is an DQ614 that emulates 4 RL02 Drivers out of two 20MB MFM disks (Microcience HH725). I can install and successfully boot RT11SB.SYS and RT11FB.SYS but not RT11XM oder RT11XB. XXDP2.5 is working fine. Nowhere in the Dilog Documentation is something mentioned about 18 or 16 bit addressing limitations of that controller, the pinout clearly has 22 bits. (http://www.bitsavers.org/pdf/dilog/) I have an RQDX3 with 2 TEAC FD55-GFR-184 Floppies on this system too, I can boot RT11XM oder RT11XB (same files!) from there fine... If I try that from DL0 or DL1 I'll always get a trap to the ODT (0002), regardless if I use the Dilogs own Bootloader or that from an 11/53 or an 11/73 CPU.