Has anyone got a working 8870 setup with 2way??

The system I installed works for setting the mode...Heat, Cool, Auto, Off,  but temp feedback, Setpoints, dont work. If I press the setpoint buttons up or down I get no fb on the 8811, I set it up as a 1way with the 232 strings and can get the setpoints working fine, but now have no fb.

The denon receiver, weather fb works fine,

I have changed Ports and then redid the commands, changed addresses, changed baud stil nothing for FB

Any ideas??

Cables have tested fine, as the 1 way 232 was sending fine(as well as I have metered them)

Thanks