First time I have seen this error (XA2 Multiple address)... This is accompanied with the No Contact on another XA2 (due to bad power supply). Just curious what the message meant?
It means that two or more IQAN modules with same address detected on the same CAN bus.
In this case i think you also can not find one of you other modules.
You might have the wrong ID-tag in the XA2_Main_Valve connector.
The XA2_Main_Valve had a bad fuse causing the no contact.
Not sure why the system thought it had multiple modules with the same address for the XA2_Carrier.
Once the fuse was changed everything worked normally again.
Customer support service by UserEcho