GF82.85-P-3008QMU Data Transfer Between COMAND and Instrument Cluster Function

GF82.85-P-3008QMU Data Transfer Between COMAND And Instrument Cluster Function
- with CODE (530) COMAND APS USA (with navigation system)


Actuation of the COMAND operating, display and control unit (A40/3) on the multifunction steering wheel (MFL)
Using the buttons of the multifunction steering wheel (MFL) and multifunction display (A1p13) of the instrument cluster (A1) the following systems controlled by the COMAND operating, display and control unit (A40/3) can be operated and information on the systems displayed:
^ Audio systems (e.g. radio)
^ Navigation system
^ Telephone

The complete data between the instrument cluster (A1) and the COMAND operating, display and control unit (A40/3) is exchanged via the Controller Area Network bus class B (interior) (CAN-B).

All the button operations on the multifunction steering wheel (MFL) are read in by the instrument cluster (A1) via the local interconnect network (LIN). The instrument cluster (A1) links the signals with the system just shown on the multifunction display (A1p13) (audio, navigation, telephone). This interpretation is necessary because the operation of the buttons depends on the current content of the multifunction display (A1p13). The interpreted data is then placed on the CAN B by the instrument cluster (A1) and received by the COMAND operating, display and control unit (A40/3).

Changing the system on the multifunction display (A1p13) does not effect the presentation on the display of the COMAND operating, display and control unit (A40/3), but the presentation on the display of the COMAND operating, display and control unit (A40/3) has effects on the presentation on the multifunction display (A1p13).

The instrument cluster (A1) receives the current time from the COMAND operating, display and control unit (A40/3) as this is received automatically via the Global Positioning System (GPS) and therefore does not have to be adjusted.