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

GF82.85-P-3008QMJ Data Transfer Between COMAND And Instrument Cluster Function
- with CODE (498) Japanese version

Operation of the COMAND operating, display and control unit (A40/3) on the multifunction steering wheel
With the aid of the multifunction steering wheel buttons and the 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 about the following systems can be displayed:
^ Audio systems (e.g. radio)
^ Navigation system
^ Telephone
^ TV

Data is exchanged between the instrument cluster (A1) and the COMAND operating, display and control unit (A40/3) via the audio gateway control unit (N93/1).

The audio gateway control unit (N93/1) functions as an interface between the class B (interior) controller area network bus (CAN-B) and the Media Oriented System Transport (MOST).
All buttons pressed on the multifunction steering wheel are read in by the instrument cluster (A1). The instrument cluster (A1) links these signals with the systems momentarily displayed 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 subsequently passed on the CAN-B by the instrument cluster (A1) and received by the COMAND operating, display and control unit (A40/3) via the audio gateway control unit (N93/1).

Changing the system on the multifunction display (A1p13) does not affect the display of the COMAND operating, display and control unit (A40/3). Changing the system on the display of the COMAND operating, display and control unit (A40/3), however, does influence the system displayed on the multifunction display (A1p13).

The instrument cluster (A1) receives the current time from the COMAND operating, display and control unit (A40/3) since this information is received automatically via the global positioning system (GPS).