Operating and display protocol
The operating and display protocol (abbreviated to BAP ) is a protocol within networked control devices in motor vehicles, with which a separation of function control devices and display control devices is carried out. The purpose of this separation is a simpler further development of such now specialized control units. The BAP uses layers 2–7 within the OSI model , and layer 1 (and in some cases also layer 2) take over common protocols such as LIN , CAN or Flexray . An example of the interaction between function and display control units is the activation of an air conditioning function via operating menus in the vehicle.