LIN Communication Principle

In a LIN cluster a distinction is made between the LIN slave and LIN master. The LIN master controls the communication behavior of the LIN slaves and thereby controls all data exchanges in a LIN cluster. The task of communication control is assigned to the LIN master, which is responsible for cyclic processing of the LIN schedule and calling of the associated LIN messages (LIN frames). A call is made using the relevant frame header, which is evaluated by all of the LIN slaves. A LIN slave supplements the frame header by adding the frame response to the LIN frame. Because the LIN frame is characterized by an identifier, each LIN frame is available to be received by each LIN slave (Broadcast).

Characteristic of data exchange in the LIN cluster is its scheduled flow and therefore its predictability. However, the advantage of deterministic data communication is accompanied by the disadvantage of the inability to adequately react to events. Moreover, relatively low availability must be attributed to a LIN cluster, since failure of the LIN master results in a failure of the entire LIN cluster.