Enumeration method for automatically determining an object identifier of a first network node of a can bus having several network nodes

Abstract

The invention relates to an enumeration method for automatically determining an object identifier of a first network node of a CAN bus having several network nodes, wherein the method is performed by the first network node and includes: receiving an initialization message containing an enumeration call via the CAN bus; sending an enumeration message via the CAN bus in response to the initialization message, wherein the enumeration message specifies a first identifier bijectively assigned to the first network node among all network nodes of the CAN bus; receiving a respective enumeration message from at least one second network node of the CAN bus, which specifies a respective second identifier as an object identifier uniquely assigned to the respective second network node among all network nodes of the CAN bus; sorting the set of identifiers, which contains the first identifier and all second identifiers received by the first network node (8) since receiving the initialization message, according to a predetermined sorting criterion to obtain an order of the identifiers in the set; and determining an object identifier of the first network node in a one-to-one dependency on the position of the first identifier in the order. Furthermore, a network node for carrying out the enumeration method and a communication network with a plurality of such network nodes are described.

Dependencies are inferred from the claim text.