Patent ID: 8031736
Filing Date: 2011-10-04
Classification: H04L,Y04S

Abstract:
1. An installation having: a plurality of components that are connected to one another via an Ethernet network, with at least a first component in the plurality having a device for reading data that are intended for that component from a sum frame by means of a sum frame protocol; and a device for reading the sum frame from the data part of an Ethernet Media Access Control (MAC) frame, with at least one of the components in the plurality having a device for embedding the sum frame in the data part of the Ethernet MAC frame, and having a device for transmission of the Ethernet MAC frame via the Ethernet network, and with at least one of the components in the plurality having a device for insertion of an identifier into the Ethernet Media Access Control (MAC) frame, which identifier indicates whether the data part of the Ethernet MAC frame contains the sum frame; wherein an evaluation circuit for evaluating a header of the incoming Ethernet MAC frame with respect to the identifier is connected to the first component; and wherein the first component is connected to the Ethernet network, with the first component having a changeover switch by means of which i) shift registers of multiple first components in the plurality are bridged in response to finding that the identifier indicates presence of sum frame data in the Ethernet MAC frame by the evaluation circuit at the same time and ii) an identification circuit for identifying the identifier is connected to a transmission, with data protection being provided at the same time by the first component.