Bus subscriber device for connection to a line-redundant, serial data bus and method for controlling the communication of a bus subscriber with a line-redundant, serial data bus

摘要

Bus subscriber device for connection to a line-redundant, serial data bus over which data is exchanged according to a predetermined protocol, comprising: a data transmission unit, at least two data reception units connected in parallel, a line selection logic, and at least two bus communication interfaces to Connection to a corresponding number of lines of the data bus, each of the data receiving units being connectable via an associated bus communication interface to an associated line of the data bus and means for receiving a data block from the associated line of the data bus and means for forwarding the received data block to the line selection Logic, and wherein the line selection logic comprises means for selecting a line of the data bus as a receive line and forwarding the data block received over the selected receive line, each of the at least two data received Gseinheiten is assigned at least one own timer device.