BUS PARTICIPANT DEVICE AND METHOD FOR THE OPERATION OF A BUS PARTICIPANT DEVICE

摘要

The invention relates to a bus participant device (30) for receiving andtransmittingdata telegrams (18) via a serial data bus (12) according to a master/slavemethod,wherein the bus participant device (30) is configured to function, in a slavemode, asa slave (16) on the data bus (12) by means of a slave unit (36) that is partof the busparticipant device (30), wherein the bus participant device (30) comprises amasterunit (38) that can be activated. In particular, by means of the slave unit(36) and/orthe master unit (38), a transmission of data telegrams (18) via the data bus(12) canbe monitored for a malfunction of an active bus master (14). Preferably,subject to aresult of the monitoring, an activation of the master unit (38) by means ofthe slaveunit (36) or the master unit (38) can be effected. The invention furtherrelates to amethod for operating a serial data bus (12), and to various safety-criticaldevices.