METHOD FOR STARTING A COMMUNICATION SYSTEM, A COMMUNICATION SYSTEM HAVING A COMMUNICATION MEDIUM AND A PLURALITY OF SUBSCRIBERS CONNECTED THERETO, AND SUBSCRIBERS OF SUCH A COMMUNICATION SYSTEM

摘要

A communication system having a communication medium and at least two subscribers connected thereto is described; the communication system being designed for transmitting data among the subscribers via the communication medium in communication frames of communication cycles via a time-triggered protocol. To accelerate the start of the communication system before the actual data transmission, the communication system has a device for generating at least two different synchronization frames per communication cycle and per channel, in at least one of the subscribers, e.g., in the node AB. For example, the device is designed as two separate communication controllers per transmission channel. As an alternative, the device may also be designed as a simple logic circuit, a so-called application-specific standard product. For generating the at least two different synchronization frames per communication cycle, the subscriber is designed as an active star coupler of the communication system. Data transmission in the communication system is preferably performed using the FlexRay protocol.