论文部分内容阅读
1标准有助于以太网保持同步在复杂系统中,如果要联网装置完美地执行任务,需要给以太网一些帮助。在GB/T25931-2010(IEC 61588-2009/IEEE 1588 v2)网络测量和控制系统中的时钟同步协议支持透明时钟中,增加了版本1中使用的边界时钟,能在非常大的网络拓扑中得到更好地处理。它的异步特性使它很难保证包在实时中有序交付,因此很多用户增加了IEEE1588和ODVA的CIP同步(CIP Sync)同步所有操作。
1 standard helps keep Ethernet in sync In complex systems, there is some need for Ethernet if networking devices are to perform their task perfectly. The clock synchronization protocol supported in GB / T25931-2010 (IEC 61588-2009 / IEEE 1588v2) networked measurement and control system adds the boundary clock used in version 1 to transparent clocks and can be obtained in very large network topologies Better handling. Its asynchronous nature makes it difficult to guarantee the orderly delivery of packets in real-time, so many users have added all of the synchronization of CIP Sync by IEEE1588 and ODVA.