PROFIBUS DP是一种多主从总线，采用主站间按令牌方式、从站和主站间按主从方式进行数据通信的工作方式。
PROFIBUS DP is a kind of multi master-slave station structure bus, and the communication between the masters is Token way, and subordination between the master and slaves.
某些ADC配置系统采用主从式模型，而其他一些系统则采用多主机模型。
Some ADC configuration systems follow a master-slave model while others follow a multi-master model.
介绍分支拓扑结构在主从式多机通信中的实现方法，电路结构及工作原理。
The implementation method and circuit structure as well as principle of branch topological structure in master slave communication are introduced in this paper.
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