摘要
FF中使用发布式数据传输机制支持其发布 /预订接收型通信关系。根据发布式传输机制的特点 ,分析了网络带宽和时钟精度与令牌发布的时间间隔之间的关系 ,给出了H1、H2总线中时间间隔的理论上限和理论下限。
The published data transfer mechanism supports publisher/subscriber communication in Foundation Fieldbus. In this paper, we analyze the relationship between the slot time of issuing compel data and the bandwidth of network, as well as between the slot time of issuing compel data and the precision of clocks. Theoretical upper bound and lower bound of the slot time in H1&H2 are given.
出处
《基础自动化》
CSCD
2001年第3期25-27,53,共4页
Basic Automation
