发明名称 |
FIELDBUS MESSAGE QUEUING METHOD AND APPARATUS |
摘要 |
<p>A method and apparatus are provided to allow at least portions of two fieldb us messages to be stored in a fieldbus device (30). The fieldbus device (30) includes a media access unit (32), a fieldbus communication controller (34), and a controller (36). The media access unit (32) is coupleable to a fieldbu s loop (12) to receive fieldbus signals and provide a digital bitstream relate d to the fieldbus signals. The fieldbus communication controller (36) assemble s data segments relating to at least portions of two fieldbus messages from th e bitstream and stores the segments in a receive FIFO memory (46). The controller (36) is adapted to read the segments from the receive FIFO (46) memory and act upon fieldbus messages.</p> |
申请公布号 |
CA2367689(A1) |
申请公布日期 |
2000.09.21 |
申请号 |
CA20002367689 |
申请日期 |
2000.03.14 |
申请人 |
ROSEMOUNT INC. |
发明人 |
KAMMANN, PAUL D.;DAVIS, BRUCE B. |
分类号 |
G05B15/02;G05B19/042;G05B19/418;(IPC1-7):G05B19/418 |
主分类号 |
G05B15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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