Electronic data communications system having data consumer defining data transmission structure
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United States of America Patent
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Dec 1, 1998
Grant Date -
N/A
app pub date -
Oct 18, 1996
filing date -
Oct 18, 1996
priority date (Note) -
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Abstract
Multiple processing units connected along a communication link to form an industrial controller may arrange for efficient block transfer of data by isochronous methods by forwarding to a data producer a connection message including the desired data structure having the variables necessary to be transmitted in a predefined order. Upon receipt of the data structure, the data producer may program itself to collect the data into the structure and forward the data on a periodic basis dictated by the connection message to the data consumer. Changes in the data structure may thus be accommodated efficiently in a manner that is invisible to the user.
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