Safety network for industrial controller having reduced bandwidth requirements
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United States of America Patent
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Apr 13, 2004
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N/A
app pub date -
Sep 18, 2000
filing date -
Dec 22, 1999
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Abstract
A highly reliable industrial control system provides for the processing of redundant control signals on as little as a single serial network without overloading the network by preprocessing input signals for coincidence and sending only the coincidence signal either periodically or on a change of state. Further compression of sent data is realized by extracting a reduced subset of transmission states from the input signals and transmitting only the transmission states.
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