PLC based wireless communications
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United States of America Patent
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Feb 2, 2010
Grant Date -
May 20, 2004
app pub date -
Nov 18, 2002
filing date -
Nov 18, 2002
priority date (Note) -
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Abstract
An apparatus and method for providing wireless communication for a Programmable Logic Controller (PLC). The PLC includes a central processing unit (CPU) card mounted on the backplane of the PLC, a CPU mounted on the CPU card and a means for wireless radio frequency communication coupled to the CPU so that the means for radio frequency communication and CPU communicate without using the PLC module bus.
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