Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus expansion or extension
Reexamination Certificate
2004-11-16
2009-08-25
Knoll, Clifford H (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus expansion or extension
C455S557000
Reexamination Certificate
active
07581053
ABSTRACT:
A distributed modular input/output system includes a primary wireless device adapted to be operatively connected to an associated industrial controller. A secondary wireless device is physically disconnected from the primary wireless device. The secondary wireless device is operatively connected to the primary wireless device by a primary wireless backplane link. At least one input/output module is operatively connected the secondary wireless device. An associated field device can be connected to the at least one input/output module for communication with the associated industrial controller via the secondary wireless device, the primary wireless backplane link, and the primary wireless device. Typically, a plurality of the secondary wireless devices are physically disconnected from the primary wireless device and each includes one or more of the input/output modules operably connected thereto. Each of the secondary wireless devices is operatively connected to the primary wireless device by a respective plurality of primary wireless backplane links.
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Brandt David D.
Engdahl Jonathan R.
Jia Qing
Kretschmann Robert J.
Pai Ram
Fay Sharpe LLP
Knoll Clifford H
Rockwell Automation Technologies Inc.
Speroff R. Scott
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