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System and method for wireless communication between wired field devices and control system components

  • US 7,876,722 B2
  • Filed: 05/31/2006
  • Issued: 01/25/2011
  • Est. Priority Date: 05/31/2006
  • Status: Active Grant
First Claim
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1. A communication system comprising:

  • a field linking unit electrically coupled to a field device and operable to transfer a plurality of signals between the field device and the field linking unit using a first protocol;

    a first system gateway electrically coupled to a first control system component via a first communication link; and

    a second system gateway coupled to the first system gateway via a second communication link, electrically coupled to a second control system component via a third communication link, and operable to transfer at least some of the plurality of signals between the second system gateway and the second control system component using a second protocol via the third communication link, wherein the first communication link is physically separate from the third communication link;

    wherein;

    the field linking unit and the first system gateway are operable to communicate wirelessly,the first system gateway is operable to;

    transfer a first signal of the plurality of signals to the first control system component via the first communication link based on a first indication that the first signal is required by the first control system component, andforward a second signal of the plurality of signals to the second system gateway via the second communication link based on a second indication in the second signal that the second signal is required by the second control system component, andthe first protocol and the second protocol are related protocols.

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