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Fiber optic control network and related method

  • US 6,961,306 B2
  • Filed: 07/10/2002
  • Issued: 11/01/2005
  • Est. Priority Date: 07/10/2002
  • Status: Expired due to Fees
First Claim
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1. A master-slave control network, comprising:

  • a plurality of network nodes, said network nodes comprising a plurality of master nodes and a plurality of slave nodes; and

    at least one fiber optic ring connecting said network nodes in a loop configuration;

    wherein said master nodes share concurrent control over said network nodes;

    wherein each of said master nodes comprises a volatile memory area for storing operational data; and

    wherein said master nodes are configured to maintain identical information in their respective volatile memory areas.

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