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Method and apparatus for a plug and play polling loop system

  • US 6,721,283 B1
  • Filed: 10/11/2002
  • Issued: 04/13/2004
  • Est. Priority Date: 10/11/2002
  • Status: Active Grant
First Claim
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1. A method for a plug and play polling loop system comprised of a plurality of product devices such as sensors in different zones of the polling loop system which are controlled by a system control, comprising:

  • prewiring all of the product devices to the polling loop, wherein during installion a zone address for each product device, which is derived from a polling loop site plan, is set by a person installing the device by setting an n-bit DIP switch;

    enrolling all of the prewired product devices connected to the polling loop, during which the system control uses serial number (S/N) group global polling protocols for global polls of the S/Ns of a number of product devices at one time;

    for each of the unique S/Ns thus obtained, the system control follows with a S/N unit poll to receive from the product its associated zone address, such that the control automatically enters all of the unique S/Ns and their associated zone addresses into its data base.

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