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Method and system for sending messages to multiple locations in a control system

  • US 6,801,529 B1
  • Filed: 06/08/1999
  • Issued: 10/05/2004
  • Est. Priority Date: 06/08/1999
  • Status: Expired due to Term
First Claim
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1. A method for sending messages to multiple locations in a control system that includes a plurality of master controllers, each master controller controlling a plurality of devices and having a corresponding system number, said method comprising the steps of:

  • defining a set of locations by sequentially addressing each of a plurality of locations in said control system, a given one of said locations being sequentially addressed by first indicating the system number of a particular master controller, then indicating the device number of a selected device controlled by the particular master controller, and finally indicating the port number of a selected port associated with the selected device;

    changing the set at selected intervals by dynamically adding and removing locations from the set; and

    executing an instruction to send a single message to the set, in order to send the same single message to each of the plurality of locations in the set.

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