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On-line monitoring of controllers in an environment control network

  • US 5,682,329 A
  • Filed: 12/20/1994
  • Issued: 10/28/1997
  • Est. Priority Date: 07/22/1994
  • Status: Expired due to Term
First Claim
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1. In an environment control network, the network including a computer, and a plurality of units for controlling a process, each of said units including an appliance for controlling a portion of said process, each of said plurality of units operatively associated with a controller, each of said controllers comprising:

  • an appliance output coupled to said appliance, said appliance output providing an appliance signal for controlling said appliance;

    a communication port;

    a memory;

    a processor coupled with said memory, said appliance output, and said communication port, said processor cyclically providing said appliance signal to control said appliance, said processor programmed to calculate and store weighted average data in said memory related to said appliance signal, wherein the computer is coupled to the communication port and the processor provides the weighted average data to said computer via the communication port in response to a summary command from said computer.

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