SYSTEM RECOVERY IN A HEATING, VENTILATION AND AIR CONDITIONING NETWORK
First Claim
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1. A method for employing a first subnet controller in an HVAC network, comprising:
- conveying a fixed parameter from a first networked device in said HVAC system to said first subnet controller;
conveying a variable parameter from said first networked device in said HVAC system to said first subnet controller; and
providing an option to a user to modify said variable parameter.
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Abstract
Various embodiments of systems and methods of employing a first subnet controller in an HVAC network. The method comprises conveying a fixed parameter from a first networked device in the HVAC system to the first subnet controller, conveying a variable parameter from the first networked device in the HVAC system to the first subnet controller, and providing an option to a user to modify the variable parameter.
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Citations
20 Claims
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1. A method for employing a first subnet controller in an HVAC network, comprising:
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conveying a fixed parameter from a first networked device in said HVAC system to said first subnet controller; conveying a variable parameter from said first networked device in said HVAC system to said first subnet controller; and providing an option to a user to modify said variable parameter. - View Dependent Claims (2, 3, 4, 5)
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6. A HVAC system including a first subnet controller, comprising:
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a fixed parameter retriever configured to retry a fixed parameter from a first device in said HVAC system and convey said fixed parameter to said first subnet controller; a variable parameter retriever configured to retry a variable parameter from said first device in said HVAC system and convey said variable parameter to said first subnet controller; and a user interface, coupled to said first subnet controller, configured to allow a user to modify at least said variable parameter. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. The system of claim 39, wherein said determination occurs with an occurrence of either:
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a) a full feature scan, and b) a full parameter scan.
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17. A HVAC system including a first subnet controller, comprising:
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a fixed parameter retriever configured to retry a fixed parameter from a first device in said HVAC system and convey said fixed parameter to said first subnet controller; a variable parameter retriever configured to retry a variable parameter from said first device in said HVAC system and convey said variable parameter to said first subnet controller; and a user interface, coupled to said first subnet controller, configured to allow a user to modify at least said variable parameter; the subnet controller further configured to generate a heartbeat message in an HVAC network, comprising; a heartbeat message timer, and a heartbeat generator configured to; a) generate a heartbeat message by a first subnet controller upon said first subnet controller taking active control of a subnet of said HVAC network; b) send another heartbeat message if said subnet controller has detected a subnet controller message on said subnet from a second subnet controller; c) send another heartbeat message if a specified amount of time has elapsed since a previous heartbeat message has been generated by said heartbeat generator. - View Dependent Claims (18, 19, 20)
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Specification