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;
determining whether an entire memory of said subnet controller is corrupted, said memory correlating to stored parameters for a given set of devices in a subnet of said HVAC network,wherein if said entire memory is corrupted, requiring all devices of said given set of devices to convey to said subnet controller;
a) a full feature manifest, andb) a full parameter scan.
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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
19 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; determining whether an entire memory of said subnet controller is corrupted, said memory correlating to stored parameters for a given set of devices in a subnet of said HVAC network, wherein if said entire memory is corrupted, requiring all devices of said given set of devices to convey to said subnet controller; a) a full feature manifest, and b) a full parameter scan. - View Dependent Claims (2, 3, 4, 5)
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6. An HVAC system including a first subnet controller, comprising:
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a fixed parameter retriever configured to retrieve 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 retrieve 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, wherein said first subnet controller is configured to
1) determine whether an entire memory of said subnet controller is corrupted, said memory correlating to stored parameters for a given set of devices in a subnet of said HVAC network, and
2) if said entire memory is corrupted, to require all devices of said given set of devices to convey to said first subnet controller;a) a full feature manifest, and b) a full parameter scan. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A HVAC system including a first subnet controller, comprising:
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a fixed parameter retriever configured to retrieve 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 retrieve 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 first 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 first 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; wherein said first subnet controller is configured to
1) determine whether an entire memory of said subnet controller is corrupted, said memory correlating to stored parameters for a given set of devices in a subnet of said HVAC network, and
2) if said entire memory is corrupted, to require all devices of said given set of devices to convey to said first subnet controller;a) a full feature manifest, and b) a full parameter scan. - View Dependent Claims (17, 18, 19)
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Specification