MEMORY RECOVERY SCHEME AND DATA STRUCTURE IN A HEATING, VENTILATION AND AIR CONDITIONING NETWORK
First Claim
1. A method for updating a parameter in a device in an HVAC network, comprising:
- sending, by an interface to said device;
a) a parameter value change message, andb) a new value of an installer parameter;
determining by said device if said new value is within an allowed range;
updating said parameter with said new value in a memory of said device if said parameter update is within said allowed range;
sending, by said device, said parameter to an interface; and
relaying, by said interface device, said parameter to an active subnet controller of said HVAC network.
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Abstract
The disclosure provides systems and methods for updating a parameter in a device in an HVAC network. In various embodiments, a method comprises a sending by an interface device to the device: a) a parameter value change message, and b) a new value of an installer parameter. The method includes the device determining if the parameter update is within an allowed range, and updating the parameter in a memory of the device if the parameter update is within the allowed range. The method further includes the device sending the parameter to an interface device. The method still further includes relaying the parameter to an active subnet controller by the interface device. In further embodiments, the method determines whether a parameter definition is a changed parameter definition. If the definition is the changed parameter definition: a device definition parameter message is sent to the interface device from the device in the HVAC network. A device parameter value is also sent from the HVAC device for each parameter in a same group of parameters affected by the change of definition.
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Citations
20 Claims
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1. A method for updating a parameter in a device in an HVAC network, comprising:
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sending, by an interface to said device; a) a parameter value change message, and b) a new value of an installer parameter; determining by said device if said new value is within an allowed range; updating said parameter with said new value in a memory of said device if said parameter update is within said allowed range; sending, by said device, said parameter to an interface; and relaying, by said interface device, said parameter to an active subnet controller of said HVAC network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11, 12)
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8. An HVAC system, comprising:
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a first device; an interface, coupled to said first device, that can send to said first device; a) a parameter value change message, and b) a new value of an installer parameter, wherein said first device can; a) store said parameter in a memory of said first device if said parameter update is within an allowed range, and b) send said parameter to said interface device; and an active subnet controller, coupled to said interface, that can receive said updated parameter. - View Dependent Claims (9, 10, 13, 14)
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15. An HVAC system, comprising:
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a first device; an interface, coupled to said first device, that can send to said first device; a) a parameter value change message, and b) a new value of an installer parameter, wherein said first device can; a) store said parameter in a memory of said first device if said parameter update is within an allowed range, and b) send said parameter to said interface device; and an active subnet controller, coupled to said interface, that can receive said updated parameter, wherein said updated parameter is received over an Internet. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification