Communication protocol system and method for a distributed-architecture heating, ventilation and air conditioning network
AssigneeLennox Industries Inc.
InventorsWojciech Grohman, Darko Hadzidedic
Life of this patent
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Abstract
The disclosure provides an HVAC data processing and communication network and a method of manufacturing the same. In an embodiment, the network includes a user interface and a system device. The user interface is configured to publish a privilege request message to a data bus. The system device is configured to receive messages via the data bus and to store configuration data in nonvolatile memory. The system device is further configured to enable a privileged operating mode not normally available to a user of the network in response to the privilege request message.
Claims20
An HVAC data processing and communication network, comprising:
- a user interface configured to publish a privilege request message to a data bus;
- a system device configured to:
- receive messages via said data bus;
- store configuration data in nonvolatile memory;
- and
- enable a privileged operating mode not normally available to a user of said network in response to said privilege request message.
A method of manufacturing a device networkable in an HVAC data processing and communication network, comprising:
- configuring a physical layer interface to interface to a network;
- configuring a communication module to send and receive messages over said network via said physical layer interface;
- configuring a non-volatile memory to store configuration data;
- and
- configuring a functional block to respond to a privilege request message received by said communication module thereby enabling a privileged operating mode not normally available to a user of said network.
A system device of an HVAC data processing and communication network, comprising:
- a physical layer interface configured to interface to said network;
- a communication module configured to send and receive messages over said network via said physical layer interface;
- a non-volatile memory configured to store configuration data;
- and
- a functional block adapted to respond to a privilege request message received by said communication module thereby enabling a privileged operating mode not normally available to a user of said network.
Dependencies are inferred from the claim text.