Alarm and diagnostics system and method for a distributed architecture heating, ventilation and air conditioning network
First Claim
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1. An HVAC data processing and communication network, comprising:
- a first system device configured to communicate via a data bus and having a first device ID assigned thereto;
a second system device configured to communicate via said data bus and having a second device ID assigned thereto; and
a subnet controller coupled to said data bus and configured to address said first and second system devices over said data bus using said first and second device IDs,wherein said first system device is configured to determine that a first alarm condition exists when said first and second device IDs are a same device ID.
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Abstract
The disclosure includes an HVAC data processing and communication network and a method of manufacturing the same. One embodiment of the network includes a subnet controller, a system device and a system status display. The subnet controller is configured to communicate via a data bus. The first system device is configured to communicate via a data bus. The system status display is associated with the first system device and configured to produce a visual signal when the first device detects an error or alarm condition.
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Citations
20 Claims
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1. An HVAC data processing and communication network, comprising:
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a first system device configured to communicate via a data bus and having a first device ID assigned thereto; a second system device configured to communicate via said data bus and having a second device ID assigned thereto; and a subnet controller coupled to said data bus and configured to address said first and second system devices over said data bus using said first and second device IDs, wherein said first system device is configured to determine that a first alarm condition exists when said first and second device IDs are a same device ID. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of manufacturing an HVAC data processing and communication network, comprising:
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configuring a first system device to communicate via a data bus using a first device ID; and configuring a second system device to communicate via said data bus using a second device ID; and configuring a subnet controller to address said first and second system devices over said data bus using said first and second device IDs; and configuring said first system device to determine that a first alarm condition exists when said first and second device IDs are a same device ID. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A first HVAC data processing and communication network system device, comprising:
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a network interface configured to interface to a data bus; a memory; a system status display; and a local controller configured to; accept via said data bus messages addressed to a device ID; determine that a first alarm condition exists when a message is detected on said data bus from a second system device using said device ID. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification