DEVICE ABSTRACTION SYSTEM AND METHOD FOR A DISTRIBUTED ARCHITECTURE HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
First Claim
1. A method of manufacturing an HVAC data processing and communication network, comprising:
- configuring a first system device to receive an initial value of a specified dependent parameter;
configuring a subnet controller to;
determine that a value of said specified dependent parameter has been changed to a modified value after said first system device receives said initial value; and
in response to said determining, send to said first system device a message updating said specified parameter with said modified value.
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Accused Products
Abstract
The disclosure provides an HVAC data processing and communication network and a method of manufacturing the same. In an embodiment, the network includes configuring a first system device and a subnet controller. The first system device is configured to receive an initial value of a specified dependent parameter. The subnet controller is configured to determine that a value of said specified parameter has been changed to a modified value after said first system device receives said initial value. The subnet controller is further configured to send to said first system device, in response to said determining, a message updating said specified parameter with said modified value.
162 Citations
20 Claims
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1. A method of manufacturing an HVAC data processing and communication network, comprising:
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configuring a first system device to receive an initial value of a specified dependent parameter; configuring a subnet controller to; determine that a value of said specified dependent parameter has been changed to a modified value after said first system device receives said initial value; and in response to said determining, send to said first system device a message updating said specified parameter with said modified value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An HVAC data processing and communication network, comprising:
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a first system device configured to receive from a second system device an initial value of a specified dependent parameter; and a subnet controller configured to; determine that a value of said specified parameter has been changed to a modified value after said first system device receives said initial value; and in response to said determining, send to said first system device a message updating said specified parameter with said modified value. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A subnet controller, comprising:
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a physical layer interface configured to couple to a data bus; and a local controller configured to; receive messages via said data bus from a first and a second system device; determine from said received messages that an initial value of a specified dependent parameter supplied to said first system device by said second system device has been changed to a modified value after said first system device receives said initial value; and send to said first system device, in response to said determining, a message via said data bus updating said specified parameter with said modified value. - View Dependent Claims (18, 19, 20)
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Specification