BUILDING AUTOMATION SYSTEM FIELD DEVICES AND ADAPTERS
First Claim
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1. A field device for communicating with a building automation system field controller via a field cable, comprising:
- an integrated circuit comprising communications circuitry and sensing circuitry, the integrated circuit configured to convert a first signal from the sensing circuitry to a second signal compatible with the communications circuitry; and
an interface configured to communicatively couple the field cable to the communications circuitry.
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Abstract
A field device for use in a communicating with a building automation system field controller via a field cable is disclosed. The field device includes an integrated circuit. The integrated circuit includes communications circuitry and sensing circuitry. The integrated circuit is configured to convert a first signal from the sensing circuitry to a second signal compatible with the communications circuitry. The interface is configured to communicatively couple the field cable to the communications circuitry.
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Citations
21 Claims
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1. A field device for communicating with a building automation system field controller via a field cable, comprising:
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an integrated circuit comprising communications circuitry and sensing circuitry, the integrated circuit configured to convert a first signal from the sensing circuitry to a second signal compatible with the communications circuitry; and an interface configured to communicatively couple the field cable to the communications circuitry. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A sensing system for use with a building automation system field controller, comprising:
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a device comprising an integrated circuit comprising communications circuitry and sensing circuitry, the integrated circuit configured to convert a first signal from the sensing circuitry to a second signal compatible with the communications circuitry; and an adapter physically separate from the device, the device and the adapter configured for interconnection via a field cable; wherein the adapter is configured to bridge communications between the building automation system field controller and the device. - View Dependent Claims (8, 9, 10, 11)
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12. A communications adapter for facilitating communication in a building automation system between a supervisory controller and a plurality of field devices, the adapter comprising:
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a first interface for communicating with the supervisory controller according to a first communications protocol; a second interface for communicating with a plurality of field devices via a wired bus according to a second communications protocol; and a microcontroller for converting a first signal received at the second interface and according to the second communications protocol to a second signal for providing to the first interface; wherein the second interface and the second communications protocol are compatible with a System Management Bus (SMBus) specification. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A temperature sensor system for use with a building automation system field controller, the temperature sensor system comprising:
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a first adapter configured to convert a second communications protocol to a first communications protocol, the first communications protocol compatible with the building automation system field controller, the second communications protocol according to a specification, the first adapter comprising a microcontroller suitable for serving as a master device according to the specification; and a first set of temperature sensors configured to be powered by the adapter and connected via a first cable to the first adapter. - View Dependent Claims (19, 20, 21)
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Specification