July 2004
News Release

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BMA Association - ASHRAE Committee SSPC-135 Submits XML/Web Services Addendum to BACnet Standard for Public Review

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Nashville, TN. - An XML/Web Services Addendum to ASHRAE Standard 135-2004, BACnet® was submitted for public review by ASHRAE committee, SSPC-135 as Annex M (BACnet/WS). Web Services are a collection of technologies that allow different applications from different sources to communicate with each other without time-consuming custom coding. Because all communication is in XML, Web services are not tied to any particular operating system or programming language.

The services described in Annex M provides a universal standard for data sharing, alarming and trending of building data using XML and SOAP; providing a high level abstraction of building automation and control network data for use with other systems such as utilities, weather, and financial systems. Since this addendum includes normalized data types, it can also be used to bridge the gap between different building protocols including BACnet, MODBUS, LON® or even proprietary protocols.

As part of the BACnet Standard, this addendum permits BACnet to be used at every level of the information hierarchy from a sensor or controller to a workstation or server and now other enterprise systems using XML.

Already several manufacturers have started implementing the XML/web services per this public review addendum, and compliant building control solutions should be available within the next year after the addendum is approved.

ASHRAE, founded in 1894, is an international organization of 55,000 persons. Its sole objective is to advance through research, standards writing, publishing and continuing education the arts and sciences of heating, ventilation, air conditioning and refrigeration to serve the evolving needs of the public. In 1995 ASHRAE published the BACnet standard for Building Automation Controls. BACnet is designed for use by all building systems including lighting, security, fire, and HVAC systems and is recognized as an ANSI standard and ISO (16484-5) standard.

About BMA
The BACnet Manufacturers Association (BMA) is an organization that encourages the successful use of BACnet in building automation and control systems through interoperability testing educational programs, and promotional activities. The BACnet Manufacturers Association complements the work of other BACnet-related groups whose charters limit their commercial activities. BACnet Manufacturers Association members include companies involved in the design, manufacturing installation, commissioning, and maintenance of control equipment that uses BACnet for communication, as well as other interested persons. For more information on the BMA, visit http://www.bacnetassociation.org/.


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