P4. Extending BACnet for Lighting Control and Interfacing Building Systems with Utilities > Approach

Objectives:

• To develop enhancements to ASHRAE Standard 135 (BACnet) to support lighting control services.
  
• To develop enhancements to the BACnet standard to support communications between a building and the utility.

Approach:

• Establish a liaison relationship between ASHRAE SSPC 135 and key representatives of the lighting control industry, as well as utility industry. Working groups would be created to explore how the BACnet standard should be amended to accommodate lighting controls and utility/building control interactions. The target was to identify data exchanges that would most likely be commercially viable in by 2005.

• The goals for the working groups were:

  • Prepare one or more BACnet addenda proposals for lighting control.

  • Propose a mechanism to integrate BACnet systems with utility meters conforming to ANSI C12. Prepare a written proposed BACnet addendum addressing utility/building control interactions.

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