Integration of Lighting Controls and Building Management Systems

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Integration of Lighting Controls and Building
Management Systems
2007

• Wednesday May 9, 1030am
• Jody Good, LC, FIES, IALD, LEED-AP
• Spectrum Engineers

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Building Management Systems

• Often we have to interface with BMS Building
  Management Systems.
• Here is a primer of the terms and technology used
  in this business.

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Possible Interface Requirements

• Bac NET / Lon Works / BMS
• Interface- Input, output, status feedback,
  Bi-directional, Serial Data
• EIA 232- EIA/TIA Standard, 50 ft. limitation
• EIA 485- EIA/ TIA IEEE Standard, 4,000 ft,
  limitation, 2 or 4 wire, 32 taps
• Dry Contacts
• Audio/Video Controls, (AMX, Crestron)
• Direct Access- i.e. Lutron
• Interface

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Building Management Systems

• BMS Language
• Points
• AI Analog Input
• AO Analog Output
• BI or DI Binary / Digital Input
• BO or DO Binary / Digital Output

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Building Management Systems

• Analog Input can be variable voltage, current, or
  resistance signal.
• Analog Output can be variable voltage or current.

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Building Management Systems

• Binary or Digital I or O think
• dry contact.
• Dimming ballast on a BMS required 2 points for
  output
• 1 BI for switching the power on / off
• 1 AO to provide the 1-10 volts
• Limited Feedback or Status Polling

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Building Management Systems

• These are generated by a circuit on the serial
  signal node or gateway.
• Manufacturer specific hardware and software in a
  control system, to access BMS addressing and
  address to control properties of each node.

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Building Management Systems
BacNet on Ethernet or Ethernet
Router/Gateway
BacNet Node
BacNet Node
DDC Controller
DDC Controller
Monitored and Controlled Load Devices
DDC Controller
BacNet or LonWorks
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Building Management Systems
Router/Gateway
DDC Controller
Monitored and Controlled Load Devices
DDC Controller
LonWorks
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Building Management Systems
BacNet on Ethernet or Ethernet
BacNet Node
BacNet Node
Router/Gateway
DDC Controller
Interface
BacNet or LonWorks
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Building Management Systems
Networks LonWorks Proprietary, incremental
license fee per device, EIA
485 2 conductor, half duplex. Mostly more
expensive, but can be
competitive. BacNet- Open standard, sponsored by
ASHRAE., RS485 or Ethernet. Speed is
lt 10 system cycles per second. There are
others, (ie N2, CBus, Modbus,) But these 2 are
the majority of the systems,
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Audio Video Systems

• Platforms
• Dry Contacts
• Standard Serial Link
• Proprietary Serial Link

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Audio Video Systems

• Platforms
• Dry Contacts-
• Rather Universal
• Pulses to Trigger Dimmer System
• Most of the time Dimmer System has Controls
  arranged for preset recall.
• Can operate the other way

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Audio Video Systems

• Platforms
• Dry Contacts-
• Voltage and wiring need to be coordinated,
  otherwise fairly foolproof.

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Audio Video Systems
Proprietary Network
Remote Stations, Photocels, Etc.
Interface
RS-232 or Similar Serial Link
A/V System
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Audio Video Systems
Open Network
Remote Stations, Photocels, Etc.
Interface
RS-232 or Similar Serial Link
A/V System
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• SPECIFYING INTERFACES
• On Plans
• On One-line Diagram
• In Specs

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SPECIFYING INTERFACES
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SPECIFYING INTERFACES
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SPECIFYING INTERFACES
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SPECIFYING INTERFACES
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• Type
• Dry Contact
• Serial Input
• Serial Input / Output
• Compatibility- BMS, EIA 485, other

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REVIEW Interface Requirements

• Bac NET / Lon Works / BMS
• Interface- Input, output, status feedback,
  Bi-directional, Serial Data
• EIA 232- EIA/TIA Standard, 50 ft. limitation
• EIA 485- EIA/ TIA IEEE Standard, 4,000 ft,
  limitation, 2 or 4 wire, 32 taps
• Dry Contacts Flexible but Limited Capability,
  little or no Feedback
• Audio/Video Controls, (AMX, Crestron)
• Direct Access- i.e. Lutron
• Interface

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Questions?
www.spectrum-engineers.com/ downloadslinks.html
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Please remember to complete the course
evaluations.

• Thank You!
• We hope you enjoy Lightfair International