BACnet Fundamentals 101

Roy KolasaBACnet International, Education Co-Chair

Honeywell International, Open System Integration Market Manager

SESSION NO.: XX.XX TUESDAY, MARCH 15, 2011 ROOM NO.: 3XX

BACnet Fundamentals• What is BACnet?• Why BACnet?• BACnet Overview• Resources for BACnet Education

Building Automation Control Network (BACnet)

The BACnet Community

BACnet Standard Development

• Clarifications• Corrections• Extensions

BACnet Community Development

• Education• Testing• Promotion

plus regional BACnet Interest Groups developing in the Middle East and Asia

BACnet Standard• Enables effective

communication among intelligent building devices and systems

Partial BACnet International member listing, not all BACnet companies represented

BACnet Testing Laboratories• Established under direction and continued supervision of

BACnet International

• Independent testing of products for conformance to the standard

• Open to all manufacturers

• Public listing of tested products

• BTL “Mark” on tested products

Among the many initiatives undertaken by BACnet International are interoperability workshops or “plugfests.”At last Fall’s workshop, more than 35 companies took part in a 3-day event of validating product interoperability –Basic & Advanced Functionality

BTL Sponsored – One-on-One & Roundtable testingCustomer & Supplier sponsored – ensure compatibility

BACnet is Comprehensive• System-wide

– Building level controllers– Unitary controllers (VAV, RTU …)– Component interfaces (chillers, air-handlers, etc)

• Multi-level– Backbone Ethernet TCP/IP– Subnet over RS-485

• Cross-functional interfaces– HVAC– Lighting– Access control– Security – Fire/safety

Protocol Implementation Conformance Statement (PICS)Data Link Layer

Point-to-PointMS/TP (Preferred for Mixed Vendor configurations)Arcnet, LonEthernet & IP (Must define)

BACnet Interoperability Building Blocks (BIBBs)Data sharing. Alarm and event management. Scheduling. Trending. Device management

Standard Device ProfilesBACnet operator workstation. BACnet building controller. BACnet advanced application controller (B-AAC). BACnet application-specific controller (B-ASC). BACnet smart actuator. BACnet smart sensor

BACnet Technology

Open System Standard Functionality

Open System Functionality

Open System Standard Functionality with BACnet Client – Operator Workstation

Client Open System Functionality & Support

Lessons LearnedBACnet Specifications & Enforcement to ensure compliant systems & devicesIntegrated and coordinated control sequencesFacility Manager & End-User Input into requirements (Alarms, Graphics, Reports, Trending) Consultant and Master System Integrator (MSI) knowledgeable of existing systems & current standardsIntegrators & Installers need to be trainedOpen communication protocols enable system integration & subsystem interoperability

Recommended BACnet Education

X X X BI Web Site – Education Tab: FAQ, Resources, Webinars, Links

X X Fee Based Workshops by ASHRAE & Independent ConsultantsX BTL Plugfest, Interoperability Test Session

X BI Guide Specification – Specifying BACnet Educational SessionX X X BACnet Educational Tracks – Facility Decisions, AHR, NFMT

X BTL Working GroupsX X SSPC 135 Corresponding Member

X X X BACnet.org Web Site – Free Tutorials & White papers

End-User

Consultant/Specifier

Manufacturer/Programmer

BACnet Made Simple

Times are changingCollaborative standards = evolving solutions

Systems installationSmarter controls systems = new installation opportunities

Can I afford a multi-vendor BACnet system?

Traditional SystemsThe tradition multi-vendor system

Field engineeredHighly customized

Home Entertainment

Traditional Systems

Building Management System

PowerMetering

Lighting SecurityHVAC Controls

Common Commands achieved with multiple protocol translators (PTs)• Multiple standards• Multiple programming techniques

PT PT PT PT

PT PT PT

Architecting a system:• Start with a blank slate

– Field engineered system– Installed by controls specialists

• Field provided – User software installation– Controller programs – Trends, alarms, graphics, etc– System interaction features– Energy management features

Highly engineered system = highly skilled labor

Traditional Systems

Integrated Systems

The integrated multi-vendor system

Common methods & toolsCommon interface techniques

Broader usage

Home Entertainment

PowerMetering

Lighting SecurityHVAC Controls

Building Management System

Common Commands achieved with one common protocol translator (PT)• Single device support of multiple standards• Common programming & tools

PT

PT

Integrated Systems

Integrated Systems

Architecting a system:• Starts with integrated features

– Factory engineered systems– Installed by controls knowledgeable

• Controls integrated – User software– Controller programs – Trends, alarms, graphics, etc– System interaction features– Energy management features

Integrated system = “less” skilled labor

Evolving Solutions

What’s being changed?The job startup process is changing

- Reduced labor and field required expertise• Improved controller discovery• Improved programming and commissioning• Factory integrated controllers• Easily assembled customer user interfaces

Integrated Systems = Effective multi-vendor BACnet solutions

Thank You

– Additional Questions

Visit: www.BACnetInternational.org

Roy KolasaBACnet Education CommitteeHoneywell International, Inc.Office: 816-505-3568E-Mail: Roy.Kolasa@Honeywell.com