Lon, BACnet, Proprietary? - HVAC Control Systems...
Transcript of Lon, BACnet, Proprietary? - HVAC Control Systems...
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Lon, BACnet, Proprietary?
David Witherspoon
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Agenda
• Introductions• LON• BACnet• Proprietary• WEBs• WEBs Security
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Introductions
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LON
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• LONWORKS- The overall technology including the microprocessor, the
protocol, and the entire network of devices, manufactured by the Echelon Corporation
Definitions
• LONTALK- The protocol used by LONWORKS products- Conforms to the OSI 7 layer protocol stack
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• Internet to WEBs Panels (JACE) can be used to create one network by connecting remote locations over IP channels
• LNS Server is not required for routing packets
• WEBSupervisor may be used to synchronize message delivery across wide area networks
Internet
Intranet 1 (IP)
Intranet 2 (IP)
WEBSupervisor
Devices in Raleigh
Devices in Wilmington
Devices in Charlotte
Devices in Greensboro
Internet / Intranet IP Backbone
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• LonMark Association- An independent association of manufacturers defining a
common set of guidelines for assurance of interoperability between different manufacturers of LonMark devices
LONMARK
• LonMark Committees- HVAC, Industrial, Network Tools, Lighting, Elevator,
System Integrators, Fire, Lighting, Utility
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• What is a profile?A committee approved network interface to an application
representing mandatory and optional network variables
LONMARK
• Why is it important?By using a profile you can guarantee the manufacturer
includes the mandatory network variables to enable interaction between devices
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LONMARK
• Without profiles you are dependent on matching network variable types
• Different manufacturers may use different variable types to describe the same type of data which makes integration difficult
• Example: two VFD manufacturers use two different variable types to define the drive speed. With profiles, this practice is eliminated
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• Verify LONMARK approval
LONMARK
- Easy to Specify
- LONMARK approval gives you a level of confidence that devices will communicate and interact properly
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BACnet
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Definition
• BACnet® is:- A Data Communication Protocol for
Building Automation and Control Networks
• Developed by ASHRAE- 8 Years to develop- Published in 1995
• Developed to Promote “Interoperability”
For more information about BACnet, see www.bacnet.org.
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What Is BACnet?
• It is a specification.• It applies to all building systems.• It provides a model for creating interoperable
building automation systems.• It defines objects that represent data and control
functions.
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What Is BACnet?
• It defines services used for requesting data and responding to those requests.
• Its multiple data-link layer definitions support flexible and cost-effective networks.
• It supports creation of large systems through internetworking.
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Communication Options
• BACnet IP• BACnet Ethernet (8802-3)• Master Slave/Token Passing (MSTP)• Point to Point (PTP)
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• Internet to WEBs Panels (JACE) can be used to create one network by connecting remote locations over IP channels
• BACnet Server is not required for routing packets
• WEBSupervisor may be used to synchronize message delivery across wide area networks
Internet
Intranet 1 (IP)
Intranet 2 (IP)
WEBSupervisor
Devices in Raleigh
Devices in Wilmington
Devices in Charlotte
Devices in Greensboro
Internet / Intranet IP Backbone
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How Does BACnet Work?
BACnet divides interoperability into three distinct areas and defines methods and standards for each.
• Defines rules for LANs and internetworks or Transport Systems.
• Data representation or Objects.• Data exchange methods or Services.
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Device Profiles
OWS
R BC BC
ASC
ASC
ASC
ASC
ASC
ASC
BC
S A
Operator Workstation
(B-OWS)
Building Control(B-BC)
Application Specific Controller (B-AAC or B-ASC)
Smart Sensor/Actuator (B-SS or B-SA)
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Proprietary
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• Typically simpler to program• Limited integration capability• At controller level, there is not a significant
difference between “Open” and Proprietary Systems – other than communication protocols.
• Systems have been on the market for years and proven their reliability.
• Limited contractor choices
Overview
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Plant Controllers
HoneywellC-BusDevices
Modem
XPC 500Card
C-Bus NetworkConnection via BNA
Internet/Intranet
Ethernet TCP/IP
RAS Remote Connection
Web Access via BrowserWork Stations
3rd PartyLon Devices
LonWorks BUS
HoneywellServer
NetworkInterfacePCLTA
Router
ModemModem Modem
Excel 50 Excel 500 Smart Excel 500
DistributedI/O Smart I/O
Operator Interface
CVAHU XL10
Zone Controllers
VAV XL10
Smart VAV XL10
FCU XL10
UV XL10
RIO XL10
Thermostat
Hydronic XL10
WirelessReceiver
WirelessWall Module
Other Open SystemBACnet Servers
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Protocol Summary
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US Market position
Proprietary68%
LonWorks6%
BACnet23%
(Source: Frost & Sullivan, North American Building Protocol Analysis, 2001)
Other2%
TCP/IP1%
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WEBs
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WEBs Vision
• Our Business is Building Software Used to Build Software – Our Tools are Used to Create End Applications that a User Experiences
• Niagara is a Foundation that Makes it Easier to Build Internet-Enabled Automation Products and Device-to-Enterprise Applications
• At its Core, Niagara is About Modeling – Modelingthe Data and Behavior of Devices and Systems
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Enterprise Architecture
Web Browsers
RegionalWeb Supervisor
RegionalWeb Supervisor
Enterprise WAN
MasterWeb Supervisor
WAN
WEB-600
Remote Offices
RegionalHQ
Regional HQ
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Typical Building Architecture
WEB-600
HVACLighting
Irrigation
Power
Equipment Health
Facility ManagerDashboard
LAN WAN
FireSecurity
IT
Router
Web Cam
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LonMark Devices
JACE
Ethernet LAN
HubWeb Browser
Pager or PDA
Router
BACnet Systems
ProprietaryControl System
Open Web Enabled Framework
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R2 or AX????
• R2 – Introduced in 1999• AX – Introduced in 2006
• When working with a customer who has an existing Niagara installation, you need to determine which platform is installed.
• There is an interface from R2 to AX called oBIX(Open Building Information Exchange).
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WEBs Security
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A Historical Perspective
• Integrated Automation and Security Systems- Were historically expensive- Weren’t applicable to small buildings- Required complex installation and programming- Didn’t integrate into third party systems- Required a PC for the user interface- Required extensive knowledge to use and maintain
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Honeywell WEBSAX Security
• Web enabled Access Control & Intrusion Detection- Designed and built on the NiagaraAX Framework- Real-time access control- Expands the WEBsAX system into advanced Building
AutomationSeamless Integration to HVAC, Lighting, Energy Management
- Utilizes Weigand protocol for peripheralsEnables usage of third party devices
- Two versions availableStand alone controllersPanelized versions with lockable panels
Accessible Via a Browser from Anywhere in the World
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Enterprise Security Architecture
EnterpriseSupervisorWeb Browser
EnergyHVACLighting
MODBUS® XML
Access Control – Multi-JACE Solution
IP Cameras
Analog Cameras
Dedicated Micros DVR
Local Area Network
Video Integration
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Combo Architecture
Local Area Network
Tridium’s Security Solution• No server PC required• No thick client software, access via browser• Integrated BAS• Security / HVAC from single controller• Enterprise integration via XML, oBIX
Web BrowserEnterprise Applications
XML, oBIX
Security / HVACJACE
Capacities- 16 readers and 64 I/O- 10,000 card holder records- 50,000 history records
EnergyHVAC
Lighting
MODBUS® XML
Reader Modules I/O Modules
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Security / HVAC Combo JACE
• Cost Effective Solution for Integrated Security / BAS- Small to medium sized facilities (< 100,000 sq ft)- Up to 16 card readers
• Utilize Security JACE 6 Platform- Access control provided through security application- BAS available through LON / BACnet / Modbus / etc.- BAS station development through Workbench tool
• Product Structure- Base controller with add-on driver option packs- Option packs include primary and secondary drivers
• Tridium to Provide Engineering Guidelines- Typical system capacities / station resource usage- Workbench guidelines of DOs and DONTs to protect existing
security application and overall JACE performance
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Combo JACE – Base Platform
• Combined JACE - Base Platform Capacities- Security JACE 6 hardware- 15 security modules- Max 16 card readers- Max 4 intrusion keypads- 10,000 personnel records- 50,000 history records- Drivers included: BACnet IP, FOX, and oBIX- Can add max 1 driver option pack to base platform
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Multi-Protocol Drivers
• Driver Option Pack 1 – BACnet MSTP Focused- BACnet MSTP: 60 devices, 2000 points- LON: 5 devices, 100 points- Modbus TCP: 5 devices, 100 points- Modbus RTU: 5 devices, 100 points- SNMP: 5 devices, 100 points
• Driver Option Pack 2 – LON Focused- LON: 60 devices, 2000 points- BACnet MSTP: 5 devices, 100 points- Modbus TCP: 5 devices, 100 points- Modbus RTU: 5 devices, 100 points- SNMP: 5 devices, 100 points
• Communication Option Cards Sold Separately
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Thank You