Transcript LONWORKS® Overview

Open Systems for Building Control
©2003 Echelon
Agenda
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Introduction
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The Value of Open Systems
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Open Systems Defined
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LONWORKS® & BACnet – A Perspective
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Specifying Open Systems
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Summary
Introduction
Device Networks
©2003 Echelon
Imagine a world where everything is smart
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where everything is connected
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All Kinds of Everyday Devices
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White goods
Heaters and air
conditioners
Lights
Pumps and motors
Electricity meters
Security systems
Train brakes
Gates and garage doors
Conveyor belts
Medical alarms
Window shades
Elevators
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That Interoperate to Lower Cost, Add Value,
Increase Comfort
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Completion of drying cycle
flashes lamp inside home
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Time of day pricing change
changes defrost cycle
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Motion alarm triggers lamp
and generates remote alarm
message
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Away mode of thermostat
changes hot water
temperature to save energy
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Activation of TV lowers room
lights
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The Value of Open
Systems
©2003 Echelon
Market Drivers
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Owners are dissatisfied with the costs of proprietary
systems
– Sole-source maintenance contracts
– Other operational expenses associated with energy
consumption and moves/adds/changes dictate a need to
introduce more efficient and cost-effective systems
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Market Drivers
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Economic climate dictates focus on productivity
– Efficiency demands better value, faster innovation, smarter
investment
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Homeland Security post 9/11 demands Vigilance
– Want to know “everything” going on inside “every” building
– Insecurity drives desire for integrated Enterprise systems
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Rapidly changing technology enables disruptive changes in
the building automation landscape
– The Internet, Web services, ubiquitous communication
technologies create expectation of real time information –
“everywhere”, “all the time”
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Demand for Open Systems
– Some Specs are now requiring it
– Market and Competition is growing
Industry Response
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Focus placed on developing standards that define
open systems
– The leading standards are associated with BACnet and
LONWORKS Systems
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Industry Response
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All major players deliver products or systems that
conform to one or more established open system
standard
– Many continue to invest and update proprietary product lines
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Traditional players provide integrated systems (open
and proprietary) and web-based access
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Significant advances made in security equipment and
integrated systems
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Tech-savvy non-traditional players are entering the
market
Open Systems Promise
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Owners are attracted to the “Promise” of Open Systems
– Better Value for the Entire Building Life Cycle
– More and better choices
– Faster Innovation
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Open Systems Defined
©2003 Echelon
Open Systems Defined
 Open
building systems are created using the
products and systems from multiple vendors
that, as a system, offer greater flexibility, easier
management, higher levels of scalability, and
lower life cycle costs
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Open Systems
A Control Systems Evolution
Master/slave
Distributed systems
Stand-alone controllers
Networks
Closed, single-vendor
Open, multi-vendor
Centralized
Home-run Wired
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Tiered Islands of
Proprietary Sub-systems
Flat, open,
multi-vender
Open Systems Architecture
A Better Building Control Model
Building Management Applications
Open BAS
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G/W/E meters
Elevators
Security Components
Lighting Components
HVAC Components
PC’s/TV’s/VCR’s
Network Operating System
Open Systems Create Opportunity by …
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Providing a standard system architecture
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Allowing a comprehensive solution from Device to
Enterprise Integration
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Creating a common tool platform across multiple
manufacturers products
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Simplifying Adds/Moves/Changes as well as Monitoring,
Control and Visualization
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Open Systems are
– The basis for Innovation, Differentiation, and Competition
– An opportunity for specifiers, integrators and end-users
LONWORKS & BACnet
A Comparison
©2003 Echelon
Comparing BACnet and LONWORKS
Key areas to examine
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System Architecture
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System and Device Characteristics
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Conformance Testing and Certification
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Product Selection
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Network Management
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Diagnostic Tools
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Market Presence
Historical Comparison
LONWORKS
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1988 – Released by the Echelon
Corporation
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1994 – LonMark® Organization
formed
1987 – ASHRAE committee
formed
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1995 – BACnet1995 Released
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1995 – 1st certified product
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1997 – LNS 1.0 released
2001 – BACnet2001 Released
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2002 – BTL begins product testing
2002 – 1st tested product
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BACnet
1998 –
100th
certified product
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1999 – ANSI/EIA standard
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1999 – 200th certified product
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2001 – 300th certified product
2002 - XML Work Group
established
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2002 – Address space increased
through ANSI
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2003 – Becomes ISO Standard
16484-5
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2002 – 400th device certified
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2003 – 32 tested devices
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2003 – 500th device certified
(estimated)
System Architecture
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Description
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Impact on Openness
– LONWORKS provides for a flat architecture
– BACnet provides a tiered architecture
– LONWORKS flat peer-to-peer networks enable data exchange
directly between devices without the need for gateways or custom
software
– BACnet tiered networks are designed around gateways or custom
software to link sub-systems and components/subsystems from
different vendors
– Linking sub-systems creates “islands of automation”
– Flat architectures require more training, but have lower long-term
costs
– Integration of different subsystems requires more engineering
– Upgrades cost more due to need for gateways and/or custom
software
BACnet’s Tiered Architecture
Source: http://www.trane.com/commercial/equipment/bacnet01.asp#specify
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LONWORKS Flat Architecture
Operator Interface
IP/Ethernet LAN
IP Router
Device Network
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System and Device Characteristics
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Description
– LONWORKS (LONMARK Association) enables different manufacturers
to produce products that have identical functional characteristics
(both data interface and actions taken on shared data)
– BACnet allows manufacturers choose unique implementation of
specific functions
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Impact on Openness
– Specifiers, integrators and owners must understand that there are
degrees to openness
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Low Range: Can’t substitute devices from other vendors – Vendor Lock
High Range: Substitute and extend with any vendor’s products
– Addition of new equipment requires involvement from original
integrator and manufacturer to understand how specific low level
functions were actually implemented in each controller
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Conformance Testing and Certification
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Description
– Certified LONMARK devices are assured to provide
specified functions
– Tested BACnet devices are identified to have one or more
non-specific characteristics
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Impact on Openness
– Design and integration of BACnet and LONWORKS
devices can be expensive
– Compliance testing makes life easier for manufacturers
but harder for owners
– Certification makes life harder for manufacturers but
better for end-users
Product Selection
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Description
– LONMARK Association has certified 470 devices (as of
Aug. 2003) www.lonmark.org
– BACnet has tested 32 devices (as of Aug. 2003)
www.btl.org
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Impact on Openness
– There are lots of choices but they reflect a top-down .vs.
bottom up approach
– Limited competition results in higher prices; few sources for
product; few sources for design and integration
– Limited product selection may mean that the type of
function/product desired is not available
Network Management and Diagnostic Tools
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Description
– LONWORKS Network Management (design, commission,
installation) and Diagnostic Tools available from manufacturers
and independent vendors that leverage a standard database
– BACnet Network Management and Diagnostic Tools only
available from manufacturers
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Impact on Openness
– Multiple “proprietary” tools required to integrate and diagnose
multi-vendor
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Opportunity to remain “locked in” for upgrades
– Diagnoses and troubleshooting network issues require
“proprietary” tools provided by the same manufacturer that
supplied the system/devices – no vendor independence
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Market Presence
LONWORKS1
Products
Devices
(Neuron-based)
Quantities
18 million delivered3
Developers
LNS Plug-Ins
Thousands worldwide
Over 225 listed
LonMark Participation
Members
Certified Devices
Companies with Device Listings
Task Groups
LonMark Functional Profiles
Statistics
Over 300 worldwide
Over 470
Over 75 companies
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BACnet2
Survey Topics
Installations
Countries
Gateways
Devices by Network Type
- Ethernet
- ARCnet
- MS/TP
- PTP
Workstations
Large Controllers
Unitary Controllers
BACnet Participation
Vendor ID 1
BMA Members
 Corporate
 Individual
 Affiliate
BACnet Working Groups
BTL Tested Devices
Companies with BTL Product Certification
Quantities
19,054
82
2,410
11,970
95,567
248,500
1,549
15,807
53,391
299,600
Statistics
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¹ Data from Echelon website and LonMark
Interoperability Association as of mid-2003
3 As
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of July 2002
² Data from BACnet Manufacturers Association
2000 survey and BTL website (Aug. 2003)
Specifying Open
Understand & Help Define
a Customer’s Needs
©2003 Echelon
Specifying Open
Understand & Help Define a Customer’s Needs
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Do you need a whole-building approach to systems
integration?
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Is it important to be able to run the system from an
application, like energy management or a performance
contract?
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What about the future? XML? SOAP? IP?
Specifying Open
Understand & Help Define a Customer’s Needs
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Is centralized control & sequencing required?
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How important is it to be able to replace a device with
one from another manufacturer at a later date?
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I want to master my own destiny. Can I get all the
necessary documentation, configuration information,
configuration tools, programs, drivers, and other
software or licensing from my suppliers?
Specifying Open
Understand & Help Define a Customer’s Needs
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How many times have you been locked in?
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Do you want to be able to walk away?
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Do I need multiple front ends? Can I switch?
Get Informed
©2003 Echelon
LONWORKS Open System Specifications
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Reference material available:
– Echelon OSA Website : http://osa.echelon.com
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Open System Specification Framework and Design Guide
– http://osa.echelon.com/Program/PDFs/guidelines/OpenSpecFramew
ork.pdf
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LONWORKS Open System Specifications
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Reference material available:
– LonMark Website:
http://www.lonmark.org/products/guides.htm
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LonMark Building Automation System Master Specification
LONWORKS Open System Specifications
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Reference material available:
– Army Corps of Engineers
BACnet Open System Specifications
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Reference material available:
– Allerton Website:
http://www.alerton.com/Products/BACtalk/gs-bacnet.asp
BACnet Open System Specifications
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Reference material available:
– Trane Website:
http://www.trane.com/commercial/equipment/bacnet01.as
p#specify
Summary
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Market is going open
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There is a range to Openness
– We have a responsibility to
educate the end-users and
ourselves
– Need to commit time and
become the expert
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Open Systems are an OPPORTUNITY to expand
your business
Thank You!
©2003 Echelon