Transcript New System Overview - CABA - Continental Automated

Open System Benefits
Why It’s the Best Choice?
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Open Systems Offer Features/Benefits
End Users Want
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Seamless interoperability of system level control applications
Incorporation of industry standards
Investment protection to eliminate system obsolescence
Easy system expansions without locking in to a single vendor
Ability to select best in class new technology for the application
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Changing Roles
 End users are more active in defining system capabilities
 Engineers specify what end users want, not what manufacturers offer
 Engineers must increase focus on controls supplier capabilities, not
just product specifications
 Open systems offer many options:
 Control system communication protocols
 Systems integration capabilities
 System access options
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Open Systems Standards
 Open systems are used in every day life
 Home wiring – common wiring, plugs and voltages
 Light bulbs – common bases and lumen ratings
 Vehicle fuel – common octane grades and distribution
 They all incorporate a systemized set of standards
 Commonly accepted data criteria
 Widely understood information format
 Easily obtained from many manufacturers
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Open Systems Communications Protocols
 Open communication protocol standards allow products from
different manufacturers to work together
 Common business world open standards
 Computer Industry - Windows® Based PC, LINUX
 PC Communication - Ethernet
 Internet communication – http://www.
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Internet Standards & Communication Era
 Internet standards (XML / Web Services) are the future. These
include:
 Physical - Ethernet, TCP/IP
 Human readable - HTML, JAVA, Active X
 Machine readable - XML, SOAP, SNMP, SMTP, .NET, J2EE,
SQL
 Web pages for user interface
 IT data standards for open communications between devices
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Why Use Open System HVAC Controls
 End users are not locked into a proprietary control system
 End users have a wide choice of controllers and devices from
many manufacturers
 End users drive the system requirements:
 Integrate building control systems into a single interface
 Simplify operation of complex building controls
 Desire for easy access to complex control system data
 Interpret control data for system optimization and cost savings
 Access multi-building sites from the Internet
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Open HVAC Controls Standards
 HVAC Industry Standards enable communication between various
vendors products
 Most specified
 BACnet
 LonMark
 Other interoperable protocols highly used
 ModBus
 IEB
 BACnet and LonTalk are great solutions - but neither was designed
for the web and are not readily integrated with business systems
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New communication technology
Transport Layer
LONtalk
Physical Layer
FTT10
Application Layer
LONmark
Strong standard to avoid gateways
Ethernet
TCP/IP
ISDN PSTN
Modularity to use best suitable
RS232
RS485
wire
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oBIX
XML
HTTP
Management
level network
Danger
management
Management level
BacNet/ Lonworks/ModBus
Automation
level network
Automation level
Field
controllers
Field Net
Wireless
Field
Divises
Field level
network
Field level
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oBIX (Ethernet / TCP/IP/XML / HTTP)
Intranet
Network
based
controller
LonTalk
Controller
LonTalk
Controller
LonTalk
Controller
Other Protocols
Room
Controller
LonTalk
BACnet
Room
Controller
Other
XML based
system
Network
based
controller
Controller
Controller
Enterprise
Application
Servers