BenDorseyBACnetInternationalMarketingCommittee

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•  WhatisBACnet?•  TheBusinessCase/ValueProposition•  WorkingwithBACnet•  TheFutureofBACnet•  SuccessStory(iftimepermits)

WhatisBACnet?

•  Anopenstandard•  Adatacommunicationsprotocol•  Anacronym:BuildingAutomationandControl

Networks•  Ameansofautomatingbuildingsand

integratingbuildingsystems•  AregisteredtrademarkofASHRAE!

®

BACnetisadatacommunicationsprotocolandanagreed-uponsetofrulesforcreatinginteroperablenetworksofbuildingsystems.

•  HVACequipmentandterminalunits

•  Lightingsystems•  Accesssystems•  SecurityandCCTV•  Lifesafety•  Renewableenergysources•  Windowsandshading

•  Parkingfacilities•  Irrigation•  Smokecontroldoors&

dampers•  Massnotification•  Elevators•  Emergencypower

•  Aworkinggroup(standardprojectcommittee)oftheAmericanSocietyofHeating,RefrigeratingandAir-ConditioningEngineers(ASHRAE).

•  Beganworkin1987undertremendousopposition(somesaiditwouldNEVERbedone).

•  Publishedasastandardin1995.•  SupportedandmaintainedbyASHRAEStandingStandard

ProjectCommittee•  (SSPC)135.

•  Bydesign,thestandardisundercontinualrevision.

•  It’salsoanANSIandISOstandard

Objects•  Thestandardusesanobject-orientedmodeltorepresent

information.•  Definesmorethan50standardobjects•  Manufacturerscancreatenon-standardobjects

ProductmanufacturerscombineobjectstocreateDevices

Services•  Standardalsobuiltonanapplicationservicesmodel•  ThinkofservicesasthemessagesthatBACnetdevices

sendtoeachother.•  Someservicesreadandwritepropertiesofoneor

moreobjects.•  Otherservicessendnotificationof–  alarmsorspecialevents.•  Stillotherservicesreadandwritefiles.

Services•  Again,implementerscanpickandchoosewhichservicesto

incorporateintoDevicefunctionality•  Groupedinto

•  Objectaccess•  Alarmandeventmanagement•  Scheduling•  Trending•  Files•  Deviceandnetworkmanagement

Devices(orDeviceProfiles)•  DefinedbyObjectsandServicessupported

•  OperatorWorkstations(B-AWS,B-OWS,B-OD)

•  Controllers(B-BC,B-AAC,B-ASC,B-SS,B-SA)

•  Miscellaneous(B-RTR,B-GW,B-BBMD,B-GEN)

Inessence,thestandarddefinesthemessagesthatdevicesexchangeandhowtheyaredelivered.

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message transport

BACnet/IP

MS/TP

COST

SPEED

•  Itcanbeimplementedonlow-costnetworks(dedicatedorshared)andisextremelyflexibleinLANtypes.

•  BACnetdevicesarecost-competitivewithlong-standingproprietarydevices.

•  Thestandardspecificallyprovidesforscheduling,trending,andalarming.

•  Itiseasilyscalableatalllevelsforanysizejob.

•  Itiscompletelyopenandnotdependentonspecifichardware.

•  Itprovidesforautomaticdevicediscovery(savinginstallationcosts).

•  BACnetisnot“plug-n-play.”

•  BACnetdoesnotreplacetheneedforDDCorcontrollogicanddoesnotattempttostandardizehowdevicesareprogrammed.

•  BACnetdoesnotreplacetheneedforspecifyingwhatauserwantsorneeds.(Itsimplyprovidessomestandardizedtoolstohelpenablethecreationandspecificationofsystemsthat

•  caninteroperate.)

TheBusinessCaseandValueProposition

•  Asdigitalcommunicationsemergedinthecontrolsspace,company-specific(orproprietary)languagesweredevelopedbymanufacturers.

•  Theyworkedandworkedwell.Theyjustdidn’tplaywellwithothers.

Considerthehiringchallengeoftryingtofindqualifiedoperatorsandtechnicians.

•  ThosefamiliarwithBrandXmaybeinshortsupply.•  MeanwhilethebestcandidatesmaybefamiliarwithBrandY

andBrandZbuthavenoexperienceonX.•  Andwhentheexternalserviceprovideristheonlygamein

town,Icanbeheldhostage.•  HowlongwillItoleratethat?

•  Aproprietarysystemjoinsmeatthehiptoasingleproductmanufacturerand,perhaps,asinglemanufacturer’srepresentative.

•  Ifmycontrolstrategyneedstochangeinlightofbuildingdynamics,willIreceivethenecessaryresponsiveness?

•  Today’sautomationsystemshavetoplaywellintheentireenterprise.

•  Lessandlessaretheystandaloneentitiescontrollingyourmechanicalsystems,forexample.

•  Integrationofsystemsisbecomingmorenecessaryduetoincreasedefficiencyandtheneedtohaveaccuratedataacrosstheenterprise.

•  Frequently,enterprisesystemsorenergymanagementadd-ons,suchasdashboards,willwanttopulldatafromtheBAS.

•  Whenthecommunicationprotocolisproprietary,thesharingofsuchdatabecomesproblematic.

“Aftersevenyears,BASbecomeverydifficulttosupportandwithproprietarybasedcontrolnetworks,canbemadetobefunctionallyobsoletebybeingincompatiblewiththenextgenerationproductlines.”RaedSalem,DirectorofMEPEngineeringforChicagoAEfirm,LarsonandDarbyGroup

ChoiceofProviders:•  ASHRAEissuesvendoridentificationnumbersto

companieschoosingtodevelopBACnetproducts.

•  ThetotalnumberofvendorIDssurpassed800bythebeginningof2015;nowexceeds950!

•  Thatmeanstherearemorethan950businessesouttheredevelopingproductsthatcaninteroperate.

Device-to-devicecompatibility•  Speakthesamelanguage

•  Havethesameinterests

•  Gotothesameplaces

•  Havematchingsweaters

•  WhileBACnet,asastandard,isundercontinuousdevelopment,itsverynatureisoneofbackwardscompatibility.

•  Acontrollerofageneration1willcontinuetoperformitsassignedfunctionsevenascontrollersofgeneration2areaddedtothenetworkorassoftwareofgeneration2assumesnetworkmanagement.

•  Thesameistrueforgeneration1ofBrandXandgeneration2ofBrandY.

RaedSalemcontinues:

“Thisissueisdependentonwhethertheexistingsystemisbasedonanopencontrolnetworkstandardorisavendorproprietarycontrolnetwork.Aworstcasescenariowouldbefortheproprietarycontrolnetworkrequiringcompletereplacement(100percent)andabestcasescenariowouldbenosystemreplacementwiththeopenstandardsbasedcontrolnetwork(becauseofexistingsystemcompatibilitywiththenextgenerationBAScomponents).”

BACnetisanintegrationengine.•  Systemsareofteninterrelated

•  Considerbuildingaccessandoccupancy-basedlightingandHVAC

•  Synergiescanberealizedsuchasthelearningofoneuserinterfaceversusseveral

•  HVACequipmentandterminalunits

•  Lightingsystems•  Accesssystems•  SecurityandCCTV•  Lifesafety•  Renewableenergysources•  Windowsandshading

•  Parkingfacilities•  Irrigation•  Smokecontroldoors&

dampers•  Massnotification•  Elevators•  Emergencypower

WorkingwithBACnet

Contractors/ServiceProviders•  “TheControlsContractorshallsupplyandinstalla

completeBuildingAutomationSystem(BAS)asrequiredtoaccomplish...”

•  “BuildingAutomationSystem(BAS)shallconsistofnativeBACnet...”

•  Thestandarddoesnotstipulatehowdevicesaretobeconfiguredorprogrammed.

•  Thatmeansthateachmanufacturercanhaveitsownprogrammingtool.

•  Canstillbebroughtunderasingleoperatorworkstationoruserinterface.

•  Mappingpointsfromonebrandofdevicestoanothercanbetedious.

•  BACnetstandardprovidesformanufacturerstoimplementtheirownspecialcapabilitiesthroughtheuseofproprietaryobjects&properties.

•  Somebetterthanothersatusingstandarddatatypestopromoteinteroperability.

•  Sometimes,somuchproprietaryactivitygoingonthattrueinteroperabilityis

•  thwarted.

•  Majorcontrolsmanufacturersprovidetrainingtocontractingpartners.

•  Especiallyimportantfortechnicians.

•  And,forin-housefacilityprofessionals,considertheextenttowhichyouwanttobetrained:

•  Changingschedules•  Modifyingoraddinggraphics•  Etc.

•  www.bacnetinstitute.org•  Free,butmustregister•  Courses,articles,presentations,and

acommunity(forum)

•  Community:(a)AskandExpertand(b)TechnicalForum

•  Devicelogs,filecaptures,historyreports•  Trendsandlogsprovideinformationfor

furtheroptimizationofthesystemaswellasfordocumentationrequirementsforbuildingcertification.

•  BACnetnetworkbrowsers

•  Communicationwirecaptures

TheFutureofBACnet

•  Hardwareandsoftwareformonitoringandcontrollingvariousbuildingsystems.

•  Thelow-hangingfruitofbuildingintelligence.

IoBT,theInternetofBuildingThings•  DevicetoenterpriseconnectivitythroughIPand

wireless•  Sensors,sensors,sensors•  Meters,meters,meters•  Mobileapps

Bringingtogetherautomatedsystems.•  Typicallythroughacommonuserinterface•  Alsothroughsupervisorycontroldevices

IoBT,theInternetofBuildingThings•  Data,Data,Data•  Moremeasurement&verification•  Cyberthreatsandcyberprotection•  AnewgenerationofIT-savvysystemintegrators

Ameansofvisualizingandinterpretingallofthatdata

It’strendy!“Theuseofdataanalyticsorpredictiveanalyticsallowsorganisationstoefficientlyextract,cleanandstandardisedatafrommultipleoperationalandlegacysystems,aswellasdatainthepublicdomain,todeliverrealinsightstobusinessstakeholders.”

Deloitte

•  Startswithattractivegraphicalrepresentationofbuildingsystemsandoperatingparameters.

•  Movesontodashboards.

•  Culminatesinintelligentanalysis;portendingoptionsorrecommendingcoursesofaction.

IoBT,theInternetofBuildingThings•  Trulyactionableanalytics•  Customizedandcustomizableviews•  Thecloud•  Strangebedfellows

SSPC135WorkingGroupsdrivecontinuousdevelopmentofthestandard

•  WorkingGroupsincludeInformationTechnology,NetworkSecurity,andSmartGrid,andDataModeling,amongothers

ProductManufacturers&Developers•  Justvisitthebuildingautomationand

controlsshowcasehereattheshow.