HART HIGHWAY ADDRESSABLE REMOTE TRANSDUCER

Presented ByName: Swagata Saha

Stream: E.C.E4th Year 8th Semester

Roll No: 08182003024Registration No: 081820110133

Year: 2012INSTITUTE OF SCIENCE &

TECHNOLOGY

HARTHIGHWAY ADDRESSABLE

REMOTE TRANSDUCER

ContentsWhat is HART?Working PrincipleDesign ObjectivesInstallationBenefitsAssumption & limitationFuture workConclusion

DefinitionHART stands for HighwayAddressable Remote Transducer.HART is the global standardfor sending and receiving digitalinformation across analogwires.HART is a bi-directionalcommunication protocol.

WORKING PRINCIPLE HART (Highway AddressableRemote Transducer) was developed byFisher Rosemount to retrofit 4-to-20mAcurrent loop transducers with digital

data communication. HART-protocol uses the principle offrequency modulation for the exchangedynamic at 1200 baud. HART uses low frequencies(1200Hz and 2200 Hz) to deal withpoor cabling, its rate is 1200 dB – butsufficient.

Design objectivesData acquisitioncomponentLab VIEW front panelcomponentData analysis componentE-mail componentData visualizationcomponent

D ata analysis com ponentExcel and Text F ile

E-m ail com ponent

D ata v isualization com ponent3 d im enional graphing

LabVIEW front panel com ponentGU I

D ata Acquisiton C om ponentH art C om m unications

Test station

installation

benefits HART technology can help us: Leverage the capabilities of a full set of intelligent device data for operationalimprovements. Gain early warnings to variances in device, product or process performance. Speed the troubleshooting time between the identification and resolution ofproblems. Continuously validate the integrity of loops and control/automation systemstrategies. Increase asset productivity and system availability. Increase Plant Availability Reduce Maintenance Costs Improve regulatory compliance

Assumption & limitation Maximum number ofsensors is twelve. Data precision is basedon auxiliary computer. Maximum of 600 datapoints per run. Accuracy to three decimalplaces. Will not perform statisticalAnalysis.

Future work Communication withmultiple HART devices. Further development of 3-D Modeling. Implementation of webbased server.

ConclusionEncountered Problems are; Software vendor backed out of

software agreement Software version incompatibility Poster printing Feature Creep Time zone differences Language barriers with tech support But in Future, Communication with multiple HART

devices. Further development of 3-D modeling. Implementation of web based server.

Summary:-Current problemError prone manual data collectionProposed solutionAccurate automated data collectionImplementation of solution

• HART device• Lab VIEW

THANK YOU

DEVELOPED BY:SWAGATA SAHAELECTRONICS &

COMMUNICATION ENGINEERING

4TH YEAR 8TH SEMESTERRoll no:08182003024