IntroductionTopicsWhat is Fieldbus?Comparison with existing 4-20mA installationsTypical field networkFOUNDATIONTM fieldbus in the Pharmaceutical industryWhen should Fieldbus be considered?Why use Foundation Fieldbus?Design, installation and commissioningOperation and maintenance Economic benefitsTechnical benefits

How is fieldbus different from 4-20mA?In 4-20mA circuits, the power supply, field device and input card are connected in series. In a Fieldbus system, the power supply, field devices and input card are connected in parallel.Input card

Safe areaTypical Fieldbus installationRedundant, isolated Fieldbus power conditionerField wiring hub with spur short-circuit protectionFOUNDATION Fieldbus DevicesFIELDCONTROL ROOMFieldbus control system (DCS)

Why use FOUNDATION fieldbusTM?Integrated digital architectureFuture proofSensors can be field upgraded with new featuresEconomic savingsDifferent incentives at each stage of a facility life cycle:Capital/ConstructionCommissioningOperations, maintenanceReduced infrastructure

Re-using Installed CablesJ-Box

Termination countField8242051648215Marshalling done in Junction Box with Fieldbus so Marsh Cab is optionalTotals:75 Analog34 Fieldbus4 pr4 pr4 pr1 pr1 pr1 pr

Engineering - Network LoadingNumber of devices per network segment15-20 mA per transmitter20-25 mA per valveSegment LengthDefined by Fieldbus standardfunction of number of devicesSegment topologyVoltage Calculations9 volt minimum at field devicedesign for 12 voltsBus BandwidthBalance cycle time against number of devicesFunction of host control systemVirtual Communication ResourcesRequired for communication between devices and host

Measurement accuracyIS InterfaceI/O cardPV = 392.8mb12.83mAPV = 393.1mb12.87mAIS InterfaceH1 I/O cardPV = 392.8mbPV = 392.8mbPV = 392.8mbField JB + marshallingField JB + marshalling12.86mAPV = 392.8mbPV = 392.8mbLeakage + noiseConversion errorConversion error4-20mAFieldbus

Diagnostics save wasted maintenance63% of instrument maintenance labour results in no action taken: waste of resources35%28%20%6%6%4%Shell Global Solutions

Fieldbus Project CostsEstimated Project SavingsMaterials and Field DevicesSome increaseInstallation LabourSavings up to 50% Commissioning:Significant savings up to 60%Overall Capital Savings of 2530%However savings will only be realized if the project is planned as a fieldbus project.

Foundation System ArchitectureScheduled DeterminismHighly Reliable PerformanceAutomatic AddressingPlug and PlayFunctional CommunicationPeer to Peer More PowerfulPublisher/Subscriber Higher PerformanceAlarms and EventsTime Stamped, Auditable Records Firmware DownloadReduced Risk of ObsolescenceRigorous Testing Host & Device

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