Emerson MICRO MOTION 2700 Owner's manual

P/NMMI-20015778,Rev.AA
September2009
MicroMotion®Model2700Transmitters
withIntrinsicallySafeOutputs
CongurationandUseManualSupplement
2700***D
Conguration Operation Maintenance

MicroMotioncustomerservice
LocationTelephoneNumber
U.S.A.800-522-MASS(800-522-6277)(tollfree)
CanadaandLatinAmerica+1303-527-5200(U.S.A.)
Japan35769-6803 Asia
Allotherlocations+656777-8211(Singapore)
U.K.08702401978(toll-free) Europe
Allotherlocations+31(0)318495555(TheNetherlands)
CustomersoutsidetheU.S.A.canalsosendanemailtoow[email protected].
Copyrightsandtrademarks
©2009MicroMotion,Inc.Allrightsreserved.TheMicroMotionandEmersonlogosaretrademarks
andservicemarksofEmersonElectricCo.MicroMotion,ELITE,MVD,ProLink,MVDDirectConnect,and
PlantWebaremarksofoneoftheEmersonProcessManagementfamilyofcompanies.Allothertrademarks
arepropertyoftheirrespectiveowners.

Contents
Chapter1Conguredeviceoptionsandpreferences..............................................................1
1.1CongureDisplayVariablesandDisplayPrecision...........................................1
Chapter2Integratethemeterwiththecontrolsystem............................................................3
2.1CongureChannelB......................................................................................3
2.2CongurethemAoutputs...............................................................................4
2.3Congurethefrequencyoutput.......................................................................10
2.4Congurethediscreteoutput..........................................................................16
2.5Conguredigitalcommunications...................................................................20
2.6Congureevents...........................................................................................25
Chapter3SetuptheWeights&Measuresapplication............................................................29
3.1Locale-speciccommissioning.......................................................................29
Chapter4Operatethetransmitter............................................................................................31
4.1Viewprocessdata.........................................................................................31
AppendixADisplaycodesandabbreviations.............................................................................33
A.1Displaycodesforprocessvariables................................................................33
A.2Codesandabbreviationsusedindisplaymenus..............................................34
CongurationandUseManualSupplementi

iiMicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Aboutthissupplement
Thissupplementisdesignedforusewiththefollowingmanual:MicroMotionSeries1000and
Series2000Transmitters:CongurationandUseManual.Itreplacessectionsofthemanualwith
sectionsthatarenewormodiedforv6.0oftheModel2700transmitterwithintrinsicallysafe
outputs.Seethefollowingtableforsectionreplacementguidelines.
Sectionreplacementguidelines
SectioninMicroMotionSeries1000andSeries2000
Transmitters:CongurationandUseManualReplacewiththefollowingsectionfromthissupplement
6.3.2ChannelBSection2.1
6.5ConguringthemAoutput(s)Section2.2
6.6ConguringthefrequencyoutputSection2.3
6.7ConguringthediscreteoutputSection2.4
7.4.1ViewingprocessvariableswiththedisplaySection4.1.1
8.11ConguringeventsSection2.6
8.14.6Conguringthedisplayvariablesanddisplay
precision
Section1.1
8.15ConguringdigitalcommunicationsSection2.5
11.2Locale-speciccommissioningSection3.1
TableH-1DisplaycodesusedforprocessvariablesSectionA.1
TableH-2Displaycodesusedinoff-linemenuSectionA.2
Communicationstoolsandversions
Informationinthissupplementassumesthatyouareusingoneofthefollowingtocongureyour
transmitter:
▪Thetransmitterdisplay
▪ProLinkIIv2.9
▪375FieldCommunicatorwiththefollowingdevicedescription:2000IMasso,Devv6,DDv1
IfyouareusinganearlierversionofProLinkIIortheCommunicatordevicedescription,some
featuresdescribedinthissupplementmaynotbeavailable.
CongurationandUseManualSupplementiii

ivMicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Chapter1
Conguredeviceoptionsandpreferences
Topicscoveredinthischapter
♦CongureDisplayVariablesandDisplayPrecision
1.1CongureDisplayVariablesandDisplayPrecision
DisplayNotavailable
ProLinkIIProLink→Conguration→Display
Communicator5,7,2
DetailedSetup→DisplaySetup→DisplayVariables
5,7,3
DetailedSetup→DisplaySetup→DisplayPrecision
Thedisplaycanscrollthroughupto15processvariablesinanyorder.Youcancongurethe
processvariablestobedisplayedandtheorderinwhichtheywillappear.Youcanrepeat
variables,andyoucanleaveslotsempty.
YoucanalsocongureDisplayPrecisionforeachprocessvariable.DisplayPrecisioncontrolsthe
numberofdigitstotherightofthedecimalplacethatareshownonthedisplaywhentheprocess
variableisselectedasadisplayvariable.DisplayPrecisioncanbesettoanyvaluefrom0to
5.Thelowertheprecision,thelargeraprocesschangemustbeinordertobereectedinthe
displayedvalue.DisplayPrecisiondoesnotaffectthevalueoftheprocessvariablereportedvia
othermethodsorusedincalculations.
Restrictions
▪YoucannotsetDisplayVariable1toNone.DisplayVariable1mustalwaysbesettoa
processvariable.
▪IfyouhavexedDisplayVariable1totheprimarymAoutput,youcannotchangethesettingof
DisplayVariable1usingthismethod.T ochangethesettingofDisplayVariable1,youmust
changethecongurationofmAOutputProcessVariablefortheprimarymAoutput.
Note
Ifyouhaveconguredavolumeprocessvariableasadisplayvariable,andyousubsequently
changethesettingofVolumeFlowType,thedisplayvariableisautomaticallychangedtothe
equivalentprocessvariable.Forexample,ifDisplayVariable2wassettoVolumeFlowRate,itwill
bechangedtoGasStandardVolumeFlowRate.
CongurationandUseManualSupplement1

Conguredeviceoptionsandpreferences
♦Example:Displayvariableconguration
DisplayvariableProcessvariableassignment
DisplayVariable1Massow
DisplayVariable2Masstotalizer
DisplayVariable3Volumeow
DisplayVariable4Volumetotalizer
DisplayVariable5Density
DisplayVariable6Temperature
DisplayVariable7Externalpressure
DisplayVariable8Massow
DisplayVariable9None
DisplayVariable10None
DisplayVariable11None
DisplayVariable12None
DisplayVariable13None
DisplayVariable14None
DisplayVariable15None
1.1.1CongureDisplayVariable1fromthedisplaymenu
DisplayOFF-LINEMAINT→OFF-LINECONFG→DSPLY→VAR1
ProLinkIINotavailable
CommunicatorNotavailable
Ifdesired,youcancongureDisplayVariable1fromthedisplaymenubyxingittotheprocess
variableassignedtotheprimarymAoutput,whichisalsotheHARTPrimaryVariable.Ifyoudo
this,DisplayVariable1willalwaysbetheprocessvariableassignedtotheprimarymAoutput.
Thisistheonlywaytocongureadisplayvariablefromthedisplaymenus.
IfDisplayVariable1isxedtotheprimarymAoutput,theonlywaytosetDisplayVariable1to
adifferentprocessvariableistochangethemAoutputassignment.IfyoudonotxDisplay
Variable1totheprimarymAoutput,youmustuseacommunicationstoolsuchasProLinkIIorthe
CommunicatortochangeDisplayVariable1.
EvenifDisplayVariable1isxed,youcanstillsetitsprecision.Tosetitsprecision,youmust
useacommunicationstool.
Note
ThisoptionappliesonlytoDisplayVariable1.Tochangeanyotherdisplayvariable,youstill
needacommunicationstool.
2MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Chapter2
Integratethemeterwiththecontrolsystem
Topicscoveredinthischapter
♦CongureChannelB
♦CongurethemAoutputs
♦Congurethefrequencyoutput
♦Congurethediscreteoutput
♦Conguredigitalcommunications
♦Congureevents
2.1CongureChannelB
DisplayOFF-LINEMAINT→OFF-LINECONFG→IO→CHB→SETFO/SETDO
ProLinkIIProLink→Conguration→Frequency/DiscreteOutput
Communicator5,3,3,1
DetailedSetup→CongOutputs→FO/DOCong→Freq/DOSetup
TheI/Oterminalpairsonthetransmitterarecalled“channels”andareidentiedasChannelA,
ChannelB,andChannelC.YoucancongureChannelBtooperateasafrequencyoutputora
discreteoutput.Thechannelcongurationmustmatchthewiring.
Alwaysverifytheoutputcongurationafterchangingchannelconguration.Whenthe
congurationofachannelischanged,thechannel’sbehaviorwillbecontrolledbythe
congurationthatisstoredfortheselectedoutputtype,whichmayormaynotbeappropriate
fortheprocess.Toavoidcausingprocesserror:
▪Congurethechannelsbeforeconguringtheoutputs.
▪Whenchangingchannelconguration,besurethatallcontrolloopsaffectedbythis
channelareundermanualcontrol.
▪Beforereturningthelooptoautomaticcontrol,ensurethattheoutputiscorrectly
conguredforyourprocess.
2.1.1OptionsforChannelB
Table2-1OptionsforChannelB
ChannelOperation
Frequencyoutput(FO)ChannelB
Discreteoutput(DO)
CongurationandUseManualSupplement3

Integratethemeterwiththecontrolsystem
2.2CongurethemAoutputs
DisplayOFF-LINEMAINT→OFF-LINECONFG→IO→CHA
OFF-LINEMAINT→OFF-LINECONFG→IO→CHC
ProLinkIIProLink→Conguration→AnalogOutput
Communicator5,3,1
DetailedSetup→CongOutputs→AnalogOutput1
5,3,2
DetailedSetup→CongOutputs→AnalogOutput2
ThemAoutputisusedtoreportaprocessvariable.ThemAoutputparameterscontrolhowthe
processvariableisreported.YourtransmitterhastwomAoutputs:ChannelAandChannelC.
ThemAoutputparametersinclude:
▪mAOutputProcessVariable
▪LowerRangeValue(LRV)andUpperRangeValue(URV)
▪AOCutoff
▪AddedDamping
▪AOFaultActionandAOFaultValue
Prerequisites
IfyouplantocongureanmAoutputtoreportvolumeow,ensurethatyouhavesetVolumeFlow
Typeasdesired:LiquidorGasStandardVolume.
IfyouplantocongureanmAoutputtoreportaconcentrationmeasurementprocessvariable,
ensurethattheconcentrationmeasurementapplicationisconguredsothatthedesiredvariableis
available.
Postrequisites
Important
WheneveryouchangeanmAoutputparameter,verifyallothermAoutputparametersbefore
returningtheowmetertoservice.Insomesituations,thetransmitterautomaticallyloadsasetof
storedvalues,andthesevaluesmaynotbeappropriateforyourapplication.
2.2.1ConguremAOutputProcessVariable
DisplayOFF-LINEMAINT→OFF-LINECONFG→IO→CHA→AO1SRC
OFF-LINEMAINT→OFF-LINECONFG→IO→CHC→AO2SRC
ProLinkIIProLink→Conguration→AnalogOutput→PVIs
ProLink→Conguration→AnalogOutput→SVIs
Communicator5,3,1,1
DetailedSetup→CongOutputs→AnalogOutput1→PVIs
5,3,2,1
DetailedSetup→CongOutputs→AnalogOutput2→SVIs
mAOutputProcessVariablecontrolsthevariablethatisreportedoverthemAoutput.
4MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Integratethemeterwiththecontrolsystem
Prerequisites
IfyouareusingtheHARTvariables,beawarethatchangingthecongurationofmAOutput
ProcessVariablewillchangethecongurationoftheHARTPrimaryVariable(PV)and/orthe
HARTSecondaryVariable(SV).
OptionsformAOutputProcessVariable
Table2-2OptionsformAOutputProcessVariable
ProcessvariableDisplaycodeProLinkIIcodeCommunicatorcode
MassowrateMFLOWMassFlowRateMasso
VolumeowrateVFLOWVolumeFlowRateVolo
Gasstandardvolume
owrate(1)
GSVFGasStdVolFlowRateGasvolo
TemperatureTEMPTempTemp
DensityDENSDensityDens
Externalpressure(1)EXTPExternalPressureExternalpres
Externaltemperature(1)EXTTExternalT emperatureExternaltemp
Temperature-corrected
density(2)
TCDENAPI:T empCorrectedDensityTCDens
Temperature-corrected
(standard)volumeow
rate(2)
TCVOLAPI:T empCorrectedVolume
Flow
TCVol
DrivegainDGAINDriveGainDrivsignl
Averagecorrected
density(2)(3)
AVEDAPI:AvgDensityTCAvgDens
Averagetemperature(2)(3 )AVETAPI:AvgT emperatureTCAvgTemp
Densityatreference
temperature(4)
RDENSCM:Density@ReferenceEDDensatRef
Specicgravity(4)SGUCM:Density(FixedSGunits)EDDens(SGU)
Standardvolumeow
rate(4)
STDVCM:StdVolFlowRateEDStdVolo
Netmassowrate(4)NETMCM:NetMassFlowRateEDNetMasso
Netvolumeowrate(4)NETVCM:NetVolFlowRateEDNetVolo
Concentration(4)CONCCM:ConcentrationEDConcentration
Baume(4)BAUMECM:Density(FixedBaume
Units)
EDDens(Baume)
(1)Requirestransmittersoftwarev5.0orlater.
(2)Availableonlyifthepetroleummeasurementapplicationisenabledonyourtransmitter.
(3)Requirestransmittersoftwarev3.3orlater.CanbeassignedonlyviathedisplayorProLinkIIv1.2orlater.
(4)Availableonlyiftheconcentrationmeasurementapplicationisenabledonyourtransmitter.
CongurationandUseManualSupplement5

Integratethemeterwiththecontrolsystem
2.2.2CongureLowerRangeValue(LRV)andUpperRangeValue(URV)
DisplayOFF-LINEMAINT→OFF-LINECONFG→CHA→AO14mA
OFF-LINEMAINT→OFF-LINECONFG→CHA→AO120mA
OFF-LINEMAINT→OFF-LINECONFG→IO→CHC→AO24MA
OFF-LINEMAINT→OFF-LINECONFG→IO→CHC→AO220MA
ProLinkIIProLink→Conguration→AnalogOutput→PrimaryOutput→LowerRangeValue
ProLink→Conguration→AnalogOutput→PrimaryOutput→UpperRangeValue
ProLink→Conguration→AnalogOutput→SecondaryOutput→LowerRangeValue
ProLink→Conguration→AnalogOutput→SecondaryOutput→UpperRangeValue
Communicator5,3,1,2
DetailedSetup→CongOutputs→AnalogOutput1→RangeValues
5,3,2,2
DetailedSetup→CongOutputs→AnalogOutput2→RangeValues
TheLowerRangeValue(LRV)andUpperRangeValue(URV)areusedtoscalethemAoutput,
i.e.,todenetherelationshipbetweenmAOutputProcessVariableandthemAoutputlevel.
ThemAoutputusesarangeof4–20mAtorepresentmAOutputProcessVariable:
▪LRVspeciesthevalueofmAOutputProcessVariabletoberepresentedbyanoutputof4mA.
▪URVspeciesthevalueofmAOutputProcessVariabletoberepresentedbyanoutputof
20mA.
▪BetweenLRVandURV,themAoutputislinearwiththeprocessvariable.
▪IftheprocessvariabledropsbelowLRVorrisesaboveURV,thetransmitterpostsanoutput
saturationalarm.
EntervaluesforLRVandURVinthemeasurementunitsthatareconguredformAOutput
ProcessVariable.
Notes
▪YoucansetURVbelowLRV.Forexample,youcansetURVto50andLRVto100.
▪Fortransmittersoftwarev5.0andlater,ifyouchangeLRVandURVfromfactorydefault
values,andyoulaterchangemAOutputProcessVariable,LRVandURVwillnotberesetto
thedefaultvalues.Forexample,ifyouconguremAOutputProcessVariableasmassow
andchangetheLRVandURVformassow,thenyouconguremAOutputProcessVariable
asdensity,andnallyyouchangemAOutputProcessVariablebacktomassow,LRVand
URVformassowareresettotheconguredvalues.Inearlierversionsofthetransmitter
software,LRVandURVwereresettofactorydefaultvalues.
DefaultvaluesforLowerRangeValue(LRV)andUpperRangeValue(URV)
EachoptionformAOutputProcessVariablehasitsownLRVandURV.Ifyouchangethe
congurationofmAOutputProcessVariable,thecorrespondingLRVandURVareloadedand
used.
DefaultLRVandURVsettingsarelistedinT able2-3.
Table2-3DefaultvaluesforLowerRangeValue(LRV)andUpperRangeValue(URV)
ProcessvariableLRVURV
Allmassowvariables−200.000g/sec200.000g/sec
Allliquidvolumeowvariables−0.200l/sec0.200l/sec
6MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Integratethemeterwiththecontrolsystem
Table2-3DefaultvaluesforLowerRangeValue(LRV)andUpperRangeValue(URV)continued
ProcessvariableLRVURV
Alldensityvariables0.000g/cm310.000g/cm3
Alltemperaturevariables–240.000°C450.000°C
Drivegain0.00%100.00%
Gasstandardvolumeow−423.78SCFM423.78SCFM
Externaltemperature−240.000°C450.000°C
Externalpressure0.000bar100.000bar
Concentration0%100%
DensityBaume010
Specicgravity010
2.2.3CongureAOCutoff
DisplayNotavailable
ProLinkIIProLink→Conguration→AnalogOutput→PrimaryOutput→AOCutoff
ProLink→Conguration→AnalogOutput→SecondaryOutput→AOCutoff
Communicator5,3,1,3
DetailedSetup→CongOutputs→AnalogOutput1→PVAOCutoff
5,3,2,3
DetailedSetup→CongOutputs→AnalogOutput2→SVAOCutoff
AOCutoff(AnalogOutputCutoff)speciesthelowestmassowrate,volumeowrate,orGas
StandardVolumeowratethatwillbereportedthroughthemAoutput.Anyowratesbelow
theAOCutoffwillbereportedas0.
Restriction
AOCutoffisappliedonlyifmAOutputProcessVariableissettoMassFlowRate,VolumeFlow
Rate,orGasStandardVolumeFlowRate.IfmAOutputProcessVariableissettoadifferent
processvariable,AOCutoffisnotcongurable,andthetransmitterdoesnotimplementtheAO
cutofffunction.
Tip
Formostapplications,thedefaultvalueofAOCutoffshouldbeused.ContactMicroMotion
customerservicebeforechangingAOCutoff.
Cutoffinteraction
WhenmAOutputProcessVariableissettoaowvariable(massow,volumeow,orgas
standardvolumeow),AOCutoffinteractswithMassFlowCutoff,VolumeFlowCutoff,orGas
StandardVolumeFlowCutoff.Thetransmitterputsthecutoffintoeffectatthehighestowrateat
whichacutoffisapplicable.
CongurationandUseManualSupplement7

Integratethemeterwiththecontrolsystem
♦Example:Cutoffinteraction
Conguration:
▪mAOutputProcessVariable=MassFlowRate
▪FrequencyOutputProcessVariable=MassFlowRate
▪AOCutoff=10g/s
▪MassFlowCutoff=15g/s
Result:Ifthemassowratedropsbelow15g/s,alloutputsrepresentingmassowwillreport
zeroow.
♦Example:Cutoffinteraction
Conguration:
▪mAOutputProcessVariable=MassFlowRate
▪FrequencyOutputProcessVariable=MassFlowRate
▪AOCutoff=15g/s
▪MassFlowCutoff=10g/s
Result:
▪Ifthemassowratedropsbelow15g/sbutnotbelow10g/s:
▪ThemAoutputwillreportzeroow.
▪Thefrequencyoutputwillreporttheactualowrate.
▪Ifthemassowratedropsbelow10g/s,bothoutputswillreportzeroow.
2.2.4CongureAddedDamping
DisplayNotavailable
ProLinkIIProLink→Conguration→AnalogOutput→PrimaryOutput→AOAddedDamp
ProLink→Conguration→AnalogOutput→SecondaryOutput→AOAddedDamp
Communicator5,3,1,4
DetailedSetup→CongOutputs→AnalogOutput1→PVAOAddedDamping
5,3,2,4
DetailedSetup→CongOutputs→AnalogOutput2→SVAOAddedDamping
AddedDampingcontrolstheamountofdampingthatwillbeappliedtothemAoutput.Itaffects
thereportingofmAOutputProcessVariablethroughthemAoutputonly.Itdoesnotaffectthe
reportingofthatprocessvariableviaanyothermethod(e.g.,thefrequencyoutputordigital
communications),orthevalueoftheprocessvariableusedincalculations.
Note
AddedDampingisnotappliedifthemAoutputisxed(forexample,duringlooptesting)orifthe
mAoutputisreportingafault.AddedDampingisappliedwhilesensorsimulationisactive.
OptionsforAddedDamping
WhenyousetthevalueforAddedDamping,thetransmitterautomaticallyroundsthevaluedown
tothenearestvalidvalue.ValidvaluesarelistedinT able2-4.
8MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Integratethemeterwiththecontrolsystem
Note
AddedDampingvaluesareaffectedbythesettingofUpdateRateand100HzVariable.
Table2-4ValidvaluesforAddedDamping
UpdateRatesettingProcessvariable
Updaterate
ineffectValidvaluesforAddedDamping
NormalAll20Hz0.0,0.1,0.3,0.75,1.6,3.3,6.5,13.5,27.5,
55.0,110,220,440
100Hzvariable(ifassigned
tothemAoutput)
100Hz0.0,0.04,0.12,0.30,0.64,1.32,2.6,5.4,
11.0,22.0,44,88,176,350
100Hzvariable(ifnot
assignedtothemAoutput)
6.25Hz0.0,0.32,0.96,2.40,5.12,10.56,20.8,43.2,
88.0,176.0,352
Special
Allotherprocessvariables6.25Hz0.0,0.32,0.96,2.40,5.12,10.56,20.8,43.2,
88.0,176.0,352
Interactionofdampingparameters
WhenmAOutputProcessVariableissettoaowvariable,density,ortemperature,Added
DampinginteractswithFlowDamping,DensityDamping,orT emperatureDamping.Ifmultiple
dampingparametersareapplicable,theeffectofdampingtheprocessvariableiscalculatedrst,
andtheaddeddampingcalculationisappliedtotheresultofthatcalculation.
♦Example:Dampinginteraction
Conguration:
▪FlowDamping=1sec
▪mAOutputProcessVariable=MassFlowRate
▪AddedDamping=2sec
Result:AchangeinthemassowratewillbereectedinthemAoutputoveratimeperiodthat
isgreaterthan3seconds.Theexacttimeperiodiscalculatedbythetransmitteraccordingto
internalalgorithmswhicharenotcongurable.
2.2.5ConguremAOutputFaultActionandmAOutputFaultLevel
DisplayNotavailable
ProLinkIIProLink→Conguration→AnalogOutput→PrimaryOutput→AOFaultAction
ProLink→Conguration→AnalogOutput→PrimaryOutput→AOFaultLevel
ProLink→Conguration→AnalogOutput→SecondaryOutput→AOFaultAction
ProLink→Conguration→AnalogOutput→SecondaryOutput→AOFaultLevel
Communicator5,3,1,5
DetailedSetup→CongOutputs→AnalogOutput1→AO1FaultSetup
5,3,2,5
DetailedSetup→CongOutputs→AnalogOutput2→AO2FaultSetup
mAOutputFaultActioncontrolsthebehaviorofthemAoutputifthetransmitterencountersan
internalfaultcondition.
Note
IfLastMeasuredValueTimeoutissettoanon-zerovalue,thetransmitterwillnotimplement
thefaultactionuntilthetimeouthaselapsed.
CongurationandUseManualSupplement9

Integratethemeterwiththecontrolsystem
OptionsformAOutputFaultActionandmAOutputFaultLevel
Table2-5OptionsformAOutputFaultActionandmAOutputFaultLevel
ProLinkIIcode
Communicator
codemAOutputFaultLevelmAoutputbehavior
Upscale(5)Upscale(5)Default:22mA
Range:21–24mA
Goestotheconguredfaultlevel
Downscale
(default)(5)
Downscale
(default)(5)
Default:3.2mA
Range:3.2–3.6mA
Goestotheconguredfaultlevel
InternalZeroIntrnlZeroNotapplicableGoestothemAoutputlevelassociated
withaprocessvariablevalueof0
(zero),asdeterminedbyLowerRange
ValueandUpperRangeValuesettings
NoneNoneNotapplicableTracksdatafortheassignedprocess
variable;nofaultaction
IfyousetmAOutputFaultActionorFrequencyOutputFaultActiontoNone,besuretoset
DigitalCommunicationsFaultActiontoNone.Ifyoudonot,theoutputwillnotreportactual
processdata,andthismayresultinmeasurementerrororunintendedconsequencesfor
yourprocess.
IfyousetDigitalCommunicationsFaultActiontoNAN,youcannotsetmAOutputFault
ActionorFrequencyOutputFaultActiontoNone.Ifyoutrytodothis,thetransmitterwillnot
accepttheconguration.
2.3Congurethefrequencyoutput
DisplayOFF-LINEMAINT→OFF-LINECONFG→IO→CHB→SETFO
ProLinkIIProLink→Conguration→Frequency/DiscreteOutput
Communicator5,3,3
DetailedSetup→CongOutputs→FO/DOCong
Thefrequencyoutputisusedtoreportaprocessvariable.Thefrequencyoutputparameters
controlhowtheprocessvariableisreported.Yourtransmittermayhavezerooronefrequency
output:ChannelBcanbeconguredasafrequencyoutputoradiscreteoutput.
Thefrequencyoutputparametersinclude:
▪FrequencyOutputProcessVariable
▪FrequencyOutputScalingMethod
▪FrequencyOutputMaximumPulseWidth
▪FrequencyOutputPolarity
▪FrequencyOutputFaultActionandFrequencyOutputFaultValue
Postrequisites
Important
(5)IfyouselectUpscaleorDownscale,youmustalsocongureFaultLevel.
10MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Integratethemeterwiththecontrolsystem
Wheneveryouchangeafrequencyoutputparameter,verifyallotherfrequencyoutputparameters
beforereturningtheowmetertoservice.Insomesituations,thetransmitterautomaticallyloadsa
setofstoredvalues,andthesevaluesmaynotbeappropriateforyourapplication.
2.3.1CongureFrequencyOutputProcessVariable
DisplayOFF-LINEMAINT→OFF-LINECONFG→IO→CHB→SETFO→FOSRC
ProLinkIIProLink→Conguration→Frequency/DiscreteOutput→TertiaryVariable
Communicator5,3,3,2
DetailedSetup→CongOutputs→FO/DOCong→TVIs
FrequencyOutputProcessVariablecontrolsthevariablethatisreportedoverthefrequencyoutput.
Prerequisites
IfyouareusingtheHARTvariables,beawarethatchangingthecongurationofFrequencyOutput
ProcessVariablewillchangethecongurationoftheHARTTertiaryVariable(TV).
OptionsforFrequencyOutputProcessVariable
Table2-6OptionsforFrequencyOutputProcessVariable
ProcessvariableDisplaycodeProLinkIIcodeCommunicatorcode
MassowrateMFLOWMassFlowRateMasso
VolumeowrateVFLOWVolumeFlowRateVolo
Gasstandardvolumeowrate(6)GSVFGasStdVolFlowRateGasvolo
Temperature-corrected
(standard)volumeowrate
(7)
TCVOLAPI:T empCorrected
VolumeFlow
TCVol
Standardvolumeowrate(8)STDVCM:StdVolFlowRateEDStdVolo
Netmassowrate(8)NETMCM:NetMassFlowRateEDNetMasso
Netvolumeowrate(8)NETVCM:NetVolFlowRateEDNetVolo
2.3.2CongureFrequencyOutputScalingMethod
DisplayOFF-LINEMAINT→OFF-LINECONFG→IO→CHB→SETFO→FOSCALE
ProLinkIIProLink→Conguration→Frequency/DiscreteOutput→ScalingMethod
Communicator5,3,3,3
DetailedSetup→CongOutputs→FO/DOCong→FOScaleMethod
FrequencyOutputScalingMethoddenestherelationshipbetweenoutputpulseandowunits.
SetFrequencyOutputScalingMethodasrequiredbyyourfrequencyreceivingdevice.
(6)Requirestransmittersoftwarev5.0orlater.
(7)Availableonlyifthepetroleummeasurementapplicationisenabledonyourtransmitter.
(8)Availableonlyiftheconcentrationmeasurementapplicationisenabledonyourtransmitter.
CongurationandUseManualSupplement11

Integratethemeterwiththecontrolsystem
Procedure
1.Setthechanneltooperateasafrequencyoutput,ifyouhavenotalreadydoneso.
2.SetFrequencyOutputScalingMethod.
Frequency=FlowFrequencycalculatedfromowrate
Pulses/UnitAuser-speciednumberofpulsesrepresentsoneowunit
Units/PulseApulserepresentsauser-speciednumberofowunits
3.Setadditionalrequiredparameters.
▪IfyousetFrequencyOutputScalingMethodtoFrequency=Flow,setRateFactorand
FrequencyFactor.
▪IfyousetFrequencyOutputScalingMethodtoPulses/Unit,denethenumberofpulses
thatwillrepresentoneowunit.
▪IfyousetFrequencyOutputScalingMethodtoUnits/Pulse,denethenumberofunits
thateachpulsewillindicate.
Frequency=Flow
TheFrequency=Flowoptionisusedtocustomizethefrequencyoutputforyourapplicationwhen
youdonotknowappropriatevaluesforUnits/PulseorPulses/Unit.
IfyouselectFrequency=Flow,youmustprovidevaluesforRateFactorandFrequencyFactor:
RateFactorThemaximumowratethatyouwantthefrequencyoutputtoreport.
Abovethisrate,thetransmitterwillreportA110:Frequency
OutputSaturated.
FrequencyFactorAvaluecalculatedasfollows:
where:
TFactortoconvertselectedtimebaseto
seconds
NNumberofpulsesperowunit,as
conguredinthereceivingdevice
TheresultingFrequencyFactormustbewithintherangeofthefrequencyoutput(0to10,000Hz):
▪IfFrequencyFactorislessthan1Hz,recongurethereceivingdeviceforahigherpulses/unit
setting.
▪IfFrequencyFactorisgreaterthan10,000Hz,recongurethereceivingdeviceforalower
pulses/unitsetting.
Tip
IfFrequencyOutputScaleMethodissettoFrequency=Flow,andFrequencyOutputMaximum
PulseWidthissettoanon-zerovalue,MicroMotionrecommendssettingFrequencyFactorto
avaluelessthan200Hz.
12MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs

Integratethemeterwiththecontrolsystem
♦Example:CongureFrequency=Flow
Youwantthefrequencyoutputtoreportallowratesupto2000kg/min.
Thefrequencyreceivingdeviceisconguredfor10pulses/kg.
Solution:
Setparametersasfollows:
▪RateFactor:2000
▪FrequencyFactor:333.33
2.3.3CongureFrequencyOutputMaximumPulseWidth
DisplayNotavailable
ProLinkIIProLink→Conguration→Frequency/DiscreteOutput→FreqPulseWidth
Communicator5,3,3,5/6
DetailedSetup→CongOutputs→FO/DOCong→MaxPulseWidth
FrequencyOutputMaximumPulseWidthisusedtoensurethatthedurationoftheONsignalis
greatenoughforyourfrequencyreceivingdevicetodetect.
TheONsignalmaybethehighvoltageor0.0V,dependingonFrequencyOutputPolarity,as
showninT able2-7.
Table2-7InteractionofFrequencyOutputMaximumPulseWidthandFrequencyOutputPolarity
PolarityPulsewidth
ActiveHigh
ActiveLow
CongurationandUseManualSupplement13

Integratethemeterwiththecontrolsystem
Tips
▪Fortypicalapplications,thedefaultvalue(0)isappropriateforFrequencyOutputMaximum
PulseWidth.Thedefaultvalueproducesafrequencysignalwitha50%dutycycle.
High-frequencycounterssuchasfrequency-to-voltageconverters,frequency-to-current
converters,andMicroMotionperipheralsusuallyrequireadutycycleofapproximately50%.
▪ElectromechanicalcountersandPLCsthathavelow-scancycleratesgenerallyuseaninput
withaxednon-zerostatedurationandavaryingzerostateduration.Mostlow-frequency
countershaveaspeciedrequirementforFrequencyOutputMaximumPulseWidth.
FrequencyOutputMaximumPulseWidth
YoucansetFrequencyOutputMaximumPulseWidthto0,ortovaluesbetween0.5milliseconds
and277.5milliseconds.Theuser-enteredvalueisadjustedautomaticallytothenearestvalid
value.
▪IfyousetFrequencyOutputMaximumPulseWidthissetto0(thedefault),theoutputwill
havea50%dutycycle,independentoftheoutputfrequency.SeeFigure2-1.
Figure2-150%Dutycycle
▪IfyousetFrequencyOutputMaximumPulseWidthtoanon-zerovalue,thedutycycleis
controlledbythecrossoverfrequency.
Thecrossoverfrequencyiscalculatedasfollows:
▪Atfrequenciesbelowthecrossoverfrequency,thedutycycleisdeterminedbythepulse
widthandthefrequency.
▪Atfrequenciesabovethecrossoverfrequency,theoutputchangestoa50%dutycycle.
♦Example:FrequencyOutputMaximumPulseWidthwithspecicPLCrequirements
ThefrequencyreceivingdeviceisaPLCwithaspeciedpulsewidthrequirementof50
milliseconds.Thecrossoverfrequencyis10Hz.
Solution:SetFrequencyOutputMaximumPulseWidthto50miiseconds.
Result:
▪Forfrequencieslowerthan10Hz,thefrequencyoutputwillhavea50–millisecondONstate,
andtheOFFstatewillbeadjustedasrequired.
▪Forfrequencieshigherthan10Hz,thefrequencyoutputwillbeasquarewavewitha50%
dutycycle.
14MicroMotionModel2700TransmitterswithIntrinsicallySafeOutputs