Emerson Micro Motion 9739 MVD

Integratethemeterwiththecontrolsystem
Example:Forexample,ifFlowSwitchSetpoint=100g/secandHysteresis=5%,andtheowratedrops
below95g/sec,thediscreteoutputwillturnON.ItwillstayONuntiltheowraterisesabove
105g/sec.AtthispointitturnsOFFandwillremainOFFuntiltheowratedropsbelow95g/sec.
7.3.2ConfigureDiscreteOutputPolarity
DisplayNotavailable
ProLinkII
ProLink→Conguration→DiscreteOutput→DO1Polarity
FieldCommunicatorCongure→ManualSetup→Inputs/Outputs→DiscreteOutput→DOPolarity
Discreteoutputshavetwostates:ON(active)andOFF(inactive).Twodifferentvoltagelevelsareused
torepresentthesestates.DiscreteOutputPolaritycontrolswhichvoltagelevelrepresentswhichstate.
Procedure
SetDiscreteOutputPolarityasdesired.
ThedefaultsettingisActiveHigh.
OptionsforDiscreteOutputPolarity
OptionsforDiscreteOutputPolarityareshowninTable7-9.
Table7-9OptionsforDiscreteOutputPolarity
PolarityDiscreteoutputpowersupplyDescription
Internal
•Whenasserted(conditiontiedtoDO
istrue),thecircuitprovidesapull-up
to15V.
•Whennotasserted(conditiontiedto
DOisfalse),thecircuitprovides0V.
ActiveHigh
External
•Whenasserted(conditiontiedtoDOis
true),thecircuitprovidesapull-uptoa
site-specicvoltage,maximum30V.
•Whennotasserted(conditiontiedto
DOisfalse),thecircuitprovides0V.
Internal
•Whenasserted(conditiontiedtoDO
istrue),thecircuitprovides0V.
•Whennotasserted(conditiontiedto
DOisfalse),thecircuitprovidesa
pull-upto15V .
ActiveLow
External
•Whenasserted(conditiontiedtoDO
istrue),thecircuitprovides0V.
•Whennotasserted(conditiontiedto
DOisfalse),thecircuitprovidesa
pull-uptoasite-specicvoltage,toa
maximumof30V.
132MicroMotion9739MVDTransmitters