Emerson 644 manual Filtering, Process Alarms

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Rosemount 644

Reference Manual

00809-0400-4728, Rev AA June 2011

AI2 as Terminal Temperature

1.Put the AI Block into OOS mode.

a.Go to MODE_BLK.TARGET

b.Choose OOS (0x80)

2.Go to CHANNEL

a.Choose Body Temperature

3.Go to L_TYPE

a.Choose Direct

4.Go to XD_Scale

a.Choose UNITS_INDEX to be °C

5.Go to OUT_SCALE

a.Choose UNITS_INDEX to be °C

b.Set the 0 and 100 scale to be the same as the

SECONDARY_VALUE_RANGE

6.Put the AI Block back into Auto mode.

7.Follow Host Procedure Download Schedule into Block.

Filtering

The filtering feature changes the response time of the device to smooth variations in output readings caused by rapid changes in input. Adjust the filter time constant (in seconds) using the PV_FTIME parameter. Set the filter time constant to zero to disable the filter feature.

Process Alarms

Process Alarm detection is based on the OUT value. Configure the alarm limits of the following standard alarms:

•High (HI_LIM)

•High high (HI_HI_LIM)

•Low (LO_LIM)

•Low low (LO_LO_LIM)

In order to avoid alarm chattering when the variable is oscillating around the alarm limit, an alarm hysteresis in percent of the PV span can be set using the ALARM_HYS parameter. The priority of each alarm is set in the following parameters:

•HI_PRI

•HI_HI_PRI

•LO_PRI

•LO_LO_PRI

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Contents Reference Manual 00809-0400-4728, Rev AA JunePage Table of Contents Appendix B Specifications Reference DataAppendix a TOC-2Rosemount Temperature Transmitters Customer Central National Response Center InternationalPage Explosions could result in death or serious injury Safety MessagesSection Introduction Process leaks could result in death or serious injuryManual OverviewTransmitter Considerations Example 22 20 815 C 1500 F Oven Temperature250 C 482 F Oven Temperature 5 6 7 8 Extension Length AboveSection Installation Bench Calibration? Within Specifications? Refer to ConfigurationSimulate Sensor Input Mounting a 644H to a DIN Rail From draining into the transmitter housingMounting Rail asymmetricTypical European Installation InstallationHead Mount Transmitter with DIN Plate Style Sensor Typical North American Installation Head Mount Transmitter with Threaded SensorLCD Display Installation Installing the LCD DisplayWiring Power terminals does not drop below 9 VdcSensor Connections Thermocouple or Millivolt InputsSensor Input Approximate Basic Error Sensor Lead Wire Resistance Effect- RTD InputRTD or Ohm Inputs Pt100 2-wire RTD Error due to amb. temp. var. of ± 25 CGround the Transmitter Power SupplyFoundation fieldbus Installation Ungrounded Thermocouple, mV, and RTD/Ohm InputsGrounded Thermocouple Inputs Section Configuration Overview Safety MessagesModes General Block InformationDevice Description Node Address AutoLink Active Scheduler Block Installation Resource Transducer Analog Input OtherCapabilities Foundation Fieldbus Function BlocksUnicode FeaturesResource Block ReportsMaxnotify FeaturesselFailedalarms PlantWeb AlertsMaintalarms FailedmaskRecommended Actions for PlantWeb Alerts Advisory AlarmsRecommendedaction Analog Input AI Function Block Configure the AI blockSensor Transducer Block DampingLtype Pressure Channel Temperature ChannelXdscale and Outscale Configuration Examples Transducer BlockProcess Alarms FilteringAlarmtype OutdBLKTYPE#1 LCD Transducer BlockDisplayparamsel PARAMINDEX#1UNITSTYPE#1 Operation and MaintenanceOverview CUSTOMUNITS#1Troubleshooting Guides Troubleshooting guideProblems with communications flowchart Calpointlo + Calminspan Block Blockerr messages DiagnosticsRecall Factory Trim Sensor Transducer Block Xderr messagesDescription CalibrationerrSimulation Manual ModeStatus SimulateSymptom Possible Causes Recommended Actions Troubleshooting AI blockPower Up 00809-0400-4728, Rev AA June AI Blockerr Conditions10. Resource Block Block Errors8lists conditions reported in the Blockerr parameter Condition NameSymptom Possible Causes Recommended Action Self Test Procedure for the LCDAuto Specifications Appendix a Specifications Reference DataFunctionalInputs Physical Performance Function Blocks Foundation Fieldbus SpecificationsRosemount Conformance to Specifications 2 σ -1 σBackup Link Active Scheduler LAS Power SupplyAlarms Software Upgrade in the FieldTable A-1. Rosemount 644 Input Options and Accuracy AccuracyAccuracy Example Table A-2. Ambient Temperature Effect Ambient Temperature EffectThermocouples Temperature Effects Examples Dimensional Drawings 644H DIN a Head Mount00809-0400-4728, Rev AA LCD DisplayMounting JuneLCD Display Cover Sanitary Housing CoversRing 76.2 27.9 74.4 25.4 44.5 70.0 Ordering Information OptionsAssemble To Options Standard Configuration StandardAlarm Level Configuration Standard Enclosure Options StandardTagging ConsiderationsConfiguration tool Transmitter ConfigurationWith DeltaV, with AMS, or other Foundation fieldbus host or Requirements Option Code Specification Standard Foundation fieldbus ConfigurationCustom Configuration Standard Block ConfigurationAppendix B Product Certifications CE Electromagnetic Compatibility Compliance TestingAtex Directive 94/9/EC North American Certifications Hazardous Locations CertificatesRosemount 644 with Foundation fieldbus European Certifications Loop/Power TerminalsFisco Loop/Power Terminals Special Conditions for Safe UseTo 60 C Temperature ClassIECEx Certifications Fisco Group IIC To 80 CTransmitter Sensor Table B-3. Entity ParametersTransmitter I.S Transmitter Fisco Sensor Schedule of LimitationsApproval Temp Ukraine GostPattern Approval for Measuring Instruments See Certificate Description Group CodeInstallation Drawings Rosemount Rosemount Rosemount 00809-0100-4728, Rev AA June Sheet 2 00809-0100-4728, Rev AA June Sheet 3 00809-0100-4728, Rev AA June 00809-0100-4728, Rev AA June Sheet 2 Rosemount Rosemount 00809-0100-4728, Rev AA June Sheet 2 00809-0100-4728, Rev AA June Sheet 3 Appendix C Foundation fieldbus Block Information Basic Setup Resource BlockDefinition Parameters and Descriptions IndexFeaturesel FailedenableFeatures Maintenable00809-0400-4728, Rev AA Parameters Descriptions Sensor Transducer BlockDescription Effects transmitter operation Sensrdetailedstatus PrimaryvaluerangePrimaryvaluetype CalvandusencoeffTransducerdirectory XderrorSESNOR1DAMPING TransducertypeOutd Cutoff Filter Analog Measurement AccessAnalog Input AI Function Block Convert CalcAI Parameter Table AckoptionLolopri Table C-4. LCD Transducer Block Parameters and Descriptions LCD Transducer BlockParameter Index Description Table C-5. PID Block Parameters and Descriptions PID BlockParameter Index Index Lolim Lololim Lolopri Lopri Lower Trim Method Ungrounded Wiring MODEBLK.TARGETBad Uncertain DIN Rail Threaded SensorSecurity Self Test Limited Man Mode Unicode UNITSTYPE# Upper Trim MethodGrounded Ungrounded Wiring Direct Zero TrimIndex-4 Page Temperature GmbH Pacific Private Limited Emerson Process Management Rosemount Inc