Emerson manual Rosemount 848L, Reference Manual, 00809-0100-4696,Rev AA September

Page 28
Manual background

Rosemount 848L

Reference Manual

00809-0100-4696, Rev AA September 2004

ADVISE_ACTIVE

The ADVISE_ACTIVE parameter displays which of the advisories is active. Only the advisory with the highest priority will be displayed. This priority is not the same as the ADVISE_PRI parameter described above. This priority is not user configurable.

ADVISE_ALM

ADVISE_ALM is an alarm indicating advisory alarms. These conditions do not have a direct impact on the process or device integrity.

Recommended Actions for PlantWeb Alarms

RECOMMENDED_ACTION

The RECOMMENDED_ACTION parameter displays a text string that will give a recommended course of action to take based on which type and which specific event of the PlantWeb alarms is active.

Table 3-1.

RB.RECOMMENDED_ATION

 

Failed/Maint/Advise

Recommended Action

Alarm Type

Active Event

Text String

 

 

 

NONE

None

No action required

 

 

 

 

Prescaler Overflow

Check the Divisor parameter of all PS function

ADVISORY

 

calls in the logic equations

NV Write Deferred

Reduce the frequency in which applications

 

 

 

write to NV Memory

 

PWA Simulate Active

Disable PWA_SIMULATE parameter in the

 

 

Resource Block

 

Secondary Value

Ensure that the transmitter is not too close to

MAINTENANCE

Degraded

extreme hot or cold environments

 

 

Configuration Error

Verify that the Logic equations are correct in

 

 

 

the Logic transducer block

 

 

 

 

Electronics Failure

Replace the electronics

 

NV Memory Failure

Replace the electronics

 

No I/O Power

Check the IO Power supply, polarity, wiring,

FAILED

 

and connections.

Primary Value Failure

Check the sensor, configuration, wiring, and

 

 

 

connection for open or shorted sensors.

 

Secondary Value

Verify that the body temperature is within the

 

Failure

operating limits of this device.

 

 

 

3-8

Image 28
Contents Reference Manual 00809-0100-4696,Rev AA SeptemberRosemount 848L Discrete Logic Temperature Transmitter withRosemount 848L FOUNDATION FieldbusTable of Contents SECTION 1 Introduction SECTION 2 InstallationSECTION 3 Configuration Rosemount 848LSECTION Operation and Maintenance APPENDIX A Reference Data APPENDIX B Product CertificationsAPPENDIX C Function Blocks Rosemount 848LAPPENDIX D Logic Equation Syntax APPENDIX E Motor ControlAPPENDIX F Valve Control Rosemount 848LReference Manual Rosemount 848LTOC-4 SAFETY MESSAGES Warnings SectionIntroduction Rosemount 848LOVERVIEW TransmitterManual Rosemount 848LReference Manual Rosemount 848L00809-0100-4696,Rev AA September Rosemount 848L Reference ManualInstallation SAFETY MESSAGES Warnings MOUNTINGSection Rosemount 848LMounting to a DIN Rail Without an Enclosure Mounting to a Panel with a Junction BoxRosemount 848L Reference ManualMounting to a 2-InchPipe Stand Rosemount 848LReference Manual 00809-0100-4696,Rev AA SeptemberWIRING Power Supply ConnectionsRosemount 848L Reference ManualSWITCHES Surges/TransientsGROUNDING Rosemount 848LReference Manual Rosemount 848L00809-0100-4696,Rev AA September I/O WIRING DISCRETE INPUT WIRING CONFIGURATIONDISCRETE OUTPUT WIRING CONFIGURATION Rosemount 848LRosemount 848L TAGGINGReference Manual INSTALLATION Using Cable Glands TRANSMITTER LABELRosemount 848L Reference ManualRosemount 848L Using Conduit EntriesReference Manual Configuration OVERVIEW SAFETY MESSAGES WarningsSection Rosemount 848LRosemount 848L GENERAL BLOCK INFORMATION ModesReference Manual Rosemount 848L Link Active Scheduler Block InstantiationReference Manual RESOURCE BLOCK FEATURES and FEATURES SEL CapabilitiesRosemount 848L Reference ManualRosemount 848L MAX NOTIFYReference Manual Rosemount 848L PlantWeb AlarmsReference Manual Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Rosemount 848L Alarms I/O TRANSDUCER BLOCKReference Manual Rosemount 848L LOGIC TRANSDUCER BLOCKReference Manual Rosemount 848L Reference Manual00809-0100-4696,Rev AA September Figure 3-1.848L Logic Transmitter Data FlowReference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Rosemount 848L DISCRETE INPUT BLOCKSReference Manual DISCRETE OUTPUT BLOCKS MULTIPLE DISCRETE INPUT BLOCKMULTIPLE DISCRETE OUTPUT BLOCK Rosemount 848LRosemount 848L Reference ManualSection 4 Operation and Maintenance FOUNDATION FIELDBUS INFORMATIONSAFETY MESSAGES Warnings Rosemount 848LMAINTENANCE Communication/PowerResetting the Configuration RESTART CommissioningTROUBLESHOOTING I/O Transducer and Logic Block TroubleshootingResource Block NAMUR SensorsRosemount 848L Reference ManualSPECIFICATIONS Functional Specifications Appendix AReference Data Rosemount 848LReference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Physical Specifications Function Blocks SpecificationRosemount 848L Reference ManualRosemount 848L DIMENSIONAL DRAWINGSReference Manual Figure A-3.Rosemount 848L Wiring Diagram Rosemount 848LReference Manual 00809-0100-4696,Rev AA SeptemberRosemount 848L ORDERING INFORMATIONReference Manual Rosemount 848L Reference ManualAppendix B Product Certifications APPROVED MANUFACTURING LOCATIONSEUROPEAN DIRECTIVE INFORMATION HAZARDOUS LOCATIONS CERTIFICATES North American ApprovalsRosemount 848L European ApprovalsReference Manual Appendix C Function Blocks RESOURCE BLOCK PARAMETERSRosemount 848L Reference ManualReference Manual Rosemount 848LFREE SPACE Reference Manual Rosemount 848LOUTPUT Rosemount 848L ADVISE ENABLEReference Manual I/O TRANSDUCER PARAMETERS Rosemount 848LReference Manual 00809-0100-4696,Rev AA SeptemberReference Manual Rosemount 848LTRANSDUCER TYPE Reference Manual Rosemount 848LOUT 3 TAG LOGIC TRANSDUCER PARAMETERS Rosemount 848LReference Manual 00809-0100-4696,Rev AA SeptemberRosemount 848L DISCRETE INPUT BLOCKReference Manual Rosemount 848L Reference Manual00809-0100-4696,Rev AA September Table C-4.ParametersRosemount 848L DISCRETE OUTPUT BLOCK Supported ModesReference Manual Rosemount 848L MULTIPLE DISCRETE INPUT BLOCKSReference Manual Rosemount 848L Reference ManualMULTIPLE DISCRETE OUTPUT BLOCK 00809-0100-4696,Rev AA SeptemberRosemount 848L Reference Manual00809-0100-4696,Rev AA September Table C-7.Parameters andRosemount 848L Appendix D Logic Equation SyntaxReference Manual Rosemount 848L Reference Manual00809-0100-4696,Rev AA September Table D-1.Supported FunctionsReference Manual Rosemount 848LPS channel number, divisor ERROR HANDLING Table D-2.Error HandlingRosemount 848L Reference ManualRosemount 848L EXAMPLESReference Manual Rosemount 848L Reference ManualAppendix E Motor ControlINTRODUCTION TO MOTOR CONTROL Rosemount 848LRosemount 848L VARIATIONS ON MOTOR CONTROLReference Manual Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Rosemount 848L WRITING 848L EQUATIONS Basic Motor ControlReference Manual Rosemount 848L Interlock Permissive Emergency ShutdownReference Manual Rosemount 848L Restart DelayReference Manual Rosemount 848L Maximum RestartsReference Manual Rosemount 848L Winding TemperatureReference Manual Rosemount 848L Hand-Off-AutoReference Manual Rosemount 848L Intermediate StopReference Manual Rosemount 848L Redundant Motors - Alternate StartReference Manual Rosemount 848L Redundant Motors - Timed SwitchReference Manual Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Rosemount 848L Redundant Motors - Switch on FailureReference Manual Reference Manual Rosemount 848L00809-0100-4696,Rev AA September Reference Manual Rosemount 848LE-16 Appendix F Valve ControlINTRODUCTION TO VALVE CONTROL Rosemount 848LRosemount 848L Alarms Variations on Valve ControlReference Manual Rosemount 848L Boolean Expressions Basic Valve ControlReference Manual Open-Auto-Close Alarm Variations Output Variations Output with InterlockRosemount 848L Reference ManualRosemount 848L Simple Valve Variations PermissiveReference Manual Rosemount 848L Double Block and BleedReference Manual Rosemount 848L Motorized Valve Heat Exchange Medium SelectionReference Manual Rosemount 848L Reference ManualIndex Rosemount 848LReference Manual 00809-0100-4696,Rev AA 9/17/04Reference Manual Rosemount 848L00809-0100-4696,Rev AA 9/17/04 Reference Manual Rosemount 848L00809-0100-4696,Rev AA 9/17/04 Reference Manual Rosemount 848LIndex-4 ¢00809-0100-4697F¤ Reference Manual