Limit Hysteresis, Min Out, Max Out, Out unit text | Siemens LR 460

Parameters

4.1.8.5. Limit Hysteresis

Hysteresis is used to adjust the sensitivity of the trigger for alarm messages. It is used to compensate when a process variable fluctuates around the same value as a limit. A high level alarm occurs when a value exceeds an upper limit. The alarm’s status remains true until the value drops below the limit minus the alarm hysteresis. The directions are reversed for low limit detection.

Enter a value for the hysteresis here, to be used for all warnings and alarms. The units are the same as the output value scale.

4.1.8.6. Min Out

Min Out is a minimum peak indicator for the AIFB output values.

4.1.8.7. Max Out

Max Out is a maximum peak indicator for the AIFB output values.

4.1.9.Fail-safe Mode (PROFIBUS PA only)

4.1.9.1.Fail-safe Mode.

Fail-safe Mode occurs if the status of the input value is bad, or if the device has been put into Fail-safe mode using Simulation. One of three options can be selected for the material level to be reported when the LOE timer expires.

Handheld
programmer		Material level to be reported
Options
FS VALUE		Default value used as output value.

LAST VAL	*	Store last valid output value.

USE BAD		Calculated output value is incorrect.

4.1.9.2. Fail-safe Value

(Accessible in PDM only after FS VALUE is selected in Fail-safe Mode).

User-defined default value for the OUT parameter, if sensor or sensor electronic fault is detected. Units are the same as the OUT value.

	Values	Range:

		Default: 0.000
		Default: 0.000

4.1.A. Human Interface

4.1.A.1. Decimal Point

The number of digits to display after the decimal point.(The LCD is limited to displaying three decimal places.)

Out unit text

If the code list does not contain a desired unit for the OUT parameter, (see General Requirement) you can write the specific text in this parameter.

Page 64

SITRANS LR 460 – INSTRUCTION MANUAL

7ML19985JM01

Image 70

Siemens LR 460 Limit Hysteresis, Min Out, Max Out, Fail-safe Mode Profibus PA only, Fail-safe Value, Out unit text

Contents

Sitrans Contact Smpi Technical Publications at the following address Table of Contents Table of Cotents Quick Start Wizard via the handheld programmer Iii AIFB1 AIFB2 Appendix F Hart Information Structure Direct Current Safety NotesSafety marking symbols 7ML19985JM01 Canadian Installations only Industry Canada IC rules FCC and IC Conformity Application Examples ManualSupport Abbreviations and Identifications Short Long Form Description Units Cont’d Approvals and Certificates ProgrammingSystem Implementation Specifications SpecificationsPower Performance Interface Programmer infrared keypad1 Mechanical Process EnvironmentalCommunication Approvals Dimensions Standard configuration Installation InstallationMounting Location Nozzle location Key considerationsNozzle design Device orientation Polarization Reference Point Installation in vessel with obstructionsPolarization Reference Point Easy Aimer Installation Holding the electronics enclosure firmly Air Consumption Air Purging System OptionalFlow rate versus applied pressure Slotted Flange Dimensions see above Pipe Flange Thick Bolt Hole No. Installation Optional Dust Cap Wiring Connecting Sitrans LR Connecting Hart Typical PLC/mA configuration with Hart Hart wiringAC version DC version Power Demands Profibus wiringBus Termination AC version DC version From Connecting Sitrans LR 460 on page 19, step Product Nameplate Hazardous area installationsFor use and assembly, refer to the main instructions Reference European Atex Directive 94/9/EC, Annex II, 1/0/6 Directive 94/9/EC Annex II, clause Device Permitted ambientThermal Data for 7ML5426 Series 61241 -17 in Europe 7ML19985JM01 Activating Sitrans LR RUN mode displayQuick Start Quick Start Press Mode to return to RUN mode Programming Sitrans LR Language Quick Start Wizard via the handheld programmerQuick Start Application Type Options High Calibration Point Operation typesUnits Values Quick Start Wizard via Simatic PDM Configuring a new deviceDevice Description DD Quick Start Wizard steps Identification Range Setup Application type Summary Quick Start Setting Description Level application example Auto False Echo Suppression Operating Sitrans LR 460 via Simatic PDM Rev .0, SP2 FeaturesFunctions in Simatic PDM Echo profile saving and viewing Trend Diagram Level Trend over TimeOpen the menu View Trend to see the level trend over tme Manual TVT Shaper Open the menu Device TVT Shaper Online Display Accessing Functions in PDMDisplay Configuring a new device Changing parameter settings via Simatic PDMDevice Description DD Configuration Flag Reset Hart only Parameters accessed via pull-down menusReset Calibrating LR 460 via PDM Simulation Digital/Analog TrimSimulate AO Analog Output Simulate Analog Input to AIFB1 or AIFB2 Pull-down menus via Simatic PDM Parameter ReferenceParameter menus Device menus View menus Language Options Quick Start WizardOperation Slow Operation Unit ConfigurationIdentification Open the menu Device Set Address Program To perform a Reset via the handheld programmerDescription Mer Device HandheldProgrammer Statistics Input Calibration Low Calibration Pt. default 30.000 mSensor Calibration Sensor Units High Level Point default High Calibration Pt. default 0.350 mLow Level Point default Level Offset default Values Detailed SetupMeasuring Limits Options Parameters RelatedTers Parame Echo detection position ParameEcho Sampling Window Near Range Window UsedRange Far Range Open the menu Device Auto False Echo Suppression TVT Auto False Echo Suppression setupTo use Auto False Echo Suppression via Simatic PDM Auto TVT Auto False Echo Suppression Display before Auto False Echo Suppression Example after Auto False Echo Suppression Manual TVT shaper Manual TVT Shaper ModeTVT Hover Level To change a breakpoint via PDM Altered by Altered byValues Range 0.0000 to 99999 m / min Related Echo Information OutputAIFB1 Unit Target Mode Profibus PA onlyBatch Phase Filter Time Constant Upper Value Upper Limit AlarmProcess Value Scale Output Scale Min Out Fail-safe Mode Profibus PA onlyLimit Hysteresis Max Out See AIFB1 the parameters for AIFB2 are identical AIFB2MA Output MA OUT value = x x 16 mA + 4 y Man Value Related parame Device Certification Relay ConfigurationCertificates and Approvals Related parame Remaining Device Lifetime Maintenance settingsRemaining Sensor Lifetime Service Interval Calibration Interval Parameters Principles of Operation Related Response LOE Timer Fill RateAppendix a Technical Reference Measurement Response Echo selection Echo ProcessingProfile monitoring via Simatic PDM Time Varying Threshold TVT Beam angle at -3dB reference False EchoesAuto False-Echo Suppression Technical Echo confidence Fail-safe ModeLOE Timer Near Range Blanking Fail-safe value Maximum Process Temperature Chart Temperature on the LCD secondary display Troubleshooting LR Symptom Possible cause Remedy Appendix B TroubleshootingTroubleshooting Fluctuates Reads empty Reads vessel bottom RegionSet Far Range to a lower value Is normal Troubleshooting LR 460 cont’d Symptom Possible cause Remedy General Fault Codes/PROFIBUS PA Extended Diagnostics Same Check configuration for Perform serviceOutside its temperature Has expired Eeprom corrupt Local Siemens By a memory error RepresentativeEeprom damaged Local Siemens Representative For the network Unable to collect profile Local Siemens Representative Local Siemens Device has been lost RepresentativeModule Representative Local Siemens Distance measurement Representative Maintenance Appendix C MaintenanceUnit Repair and Excluded Liability LCD Display RUN mode startup displayProgram Mode Display Local Interface Programming via the handheld programmer Hand-held programmer key functions in RUN modeHandheld programmer Key Function Individual Parameter Reset Hand-held programmer key functions in Navigation modeHand-held programmer key functions in Edit mode Key Name When Navigation Mode Hart modem interface for Simatic PDM Hart Device Description DDSimatic Process Device Manager PDM Hart Communications Hart Version Burst ModeSitrans LR 460 does not support Burst Mode Hart Communication Parameter Level Transducer Block LTB Block Model for recording and processing measured valuesProfile structure Hart F-90 Description of the blocks Analog Input Function Blocks AIFB1 and AIFB2 Device Description Configuration toolAppendix G Remote operation via Remote Operation PA GSD file Setting the Profibus address ConfigurationConfiguring a new device procedure Configuring Profibus PA with an S7-300/ 400 PLC Calibration via Simatic PDM Cyclic Data Appendix H Communication viaCyclic versus Acyclic Data Communication PA Codes for Bad Quality Status ByteStatus Codes for Good Quality H-96 Diagnosis reply applies only to cyclic masters DiagnosticsAcyclic Diagnostics Status Codes for Uncertain Quality = set Acyclic Data TransmissionByte Bit Description Indication Class H-98 Profibus Level Device Design Appendix J Profibus PA Profile StructureProfile structure PA Profie structure PA See parameter diagram onLevel Transducer Block function groups How the Level Transducer Block works Sensor Reference Point Analog Input Function Blocks 1 Electronics temperatureHow the AIFBs work Setting Description Output value J-104 Software rev Software DD Rev Date ChangesInitial release Sorftware rev K-106 Glossary Glossary Glossary Stilling-well see stillpipe Glossary Index Index View Reform Echo Reliable echo indicator 85 repairQuick Start Wizard Status byte LCD menu structure Echo SEL LCD menu charts LCD menus LCD menu charts 7ml19985JM01