Siemens LU01 MT-00 Measurement Message, Technical Reference Field Name, Definition

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26 through 32. The mode of communication is established by the configuration of the connection made at the SITRANS LU01, either RS-232, RS-485 or bipolar current loop.

The SITRANS LU01 uses simplex convention communication protocol. Data messages are continuously transmitted at regular intervals (no poll is required) at 4800 baud. All data is transmitted in structured messages of ASCII characters consisting of 8 data bits, no parity, and 1 stop bit.

If Peripheral Communications (P740) is set for "formatted" messages, a comma is inserted between each message field (except immediately preceding the "End of Message" characters).

MT-00 Measurement Message

start of message

point #

status A

status C

percent

message type

reading

status B

temperature

end of message

Technical Reference

Field Name

Start Of Message

Message Type

Point #

Reading

Definition

STX ($02)

2 characters, 00 (indicates the following data pertains to a scan point mea- surement)

3 characters, 001 to 003 (e.g. the message pertains to Point Number 1)

5 characters, 0.000 to 9999. (e.g. reading = 678.9, DDDD. = no data, EEEE. = overflow)

Status A

1 character, $0 to $F (convert to binary, e.g. temp, echo, and cable OK, not priority)

MSB	LSB
# #	# #

1 = temp alarm

1 = loss of echo (failsafe expired)

1 = transducer cable fault

1 = priority point

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SITRANS LU01 – INSTRUCTION MANUAL

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Contents Sitrans This document is available in bound version Technical data subject to changeManual for agreement with Instrumentation described, variationsTable of Contents Independent Relay Setpoints 100 Page Introduction IntroductionRS-232 or Local SmartLinxProgrammable Features Sitrans LU01 FeaturesUnits ManualSpecifications SpecificationsAmbient temperature Installation categoryOutputs ProgrammerOptions TransducerCable Refer to associated product documentationManual On Product Description Safety marking symbolsInstallation InstallationLocation Cable/Conduit Entry RequirementsM 1.65 ft Transducer MountingTransducer Types Switchterminal blockboard B RJ-11 port Communication Mode LEDInterconnection AC ModelTB1 DC ModelBoard a Optional SmartLinx ModuleLCD Card Transducer System DiagramRelays Temperature SensorMA Outputs To TS-3SmartLinx CommunicationLevel System Synchronization SerialAC Supply Wiring PowerDC Supply Wiring Position. SelectProgrammer Communications AccessUse the hand programmer to change individual parameters RJ-11 port RJ-11 cableDisplay ProgrammingDisplay Segment DescriptionFunction keys KeypadProgramming Changing Parameters Program Mode EntryProgramming Security Parameter Reset FeaturesParameters Types Operation Display in RUN ModeOperation P731 Operation Key DescriptionBer System Performance Evaluation Point Alarm Indicator RelayPerformance Test Results Operation Level Space or DistanceOperation Parameter Reference Program modeHelpful Hints ParametersSecures the Sitrans LU01 from changes P000 Lock1954 OFF programming permitted Lated levelP001 Operation Quick Start P001 to P007P002 Material P003 Maximum Process SpeedP005 Units Specifies measurement units used for dimensional valuesP004 Transducer Sets the range level to be measured P006 EmptyP007 Span P050 Tank Shape Application Parameters Volume P050 to P055Examples P051 Maximum VolumeP053 Tank Dimension L P052 Tank Dimension aUniversal Volume Calculation Dimension a as used in P050 Tank ShapeEntering a Level Breakpoint Typical volume calculationsEntering a Volume Breakpoint P061 Convert Reading Display and Reading P060 to P062P060 Decimal Position P062 Offset Reading P070 Failsafe TimerFailsafe P070 to P072 P071 Failsafe Material Level Material level reported when a Failsafe State is initiatedOnce activated, the Failsafe State initiates the following Selecting HI, LO, or HOLdRelay reaction Relays P100 to P119P072 Failsafe Level Advance Option Relay # Point # Standard Alarm as % of Span, P007 P100 Preset ApplicationsP102 Low Alarm P101 High AlarmP103 High High Alarm P104 Low Low AlarmP111 Relay Control Function Custom Relays P111 to P113Function Sets the control algorithm used to trip the relayRelays are energized and de-energized Independent Relay SetpointsValues For P111 Control Type Relay Control Action When P112 Relay on Setpoint Distance above and below the bound alarm setpointsP113 Relay OFF Setpoint P116 Dead BandIndependent Relay Failsafe P129 Relay Function P111 Preset P129P129 Relay Failsafe To select an independent Relay Failsafe valueP200 mA Output Range MA Output P200 to P219P201 mA Output Function P203 mA Output Value / TransducerMA Output Limits P212 and P213 Independent mA Setpoints P210 and P211P210 0/4 mA Output Setpoint P211 20 mA Output SetpointP213 mA Output Max Limit MA Output Trim P214 to P215P214 4 mA Output Trim P215 20 mA Output TrimP300 Temperature, Transducer Maximum Record Temperatures P300 to P303MA Output Failsafe P219 Standard Data Logging P300 to P321Profile Records P330 to P337 P302 Temperature, Sensor MaximumP330 Profile Record Code DescriptionAuto Record on and OFF Setpoints P334 to P337 P331 Auto Record EnableP333 Auto Record Interval P335 Auto Record OFF Setpoint P334 Auto Record on SetpointP336 Auto Record Filling / Emptying P337 Auto Record LOE TimeRange Calibration P650 to P654 Installation Records P340 to P342Using Sound Velocity Calibration Condition for use of this featureP651 Sound Velocity Calibration Offset CalibrationP652 Offset Correction Value altered when an Offset Calibration is performedP653 Velocity P654 Velocity at 20CP664 Temperature Temperature Compensation P660 to P664View the transducer temperature in C P660 Temp SourceP700 Max Fill Rate Rate P700 to P707P701 Max Empty Rate P003 Value Meters/MinuteP704 Rate Filter P702 Filling IndicatorP703 Emptying Indicator P706 Rate Update Distance P705 Rate Update TimeMeasurement Verification P710 to P713 P707 Rate ValueP712 Echo Lock Sampling P711 value P712 preset valueP711 Echo Lock Transducer Scanning P725 to P729 P727 Scan DelayP713 Echo Lock Window P726 Level System SyncDisplay P730 to P733 P728 Shot DelayP729 Scan Time P730 Auxiliary ReadingP733 Scroll Access P732 Display DelayAdjusts the Point Number display scroll speed P731 Auxiliary Reading KeySmartLinx Reserved 750 to Peripheral Communication Support Parameters P740 to P749P740 Peripheral Communications P748 RS-485 TerminationP790 Hardware Error SmartLinx Hardware TestingCommunications P772 P772 Baud RateP792 Bus Error Count P791 Bus ErrorEcho Processing P800 to P807 P794 SmartLinx Module Type P795 SmartLinx ProtocolP801 Range Extension P803 Shot / Pulse ModeP802 Transducer with Submergence Shield Determines what type of ultrasonic shots are firedP805 Echo Confidence P804 Confidence ThresholdDisplay Description Determines which echoes are evaluated by softwareP806 Echo Strength Advanced Echo Processing P810 to P825P807 Noise Anatomy of an Echo ProfileP810 Scope Displays Display SymbolScrolling ValuesP816 Echo Time Raw Profile Pointer P817 to P825P817 Profile Pointer Time P818 Profile Pointer DistanceP820 Algorithm P819 Profile Pointer AmplitudeP822 Narrow Echo Filter P821 Spike FilterP823 Reform Echo Dampens spikes in the echo profile to reduce false readingsP825 Echo Marker Trigger Advanced TVT Adjustment P830 to P835P830 TVT Type Selects the TVT Curve usedAllows manual adjustment of the TVT curve P832 TVT Shaper AdjustP831 TVT Shaper To change a breakpointP834 TVT Start Duration P833 TVT Start MinP835 TVT Slope Min Range -30 toAdjust the short shot transmit pulse frequency in kHz Advanced Shot Adjustment P840 to P852P840 Short Shot Number P841 Long Shot NumberP844 Short Shot Width P843 Long Shot FrequencyP845 Long Shot Width P850 Short Shot BiasP851 Short Shot Floor Test P900 to P913P852 Short Shot Range P900 Software Revision NumberP903 Display P902 WatchdogP904 Keypad P905 Transmit PulseP913 Sensor Temperature P912 Transducer TemperatureP907 Programmer Interface P910 RelayP920 Reading Measurement Measurement P920 to P927P921 Material Measurement P922 Space MeasurementMaster Reset P999 P924 Volume MeasurementThis feature resets all parameters to original values P927 Distance PercentTransmit Pulse Technical ReferenceEcho Processing Technical ReferenceSound Velocity Distance CalculationEcho Processing Displays Scope Displays, P810 Dolphin Plus DisplayUniversal, Linear P050 = Volume CalculationVolume Level Universal, Curved P050 = Maximum Process SpeedApplication Examples Ment P728 Shot Delay s P803Parameter P003 ValueMaterial Level Example 1 Level MeasurementInstructions When satisfied with system performance and programmingNumber P051 Max Volume Enter 1457 for 1457 m Material Volume Example 2 Space Measurement Description InstructionsP200 MA Range P213 MA Max Limit P219 MA Failsafe No entry required. preset for 20 mA = low level, P001 =P001 P002 P003 P004 P005 P006 P007 P070 Application Assistance Communication SupportReference Number TechnicalDefinition MT-00 Measurement MessageTechnical Reference Field Name MT-01 Hold Message # # = rate alarm = band alarmTemp Percent End Of Message Start of message Message typeStart of message MT-03 Point Not ScannedMessage Type Point # End Of Message STX $02Unit Repair and Excluded Liability MaintenanceMaintenance Troubleshooting Troubleshooting GuideSymptom Cause Action To update the value displayed after each aiming adjustment To display Echo Confidence in the RUN modeMeasurement Difficulties Flashing LOE DisplayFixed Reading Wrong Reading Troubleshooting Programming Charts Programming ChartsName P000 Lock GP330 Profile Record P331 Auto Record Enable G P332 P116 Bound Alarm Deadband P129 Relay FailsafeP200 MA Range P201 P202 MA Allocation P203Programming Charts Parameter Advanced Echo Processing 7ml19985BE02