GE RPT 301 Detailed Command Definitions Measurement Commands, Return stored reading, Get reading

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RPT 301 User Manual

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3.6Detailed Command Definitions Measurement Commands

R - Return stored reading

This command retrieves the current stored reading, as the reading is the stored and filtered (if the filter is selected) there will be no delay in the reply.

Command: R

Reply: nnnnnnn<SP>UNITS

Where:

‘nnnnnnn’ is the stored reading as a floating point number ‘Units’ are the units for nnnnnnn (i.e. mbar, mH2O, psi etc.)

G - Get reading

This command initiates a new measuring cycle. The reading is not returned by this command, string ‘G’ and ‘R’ together to return the reading (i.e. G;R<CR>). The instrument proceeds to the next command after the end of the measurement cycle (see specification for duration) or in the event of a reading failure (fault condition) after a time-out of approximately 2 seconds. The command synchronises the measurement cycle with an external event.

Note: Use of the G command overrides any filter that has been selected. The reading obtained is passed without filtering to the reading store.

Command: G

Reply: None

Result: Initiates new measurement cycle

A - Auto send reading

This command places the instrument into a mode where the value currently held in the reading store is sent to the control computer with a specified interval between each transmission. Auto send is terminated by any following command.

K177 Issue No. 3

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Contents RPT General Electric Company. All rights reserved RPT Digital Output Pressure Transducer K177 K177 Issue No Safety Abbreviations and Symbols Iii K177 Issue No Dimensions SpecificationDescription AccuracyPressure measurement Power supplyData Communications Pressure connectionAccessories Pressure Connection Mounting the Instrument FigureInstrument Dimensions Communication connections Electrical ConnectionConnections for remote on/off control Changing the communication interface standard Figure CommunicationsLK1 LK2 PL3PL1 Screening RPTSystem Operation Command SummaryCR Crlf Command Terminators Command Function MeasurementSet-up User calibrationSingle commands General Command FormatCommand Strings Page General Reply Format Error MessageData out of range Return stored reading Detailed Command Definitions Measurement CommandsGet reading Auto send readingAuto Send from switch-on Unit Set-up Set-up CommandsSet Resolution Command F, step, averageFilter Set-up Set Communications Options Status Command I,S/PIN, Name ValueCR formatIdentity User Calibration Linearity/Drift Compensation  Calibration CheckPIN PIN, New PIN Change PINDiagnostic Mode LED IndicatorDiagnostic Mode GeneralCleaning Approved Service Agents