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Fluke 45 5-28, 17.Miscellaneous Commands and Queries, Description, Measurement Function

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Miscellaneous Commands and Queries

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Users Manual

Miscellaneous Commands and Queries

Miscellaneous commands and queries are summarized in Table 5-17.

Command

^C (CNTRL C) FORMAT <frmt>

Table 5-17. Miscellaneous Commands and Queries

Description

The RS-232 equivalent of IEEE-488 DCL. Causes <CR><LF> and =><CR><LF> to be output.

Set output <frmt> to "1" or "2". Format 1 is compatible with IEEE-488.2.

Format 1 outputs measurement values without measurement units (e.g., "VDC," "ADC," "OHMS," etc.).

Format 2 allows measurement units (as represented below) to be output with measurement values. Format 2 is intended primarily for use with RS-232 print-only mode.

Table 5-16A. Measurement Units Output with Format 2

FORMAT?

SERIAL?

Measurement Function

Volts dc

Volts ac

Amps dc

Amps ac

Resistance

Frequency

Diode/Continuity Test

Meter returns <frmt> in use as "1" or "2”.

Meter returns its serial number.

Units Output As

VDC

VAC

ADC

AAC

OHMS

HZ

VDC

5-28

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Fluke 45 user manual 5-28, 17.Miscellaneous Commands and Queries, Description, 16A.Measurement Units Output with Format

Contents

Dual Display Multimeter LIMITED WARRANTY & LIMITATION OF LIABILITY Safety Class Interference InformationDeclaration of the Manufacturer or Importer Table of Contents TitleIntroduction Getting StartedOperating the Meter Using the Computer Interface ApplicationsMaintenance AppendicesList of Tables TitleReplacement Parts Performance Tests for mA Current FunctionsPerformance Tests for A Current Functions List of Figures TitleIntroduction ChapterIntroducing the Fluke 45 Dual Display Multimeter WWarningOptions and Accessories Where to go from HereChapter 1 Introduction Chapter 6 Maintenance Chapter 2 Getting startedChapter 4 Applications AppendicesPage WWARNING TO AVOID ELECTRICAL SHOCK OR OTHER INJURYMULTIMETER SAFETY Adjusting the Handle Line PowerGetting Started IntroductionFigure 2-1.Front Panel Figure 2-2.Rear PanelUsing the Pushbuttons Turning the Meter onFigure 2-4.Summary of Basic Pushbutton Operations Selecting a Measurement Range Automatic Input Terminal SelectionTaking Some Basic Measurements WWarningDiode/Continuity Testing Measuring Voltage, Resistance, or FrequencyMeasuring Current FREQ FREQGetting Started Taking Some Basic MeasurementsFigure 2-7.Continuity Testing Figure 2-8.Diode TestingCIRCUIT Note This is a Diode Test FunctionOperating the Meter Under Battery Power Optional Rack MountingOperating the Meter Under Battery Power Optional 2-10 Operating the Meter From the Front Panel Front Panel OperationsChapter IntroductionDisplay Primary DisplaySecondary Display REMOTE SMF MAX dB REL AUTOEXT TRG MIN HOLDInput Terminals Figure 3-4.Input TerminalsSelecting a Measurement Function RangingE, U, T AutorangingFigure 3-5.Function Selection Buttons Operating the Meter From the Front Panel RangingMeasuring Frequency Manual RangingFrequency Ranging Frequency Measurement Rates Frequency Sensitivity SelectionOperating the Meter From the Front Panel Measuring FrequencySelecting A Function Modifier K, I, H, JREL Relative Readings Modifier WWarningOperating the Meter From the Front Panel Selecting A Function ModifierdB Decibels and Audio Power Modifier Using Function Modifiers in Combination HOLD Touch Hold ModifierMN MX Minimum Maximum Modifier Using the SButton Selecting A Measurement Rate RateOperating the Meter From the Front Panel Selecting A Function Modifier3-15 PushbuttonsUsing The Compare Comp Function The List and Number EditorsUsing the List Editor Using the Number Editor Power-UpConfiguration Factory Settings of Power-UpConfigurationChanging the Power-UpConfiguration Calibration Using the Dual Display ApplicationsChapter IntroductionUsing Measurement Functions in Combination Using the Dual Display ApplicationsResponse Times How the Meter Makes Dual Display Measurements How the Meter Makes Dual Display MeasurementsMeas Function Update Rate in the Dual Display Mode External TriggerThermal Voltages When Measuring Resistance Two-WireConfigurationTrue RMS Measurements Correcting for Test Lead ResistanceEffects of Internal Noise in AC Measurements Calculated AC + DC RMS MeasurementsFigure 4-3.Waveform Comparison Chart ApplicationsTrue RMS Measurements 4-114-12 Operating the Meter Using the Computer Interface Local and Remote OperationsComputer Interfaces ChapterSetting Communication Parameters RS-232 RS-232 Print-OnlyMode Device Clear Using C CNTRL C Cabling the Meter to a Host or Printer RS-232Character Echoing and Deletion RS-232PromptsInstalling the IEEE-488Interface IEEE-488Operating LimitationsEnabling the IEEE-488Interface Addressing the MeterGetting Started With An Installation Test Installation Test for RS-232OperationsInstallation Test for IEEE-488Operations Cabling the Meter to a HostHow the Meter Processes Input If Test FailsInput Strings Input TerminatorsSending Command Strings to the Meter Typical IEEE-488Input StringsSending Numeric Values to the Meter 1.Commands to configure the meter if any 5-10 Figure 5-1.Typical IEEE-488Input StringsHow the Meter Processes Output Triggering OutputExternal Triggering from the Front Panel Setting the Trigger Type Configuration External Triggering via the Computer InterfaceTable 5-3.Trigger Type Event Status Enable Register Read CommandWrite Command Enable RegisterPage Event Status and Event Status Enable Registers 7 6 5 4Status Byte Register Reading the Status Byte RegisterService Request Enable Register Computer Interface Command Set IEEE-488Capabilities and Common CommandsTable 5-9. IEEE-488Common Commands Command5-20 Table 5-8. IEEE-488Interface Function SubsetsOperating the Meter Using the Computer Interface Computer Interface Command SetTable 5-10. IEEE-488Common Commands cont CommandFunction Commands and Queries Function Modifier Commands and QueriesTable 5-11.Function Commands and Queries CommandsOperating the Meter Using the Computer Interface Computer Interface Command SetCommand Table 5-12.Function Modifier Commands and QueriesCommand 5-24Description Range and Measurement Rate Commands and Queries Operating the Meter Using the Computer InterfaceComputer Interface Command Set 5-25Measurement Queries TRIGGER 5, unexpected results will be obtained5-26 Compare Commands and Queries Trigger Configuration CommandsMiscellaneous Commands and Queries CommandTable 5-17.Miscellaneous Commands and Queries 5-28RS-232Remote/Local Configurations Operating the Meter Using the Computer InterfaceComputer Interface Command Set CommandSample Program Using the RS-232Computer Interface 5-30aam23f.eps Operating the Meter Using the Computer Interface 5-31aam24s.tif 5-32 aam25s.tifOperating the Meter Using the Computer Interface 5-33aam26s.tif 5-34 aam27s.tifOperating the Meter Using the Computer Interface 5-35Maintenance CleaningLine Fuse WWarningTesting Current Input Fuses Current Input FusesReplacing the 100 mA Input Fuse Replacing the 10 A Input FuseWWarning WWarningSelf-TestDiagnostics and Error Codes Performance TestsService Function Range RateInput Level FrequencyReplacement Parts MaintenanceReplacement Parts Quantity Fluke Part Number Part DescriptionTable 6-5.Replacement Parts cont DESCRIPTION FLUKE PART NOAppendices AppendixPage SpecificationsPage Specifications Appendix ADisplay Counts and Reading Rates RS-232and IEEE-488Reading Transfer RatesDC Voltage Input ImpedanceNormal Mode Rejection Ratio Common Mode Rejection RatioDecibel Resolution True RMS AC Voltage, AC-CoupledAppendices Maximum InputDecibel Reference Resistance Maximum Crest FactorAC + DC Voltage Accuracy Input ImpedanceDC Current AC CurrentAppendices Maximum InputAccuracy Maximum Crest FactorMaximum Input RangeFrequencyOhms Diode Test/ContinuityOpen Circuit Voltage Input ProtectionFrequency Sensitivity of AC VoltageSensitivity Level of AC Current Open Circuit VoltageEnvironmental Specifications AAppendices General OptionsASCII/IEEE-488Bus Codes Appendix BPage Appendices ASCII/IEEE-488Bus Codes BIEEE-488.2Device Documentation Requirements Appendix CImplementation of IEEE Standard IntroductionAll queries generate a response when parsed No commands are coupledDevice-specificcommands used NUMERIC RESPONSE DATAFormat 1 NR3 NUMERIC RESPONSE DATA Format 2 NR3 NUMERIC RESPONSE DATA UNITMEASUREMENT Volts dcThe *RDT and *RAT? commands are not implemented There are no additional data structures