Actual values, Acquisition – National Instruments Instrument Driver NI-DMM User Manual

Page 6

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NI-DMM Instrument Driver Quick Reference

6

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Actual Values

ICON

TYPE

PARAMETER

VALUE TO SET, COMMENTS

ViSession

vi

Session handle

ViReal64* autoRange

Value

Output

ViSession vi

Session

handle

ViReal64* Aperture

Time

Output

ViInt32*

Aperture Time

Output (seconds or PLC)

Units

ViSession vi

Session

handle

ViReal64* Measurement

Output

(seconds)

Period

Acquisition

ICON

TYPE

PARAMETER

VALUE TO SET, COMMENTS

ViSession vi

Session

handle

ViInt32 Maximum

Time

Milliseconds

ViReal64*

Measurement Output

ViSession vi

Session

handle

ViInt32 Maximum

Time

Milliseconds

ViInt32

Number to Read

Default = 4

ViReal64 [ ]

Measurements

Output

ViInt32* Actual

Number

Output

niDMM Read Multi Point

(niDMM_ReadMultiPoint)

Acquires multiple measurements and returns an array of measured values.

niDMM Read

(niDMM_Read)

Acquires a single measurement and returns the measured value.

niDMM Get Measurement Period

(niDMM_GetMeasurementPeriod)

Returns the measurement period, which is the amount of time it takes to complete
one measurement with the current configuration.

niDMM Get Aperture Time Info

(niDMM_GetApertureTimeInfo)

Returns the aperture time and aperture time units.

niDMM Get Auto Range Value

(niDMM_GetAutoRangeValue)

Returns the actual range that the DMM is using, even when auto ranging is off.

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