Model 2701 User’s Manual
Basic DMM Operation
3-61
[:SENSe[1]]:DATA[:LATest]?
What it does
This query will return the last reading the instrument had, regardless of what may have
invalidated that reading, such as changing ranges or functions.
Limitations
This query is fully capable of returning meaningless, old data.
When appropriate
If, for some reason, the user wanted the last completed reading, even after changing ranges
or other measurement settings, which would invalidate the old reading.
The :CALC:DATA:LATest? query is similar to the :DATA:LAT? query, but applies to
readings that have math applied to them (e.g.,:MX+B scaling).
Examples
One-shot reading, DC volts, no trigger, fastest rate
*RST
:SENSe:FUNCtion ‘VOLTage:DC’
:SENSe:VOLTage:DC:RANGe 10
// Use fixed range for fastest readings.
:SENSe:VOLTage:DC:NPLC 0.002
// Use lowest NPLC setting for fastest readings.
:DISPlay:ENABle OFF
// Turn off display to increase speed.
:SYSTem:AZERo:STATe OFF
// Disable autozero to increase speed,
// but may cause drift over time.
:SENSe:VOLTage:DC:AVERage:STATe OFF
// Turn off filter for speed.
:READ?
(Enter reading)
One-shot reading, DC volts, bus trigger, auto ranging
*RST
:TRIGger:SOURce BUS
:SENSe:FUNCtion ‘VOLTage:DC’
:SENSe:VOLTage:DC:RANGe:AUTO ON
:INITiate
*TRG
// Triggers reading
:SENSe:DATA:FRESh?
(Enter reading)
2701-900-01.book Page 61 Wednesday, August 3, 2011 9:43 AM
Summary of Contents for 2701
Page 344: ...12 CommonCommands 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 366: ...15 SCPIReferenceTables 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 393: ...A Specifications 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 399: ...B Model7700ConnectionGuide 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 410: ...C StatusandErrorMessages 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 417: ...D SignalProcessing SequenceandDataFlow 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 430: ...E MeasurementConsiderations 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 450: ...G KE2700InstrumentDriver Examples 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...