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)
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