6: Reading buffers 2470 High Voltage SourceMeter Instrument Refer
6-16 2470-901-01 Rev. A / May 2019
Using SCPI commands to select a reading buffer:
To make a measurement and store the readings in a specific reading buffer, send the command:
:READ? "<bufferName>"
If you do not specify a buffer name, readings are stored in defbuffer1.
An alternative to sending the :READ? "<bufferName>" command is to send the command:
:TRACe:TRIGger "<bufferName>"
The :TRACe:TRIGger command stores readings in the specified reading buffer. If no buffer is
specified for the parameter, defbuffer1 is used. To see the readings stored in the buffer after usi
ng
t
his command, use the :FETCh? command to see the last reading stored in the buffer or
the :TRACe:DATA? command to see multiple readings from the buffer.
To specify a user-defined reading buffer, you must create the buffer first.
To select current as the measurement function, measure current, and return the readings in the
testData reading buffer, send the following commands:
:SENSe:FUNCtion "CURRent"
:READ? "testData"
To measure current and store the readings in the defbuffer2 reading buffer, send the following
c
ommand:
:MEASure:CURRent? "defbuffer2"
To measure voltage and store the readings in the defbuffer2 reading buffer, send the following
c
ommand:
:MEASure:VOLTage? "defbuffer2"
To measure current and return the relative time and a reading, send the following command:
:MEASure:CURRent? "testData", REL, READ
Buffer storage is consistent whenever readings are taken. Parameters such as REL and READ only
affect what is included in the response. If you do not include parameters, the command only returns
the reading.
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