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7-10 Return to Section Topics 2600S-901-01 Rev. C / January 2008

Section 7: Buffer (Data Store) Series 2600 System SourceMeter® Instruments Reference Manual

Dual buffer example

The listing below shows a programming example for storing both current and voltage readings

using buffer 1 for current and buffer 2 to store voltage readings. The SourceMeter stores 100

current and voltage readings and then recalls all 100 sets of readings.

smua.reset() -

Restore Series 2600 defaults.

smua.measure.autorangei = smua.AUTORANGE_ON -

Select measure I auto range.

smua.measure.autorangev = smua.AUTORANGE_ON -

Select measure V auto range.

format.data = format.ASCII -

Select ASCII data format.

smua.nvbuffer1.clear() -

Clear buffer 1.

smua.nvbuffer2.clear() -

Clear buffer 2.

smua.measure.count = 100 -

Set buffer count to 100.

smua.measure.interval = 0.1 -

Set measure interval to 0.1s.

smua.source.func = smua.OUTPUT_DCVOLTS -

Select source voltage function.

smua.source.levelv = 1 -

Output 1V.

smua.source.output =smua.OUTPUT_ON -

Turn on output.

smua.measure.overlappediv

(smua.nvbuffer1,smua.nvbuffer2)

- Store current readings in buffer 1,

voltage readings in buffer 2.

waitcomplete() -

Wait for buffer to fill.

smua.source.output =smua.OUTPUT_OFF -

Turn off output.

printbuffer(1, 100, smua.nvbuffer1) -

Return buffer 1 readings 1-100.

printbuffer(1, 100, smua.nvbuffer2) -

Return buffer 2 readings 1-100.

Keithley 2601 Reference Manual

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