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Model 2651A High Power System SourceMeter® Instrument Reference Manual Section 2: General operation

2651A-901-01 Rev. A / March 2011 2-27

Source-measure programming example

The following programming example illustrates the setup and command sequence of a basic

source-measure procedure with the following parameters:

• Source function and range: volts, autorange

• Source output level: 5 V

• Current compliance limit: 10 mA

• Measure function and range: current, 10 mA

-- Restore Model 2651A defaults.

smua.reset()

-- Select voltage source function.

smua.source.func = smua.OUTPUT_DCVOLTS

-- Set source range to auto.

smua.source.autorangev = smua.AUTORANGE_ON

-- Set voltage source to 5 V.

smua.source.levelv = 5

-- Set current limit to 10 mA.

smua.source.limiti = 10e-3

-- Set current range to 10 mA.

smua.measure.rangei = 10e-3

-- Turn on output.

smua.source.output = smua.OUTPUT_ON

-- Print and place current reading in buffer.

print(smua.measure.i(smua.nvbuffer1))

-- Turn off output.

smua.source.output = smua.OUTPUT_OFF

-- Beep.

beeper.enable = beeper.ON

beeper.beep(1, 1200)

beeper.enable = beeper.OFF

Triggering in local mode

It is not necessary to change any trigger settings to use the basic source and measurement

procedures covered in this section, however it is important to reset the instrument before triggering in

local mode.

Press the MENU key, and then select SETUP > RECALL > INTERNAL > FACTORY to reset the

factory default conditions.

Keithley 2651A Reference Manual

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