Series 2600 System SourceMeters Reference Manual Basic Operation 4-21
Return to Section 4 topics 2600S-901-01 Rev. A / May 2006
Remote ohms programming
The following paragraphs summarize basic commands necessary for remote
ohms programming and also give a programming example for a typical ohms
measurement situation.
Remote ohms command
Use the following command to obtain a resistance reading:
reading = smuX.measure.r()
See Table 4-7 for more commands necessary to set up source and measure
functions, and also Section 12 for more details.
Ohms programming example
The command sequence for a typical ohms measurement is shown below. These
commands set up the SourceMeter as follows:
• Source function: current, 10mA range, 10mA output
• Voltage measure range: auto
• Voltage compliance: 10V
• Sense mode: 4-wire
smua.reset() --Restore Series 2600 defaults.
smua.source.func = smua.OUTPUT_DCAMPS --Select current source function.
smua.source.rangei = 10e-3 --Set source range to 10mA.
smua.source.leveli = 10e-3 --Set current source to 10mA.
smua.source.limitv = 10 --Set voltage limit to 10V.
smua.sense = smua.SENSE_REMOTE --Enable 4-wire ohms.
smua.measure.autorangev = smua.AUTORANGE_ON --Set voltage range to auto.
smua.source.output = smua.OUTPUT_ON --Turn on output.
print(smua.measure.r()) --Get resistance reading.
smua.source.output = smua.OUTPUT_OFF --Turn off output.
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