18-28 SCPI Command Reference 2400 Series SourceMeter
®
User’s Manual
Varistor alpha
*RST
:SENS:FUNC:OFF:ALL
:SENS:FUNC:ON “VOLT”,“CURR”
:SOUR:FUNC:MODE CURR
:SOUR:CURR:STAR <n>;STOP <n>;MODE SWE
:SOUR:CURR:STEP <n>
:TRIG:COUN 2
:CALC:MATH:EXPR:NAME “VARALPHA”
:CALC:STAT ON
:OUTPUT ON
:INIT
:CALC:DATA?
Percent Deviation
NOTE Percent deviation is not a built-in math expression for remote operation. This
program example creates the following percent deviation (PER_DEV) calcula-
tion to test 10k
Ω
resistors. This user-defined math expression is added to the
catalog.
Where: RES is the actual measured resistance of the DUT.
10kΩ is the reference value.
*RST
:SENS:FUNC:OFF:ALL
:SENS:FUNC:ON or “RES”
:CALC:MATH:UNIT “%”
:CALC:MATH:EXPR:NAME “PER_DEV”
:CALC:MATH:EXPR ((RES - 10e3) / 10e3) * 100
:CALC:MATH:EXPR:NAME “PER_DEV”
:CALC:STAT ON
:OUTPUT ON
:INIT
:CALC:DATA?
NOTE Parameter <n> referenced in the :SOUR:VOLT and :SOUR:CURR commands
above represent the actual numbers that the user would program. All other com-
mands should be entered as shown.
PER_DEV
RES 10kΩ–()
10kΩ
------------------------------------
100×=
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