Keithley Interactive SourceMeter 2450, Reference Manual

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Model 2450 Interactive SourceMeter® Instrument Reference Manual Section 6: SCPI command reference
2450-901-01 Rev. B/September 2013 6-11
:CALCulate[1]:<function>:MATH:PERCent
This command specifies the constant that is used when math operations are set to percent.
Type Affected by Where saved Default value
Command and query Recall settings
Instrument reset
Power cycle
Measure configuration list
Save settings
Measure configuration list
1.000000
Usage
:CALCulate[1]:<function>:MATH:PERCent <n>
:CALCulate[1]:<function>:MATH:PERCent?
<function>
The function to which this setting applies:
•
Current: CURRent[:DC]
•
Resistance:
RESistance
•
Voltage: VOLTage[:DC]
<n>
The constant when the math operation is set to percent; the range is − 1e12 to
+ 1e12
Details
This is the constant that is used when the math operation is set to percent.
The percent math function displays measurements as percent deviation from a specified constant. The percent
calculation is:
Where:
• Percent is the result
• Input is the measurement (if relative offset is being used, this is the relative offset value)
• Reference is the user-specified constant
If you send this command without the <function> parameter, it will set the constant for all
functions.
Example
CALC:VOLT:MATH:FORM PERC
CALC:VOLT:MATH:PERC 50
CALC:VOLT:MATH:STAT ON
Set the math operations for voltage to percent.
Set the percentage value to 50.
Enable math operations.
Also see
Calculations that you can apply to measurements (on page 3-6)
:CALCulate[1]:<function>:MATH:FORMat (on page 6-7)
:CALCulate[1]:<function>:MATH:MBFactor (on page 6-8)
:CALCulate[1]:<function>:MATH:MMFactor (on page 6-10)
:CALCulate[1]:<function>:MATH:STATe (on page 6-12)