Dmm.math.format - Keithley 3700A Series Reference Manual

Section 11: TSP command reference

dmm.math.format

This attribute specifies which math operation is performed on measurements when math operations are enabled.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
state = dmm.math.format
dmm.math.format = state
state
Details
This is not available for "nofunction". If this command is queried when "nofunction" is
selected, nil is returned. If it is written when "nofunction" is selected, an error is returned.
If you set this attribute to dmm.MATH_NONE, math operation is disabled, even if math operation
(dmm.math.enable) is enabled.
Use a setting of dmm.MATH_MXB to have
where:
•
Y is the result
•
X is the normal measurement
•
m is the user-entered constant for scale factor (dmm.math.mxb.mfactor)
•
b is the user-entered constant for offset (dmm.math.mxb.bfactor)
If you are using relative offset measurement control (dmm.rel.enable), the relative offset reading is
used for X.
Use a setting of dmm.MATH_PERCENT to have:
where:
•
Percent is the result
•
Input is the normal measurement (if using dmm.rel.enable, it will be the relative offset value)
•
Reference is user entered constant (dmm.math.percent)
Use a setting of dmm.MATH_RECIPROCAL for 1/X operation, where X is normal or the measurement
value with relative offset applied.
The math operation is performed before any of the enabled limit testing.
11-200
Affected by
Reset
DMM reset
Recall setup
Math operation to be performed on measurements:
▪
dmm.MATH_NONE or 0
▪
dmm.MATH_MXB or 1
▪
dmm.MATH_PERCENT or 2
▪
dmm.MATH_RECIPROCAL or 3
Series 3700A System Switch/Multimeter Reference Manual
Where saved Default value
Create configuration script 2 (dmm.MATH_PERCENT)
Save setup
3700AS-901-01 Rev. D/June 2018