Keithley 3720-ST User Manual

Series 3700A System Switch/Multimeter Reference Manual Section 11: TSP command reference
3700AS-901-01 Rev. D/June 2018 11-217
dmm.rel.enable
Enables or disables relative measurement control for the function selected by dmm.func.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Reset
DMM reset
Recall setup
Create configuration script
Save setup
0 (dmm.OFF)
Usage
value = dmm.rel.enable
dmm.rel.enable = value
value
The setting:
▪ Enable: dmm.ON or 1
▪ Disable: dmm.OFF or 0
Details
This attribute is not available if dmm.func is set to "continuity" or "nofunction". If you query
this attribute when either of these functions is selected, nil is returned.
When relative measurements are enabled, all subsequent measured readings are offset by the
relative offset specified by dmm.rel.level. Each returned measured relative reading will be the
result of the following calculation:
Relative reading = Actual measured reading – Relative offset value
If you change functions with dmm.func, the relative enable setting changes to the enable setting for
that function.
The relative enable setting is saved with the dmm.func function setting, so if you use another
function, then return to the previous function, the relative enable settings you set previously are
retained.
An error is generated if:
• dmm.func is set to "continuity" or "nofunction".
• If the value is out of range for the selected function.
Example
dmm.func = "accurrent"
dmm.rel.acquire()
dmm.rel.enable = dmm.ON
Enables the relative measurements for AC
current and uses the acquire command to set
the relative level attribute.
Also see
dmm.configure.recall() (on page 11-165)
dmm.configure.set() (on page 11-166)
dmm.func (on page 11-179)
dmm.rel.acquire() (on page 11-216)
dmm.rel.level (on page 11-218)

Keithley 3720-ST Specifications

General

Brand	Keithley
Model	3720-ST
Category	Multimeter
Language	English