6: SCPI command reference Model 2450 Interactive SourceMeter® Instrument
6-58 2450-901-01 Rev. B/September 2013
[:SENSe[1]]:<function>:RSENse
This command selects local (2-wire) or remote (4-wire) sensing.
Type Affected by Where saved Default value
Instrument reset
Power cycle
Measure configuration list
Measure configuration list
Usage
[:SENSe[1]]:<function>:RSENse <b>
[:SENSe[1]]:<function>:RSENse?
The measurement function to which this setting applies:
• Current: CURRent[:DC]
• Resistance: RESistance
• Voltage:
Disable remote sensing (2-wire): 0 or OFF
Enable remote sensing (4-wire):
or
Details
This command determines if 2-wire (local) or 4-wire (remote) sensing is used.
When you use 4-wire sensing, voltages are measured at the device under test (DUT). For the source voltage, if
the sensed voltage is lower than the programmed amplitude, the voltage source increases the voltage until the
sensed voltage is the same as the programmed amplitude. This compensates for IR drop in the output test leads.
Using 4-wire sensing with voltage measurements eliminates any voltage drops that may be in the test leads
between the Model 2450 and the DUT.
When you are using 2-wire sensing, voltage is measured at the output connectors.
When you are measuring resistance, you can enable 4-wire sensing to make 4-wire resistance measurements.
When the output is off, 4-wire sensing is disabled and the instrument uses 2-wire sense, regardless of the sense
setting. When the output is on, the selected sense setting is used.
Example
Set the remote sense for voltage
Also see
Two-wire local sense connections (on page 2-75)
Four-wire remote sense connections (on page 2-76)