Set Up The Solar Cell I-V Sweep Using Scpi Commands - Tektronix Keithley SourceMeter 2450 User Manual

Model 2450 SourceMeter® Instrument User's Manual
Figure 52: Example of solar cell measurements on the front-panel graph

Set up the solar cell I-V sweep using SCPI commands

This example sequence of SCPI commands generates an I-V sweep on a solar cell. You may need to
make changes so that this code will run in your programming environment.
In this example, the voltage is swept from 0 V to 0.55 V in 56 steps. The resulting solar cell current is
measured. The current and voltage measurements are stored in default buffer 1 (defbuffer1).
Send the following commands for this example application:
Command
*RST
SENS:FUNC "CURR"
SENS:CURR:RANG:AUTO ON
SENS:CURR:RSEN ON
SOUR:FUNC VOLT
SOUR:VOLT:RANG 2
SOUR:VOLT:ILIM 1
SOUR:SWE:VOLT:LIN 0, 0.55, 56, 0.1
:INIT
*WAI
TRAC:DATA? 1, 56, "defbuffer1", SOUR, READ
2450-900-01 Rev. E / August 2019
Section 9: Measuring I-V characteristics of solar cells
Description

Reset the 2450.

Set to measure current.

Set to measure with autorange enabled.

Set to use 4-wire sense mode.

Set to source voltage.

Set to the 2 V source range.

Set the current limit to 1 A.

Set to sweep voltage from 0 to 0.55 V in 56 steps
with a 0.1 s delay.

Initiate the sweep.

Wait until the sweep is finished.

Read the source and measure values from
defbuffer1.
9-7