Section 5: Measuring low-resistance devices
Model 2450 Interactive SourceMeter® Instrument User's Manual
5-6
2450-900-01 Rev. A / June 2013
Set up remote communications
This application can be run from the front panel or any of the supported communication interfaces for
the instrument (GPIB, USB, or ethernet).
The rear panel connection locations for the remote communication interfaces are shown in the
following figure. For additional information about setting up remote communications, see
(on page 3-1).
Figure 21: Model 2450 remote interface connections
Setting up the low resistance test using SCPI commands
This example sequence of SCPI commands is designed to take 100 low-resistance measurements by
sourcing current and measuring resistance. You must make the appropriate changes so that it will run
in your programming environment.
Send the following commands for this example application:
Command
Description
*RST
TRIG:LOAD:LOOP:SIMP 100
SOUR:FUNC CURR
SENS:FUNC "RES"
SENS:RES:MODE AUTO
SENS:RES:OCOM ON
SYST:RSEN ON
DISP:SCR PLOT
OUTP ON
INIT
*WAI
TRAC:DATA? 1, 100, "defbuffer1", READ, REL
OUTP OFF
•
Reset the Model 2450.
•
Configure the Simple Loop trigger template to take 100
readings.
•
Set the source to output current.
•
Set to measure resistance.
•
Set to measure with autorange enabled.
•
Enable offset compensation.
•
Set to use 4-wire sense mode.
•
Show the Data Trend swipe screen.
•
Turn on the output.
•
Initiate readings.
•
Wait until finished.
•
Read the resistance and time values from debuffer1.
•
Turn off the output.
