Tektronix KEITHLEY SourceMeter 2606B Reference Manual page 124

Model 2606B System SourceMeter® Instrument Reference Manual
Contact check commands
The following table summarizes the basic contact check commands. For a more complete description
of these commands, refer to the
refer to Contact check connections
Basic contact check commands
Command
flag = smuX.contact.check()
rhi, rlo = smuX.contact.r()
smuX.contact.speed = speed_opt
smuX.contact.threshold = rvalue
Contact check programming example
The following programming example illustrates the setup and command sequence for a typical
contact check measurement. These commands set the contact check speed to fast and the threshold
to 100 Ω. Then, a contact check measurement against the threshold is made. If it fails, a more
accurate contact check measurement is made, and the test is aborted. Otherwise, the output is
turned on, and the test continues.
-- Restore defaults.
smua.reset()
-- Set contact check speed to fast.
smua.contact.speed = smua.CONTACT_FAST
-- Set the contact check threshold to 100 ohms.
smua.contact.threshold = 100
-- Check contacts against threshold.
if not smua.contact.check() then
-- Set speed to slow.
smua.contact.speed = smua.CONTACT_SLOW
-- Get aggregate resistance readings.
rhi, rlo = smua.contact.r()
-- Return contact resistances to the host.
print(rhi, rlo)
-- Terminate execution.
exit()
end
-- Turn output on and continue.
smua.source.output = smua.OUTPUT_ON
2606B-901-01 Rev. C November 2021
TSP command reference
(on page 5-23).
Description
Determine if contact resistance is lower than
threshold.
Measure the aggregate contact resistance.
Set speed_opt to one of the following:
▪
0 or smuX.CONTACT_FAST
▪
1 or smuX.CONTACT_MEDIUM
▪
2 or smuX.CONTACT_SLOW
Set resistance threshold for the contact check
function.
Section 5: Sourcing and measuring
(on page 15-1). For connection information,
5-23