Keithley 2600B User Manual

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7:
TSP command reference
2600BS-901-01 Rev. C / August 2016 7-41
f
A Boolean flag; this flag is true when the pulse was successfully configured, false when
errors were encountered
msg
A string message; if the f flag is false, msg contains an error message; if it is true, msg
contains a string indicating successful configuration
smu
System SourceMeter
®
instrument channel (for example, smua refers to SMU channel A)
bias
Bias level in amperes
start
Pulse sweep start level in amperes
stop
Pulse sweep stop level in amperes
limit
Voltage limit (for example, compliance) in volts
ton
Pulse on time in seconds
toff
Pulse off time in seconds
points
Number of pulse-measure cycles
buffer
Reading buffer where pulsed measurements will be stored; if this is nil when the function is
called, no measurements will be made when the pulse train is initiated
tag
Numeric identifier to be assigned to the defined pulse train
sync_in
Defines a digital I/O trigger input line; if programmed, the pulse train waits for a trigger input
before executing each pulse
sync_out
Defines a digital I/O trigger output line; if programmed, the pulse train generates a trigger
output immediately before the start of
ton
sync_in_timeout
Specifies the length of time (in seconds) to wait for input trigger; default value is 10 s
sync_in_abort
Specifies whether or not to abort pulse if input trigger is not received; if pulse aborts because
of a missed trigger, a timer timeout message is returned; true or false
Details
Data for pulsed voltage measurements are stored in the reading buffer specified by the buffer input
parameter.
This function configures a logarithmic pulsed current sweep with a voltage measurement at each
point. Measurements are made at the end of the ton time.
The magnitude of the first pulse will be start amperes; the magnitude of the last pulse will be stop
amperes. The magnitude of each pulse in between will be LogStep
n
amperes larger than the
previous pulse, where:
LogStepSize = (log10(stop) - log10(start)) / (points -1)
LogStepn = (n - 1) * (LogStepSize), where n = [2, points]
SourceStepLeveln = antilog(LogStepn) * start
This function does not cause the specified smu to output a pulse train. It simply checks to see if all of
the pulse dimensions can be achieved, and if they can, assigns the indicated tag or index to the
pulse train. The InitiatePulseTest(tag) and InitiatePulseTestDual(tag1, tag2)
functions are used to initiate a pulse train assigned to a valid tag.

Keithley 2600B Specifications

General

Brand	Keithley
Model	2600B
Category	Measuring Instruments
Language	English