Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-151
Example
format.asciiprecision = 10
x = 2.54
printnumber(x)
format.asciiprecision = 3
printnumber(x, 2.54321, 3.1)
Configure the ASCII precision to 10 and set x to
2.54.
Read the value of x based on these settings.
Change the ASCII precision to 3.
View how the change affects the output of x and
some numbers.
Output:
2.540000000e+00
2.54e+00, 2.54e+00, 3.10e+00
Also see
format.asciiprecision (on page 7-91)
format.byteorder
(on page 7-92)
format.data
(on page 7-93)
print()
(on page 7-148)
printbuffer()
(on page 7-149)
PulseIMeasureV()
This KIPulse factory script function performs a specified number of pulse I, measure V cycles.
Type TSP-Link accessible
Affected by Where saved Default value
Function No
Usage
PulseIMeasureV(smu, bias, level, ton, toff, points)
smu
System SourceMeter
®
instrument channel (set to smua)
bias
Bias level in amperes
level
Pulse level in amperes
ton
Pulse on time in seconds
toff
Pulse off time in seconds
points
Number of pulse-measure cycles
Details
Data for pulsed voltage measurements, current levels, and timestamps are stored in smua.nvbuffer1.
If any parameters are omitted or nil, the operator is prompted to enter them using the front panel.
To perform the specified number of pulse I, measure V cycles, this function:
1. Sets the smu to output bias amperes and dwell for toff seconds.
2. Sets the smu to output level amperes and dwell for ton seconds.
3. Performs voltage measurement with source at level amperes.
4. Sets the smu to output bias amperes for toff seconds.
5. Repeats steps 2 through 4 for all remaining points pulse-measure cycles.

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English