Tektronix Keithley SourceMeter 2470 Reference Manual

2470
High Voltage SourceMeter Instrument Reference Manual Section 14:
TSP command reference
2470-901-01 Rev. A / May 2019 14-167
Also see
Ranges (on page 4-37)
smu.source.autorange (on page 14-151)
smu.source.readback
This attribute determines if the instrument records the measured source value or the configured source value
when making a measurement.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
Restore configuration
Instrument reset
Power cycle
Source configuration list
Function change
Configuration script
Source configuration list
smu.ON
Usage
state = smu.source.readback
smu.source.readback = state
state
Disable readback: smu.OFF
Enable readback: smu.ON
Details
When source readback is off, the instrument records and displays the source value you set. When
you use the actual source value (source readback on), the instrument measures the actual source
value immediately before making the device under test measurement.
Using source readback results in more accurate measurements, but also a reduction in measurement
speed.
When source readback is on, the front-panel display shows the measured source value and the buffer
records the measured source value immediately before the device-under-test measurement. When
source readback is off, the front-panel display shows the configured source value and the buffer
records the configured source value immediately before the device-under-test measurement.
Example
reset()
testDataBuffer = buffer.make(100)
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.measure.func = smu.FUNC_DC_CURRENT
smu.source.readback = smu.ON
smu.source.level = 10
smu.measure.count = 100
smu.source.output = smu.ON
smu.measure.read(testDataBuffer)
smu.source.output = smu.OFF
printbuffer(1, 100, testDataBuffer.sourcevalues,
testDataBuffer)
Reset the instrument to default
settings.
Make a buffer named
testDataBuffer that can hold 100
readings.
Set source function to voltage.
Set the measurement function to
current.
Set read back on.
Set the instrument to take 100
readings.
Turn the output on.
Take the measurements.
Turn the output off.
Get the source values and
measurements from the buffer.

Tektronix Keithley SourceMeter 2470 Specifications

General

Brand	Tektronix
Model	Keithley SourceMeter 2470
Category	Measuring Instruments
Language	English