Keithley 2600a series User Manual

2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-147
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
smuX.trigger.source.linearY
X = SMU channel (a or b)
Y = SMU measure function (i or v)
Where: v = voltage, i = current
Function Configures a linear source sweep.
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage smuX.trigger.source.lineari(startvalue, endvalue, points)
smuX.trigger.source.linearv(startvalue, endvalue, points)
startvalue Source value of the first point.
endvalue Source value of the last point.
points The number of points used to calculate the step size.
Remarks • This function configures a source action to be a linear source sweep in a subsequent sweep.
• During the sweep, the source will generate a uniform series of ascending or descending voltage
or current changes called steps. The number of source steps is one less than the number of
sourced data points.
• The points parameter does not set the number of steps in a sweep. It is only used to calculate
source values within a subsequent sweep. If the subsequent sweep has more points than
specified here, the source will restart at the beginning. If the subsequent sweep has fewer points
than specified here, endvalue will not be reached during the sweep.
• In cases where the first sweep point is non-zero, it may be necessary to pre-charge the circuit so
that the sweep will return a stable value for the first measured point without penalizing remaining
points in the sweep.
• With linear sweeps it is acceptable to maintain a fixed source resolution over the entire sweep.
To prevent source range changes during the sweep (especially when sweeping through 0.0), set
the source range to a fixed range appropriate for the larger of either startvalue or endvalue.
• The SMU will only store the most recent configured source action. The last call to
smuX.trigger.source.linearY, smuX.trigger.source.listY, or
smuX.trigger.source.logY is used for the source action.
Also see smuX.trigger.source.listY, smuX.trigger.source.logY
smuX.trigger.source.listY
X = SMU channel (a or b)
Y = SMU measure function (i or v)
Where: v = voltage, i = current
Function Configures an array-based source sweep.
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage smuX.trigger.source.listi(sweeplist)
smuX.trigger.source.listv(sweeplist)
sweeplist The array of source values.
Remarks • This function configures the source action to be a list sweep in a subsequent sweep.
• During the sweep, the source will output the sequence of source values given in the sweeplist
array.
• If the subsequent sweep has more points than given in sweeplist, the source will restart at the
beginning of the list for the extra points. If the subsequent sweep has less points than given in
sweeplist, the extra values will be ignored.
• In cases where the first sweep point is non-zero, it may be necessary to pre-charge the circuit so
that the sweep will return a stable value for the first measured point without penalizing remaining
points in the sweep.
• The SMU will only store the most recent configured source action. The last call to
smuX.trigger.source.linearY, smuX.trigger.source.listY, or
smuX.trigger.source.logY is used for the source action.
Also see smuX.trigger.source.linearY, smuX.trigger.source.logY

Keithley 2600a series Specifications

General

Brand	Keithley
Model	2600a series
Category	Measuring Instruments
Language	English