Points <N - Keithley 2500 User Manual

17-70 SCPI Command Reference
POINts <n>
:SOURce[1]:SWEep:POINts <n>
:SOURce2:SWEep:POINts <n>
Parameters
Query
Description
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<n> = 1 to 3000
MINimum
MAXimum
DEFault
:POINts?
:POINts? DEFault
:POINts? MINimum
:POINts? MAXimum
The :POINts command specifies the total number of source and measure
points in a sweep. For a linear sweep, the source and measure points are
equally spaced (stepped) between the start level and the stop level. For a
log sweep, the source and measure points are equally spaced on a loga-
rithmic scale. Note that the start and stop levels are source and measure
points.
Step size for a linear sweep can be calculated as follows:
Step Size = (Stop - Start) / (Points - 1)
Step Size = Span / (Points -1)
Step size for a logarithmic sweep can be calculated as follows:
log 10 (Stop)- log10 (Start)
Log Step Size = ---------------------------------------------------------------- -
An alternate way to set the source and measure points in a sweep is to
specify the step size using the :STEP command.
Note that the :POINts and :STEP commands are coupled. Changing the
number of source and measure points also changes the step size. Con-
versely, changing the step size changes the number of source and mea-
sure points.
Models 2500 and 2502 User's Manual
Set number of points for source 1
Set number of points for source 2
Specify number of source-measure
points
1
3000
3000
Query number of sweep points
Query *RST default number of sweep points
Query lowest allowable number of sweep
points
Query highest allowable number of sweep
points
Points - 1