Keithley 6430 Instruction Manual page 384

17-74 SCPI Command Reference
:STEP <n>
:SOURce[1]:CURRent:STEP <n>
:SOURce[1]:VOLTage:STEP <n>
Parameters
Query
Description
NOTE
<n> = -210e-3 to 210e-3
-420 to 420
DEFault
MINimum
MAXimum
:STEP
:STEP? DEFault
:STEP? MINimum
:STEP? MAXimum
This command is used to specify a step size for a linear sweep. When the
sweep is started, the source level changes in equal steps from the start level
to the stop level. A measurement is performed at each source step (including
the start and stop levels).
This command cannot be used for a logarithmic sweep. Use the :POints command to
set the source-measure points for a log sweep.
To avoid a setting conflicts error, make sure the step size is greater than the
start value and less than the stop value.
The number of source-measure points in a linear sweep can be calculated as
follows:
Points = [(Stop - Start) / Step] + 1
Points = (Span / Step) + 1
An alternate way to set the source-measure points in a linear sweep is to
simply specify the number of source-measure points in the sweep using the
:POINts command.
Note that the :STEP and :POINts commands are coupled. Changing the step
size also changes the number of source-measure points. Conversely, chang-
ing the number of source-measure points changes the step size.
Specify step size (current sweep)
Specify step size (voltage sweep)
Set I-Source level (amps)
Set V-Source level (volts)
0A or 0V
-210e-3A or -420V
+201e-3A or +420V
Query step size for sweep
Query *RST default level
Query lowest allowable level
Query highest allowable level