Keithley 6482 Reference Manual page 238

Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
SPACing <name>
Parameters
Query
Description
STARt <n>
STOP <n>
Parameters
Query
Description
6482-901-01 Rev. A / August 2012
:SOURce[1]:SWEep:SPACing <name>Select scale for source 1 sweep
:SOURce2:SWEep:SPACing <name>Select scale for source 2 sweep
<name> = LINear
LOGarithmic
:SPACing?
These commands are used to select the scale for the sweep. With LINear
selected, the source and measure points in the sweep will be performed on a
linear scale. With LOGarithmic selected, the source and measure points will be
performed on a logarithmic scale.
:SOURce[1]:VOLTage:STARt <n>Specify source 1 start voltage level
:SOURce[1]:VOLTage:STOP <n>Specify source 1 stop voltage level
:SOURce2:VOLTage:STARt <n> Specify source 2 start voltage level
:SOURce2:VOLTage:STOP <n> Specify source 2 stop voltage level
<n> = -30 to 30
DEFault
MINimum
MAXimum
:STARt?
:STARt? DEFault
:STARt? MINimum
:STARt? MAXimum
:STOP?
:STOP? DEFault
:STOP? MINimum
:STOP? MAXimum
These commands are used to specify the start and stop levels for a sweep. If
using a fixed (manual) source range, the sweep will be performed using a source
range that will accommodate all source values (best fixed range). You can use
source autorange if sweeping through one or more source ranges.
When the sweep is started, the source will output the specified start level and,
after the delay period of the SDM cycle, a measurement is performed.
The sweep continues until the source outputs the specified stop level. At this
level, the instrument again performs another measurement (after the SDM delay)
and then stops the sweep.
The source and measure points in a sweep can be set by specifying a step size,
or by specifying the number of source and measure points in the sweep. Refer to
"STEP <n>," page Section 16-46,
:STARt and :STOP are coupled to :CENTer and :SPAN. Thus, when start and stop
values are changed, the values for center and span are affected as follows:
Center = (Start + Stop) / 2
Span = Stop - Start
Return to Section Topics
Linear scale
Logarithmic scale
Query scale for sweep
Set source level (volts)
0 V
-30 V
+30 V
Query start level for sweep
Query *RST default level
Query lowest allowable level
Query highest allowable level
Query start level for sweep
Query *RST default level
Query lowest allowable level
Query highest allowable level
and "POINts <n>," page Section 16-47.
Section 16: SCPI Command Reference
16-45