17-68 SCPI Command Reference Models 2500 and 2502 User’s Manual
(best fixed range). You can use source auto range 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 per-
formed.
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 17-69, and “POINts <n>,”
page 17-70.
: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
CENTer <n>
SPAN <n>
:SOURce[1]:VOLTage:CENTer <n> Specify center point of source 1 sweep
:SOURce[1]:VOLTage:SPAN <n> Specify span of source 1 sweep
:SOURce2:VOLTage:CENTer <n> Specify center point of source 2 sweep
:SOURce2:VOLTage:SPAN <n> Specify span of source 2 sweep
Parameters <n> = -200 to 200 Set SPAN source level (volts)
-100 to 100 Set CENT source level (volts)
DEFault 0V
MINimum -200V (SPAN), -100V (CENT)
MAXimum +200V (SPAN), +100 (CENT)
Query :CENTer? Query center point for sweep
:CENTer? DEFault Query *RST default level
:CENTer? MINimum Query lowest allowable level
:CENTER? MAXimum Query highest allowable level
:SPAN? Query span for sweep
:SPAN? DEFault Query *RST default level
:SPAN? MINimum Query lowest allowable level
:SPAN? MAXimum Query highest allowable level
Description A sweep can be configured by specifying center and span parameters.
By specifying a center point, you can sweep through the operating point
of a device. The span determines the sweep width with the operating
point at the center of the sweep.
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