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SCPI Commands for the Counter
VX4101A MultiPaq Instrument User Manual
3–105
(APERture) or for a number of cycles of the input signal (EVENTs). However
some functions don’t have one or both of the APERture and EVENts modes.
Those functions ignore the mode setting.
CONFigure and MEASure commands set the mode to APERture.
NOTE. Event mode with greater than 1 event is invalid for Time Interval with
Delay, Duty Cycle, or Phase Angle measurements.
SENSe:EVENts <# of events>
This command sets the Counter <# of events>. If the SENSe:<function>:MODE
is set to EVENTs, the Counter will make a measurement for a number of cycles
of the input signal. The range of events is 1 to 9E15 step 1, however the
measurement must complete in 9E6 seconds (99 days) to avoid errors.
NOTE. Event mode with greater than 1 event is invalid for Time Interval with
Delay, Duty Cycle, or Phase Angle measurements.
SENSe[1|2|3]:FUNCtion
The SENSe:FUNCtion command selects a function and input channel without
changing most of the Counter setup. The input filtering, coupling, and imped-
ance are not changed by these commands. You must select the filtering, coupling
and impedance that makes sense for the input signal. The input attenuation,
offset, gain, and comparator hysteresis are not changed by these commands.
However, the comparator slopes and thresholds are changed to defaults by these
commands. If INPut:SETup:AUTO (autotrigger) is set to ON or ONCE, the
input attenuation, offset, gain, and comparator hysteresis may change when the
measurement is started. See the CONFigure or MEASure command descriptions
for detail of these commands.
The possible parameters for this command are as follows:
“TOTalize”
“FREQuency”
“FREQuency:RATio <second channel>”
“PERiod”