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SCPI Commands for the Counter
VX4101A MultiPaq Instrument User Manual
3–85
INPut commands which manually set the input channel hardware other than
COUPling, IMPedance and FILTering will remain in effect when a measurement
is initiated only if autosetup is set to OFF.
The time a measurement is taken is influenced by the ARM subsystem.
INPut[1|2]:ATTenuation?
Without one of the optional parameters, this command moves to the output-buff-
er the current setting of the input block signal attenuator for the specified
channel. If one of the optional parameters is used, the default, minimum or
maximum value for attenuation is moved to the output-buffer. The possible
values returned are 1, 10 or 100.
INPut[1|2]:COMParator[1|2]:LEVel[:ABSolute]?
Without one of the optional arguments, this command moves the current
threshold level setting to the output buffer. The setting is of the currently selected
channel and comparator. If one of the optional arguments is included, the
MINimum, MAXimum or DEFault value for level is moved to the output buffer
instead. The value returned is calculated as follows:
VL = S*G*(VLR/A + VO)
INPut[1|2]:COMParator[1|2]:LEVel:RELative?
The threshold level corrected for attenuation, slope, gain and offset of the
channel and comparator selected is moved to the output buffer. If the level was
not previously set by the relative command, the value returned is calculated by
the formula:
VLR = A((S*VL)/G – VO)
where
VLR = comparator trigger level relative to the input
A = current attenuator setting
S = slope, 1 for positive, –1 for negative
VL = comparator level previously set
G = current gain setting
VO = current offset setting (converted from a relative offset if necessary)
INPut[1|2]:COMParator[1|2]:HYSTeresis[:ABSolute]?
Without one of the optional arguments, this command moves to the output-buffer
the current setting in volts of the hysteresis of the currently selected channel and
comparator. If one of the optional arguments is included, the MINimum,
MAXimum or DEFault value for hysteresis is moved to the output-buffer
instead.
Query Response