8 Agilent N5181A/82A MXG Signal Generators SCPI Command Reference
SCPI Basics
SCPI Basics
Numeric Parameters
Numeric parameters are used in both common and subsystem commands. They accept all commonly
used decimal representations of numbers including optional signs, decimal points, and scientific
notation.
If a signal generator setting is programmed with a numeric parameter which can only assume a finite
value, it automatically rounds any entered parameter which is greater or less than the finite value.
For example, if a signal generator has a programmable output impedance of 50 or 75 ohms, and you
specified 76.1 for the output impedance, the value is rounded to 75. The following are examples of
numeric parameters:
Extended Numeric Parameters
Most subsystems use extended numeric parameters to specify physical quantities. Extended numeric
parameters accept all numeric parameter values and other special values as well.
The following are examples of extended numeric parameters:
Extended numeric parameters also include the following special parameters:
100 no decimal point required
100. fractional digits optional
−1.23 leading signs allowed
4.56E<space>3 space allowed after the E in exponential
−7.89E−001 use either E or e in exponential
+256 leading + allowed
.5 digits left of decimal point optional
100 any simple numeric value
1.2GHz GHz can be used for exponential (E009)
200MHz MHz can be used for exponential (E006)
−100mV negative 100 millivolts
10DEG 10 degrees
DEFault resets the parameter to its default value
UP increments the parameter
DOWN decrements the parameter
MINimum sets the parameter to the smallest possible value
MAXimum sets the parameter to the largest possible value
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