9-10 Programmer’s Guide
Introduction to SCPI
Parameter Types
Parameter Types
Parameters are used in many commands. The analyzer uses several
types of parameters with different types of commands and queries. When
a parameter is sent with a SCPI command, it must be separated from the
command by a space. If more than one parameter is sent, they are
separated from each other by commas.
Numeric Parameters
Most subsystems use numeric parameters to specify physical quantities.
Simple numeric parameters accept all commonly used decimal
representations of numbers, including optional signs, decimal points, and
scientific notation. If an instrument setting programmed with a numeric
parameter can only assume a finite number of values, the instrument
automatically rounds the parameter. In addition to numeric values, all
numeric parameters accept MAXimum and MINimum as values (note that
MAXimum and MINimum can be used to set or query values).
<num> is used in this document to denote a numeric parameter.
An example is the command to set the stop frequency for a
measurement. The first command below sets the stop frequency to a
specific value. The second command below sets the stop frequency to its
maximum possible value (1300 MHz for 8712ET/ES or 3000 MHz for
8714ET/ES).
OUTPUT 716;"SENSE1:FREQUENCY:STOP 1300 MHZ"
OUTPUT 716;"SENSE1:FREQUENCY:STOP MAX"
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