Special Characters In Commands; Parameters In Commands - Agilent Technologies X Series User Manual

Special Characters in Commands

Special
Character
|
[ ]
< >
{ }

Parameters in Commands

There are four basic types of parameters: booleans, keywords, variables and arbitrary block program
data.
OFF|ON|0|1
(Boolean)
keyword
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Meaning
A vertical stroke between
parameters indicates alternative
choices. The effect of the command is
different depending on which
parameter is selected.
A vertical stroke between keywords
indicates identical effects exist for
both keywords. The command
functions the same for either
keyword. Only one of these keywords
is used at a time.
keywords in square brackets are
optional 
when composing the 
command. These implied keywords
are executed even if they are omitted.
Angle brackets around a word, or
words, indicates they are not to be
used literally in the command. They
represent the needed item.
Parameters in braces can optionally
be used in the command either not at
all, once, or several times.
This is a two state boolean-type parameter. The numeric value 0 is equivalent to OFF.
Any numeric value other than 0 is equivalent to ON. The numeric values of 0 or 1 are
commonly used in the command instead of OFF or ON. Queries of the parameter
always return a numeric value of 0 or 1.
The keywords that are allowed for a particular command are defined in the command
syntax description.
A Brief Introduction to the SCPI Language
Example
Command: 
TRIGger:SOURce EXTernal|INTernal|LINE
The choices are external, internal, and line.
Ex: TRIG:SOURCE INT
is one possible command choice.
Command: 
SENSe:BANDwidth|BWIDth:
OFFSet
Two identical commands are: Ex1:
SENSE:BWIDTH:OFFSET Ex2: SENSE:BAND:OFFSET
Command:
[SENSe:]BANDwidth[:RESolution]:AUTO
The following commands are all valid and have identical
effects:
Ex1: bandwidth:auto
Ex2: band:resolution:auto
Ex3: sense:bandwidth:auto
Command:
SENS:FREQ <freq>
In this command example the word <freq> should be
replaced by an actual frequency.
Ex: SENS:FREQ 9.7MHz.
Command:
MEASure:BW <freq>{,level}
A valid command is:
meas:BW 6 MHz, 3 dB, 60 dB
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