Creating Valid Commands; Special Characters In Commands - Keysight N9000A Manual

Creating Valid Commands

Commands are not case-sensitive, and there are often many different ways of writing a particular command. These are
examples of valid commands for a given command syntax:
Command Syntax
:[SENSe:]BANDwidth[:RESolution] <freq>
:MEASure:SPECtrum[n]?
[:SENSe]:DETector[:FUNCtion]
NEGative|POSitive|SAMPle
:INITiate:CONTinuous ON|OFF|1|0

Special Characters in Commands

Special Character 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 will
be executed even if they are omitted.
SCPI Programming Fundamentals
Sample Valid Commands
The following sample commands are all identical. They all cause the same
result.
•
:Sense:Band:Res 1700
•
:BANDWIDTH:RESOLUTION 1.7e3
•
:sens:band 1.7KHZ
•
:SENS:band 1.7E3Hz
•
:band 1.7kHz
•
:bandwidth:RES 1.7e3Hz
•
:MEAS:SPEC?
•
:Meas:spec?
•
:meas:spec3?
The number 3 in the last meas example causes it to return different results
than the commands above it. See the command description for more
information.
•
:DET:FUNC neg
•
:Detector:Func Pos
The sample commands below are identical.
•
:INIT:CONT ON
•
:init:continuous 1
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
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SCPI Language Basics