Command Reference
R&S
®
ZNL/ZNLE
581
User Manual 1178.5966.02 ─ 07
10.5.1
Special Terms and Notation
This section explains the meaning of special syntax elements used in the SCPI com-
mand reference sections.
The following information is provided in the reference sections:
●
Complete command syntax and parameter list
●
Description of the command and its relationship with other commands
●
List and description of the parameters with their numerical ranges, default values
and default units
●
Supported command types (setting command, query). If nothing is mentioned, the
command can be used to write
and
read data (setting command and query).
●
Program example
The SCPI conformance information is stated at the beginning of each section. Unless
otherwise stated, the commands are device-specific.
The commands are generally arranged in alphabetical order. Commands with similar
function (e.g. a pair of
...STARt
and
...STOP
commands) may be described in a
common section, which in some instances disrupts the strict alphabetical order.
10.5.1.1
Upper/Lower Case
Upper/lower case characters characterize the long and short form of the mnemonics in
a command. The short form consists of all upper-case characters, the long form of all
upper case plus all lower case characters. It is recommended to use either the short
form or the long form; mixed forms are not always recognized. The R&S
ZNL/ZNLE
itself does not distinguish upper case and lower case characters.
10.5.1.2
Special Characters
The following special characters are frequencly used in the command description:
●
|
A vertical stroke characterizes alternative parameter settings. Only one of the
parameters separated by | must be selected.
●
[ ]
Mnemonics in square brackets can be omitted when composing the command
header. The complete command must be recognized by the instrument for reasons
of compatibility with the SCPI standard. Parameters in square brackets are optional
as well. They may be used in some application contexts, omitted in others.
●
{ }
Braces or curly brackets enclose one or more parameters that may be included
zero or more times.
10.5.1.3
Parameters
Many commands are supplemented by a parameter or a list of parameters. Parame-
ters either provide alternative options (setting a or setting b or setting c ..., see special
character "|"), or they form a list separated by commas (setting x, y).
●
<Parameter1>, <Parameter2>...:
In the command tables and lists, parameters are
generally described by a name (Parameter1, Parameter2...) written in angle brack-
VNA Command Reference
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