Remote Control
R&S
®
ZNC
341
User Manual 1173.9557.02 ─ 13
5.2.3.2
Boolean Parameters
Boolean parameters represent two states. The
ON
state (logically true) is represented
by ON or a numerical value different from 0. The
OFF
state (logically false) is represented
by
OFF
or the numerical value 0. A query responds with 0 or 1.
Example:
Setting command:
SWEep:TIME:AUTO ON
Query:
SWEep:TIME:AUTO?
returns 1
5.2.3.3
Text Parameters
Text parameters observe the syntax rules for mnemonics, i.e. they can be entered using
a short or long form. Like any parameter, they have to be separated from the header by
a white space. In the case of a query, the short form of the text is provided.
Example:
Setting command:
TRIGger:SOURce EXTernal
Query:
TRIGger:SOURce?
returns
EXT
5.2.3.4
Strings
Strings must always be entered within single or double quotation marks (' or ).
Example:
CONFigure:CHANnel:NAME "Channel 4"
or
CONFigure:CHANnel:NAME 'Channel 4'
5.2.3.5
Block Data Format
Block data is a transmission format which is suitable for the transmission of large amounts
of data. A command using a block data parameter with definite length has the following
structure:
Example:
HEADer:HEADer #45168xxxxxxxx
The hash symbol # introduces the data block. The next number indicates how many of
the following digits describe the length of the data block. In the example the 4 following
digits indicate the length to be 5168 bytes. The data bytes follow. During the transmission
of these data bytes all End or other control signs are ignored until all bytes are transmitted.
A #0 combination introduces a data block of indefinite length. The use of the indefinite
format requires a NL^END message to terminate the data block. This format is useful
when the length of the transmission is not known or if speed or other considerations
prevent segmentation of the data into blocks of definite length.
5.2.3.6
Overview of Syntax Elements
:
The colon separates the mnemonics of a command. In a command line the separating sem-
icolon marks the uppermost command level.
;
The semicolon separates two commands of a command line. It does not alter the path.
Messages
