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Operating Manual 1302.6163.12 - 03
5.11
R&S ESU
Remote Control – Basics
Structure and Syntax of the Device Messages
Some key words occur in several levels within one command system. Their effect
depends on the structure of the command, that is to say, at which position in the
header of a command they are inserted.
Examples:
SOURce:FM:POLarity NORMal
This command contains key word POLarity in the third command level. It defines the
polarity between modulator and modulation signal.
SOURce:FM:EXTernal:POLarity NORMal
This command contains key word POLarity in the fourth command level. It defines
the polarity between modulation voltage and the resulting direction of the modulation
only for the external signal source indicated.
Optional key words
Some command systems permit certain key words to be optionally inserted into the
header or omitted. These key words are marked by square brackets in the descrip-
tion. The full command length must be recognized by the instrument for reasons of
compatibility with the SCPI standard. Some commands are considerably shortened
by these optional key words.
Example:
[SENSe]:BANDwidth[:RESolution]:AUTO
This command couples the resolution bandwidth of the instrument to other parame-
ters. The following command has the same effect:
BANDwidth:AUTO
Long and short form
The key words feature a long form and a short form. Either the short form or the long
form can be entered, other abbreviations are not permissible.
Example:
STATus:QUEStionable:ENABle 1= STAT:QUES:ENAB 1
Parameter
The parameter must be separated from the header by a "white space". If several
parameters are specified in a command, they are separated by a comma ",". A few
queries permit the parameters MINimum, MAXimum and DEFault to be entered. For
a description of the types of parameter, refer to section
Example:
An optional key word must not be omitted if its effect is specified in detail by a
numeric suffix.
The short form is marked by upper-case letters, the long form corresponds to the
complete word. Upper-case and lower-case notation only serve the above pur-
pose, the instrument itself does not make any difference between upper-case and
lower-case letters.
Содержание ESU Series
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Страница 439: ...R S ESU Remote Control Basics Status Reporting System 5 34 Operating Manual 1302 6163 12 03...
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