R&S PR100 User Manual
This command line contains two commands. The first command is part
of the DISPlay system and is used to specify the level of the display
backlight. The second command is part of the SYSTem system and
sets the audio volume to maximum.
If the successive commands belong to the same system, having one or
several levels in common, the command line can be abbreviated. To this end,
the second command after the semicolon starts with the level that lies below
the common levels (see also Figure 1). The colon following the semicolon
must be omitted in this case.
Example:
DISPlay:BRIGhtness MAXimum;:DISPlay:DATE:FORMat ddmmyyyy
This command line is represented in its full length and contains two
commands separated from each other by the semicolon. Both
commands are part of the DISPlay command system, ie they have one
level in common.
When abbreviating the command line, the second command begins
with the level below DISPlay. The colon after the semicolon is omitted.
The abbreviated form of the command line reads as follows:
DISPlay:BRIGhtness MAXimum;DATE:FORMat ddmmyyyy
However, a new command line always begins with the complete path.
Example:
DISPlay:BRIGhtness MAXimum
DISPlay:BRIGhtness 0.5
9.1.4 Responses to queries
A query is defined for each setting command unless explicitly specified
otherwise. It is formed by adding a question mark to the associated setting
command. According to SCPI, the responses to queries are partly subject to
stricter rules than in standard IEEE 488.2.
1. Maximum values, minimum values and all further quantities, which are
requested via a special text parameter are returned as numerical
values.
Example: SENSe:FREQuency:STARt? MIN
Response: 9000
2. Numerical values are output without a unit. Physical quantities are
referred to the basic units.
Example: SENSe:FREQuency:STOP? Response:
100000000 for 100 MHz
3. Truth values <Boolean values> are returned as 0 (for OFF) and 1 (for
ON).
Example: OUTPut:IF:STATe? Response: 1
4. Text (character data) is returned in a short form (see also "Parameters"
on page 10).
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