R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Remote Control – Basics
Structure and Syntax of the Device Messages
If the successive commands belong to the same system, having one or several levels
in common, the command line can be abbreviated. For that purpose, the second
command after the semicolon starts with the level that lies below the common levels
(see also Fig. 5.1). The colon following the semicolon must be omitted in this case.
Example:
CALL IBWRT(analyzer%, "SENSe:FREQuency:STARt 1E6;:SENSe:
FREQuency:STOP 1E9")
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
SENSe command system, subsystem FREQuency, i.e. they have two common
levels.
When abbreviating the command line, the second command begins with the level
below SENSe:FREQuency. The colon after the semicolon is omitted.
The abbreviated form of the command line reads as follows:
CALL IBWRT(analyzer%, "SENSe:FREQuency:STARt 1E6;STOP 1E9")
However, a new command line always begins with the complete path.
Example:
CALL IBWRT(analyzer, "SENSe:FREQuency:STARt 1E6")
CALL IBWRT(analyzer%, "SENSe:FREQuency:STOP 1E9")
5.6.4 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. The requested parameter is transmitted without header.
Example: INPut:COUPling?
Response: DC
2. Maximum values, minimum values and all further quantities, which are requested
via a special text parameter are returned as numerical values.
Example: SENSe:FREQuency:STOP? MAX
Response: 3.5E9
3. Numerical values are output without a unit. Physical quantities are referred to the
base units or to the units set using the Unit command.
Example: SENSe:FREQuency:CENTer?
Response: 1E6 for 1 MHz
4. Truth values are returned as 0 (for OFF) and 1 (for ON).
Example: SENSe:BANDwidth:AUTO?
Response: 1 for ON
5. Text (character data) is returned in a short form.
Example: SYSTem:COMMunicate:SERial:CONTrol:RTS?
Response (for standard): STAN
Operating Manual 1313.9681.12 - 01 5.13