R&S PR100 User Manual
consist of several keywords. Queries are formed by directly appending a
question mark to the header.
9.1.1 Common Command Structure
Common commands consist of a header preceded by an asterisk "*" and one
or several parameters, if any.
Examples:
*RST RESET, resets the device
*ESE 253 EVENT STATUS ENABLE, sets the bits of the event status
enable register to 253
*ESR? EVENT STATUS QUERY, queries the contents of the
event status register.
9.1.2 Device-Specific Command Structure
Hierarchy
Device-specific commands are of hierarchical structure (see Figure 1).
Commands of the highest level (root level) consist of only one keyword. This
keyword denotes a complete command system.
Example:
SYSTem This keyword denotes the command system SYSTem.
For commands of lower levels, the complete path has to be specified, starting
on the left with the highest level, the individual keywords being separated by a
colon ":".
Example:
SENSe:FREQuency:STARt 118 MHz
This command lies in the third level of the SENSe system. It sets the
starting frequency of a scan to 118 MHz.
Figure 1: Tree-Structure example of SENSe system
Keywords that occur at several levels within one command system can have
different effects.
Example:
MMEMory:CATalog?
List all files in the current directory.
SYSTe
DATE COMMunicate
GPIB LAN
SOCKe
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