Rohde & Schwarz NRT 1080.9506.02/.62, Руководство по эксплуатации

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NRT Structure and Syntax of the Device Messages
1080.9506.02 3.7 E-6
Common Commands
Common (=device-independent) commands consist of a header preceded by an
asterisk "*" and eventually one or several parameters.
Examples:
*RST RESET, resets the instrument.
*ESE 253
EVENT STATUS ENABLE, sets the bits of the event status enable
registers.
*ESR?
EVENT STATUS QUERY, queries the contents of the event status
register.
Device-specific commands
Hierarchy:
Device-specific commands are of hierarchical structure (see Fig. 3-1). The different
levels are represented by combined headers. Headers of the highest level (root
level) have only one key word. This key word denotes a complete command sys-
tem.
Example:
:SENSe<n>
This key word denotes the command system :
SENSe<n>
.
For commands of lower levels, the complete path has to be specified, starting on
the left with the highest level, the individual key words being separated by a colon
":".
Example:
:SENSe<n>:POWer:POWer:RANGe:LIMit:STATe ON
This command is located on the sixth level of the SENse system. It switches on the
control function for the power indication.
ON
is one of the two possible parameters
of this command.
SENSe<n>
BANDwidth FREQuency POWer
POWer REFLection
RANGe RANGe
AUTO LIMit LOWer UPPer
...
...
STATe DETect
Fig. 3-1 Example for the tree structure of the SCPI command systems: The SENse system
Multiple key
words
Some key words occur on several levels within one command system. Their effect
depends on the structure of the command, i. e. on the position in the command
header they are inserted in.
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