R&S ZVL Command Reference
Instrument-Control Commands
Operating Manual 1303.6580.32-05
542
SCPI, Command Types
Device-specific, command or query
Example:
SYST:DISP:FPAN ON
Activates the display.
SYSTem:DISPlay:UPDate <Boolean> | ONCE
Switches the display on or off while the analyzer is in the remote state. The command has no effect while
the analyzer is in the Local operating state.
Switching off the display speeds up the measurement. This command may have an impact on the
update of trace and channel settings; see SYSTem:SETTings:UPDate.
<Boolean>
ON | OFF – Switch the display on or off. If the display is switched on, the analyzer
shows the diagrams and traces like in manual control.
ONCE
Switch the display on and show the current trace. This parameter can be used for
occasional checks of the measurement results or settings. The measurement is
continued, however, the measurement results are not updated. Compared to the ON
setting, ONCE does not slow down the measurement speed.
*RST value OFF
SCPI,
Command
Types
Device-specific, command or query
Example:
SYST:DISP:UPD ON
Switch the display on to view the traces and diagrams.
SYSTem:ERRor[:NEXT]?
Queries and at the same time deletes the oldest entry in the error queue. Operation is identical to that of
STATus:QUEue[:NEXT]?
The entry consists of an error number and a short description of the error. Positive error numbers are
instrument-dependent. Negative error numbers are reserved by the SCPI standard; see section Error
Messages. If the error queue is empty, the error number 0, "No error", is returned.
*RST value
–
SCPI, Command
Types
Confirmed, query only
Example:
SYST:ERR?
Query the oldest entry in the error queue. 0,"No error" is returned if the error
queue is empty.
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