R&S NRP2 - Page 227

Remote Control - Commands
R&S
®
NRP2
209User Manual 1173.9157.02 ─ 03
Example:
Valid command sequence:
FETCh:TSLot:SUM? 577us,8,0,0
FETCh:TSLot:SUM:RELative? 577us,8,0,0
invalid command sequence:
FETCh:BURSt:SUM? 0,0,0
FETCh:TSLot:SUM? 577us,8,0,0
READ:...?
The READ:...? command starts a measurement without further configuration and
returns the measurement result. The parameter list is compared to the current settings
before the measurement is started. If the list does not agree, an SCPI error (-221, Setting
conflict) is returned and the command is aborted. Apart from this check, READ corre-
sponds to the program message INIT:IMM; FETCh[1..8]:...?.
MEASure:...?
The MEASure:...? command combines CONFigure and READ.
Refer to annex chapter C, "Programming Measurements", on page 377 for application
examples to the high level measurement commands.
6.4.2 Basic Commands FETCh? and READ?
FETCh?
The command FETCh? without further keywords and parameter list has a special mean-
ing. While omitting parameters of the parameter list normally means that default values
are used and checked, the current measured value under FETCh? is supplied when it is
valid. If a measured value is not yet available, processing is suspended until a valid result
is available.
Usage:
Query only
READ?
The READ? command without further keywords and parameter list can be compared with
FETCh?. READ? starts a measurement and returns a measured value without checking
the current settings.
Usage:
Query only
6.4.3 Syntactical Structure of High-Level Measurement Commands
The high-level measurement commands can be generally represented as follows:
High-Level Measurement Commands (CONFigure, MEASure, READ and FETCh)