R&S NRP
Annex: Remote Control - Commands
1144.1400.12
Annex - I.11
E-2
Logic relationship of command systems SENSe, CALCulate
and UNIT
The following section provides an overview of the measurement procedure of the R&S NRP. The
commands are mentioned as examples. These commands are described in detail in chapter 6.
To perform measurements with the R&S NRP, the user should have a good understanding of the trigger
system and be familiar with the result processing. The measured values delivered by the sensors
cannot be directly queried. As shown in Fig. I-2: Processing of measured values in the R&S NRP, the
raw data is first determined in the sensors taking into account the SENSe settings. It is then transferred
to the CALCulate blocks where the measured values of up to two sensors are processed and made
available to the user in the unit defined by
UNIT
.
CALC[1..8]:MATH:EXPR
- "SENSn"
- "SENSn - SENSm"
- "SENSn / SENSm"
- "REFL"
- "SWR
- "RLOS"
CALC[1..8]:REL
UNIT[1..8]:POW
UNIT[1..8]:RAT
Data output:
output queue in
REMOTE mode
or display
in LOCAL mode
Measured values
("raw data")
CALCulate
UNIT
SENSe
SENS[1..4]:...
Fig. I-2: Processing of measured values in the R&S NRP
Note:
The high-level commands and the SENSe block allow indices to be
specified. These indices refer to the connected sensors (indices 1 to 4) for
the SENSe commands whereas the indices of the high-level commands
select the CALCulate blocks (indices 1 to 8). Depending on the
configuration of the first CALCulate block,
FETCh?
(same meaning as
FETCh1?
) may not deliver the measured value of sensor 1 in contrast to the
above examples. After
*RST
, the first CALCulate block delivers the
measured value of sensor 1 (
CALC1:MATH "(SENS1)"
) and the second
one the measured value of sensor 2, etc. (see command
SYSTem:PRESet
).
