R&S NRP18S Series User Manual page 79

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R&S NRP18S-xx
Figure 8-5: User data content format
y = Number of values which follow the header
x = Number of digits of y
●
Result type (always 3 bytes, one of 'AVG', 'MIN', 'MAX' or 'RND')
●
Designator for the contained data type with the size of 1 byte
Currently, the only possible designator is 'f' for 4-byte IEEE754 float data type, little
endian
●
Single digit which tells the number of following digits that are taken as the number
of contained float values
●
As many digits as the number of digits for user data specified ('x'). These digits are
interpreted as the number of values ('y') (not number of bytes) which follow the
header
●
Measurement result values in the format that is described by the data type (cur-
rently IEEE754 float only)
If no
cuting the measurement, the user data content is finished here. In case that auxiliary
measurands have been selected, the above section is repeated for every auxiliary
measurand. The user data content looks like:
AVGf3100...(400byte AVG values)...MINf3100...(400byte min.
values)...MAXf3100...(400byte max. values)...
Where each of
...(400byte AVG values)...
...(400byte min. values)...
...(400byte max. values)...
Stands for 400 bytes as the equivalent of 100 float values.
Keep in mind that this is only the user data content. It is embedded in the arbitrary
block response data response of the [SENSe<Sensor>:]TRACe:DATA query.
Example:
Usage:
User Manual 1178.3686.02 ─ 05
[SENSe<Sensor>:]AUXiliary
TRAC:DATA?
Query only
Remote Control Commands
Configuring the Measurement Modes
measurands have been activated before exe-
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