15 Data transmission
15.5 Data structure
FLUXUS G809
2020-06-25, UMFLUXUS_G809V2-2EN
132
Depending on the storage interval, one data line per activated measuring channel is transmitted. The line "
???
" will be
transmitted if there are no measured values available for the storage interval.
The following data columns can be transmitted:
Online transmission
Columns will be created for all quantities appearing during the measurement. The columns
Q_POS
and
Q_NEG
remain
empty if the totalizers are deactivated.
As the totalizers cannot be activated for the physical quantity "flow velocity", these columns will not be generated.
Offline transmission
During the offline transmission of data, columns will only be created if at least one measured value is stored in the data
set. The columns
Q_POS
and
Q_NEG
will not be generated if the totalizers are deactivated.
Example
\DATA
A: \*MEASURE; Q_POS; Q_NEG;
B: \*MEASURE; Q_POS; Q_NEG;
Example
With a storage interval of 1 s, 10 lines with "
???
" will be transmitted if the measurement has been restarted after a 10 s
interruption for the positioning of the transducers.
Tab. 15.2: Data columns
column title
column format
content
\*MEASURE
###000000.00
physical quantity selected in the program branch
Output Options
Q_POS
+00000000.00
totalizer value for the positive flow direction
Q_NEG
-00000000.00
totalizer value for the negative flow direction
SSPEED
sound speed of the fluid
AMP
signal amplitude
