User's Guide ______________________________________________________________________
134 _________________________________________________________________ M210855EN-C
PA11A Message Format
Message type 1 format is as follows:
<sp>P1<sp>P2<sp>P3<sp>status<sp>average<sp>trend<cr>
where
<sp> = Space character
P1 = Pressure output from transducer 1 (in 0.1 hPa). The
reading is written with 5 characters.
If the transducer has a fault or has been switched off,
the reading is replaced with error status /////.
P2 = Pressure output from transducer 2, same format as P1
P3 = Pressure output from transducer 3, same format as P1
status = Status of the average pressure measurement (binary,
with 8 characters). 10000000 means OK with all three
transducers included. Otherwise, the last three bits of
the status will indicate the transducers that are
included when calculating the average. For example,
status 00000110 means that transducers 2 and 3 are
included and transducer 1 is ignored.
average = Average pressure (with 5 characters) based on three
consequent measurements of each transducer
included, i.e. pressure average over approx. one
minute.
If the average pressure cannot be calculated, the
reading is replaced with error status /////.
trend = Three hour pressure trend (with 3 characters). Falling
trend is indicated with a minus "-" character before
the reading. If the data is not available (when
measurement has been running for less than three
hours), the reading is replaced with ///.
<cr> = Carriage return character
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