Vaisala WINDCAP WS425 Guide de l'utilisateur Page 100

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Vue de la page 99
USER'S GUIDE____________________________________________________________________
98 __________________________________________________________________ M211095EN-C
- Transducer temperature: 23.8 °C
- Status code: 0
- Checksum: D4
WMT700 Data Message 25
WMT700 Data Message 25 reports wind measurement, sonic
temperature, and status data. The check sum is included in the message.
WMT700 calculates the checksum by applying 8-bit XOR for all bytes.
The result is printed as a 2-digit hexadecimal value. The message is in
the format described below:
\ss$\ws,\wd,\wp,\wm,\Ts,\er,\se\sp\cr\lf
where
\ss = Checksum calculation start point, not shown in the
message
$ = Fixed text
\ws = Wind speed, average
\wd = Wind direction, average
\wp = Wind speed, peak
\wm = Wind speed maximum
\Ts = Sonic temperature
\er = Status code. The code is a decimal number. Each bit
corresponds to a status flag. For a list of the bits, see
section Status Flags on page 86.
\se = Checksum calculation end point, not shown in the
message
\sp = Print checksum
\cr = CR (carriage return)
\lf = LF (line feed)
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