Vaisala WMT700 - Manual (Page 134)

User's Guide ______________________________________________________________________
WMT700 Data Message 25
WMT700 Data Message 25 reports wind measurement, sonic
temperature, and status data. The checksum is included in the
message. WMT700 calculates the checksum by applying 8-bit
XOR for all bytes between checksum calculation start point and
end point. 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, maximum
\wm = Wind speed, minimum
\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 123
\se = Checksum calculation end point, not shown in the message
\sp = Print checksum (to verify message integrity)
\cr = CR (carriage return)
\lf = LF (line feed)
132 __________________________________________________________________ M211095EN-E