Vaisala WMT700 - Manual (Page 56)

TECHNICAL REFERENCE___________________________________________________________
54 __________________________________________________________________ M211097EN-C
WS425 A/B NMEA Extended Data
Message
WS425 A/B NMEA Extended data message is as follows:
$P<id>MWV,<dir>,<ref>,<spd>,<uni>,<sta>*<chk><CR><LF>
where
$P
= Fixed text
<id> = Data ID; A … Z
MWV = Fixed text
<dir> = Wind angle: 0 to 359 degrees
<ref> = Reference:
R = relative
T = true
<spd> = Wind speed
<uni> = Wind speed unit:
K = kilometers per hour
M = meters per second
N = knots
<sta> = Status:
A = valid data
V = invalid data
* = Fixed text
<chk> = Checksum (8-bit XOR, excluding $ and *)
<CR> = Carriage return code, ASCII 0DH
<LF> = Line feed code, ASCII 0AH