Ws425 a/b nmea standard data message – Vaisala WMT700 User Manual
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TECHNICAL REFERENCE___________________________________________________________
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Table 14
Configurable Parameters for WS425 A/B NMEA
Standard Profile
Parameter Default
Value
Profile-specific
Allowed Values
Description
address
1
String with 1 character
Address for WMT700.
autoInt
1
0.25 ... 1000
Resolution: 0.25
Automatic message interval in
seconds.
Do not select a message interval that
is shorter than the time it takes to
send a data message.
autoPort
1
1 = COM1 port
2 = COM2 port
Serial port to which WMT700 sends
automatic data messages.
autoSend
0
19 = NMEA automatic
data message
Automatic data message number.
Selects the data message format for
automatic messages.
com1_protocol
com2_protocol
(depending on the port
used for operating
WMT700)
0
4 = WS425 A/B NMEA
Standard
Profile for serial ports COM1 and
COM2.
wndAvg
1
0.25 … 3600
Resolution: 0.25
Averaging time for wind
measurement in seconds.
wndOrientation
0
0 = array facing up
1 = array facing down
Orientation of the array of WMT700.
wndUnit
0
0 = meters per second
1 = miles per hour
2 = kilometers per hour
3 = knots
Wind speed unit.
wndVector
1
0 = scalar averaging
Wind averaging method.
To start continuous measurement, use the START command. You can
stop the measurement with the STOP command. For instructions, refer to
Vaisala WINDCAP
®
Ultrasonic Wind Sensor Series WMT700 User's
Guide.
WS425 A/B NMEA Standard Data
Message
The standard variable length, comma-separated, MWV wind message is
defined by NMEA 0183 V2.20 as follows:
$WIMWV,
where
$WIMWV = Fixed text
= Wind angle: 0 to 359 degrees