Vaisala WXT510, User Manual

Page: 65 / 101

Chapter 8 _____________________________________________ Sensor and data message settings
VAISALA________________________________________________________________________ 65
Example (ASCII and NMEA 0183, device address 0):
0WU
<cr><lf>
0WU,R=01001000&00100100,I=60,A=10,U=N,D=-90,N=W
<cr><lf>
Example (SDI-12, device address 0):
0XWU! 0XWU,R=11111100&01001000,I=10,A=3,U=M,D=0,N=W
<
cr><lf>
Setting fields
[R] = Parameter selection : This field consists of 16 bits
defining the wind parameters included in the data
messages. The bit value 0 disables and the bit value 1
enables the parameter.
The parameter order is shown in the following table:
1st bit (most left) Dn Direction minimum
2nd bit Dm Direction average
3rd bit Dx Direction maximum
4th bit Sn Speed minimum
5th bit Sm Speed average
6th bit Sx Speed maximum
7th bit spare
8th bit spare
& delimiter
9th bit Dn Wind direction minimum
10th bit Dm Wind direction average
11th bit Dx Wind direction maximum
12th bit Sn Speed minimum
13th bit Sm Speed average
14th bit Sx Speed maximum
15th bit spare
16th bit (most right) spare
[I]
= Update interval : 1...3600 seconds
[A] = Averaging time : 1...600 seconds
[U]
= Speed unit : M = m/s, K = km/h, S = mph, N = knots
[D] =
Direction correction : -180...180
°
, see Chapter 4.
[N]
= NMEA wind formatter : T=XDR (Transducer
syntax), W= MWV (Wind speed and angle)
Determines whether the wind message in NMEA
The bits 1-8 determine the parameters
included in the message obtained with
the following commands:
-ASCII
:
aR1 and ar1
-NMEA 0183: $--WIQ,XDR*hh
-SDI-12 : aM1 , aMC1 , aC1 and aCC1.
The bits 9-16 determine the parameters
included in the composite data message
obtained with the following commands:
-
ASCII: aR0, ar0
-NMEA 0183: aR0,aR0.
-SDI-12 : aM , aMC , aC and aCC.