Command format in SDI-12:
aXWU, R=x,I=x,A=x,G=x,U=x,D=x,N=x,F=x!
R, I, A, G, U, D,
N, F
Wind sensor setting fields.
x
Value for the setting
<cr><lf>
Command terminator in ASCII and NMEA 0183
!
Command terminator in SDI-12
If averaging time [A] is grea
ter than update interval [I], it is a multiple of the update
interval and at maximum 12 times greater. Example: If I = 5 s, A
max
= 60 s.
Examples (ASCII and NMEA 0183, device address 0):
You need a 20-sec
ond averaging time for wind speed and direction both in wind data and
composite data message in every 60 seconds. Wind speed is in knots and wind direction
oset +10°.
Changing the measur
ement interval to 60 seconds:
0WU,I=60<cr><lf>
0WU,I=60<cr><lf>
Several parameters can be changed with the same command as long as the command
length does not ex
ceed 32 characters.
Changing the averaging time to 20 seconds, the wind speed unit to knots, and direction
oset to +10°:
0WU,A=20,U=N,D=10<cr><lf>
0WU,A=20,U=N,D=10<cr><lf>
Changing the wind parame
ter selection:
Chapter 8 – Sensor and Data Message Settings
121
sales@streamlinemeasurement.co.uk
www.streamlinemeasurement.co.uk
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