Gill Instruments Ltd
Intrinsically Safe WindObserver Anemometer
Page 30
Issue 10
Doc. No. 1360-PS-0001
May 2015
Mode 5
ASCII, NMEA, continuous
$IIMWV,262,R,000.84,M,A*1A
Fault free conditions.
$IIMWV,,R,,M,V*29
Fault report condition with CSV setting (O1).
$IIMWV,999,R,999.99,M,V*07
Fault report condition with Fixed Field setting (O2).
Where:
$IIMWV,DDD
1
,R,MMM.MM,U,A,*cc<CR><LF>
‘$’
-
Start of string character
‘II’
-
Integrated instrument (or WI = Wind Instrument)
‘MWV’
-
Mean wind direction and velocity
DDD
-
Direction in degrees
‘R’
-
Relative wind measurement
MMM.MM
Wind Speed
U
-
Units (M=m/s, N=knots, P=mph, K=kph, F=fpm)
A
-
Data Status flag (A = Acceptable, V = Void)
‘*’
-
Checksum delimiter
cc
Checksum, Exclusive OR of all characters between ‘$’ and
‘*’ reported as ASCII hex.
MODE 6
Binary Tunnel Continuous
In a terminal program the Binary output will look like:-
Converted it will read like:-
0x81 0x81 +000.04 1 00 1
<STX>,
MMM.MM,
P,SS,U<ETX><CR><LF>
Where:-
<STX>
-
Start of string character (ASCII value 2)
MMM.MM
-
Wind Magnitude along U axis.
P
Direction along U Axis (1 - +U, 0 = -U)
SS
-
Status Code (see Para 10.5)
U
-
Units (1=m/s, 2=knots, 3=mph, 4=kph, 5=fpm)
<ETX>
-
End of string character (ASCII value 3)
<CR><LF>
-
Carriage Return and LineFeed
Содержание 1086-G-045
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