Nmea and simnet messages, 14 nmea and simnet messages, Information required to operate in wind – Simrad Autopilot AP26 User Manual
Page 142

Simrad AP26 and AP27 Autopilots
140
20221586B
8.14 NMEA and SimNet messages
NMEA0183 messages and data overview for AC10, AC20, AC40
Message ident.
HD
G
HD
M
HDT
RS
A
MWV
2)
VP
W
2)
DB
T
DP
T
MT
W
VH
W
2)
VLW
VB
W
GGA
GLL
RMA
Data source:
(n/p/h=nav/pos/heading source, c=calculated)
: h
h
h
c
p p p
Accept. cond
. (N=nav. flag, P= pos. flag)
:
P P P
Status flag
P* P P
Compass_Data
Compass heading, M
1)
2
1
Compass heading, T
3
Rudder_Data
Rudder angle
1
Wind_Data
Apparent wind angle
1)
1
Apparent wind speed
1)
1
True wind angle
1
True wind speed
1
Velocity made good to windward
1)3)
1
Depth_Data
Depth ref transducer
1 2
Transducer-Keel Offset
1
Speed_Temp_Data
Speed through water
1)
1
2
Log distance and trip
1
Water temperature
1
Gps_Data
Present position Lat, Lon
1)
4 1 2
COG, T
1
COG, M
1)
Magnetic variation
1
5
SOG
1)
1
Nav_Data
To-wp position
1)
To-wp ident.
Bearing wp-wp, T
Bearing wp-wp, M
1)
Bearing pos-wp, T
Bearing pos-wp, M
1)
Distance pos-wp
1)
XTE
1)
Waypoint closure velocity
1)
Steering_contr1
Heading steering cmd, T / M
AC NMEA-1 Rx:
x x x x x x x x x x x
AC NMEA-2 Rx:
x
x
x
x x x x x x x x x x x
AC NMEA-1 TX:
Transmission interval in sec.->
1
1
1 1
2
AC NMEA-2 TX:
.1* 1
.1* .2
1. Information required to operate in WIND
N
mode
2. Recommended sentences for operating in WIND
N
mode
3. If the VPW sentence is not available, the autopilot will calculate the
VMG internally.