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HDT – Heading, True
Format of Input Data
See paragraph
OSD – Own Ship Data
Standard: IEC 61162-1, 2007.
1
2
3
$--OSD, x.x
, A
, x.x
, a
N
Field
Name
1
x.x
Heading, true
2
A
Heading status
3
x.x
Vessel course, true
4
a
Course reference
5
x.x
Vessel speed
6
a
Speed reference
7
x.x
Vessel set, true
8
x.x
Vessel drift (speed)
9
a
Speed units
RMB – Recommended Minimum Navigation Information
Standard: IEC 61162-1, 2007.
1
2
3
$--RMB, A
, x.x
, a
, c--c
*hh<CR><LF>
N
Field
Name
1
A
Status
2
x.x
Cross track error
3
a
Direction to steer
4
c--c
Origin waypoint ID
5
c--c
Destination waypoint ID
6
llll.ll, a
Destination waypoint
latitude, N/S
7
yyyyy.yy,a
Destination waypoint
longitude, E/W
8
x.x
Range to destination,
9
x.x
Bearing to destination
Format of Data Exchange Used in Accordance with IEC 61162-1 Standard
of this section.
4
5
6
7
8
9
, x.x
, a
, x.x
, x.x
, a
*hh<CR><LF>.
Value
Degrees
A = data valid,
V = data invalid
Degrees
B = bottom tracking log,
M = manually entered,
W = water referenced,
R = radar tracking (of fixed
target), P = positioning system
ground reference
B = bottom tracking log,
M = manually entered,
W = water referenced,
R = radar tracking (of fixed target),
P = positioning system ground
reference
Degrees
K = km/h,
N = knots,
S = statute miles/h
4
5
6
, c--c
, llll.ll, a
, yyyyy.yy,a
Value
The positioning system mode
indicator field supplements the
status field (field No. 1) which
should be set to V = invalid for
all values of Mode indicator
except for A = Autonomous and
D = Differential. The positioning
system mode indicator and
status fields should not be null
fields
nautical miles
If cross track error exceeds 9,99
nautical miles, display 9,99
L/R
nautical miles
degrees
Comments
Manually entered
Manually entered
7
8
9
10
11
12
,x.x
, x.x
, x.x
, A
, a
Comments
Chapter 4. Interface Capabilities
191
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