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ALR – Set Alarm State
Standard: IEC 61162-1, 2000.
1
$--ALR, hhmmss.ss
,xxx
N
Field
Name
1
hhmmss.ss
Time of alarm
condition change
2
xxx
Local alarm identifier
3
A
Alarm condition
4
A
Alarm’s acknowledge
state
5
c--c
Alarm’s description text
APB – Heading/Track Controller (Autopilot) Sentence B
Standard: IEC 61162-1, 2007.
1
2
3
4
$--APB, A
, A
, x.x
, a
, N
N
Field
Name
1
A
Status
2
A
Status
3
x.x
Magnitude of XTE
4
a
Direction to steer
5
N
XTE units
6
A
Status
7
A
Status
8
x.x
Bearing origin to
destination
9
a
10
c--c
Destination waypoint
ID
11
x.x
Bearing, present
position to destination
12
a
13
x.x
Heading to steer to
destination waypoint
14
a
15
a
Mode indicator
Format of Data Exchange Used in Accordance with IEC 61162-1 Standard
2
3
4
5
,A
,A
,c--c
*hh<CR><LF>.
Value
Hours, minutes, seconds (UTC)
Alarm number
A = threshold exceeded,
V = not exceeded
A = acknowledged,
V = unacknowledged
5
6
7
8
9
10
, A
, A
, x.x
, a
, c--c
, x.x
Value
A = Data valid,
V = LORAN-C blink or SNR
warning,
V = general warning flag for
other navigation systems when
a reliable fix is not available
A = OK or not used,
V = LORAN-C cycle lock
warning flag
L/R
Nautical miles
A = arrival circle entered,
V = arrival circle not passed
A = perpendicular passed at
waypoint,
V = perpendicular not entered
M/T
Magnetic or true
Magnetic or true
A = Autonomous mode;
D = Differential mode;
E = Estimated (dead reckoning)
mode;
M = Manual input mode;
S = Simulator mode;
N = Data not valid
Comments
11
12
13
14
15
, a
, x.x
, a
, a
*hh<CR><LF>.
Comments
Values “E”, “M”, “S”
are processed as
“N”
Chapter 4. Interface Capabilities
189
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