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1001001-2EN A2 Product Manual 2_0
8.1.11 VTG – Course over ground and ground speed
$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a
$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a
Field
Format
Name
Comment
1
--VTG
Sentence Id
Used
2
x.x
Course over ground, degrees true
Used
3
T
4
x.x
Course over ground, degrees magnetic Ignored
5
M
6
x.x
Speed over ground, knots
Used
7
N
8
x.x
Speed over ground, km/h
Ignored
9
K
10
a
Mode indicator
Used
8.1.12 ZDA – Time and date
This message is only interpreted if it’s received from the internal GPS (the time synchronisation source).
This message is only interpreted if it’s received from the internal GPS (the time synchronisation source).
$--ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx
Field
Format
Name
Comment
1
--ZDA
Sentence Id
Used
2
hhmmss.s
s
UTC
Used
3
xx
Day (UTC)
Used
4
xx
Month (UTC)
Used
5
xxxx
Year (UTC)
Used
6
xx
Local zone hours
Ignored
7
xx
Local zone minutes
Ignored
8.2
General Input Sentences
8.2.1 ACK – Acknowledge Alarm
$--ACK,xxx
$--ACK,xxx
Field
Format
Name
Comment
1
--ACK
Sentence Id
Used
2
xxx
ID of the alarm source
Used
8.2.2 EPV – Command or report equipment property value
$--EPV,a,c--c,c--c,x.x,c--c,
$--EPV,a,c--c,c--c,x.x,c--c,
Field
Format
Name
Comment
1
--EPV
Sentence Id
Used
2
a
Sentence status flag
Used
3
c--c
Destination equipment type
Used, AI or STT
4
c--c
Unique Identifier
Used, may be null
5
x.x
Property identifier
Used
6
c--c
Value of property to be set
Used
8.2.3 SPW – Security Password Sentence
$--SPW,ccc,c--c,x,c--c
$--SPW,ccc,c--c,x,c--c
Field
Format
Name
Comment
1
--SPW
Sentence Id
Used
2
ccc
Password protected sentece
Used
3
c--c
Unique Identifier
Used, may be NULL
4
x
Password level
Used
5
c--c
Password
Used
8.2.4 HBT – Heartbeat Supervision Sentence
$--HBT,x.x,A,x
$--HBT,x.x,A,x
Field
Format
Name
Comment
1
--SPW
Sentence Id
Used
2
x.x
Configured repeat interval
Used (Limited to 60 sec)
3
A
Equipment status
Used
4
x
Sequential sentence identifier
Ignored