JRC JLN-900 - Heartbeat Supervision Sentence (-HBT)

11-11
3.1.7 Depth (--DPT)
1 2 3 4 5
$--DPT,x.x,x.x,x.x*hh<CR><LF>
Field # Field Type Definition Note
1
Name
Depth VD = Log, SD = Depth sounder
2
x.x
Depth below transducer [m] Null field indicates out of range
3
x.x
Depth between transducer and
keel or water line[m]
This figure is unknown to the log
system, so a null field is
transmitted here.
4
x.x
Maximum range scale in use (Fix set to 400 m)
5
hh
Checksum
Example: Data from JLN-900 speed log (depth measured to 30.0 m):
$VDDPT,30.0,,400*
$SDDPT,30.0,,400*
3.1.8 Heartbeat supervision sentence (--HBT)
1 2 3 4 5
$--HBT,x.x,A,x*hh<CR><LF>
Field # Field Type Definition Note
1
--
Talker id VD = Log, VR = VDR,
SD=Depth Sounder
2
x.x
Configured repeat interval In seconds
3
A
Equipment status A: Normal operation
V: Not normal operation
4
X
Sequential sentence identifier 0 to 9
5
Hh
Check sum
3.1.9 Rate of turn (--ROT)
1 2 3 4
$--ROT,x.x,A*hh<CR><LF>
Field # Field Type Definition Note
1
Name
Rate of turn TIROT, HEROT, INROT
2
x.x
Rate of turn [degrees / minute] "-" is bow turns to port
3
A
Status A = data valid, V = data invalid
4
hh
Checksum
Example: Data from rate of turn gyro (30 degrees / minute clockwise):
$TIROT,30.0,*