L-3 Communications Navigation Echosounder LAZ 5100 User Manual
Page 32
Page 3-14
L-3 ELAC Nautik
A NMEA proprietary sentence ELAC is available to allow the transfer of dual channel depth
information, including transducer mounting position.
ELA (Manufacture’s Mnemonic Code)
k:
S= Starboard, P= Port, B= Bow, A= Aft, 0=not selected
m:
K=DBK (Depth below Keel), S=DBS (Depth below Surface), T=DBT (Depth below
Transducer)
r:
Range Scale
q:
Quality of digital depth reading:
0=no depth information available
1=no depth information available, poor quality
2=depth information available, high reliability
Example:
To activate the Protocol ELAC see chapter 5.1.2 Initial System Set-up.
$
CSDS, ,
,
,
, , ,r,*
<CR><LF>
P
k x.x d.d -t.t m g
hh
ELA
Checksum
Depth quality
Selected depth mode
Distande transducer-keel
in metres (TRIM)
Distance transducer-surface
in metres (DRAFT)
Depth in metres
Transducer location
Manufacture´s mnemonic code
P:Propriatary sentence identifier
Range Scale
$
CSDS, ,
,
,
, , ,0500,*
<CR><LF>
P
B 0337.0 3.4 -1.5 K 2
3F
ELA
Checksum
Depth information, high realibility
Depth below keel
TRIM, transducer 1.5 m above keel
DRAFT, transducer 3.4
below surface
Depth = 337.0 m
Depth from Bow transducer
Range Scale