Skipper DL2 User manual

DL2
Dual Axis Doppler Speed Log System (SOG+STW)
Installation Manual
SKIPPER Electronics AS
Enebakkveien 150 Telephone: [phone]
P. O. Box 151, Manglerud E-mail: [e-mail]
0612 Oslo, Norway Co. reg. no: NO-965378847-MVA
www.skipper.no
Document no: DM-M010-SA
Rev:2124
Date: 4th. November. 2021
for softwares up to 1.2.1
Display unit CU-M001-SB
BRIDGE
FORE PEAK
115-230VAC
/ 24VDC
DL21SG-SA
DL21 sensor
w/40m cable
in Sea valve
SB-100-SB
JB21-SA
Junction box
JB70D21-SA
Electronic Unit
Sensor extension cable.
Yard supply.
6 x twisted shielded pairs
Dimension: see DL2 manual Chapter 3.
JB12-SA
Junction box
DL2SG-SA
DL2 sensor
w/40m cable
in Sea valve
SB-100-SB
JB70D2-SA
Electronic Unit
Sensor extension cable.
Yard supply.
3 x twisted shielded pairs
Dimension: see DL2 manual Chapter 3.
CU-M001-SA Operator Unit for DL2
LAN cable. CAT6. Max. 100m
24VDC
CU-M001-SB
Panel PC 9” Touch display
JB70D2-SA
Electronic unit for DL2

Page 2 of 61 2021-11-04 2021-1-04 Page 3 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
INSTALLATION MANUAL
DL2 DUAL AXIS DOPPLER SPEED LOG SYSTEM
Copying of this document, and giving it to others and the use
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ages.
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Toute communication ou reproduction de ce document, toute Exploitation ou
communication de ou son contenu sont interdites, sauf autorisation expresse.
Tout manquement à cette règle est illicite et expose son auteur au versement de
dommeges et intèrèts.
COMMUNICATING WITH US
If you need more information, support or other assistance from us, do not hesitate to contact us:
SKIPPER Electronics AS
P. O. Box 151, Manglerud
NO-0612 Oslo
Norway
Phone: [phone], Fax: [phone]
E-mail: [e-mail]
SOFTWARE UPDATES AND TECHNICAL SUPPORT
Find us on the internet: www.skipper.no
YOUR FEEDBACK IS APPRECIATED
If you nd errors, misspellings or poorly explained sections in this document, please do not hesitate
to contact us at:
[e-mail]

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
CONTENTS
TERMINOLOGY ....................................................................................................................... 5
Terms used in this manual................................................................................................................................... 5
CHAPTER 1: GETTING STARTED......................................................................................... 7
Overview DL2...................................................................................................................................................... 7
Optional items DL2.............................................................................................................................................. 8
Items Not supplied by SKIPPER ......................................................................................................................... 9
Power supply requirements................................................................................................................................. 9
CHAPTER 2: HARDWARE MOUNTING ................................................................................ 10
Placement of the Operator unit ........................................................................................................................... 10
Display mounting option ...................................................................................................................................... 10
Placement of the electronic unit .......................................................................................................................... 11
Placement of JB12 Junction box ......................................................................................................................... 11
Placement of repeaters ....................................................................................................................................... 11
Placement of the sea valve ................................................................................................................................. 12
Placement of the Sensor in sea valve ................................................................................................................. 13
CHAPTER 3: WIRING.............................................................................................................. 16
Clamping the cables............................................................................................................................................ 16
CU-M001-SB Operator unit wiring....................................................................................................................... 17
JB70D2-SA Electronic Unit Wiring ...................................................................................................................... 18
Connectors supplied with JB70D2 ...................................................................................................................... 19
SENSOR CONNECTION J3 ............................................................................................................................... 20
NMEA CONNECTION J1 .................................................................................................................................... 21
AUX/Alarm CONNECTION J2............................................................................................................................. 22
Yard supplied extension cable from sensor to JB70 Electronic unit.................................................................... 23
The junction box JB12-SA................................................................................................................................... 23
CHAPTER 4: SETUP PROCEDURE ...................................................................................... 26
CONFIG .............................................................................................................................................................. 27
CU-M001 setup ................................................................................................................................................... 28
JB70D2 setup...................................................................................................................................................... 29
DL2 setup ............................................................................................................................................................ 30
Reset.............................................................................................................................................................. 33
Software options............................................................................................................................................. 34
Communications setup (NMEA/UDP) ................................................................................................................. 36
NMEA............................................................................................................................................................. 36
LAN UDP........................................................................................................................................................ 36
NMEA sentences received ............................................................................................................................. 38
NMEA sentences transmitted ........................................................................................................................ 39
Alert setup ........................................................................................................................................................... 40
Setup AUX........................................................................................................................................................... 45
System Diagnostics ............................................................................................................................................ 47
Available options in the diagnostic page ............................................................................................................. 47
Error messages ................................................................................................................................................... 48
Saving and locking ............................................................................................................................................. 48
Hardware options ................................................................................................................................................ 49
Status LEDs ....................................................................................................................................................... 49
CHAPTER 6: SOLVING PROBLEMS..................................................................................... 50
Software upgrade ................................................................................................................................................ 50
APPENDIX 1: INSTALLATION DRAWINGS.......................................................................... 51
APPENDIX 2: DATA SHEETS................................................................................................. 57
APPENDIX 3: CONNECTING 2 SYSTEMS .......................................................................... 60
APPENDIX 4: COMMISIONING CHECKLIST ....................................................................... 61
TERMINOLOGY
Terms used in this manual
_________________________________________________________
Units
Unless otherwise stated, all values shown on the display are as follows:
Speed Knots
Distance (Vessel) Nautical miles
Depth Meters
Tilt ° Degrees
Temperature ° Centigrade
Rotation Degrees per minute
Heading Degrees
Abbreviations
In addition, the following symbols are used
WT Water track
BT Bottom track
STW Speed through water
SOG Speed over ground
Trip Text for trip/total
ECDIS Electronic Chart Display and Information System
INS Inertial Navigation System
VDR Voyage Data Recorder
ROT Rotation from Gyro
GYRO Gyroscopic heading / rotation sensor
HDG Heading
DL2 2 Axis Doppler Log (with speed over bottom and Speed through water)
DL1 1 Axis speed through water sensor (part of DL21 system)
DL21 A system with combined DL1 and DL2 in the same housings
UDP User Datagram Protocol.
SFI System function Id
LAN Local Area Network
Symbols
In addition, the following symbols are used
Indicating that the information presented is partly from the GPS input, and therefore not
from this sensor. (Outputs may show invalid data in this mode)
Symbolising that the data presented is longitudinal (forward or backwards)
Symbolising the data is transversal (port or starboard)

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
CHAPTER 1: GETTING STARTED
Overview DL2
The DL2 dual axis Doppler speed log is a Navigational Doppler Speed log system that measures
speed in two axis (longitudinal and transversal) through the water and over the sea bed. The system
requires no external inputs, however adding inputs from other navigational systems enhances the
functionality and allows comprehensive quality control of the data.
The system fullls all class and type regulations based on MED B (wheelmark) and is manufactured
in Norway under stringent production controls.
The system comprises of 5 units;
1. The Operator unit – CU-M001-SB
The system is to be tted with a touch
display panel where full setup and
operation can be performed.
2. The electronic unit – JB70D2-SA
This unit comprises of a processor
and a power supply. It is a compact
single euro cabinet. It enables the
user to interface to both modern and
older navigation systems with all the
expected connectivity. The unit has a
built-in web server, allowing the system
to be fully integrated into existing
navigation systems (extra approvals
may apply).
3. Junction box JB12-SA. To connect
sensor cable to yard supplied extension
cable.
4. The sensor – The sensor (DL2SG-
SA) contains acoustic elements and
a fully programmable transceiver unit,
allowing the system to adapt itself
to the conditions and requirements.
In addition the sensor contains a
temperature sensor and tilt sensors.
5. Sea valve. The sensor may be installed
into a sea valve for single bottom hull
(SB-100-XX) or sea valve for double
bottom hull (DB-100-XX).
Simulator mode - The system is using a simulator to generate the speed and depth
Option - Mute mode. The system has a sync option activated and is currently being
muted (No acoustics)
Symbol warning Warning/Alert Status Sound
Unrectied, unacknowledged 2 beep
Rectied, unacknowledged No beep
Unrectied, acknowledged No beep
Rectied, acknowledge (Normal) No beep
Silenced alarm No beep for 30 seconds
Responsibility transferred No beep
Symbolising the resultant speed direction
BRIDGE
FORE PEAK
115-230VAC
/ 24VDC
DL21SG-SA
DL21 sensor
w/40m cable
in Sea valve
SB-100-SB
JB21-SA
Junction box
JB70D21-SA
Electronic Unit
Sensor extension cable.
Yard supply.
6 x twisted shielded pairs
Dimension: see DL2 manual Chapter 3.
JB12-SA
Junction box
DL2SG-SA
DL2 sensor
w/40m cable
in Sea valve
SB-100-SB
JB70D2-SA
Electronic Unit
Sensor extension cable.
Yard supply.
3 x twisted shielded pairs
Dimension: see DL2 manual Chapter 3.
CU-M001-SA Operator Unit for DL2
LAN cable. CAT6. Max. 100m
24VDC

Page 8 of 61 2021-11-04 2021-1-04 Page 9 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
Optional items DL2
The following optional items are SKIPPER supplied:
- Speed Repeater CD401MR-SB
- External NMEA dimmer IR31DIM-SA
Items Not supplied by SKIPPER
The following items are not SKIPPER supplied:
- LAN cable (minimum CAT6) from Operator unit to Electronic unit.
- The sensor is manufactured with a 40m cable. The cable may be cut or extended. Extension cable
is minimum CAT7 type. See chapter 3 for lengths and dimensions.
Power supply requirements
The following power supplies are required
- CU-M001-SB. Operator Unit. 24VDC. Max 10W, Typical 6W.
- JB70D2-SA. Electronic unit: 24VDC and/or 115/230VAC. Max 60W typical 15W.
There are no power switch on the CU-M001-SB or JB70D2-SA.
The power input should be including a manual circuit breaker.
There are no input fuse on the CU-M001-SB or JB70D2-SA.
The power input should be including a fuse rated for 100% - 200% of max power installed components.
Example: 24V DC to power CU-M001-SB and JB70D2-SA should have a 3A slow blow fuse.
Optional items power supply requirement:
- CD401MR repeater. 24VDC. Max 10W, Typical 6W.
- IR31DIM-SA. External dimmer: 24VDC
BRIDGE
FORE PEAK
115-230VAC
/ 24VDC
CD401MR-SB
Repeater NMEA
IR31DIM-SA
External
dimmer
NMEA
24VDC
24VDC
I/O DL2
DL21SG-SA
DL21 sensor
w/40m cable
in Sea valve
SB-100-SB
JB21-SA
Junction box
JB70D21-SA
Electronic Unit
Sensor extension cable.
Yard supply.
6 x twisted shielded pairs
Dimension: see DL2 manual Chapter 3.
JB12-SA
Junction box
DL2SG-SA
DL2 sensor
w/40m cable
in Sea valve
SB-100-SB
JB70D2-SA
Electronic Unit
Sensor extension cable.
Yard supply.
3 x twisted shielded pairs
Dimension: see DL2 manual Chapter 3.
CU-M001-SA Operator Unit for DL2
LAN cable. CAT6. Max. 100m
24VDC
LAN switch
(option)

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
CHAPTER 2: HARDWARE MOUNTING
Placement of the Operator unit
The operator unit is placed on the bridge.
Some standards require some operations of the unit to be available from ‘standing position’. These
operations are available from the operator unit and multi-repeaters if both input and output are
connected.
Dimensional drawings are found in Appendix 1.
Flush mount installation
Wall mount installation
Placement of the electronic unit
The electronic unit can be installed on a DIN rail or directly screwed onto the wall.
All parts of the system are connected to the electronic unit.
There are no buttons (like ON/OFF) in the electronic unit. Access is only required for service purpose.
Placement is typically in or near the bridge where the interfaced systems are available, but no
nearer than 0.5 m to the GYRO heading sensor. IP rating: IP20
Placement of repeaters
Repeaters are typically installed on the overhead console and/or the bridge wings. These can be
routed using NMEA signals. These require a local +24 V DC supply.
66
31,5
165,5
141
161
70
125
144
6,1 (4x)
Approved by - date
HK 2012.02.09
Designed by - date
1 of 1
JB12 Outline Drawing
Scale
OD-JB12
Revision
X0
Sheet
Edition date
Name
Drwg. no.
CN
Checked by
Material
Eur. projection Gen. tolerance
1:2 ISO2768m
E
D
Electronics AS
B
A
8 7 6 4
D
C
5 1 2 3
A
B
4 3 2 1
C
F
E
Placement of JB12 Junction box
The junction box JB12 is an option for connecting sensor cable to a yard
supplied extension cable (See chapter 3).
It is placed in a dry place within reach of the 40m sensor cable.
Display mounting option
e display is designed for ushmount installation with an option to
purchase a wallmount/desktop bracket.
Part number: MG-0002. Mounting bracket for 9” touch display.

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
Placement of the sea valve
Mounting instructions for the sea valve is available from the SKIPPER web site in separate manual
depending on the chosen type. When placing the speed log sensor, consider the following moments:
• Free sight to the bottom (it should be possible to draw a cone of +-45 degrees from the
sensor to the bottom).
• The active face of speed sensor must be in parallel to the horizontal line, max o󰀨set +-1°.
• Do not mount transducers aft of bow thruster, propeller outlets or aft of other hull
installations (such as outlets, vents or other protruding details) that may create aeration or
turbulence.
• It is necessary to select a part of the hull that is submerged and free from turbulence and
aeration under all load and speed conditions, and to avoid positions where air is trapped in
heavy weather.
• If a at, horizontal section is not available for transducer tting, the shipyard must construct
a suitable bed. Welding seams in this area and forward should be smoothed and rounded
o󰀨 in order not to create turbulence or aeration and maintain a laminar waterow at all
speed ranges of the vessel.
• Select an area that is acoustically quiet.
FWD
PORT STRB
AFT
DL2
Longitudal speed
channel
DL2
Transversal speed
Channel
The generally best placement on larger vessels is in the front region of the vessel just behind the
bulbous bow (see g above). This area is generally designed such that the bubbles are pushed to
either side of the bulb, leaving a clear area under the bulb and just behind. The sensor is installed in
a sea valve in order to service the sensor (clean or replace) without docking the vessel.
It is recommended (but not required) to install the sea valve in a dry area, like a bow thruster room.
This will enable easy cable access to junction box and additionally increase the lifetime of the sea
valve.
The sensor DL2 is installed into sea valve
100mm for single bottom SB-100-SB or
double bottom DB-100-SB.
Please see sea valve manual for installation
procedure.
Manuals available as downloads from
www.skipper.no
The sensor includes 40m moulded in cable.
The cable is 11 mm in outer diameter with a
bending radius of 56 mm. The cable can be
cut or extended if required
A
Bubbles
Sensor installation
A
Bubbles
Side view
Bottom view
Sensor placed
fore
Water relative speed is measured at a depth
between 0.3 and 3 m below transducer.
(DL1)
2 axis Water relative speed is measured at a
depth between 0.3 and 3 m below
transducer. (DL2)
Bottom track is measured down to 150m
depth
Placement of the Sensor in sea valve
NOTE
During physical installation of sensor into sea valve please make special care of the following points:
• Sensor to be lowered completly into bottom ange making sensor head ush with outer hull.
• Sensor forward direction to be aligned +/-10deg. (Fine adjust by software in calibration page)
• Clamping unit nuts and nut M50 to be tighten to secure sensor position.
There are 2 channels in DL2.
The acoustic signal is sent in
a 30deg angle in forward and starboard
directions.
A tilt sensor is used to
compensate for vessel movement.
The DL2 acoustic
signal operates at
frequencies:
SOG + low freqency
STW : 260 kHz to
280 kHz.
High frequency
STW: 845 kHz to
925kHz

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
A at object points fore/aft. The at side should be on the port side.
DB-2039
Nut M28
DB-2037
Washer (2x)
Gasket
DB-2038
Final Assembly
1. Tighten the Nut M50 (DB-2036). Torque : 98 Nm
2. Push down the Clamp Unit (DB-2033) onto the Nut M50.
and tighten the 2 screws M8 (with lock washer).Torque : 40Nm
3. Screw the 2 Nuts M16 sligtly up to the Clamp Unit.
4. Tighten the 2 Nuts M16 (with lock washer) on
1
2
3
4
Mounting order Nut M50 and Clamp Unit :
the opposite side: Torque : 98 Nm
The Clamp Unit must be fitted on Top of Nut M50
to lock the Nut.
(This is done to give extra security.)
Extention TubeCente Line
Guide Bar Ship
Sensor forward direction.
It is important to align sensor forward direction.
Pictures showing forward direction alignment in sea valve SB-100-SB.
Sensor lowered ush with outer hull.
Pictures showing lowering procedure in sea valve SB-100-SB.
Threaded hole
Port side
Forward
position mark
in moulding
Screw M4
In threaded
hole
Port side
Flat area
Port side
Secure sensor by tightening clamping unit and nut M50

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
CHAPTER 3: WIRING
The JB70D2-SA does not contain a physical switch (only software) and should be connected to a
circuit breaker for removal of power.
Power may be nominal 24V DC (No more than 32V DC) and/or 115-220V AC. Max 60W typical 15W.
The AC input is an optional back up for JB70D2-SA only. The operator unit CU-M001-SA requires a
24V DC power supply.
There are no input fuse on the CU-M001-SB or JB70D2-SA.
The power input should be including a fuse rated for 100% - 200% of max power installed components.
Example: A 24V DC to power both CU-M001-SB and JB70D2-SA should have a 3A slow blow fuse.
Clamping the cables
Cables should be connected to WAGO connector, leaving
approximately 3 cm of tail. They should be stripped with 6-7 mm of
metal showing and these should be connected as in the diagram
above. A small screwdriver with blade size approx 3.5 mm can be
used. WAGO part no 210-719 is ideal for this use.
Outer shields should be collected and grounded in a ground stud on
the edge of the cabinet. The outer insulation should be cable tied to
the plastic handle of the connector, and securely anchored nearby.
The plugs when retted, must be installed such that their clips are
fully in the up position.
220V AC. 0,5A
115V AC. 1A
24V DC. 3A
CU-M001-SB Operator unit wiring
The operator unit has 2 connectors.
1 LAN connector for communication with Electronic unit.
2: WAGO connector CN1 for 24V power. Max 10W, Typical 6W.
Items supplied with CU-M001
1 x ZZN-01120.
Connector Female w/ejectors 6x2 pole, black. (CN 1)
1 x ZZN-01123. Strain relief plate, 6x2 pole, width 11 mm. (CN 1)
Note:
CU-NMEA only in use for par-
allel systems. See appendix 4.
Standard NMEA I/O on
JB70D2-SA

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
JB70D2-SA Electronic Unit Wiring
The JB70D2-SA is connected with Operator unit CU-M001 with the LAN connectors. The second
LAN connector may be used for set up/ service purpose.
PWR 3
Not in use on DL2
Power in PWR 2
24V DC
Power in PWR1
115-220V AC
Sensor J3
NMEA J1
2 x NMEA In
4 x NMEA Out
AUX/Alarm J2
Alarm relay
1 x AUX In
2 x AUX Out
2 x LAN
ZZN-01126 Relief Housing,
3 pole snap-on.
WAGO: 232-633
ZZN-01125 Plug, Female 3
pole,231-303 026
ZZN-01124 Plug, Female 2
pole, 231-302_032-000
ZZN-01123 Strain relief
plate, 6x2 pole, width 11 mm
WAGO 713-126
ZZN-01120 Connector Fe-
male w ejectors 6x2 pole, black
WAGO 713-1106/037-000
ZZN-01123 Strain relief
plate, 6x2 pole, width 11 mm
WAGO 713-126
ZZN-01130 Connector, Fe-
male w/ejectors 3x2 pole, black
WAGO 713-1103/037-000
Connectors supplied with JB70D2
ZZN-01136 Plug, Female
3 pole with locking levers,
231-303/037-000

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
SENSOR CONNECTION J3
The sensor is connected to JB70D2-SA Connector J3. 6 pin WAGO connector.
The cable screen is connected to ground on sensor side. The cable screen is not to be grounded or
connected at JB70D2-SA side. .
J3 Pin1
NMEA CONNECTION J1
The DL2 has standard 2 NMEA Inputs and 2 Outputs.
Each output is dual and makes total of 4 outputs.
NMEA connections are short circuit protected.
J1 Pin1
If high speed prototcols are to be used (IEC61162-2) the communication common (COM) can be con-
nected to pins 11 or 12 of J2
The 24VDC power supply to sensor is
tted with a short curcuit protectection

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Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
AUX/Alarm CONNECTION J2
The DL2 has standard
Alarm relé
1 x Aux In. (default set as “Alarm reset”)
2 x Aux Out.
J2 Pin1
The junction box JB12-SA
The JB12 Junction box may be used as a terminal between sensor cable and an extension cable.
Dimensional drawing see Appendix 1.
All individual screens of sensor cable to be connected to the outer screen of the CAT7 extension
cable.
Do not ground screens to JB12 chassis.
Yard supplied extension cable from sensor to JB70 Electronic unit.
Any screened 3 or 4 twisted pair cable can be used as long as the loop resistance (measured by
twisting the pair together at one end and measuring the resistance) is less than 8.6 ohms (worst
case).
Example1:
What kind of cable do I need for 300m distance from sensor to Electronic unit?
300m cable (0.3km). Loop length 0.3*2 =0.6km. 8.6/0.6=14.3 Ohms/km
Use a cable with maximum 60 Ohm conductor DC resistance per km.
AWG15 / 1.5mms has resistance of 10.4 ohm /km
Example2
I have a CAT7 cable. Spec says 70 Ohm conductor DC resistance per km. How long distance from
sensor to Electronic unit can I use this cable?
8.6/70=0.122km. 0.122km/2=60.1m maximum length.
Color Code Signal Screen Color Code Pair Screen
White +18-36 V DC
Individually
screened pair
Brown / White (blue) Pair
Common screen
Black 0 V Blue (brown) / Blue (white) Pair
Yellow TX+
Individually
screened pair
White (green)
Pair
Black TX- Green (white)
White RX+
Individually
screened pair
White (orange)
Pair
Orange RX- Orange (white)
Yellow Aux+
Individually
screened pair
N/A Pair
Orange Aux- N/A
To be grounded
together and
passed into the
outer screen of the
Cat5e cable

Page 24 of 61 2021-11-04 2021-1-04 Page 25 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
Do NOT connect sensor cable
screen to JB70 chassis
GRD STUD
PIN 1
PIN 13
LAN
CN 1
1
11
12
2
LAN
CN 1
CU-M001-SB
JB12
PIN 1
DL2S
TO INS. IEC61162-45O
*
CU-NMEA3 OUT
ALARM
GPS / BAM
(AUX)
(DL2)
(DL2)
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
NMEA 2 OUT
NMEA 2 OUT
NMEA 2 IN
NMEA 1 OUT
NMEA 1 OUT
82 71 5 63 4 0703 10060205 09
R1R2
120801 0411
0 V
24 V
PULSE
LEVEL
OUTPUT
ALARM +
0 V
+24 V
0 V
+24 V
N
L
G
+24 V
0 V
0 V
+24 V
N
G
L
5 -24V
5 -24V
CU-NMEA1 OUT
SWITCH
BAM / VDR
INS/ECDIS
RADAR
OR BETTER
RESET -
CAT 5e
CU-NMEA1 IN
CU-NMEA3 IN
CU-NMEA2 IN
0 V
06010203 11
75 04 1210
84 63 07
1
24 V
05 0908
2
7 84 5 631 2
R1R2
0501 03
060204 212132
NMEA 1 IN
1210080604021109070503
DC
DC
AC
AUX 0 V
AUX IN 1
AUX OUT 2
AUX OUT 1
0 V
SENSOR OUT -
SENSOR OUT+
+24 V
SENSOR IN-
SENSOR IN +
AUX 5 V
R2
R1
1
01
*
AUX OUTPUT
ADD RESISTOR
TO GIVE MAX 100 mA
24 V = 220 Ohm
5 V = 50 Ohm
COM.
NC
NO
J3 J2 J1
J1J2
2
6
1
5
2
11 12
1
DC(24V)
Power for DL1
DC (24V)
Power for DL2
AC (115V-230V)
Power for DL2
JB70D2
12
2
11
1
POWER
LAN
AUX OUT 3
RELAY
J3
PIN 1
GND
GREEN
BROWN / GREEN
BLUE
GREEN / BLUE
VIOLET
BLUE / VIOLET
PIN 13
SENSOR IN+
SENSOR IN-
13
14
15
16
17
1813
+24V SENSOR
0V SENSOR
SENSOR OUT+
SENSOR OUT-
01
02
03
04
05
06
GREEN
ORANGE
BROWN
GREEN
BROWN
ORANGE
+24V SENSOR
SENSOR OUT+
SENSOR IN+
SENSOR IN-
SENSOR OUT-
0V SENSOR
07
GROUND
BLUE / VIOLET
GROUND
**
**
**
OPTIONAL COLORS
19 GROUND
DO NOT CONNECT
GROUND TO HOUSING
**
3 TSP (twisted shielded pairs)
NMEA + = B
NMEA - = A
***
***
NC (normally closed) is in contact
with COM when power OFF.
Relay default set as: Power Alarm Failure
Will engage with AC or DC power ON
AWG mm2 Max length m
23 /CAT6 0,26 65
22 /CAT7 0,33 73
20
0,5 133
18
0,823 209
15
1,5 423
E
F
C
1 2 3 4
B
A
3 2 1
5
C
D
4
6 7 8
A
B
Electronics AS
D
E
ISO2768m
Gen. tolerance Eur. projection
N/A
Material
2021.03.22
Checked by
2016.11.02 ST
Endret verdier i
AWGtable
CN
Drwg. no.
Name
GT 2018.09.28
Edition date
Sheet
03
Revision
CD-2037
Scale
Wiring diagram for DL2 Multi
1 of 1
Designed by - date
A.Matre 2014.06.03
Approved by - date
2018.09.28 ST
CU-M001-SB
connector change.
Rev.03. Changed grounding
on LAN and JB12/JB21
ST 2021.02.15
Explained AUX 3 OUT better
ST 2021.03.22
Do NOT connect sensor cable
screen to JB70 chassis
GRD STUD
PIN 1
PIN 13
LAN
CN 1
1
11
12
2
LAN
CN 1
CU-M001-SB
JB12
PIN 1
DL2S
TO INS. IEC61162-45O
*
CU-NMEA3 OUT
ALARM
GPS / BAM
(AUX)
(DL2)
(DL2)
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
NMEA 2 OUT
NMEA 2 OUT
NMEA 2 IN
NMEA 1 OUT
NMEA 1 OUT
82 71 5 63 4 0703 10060205 09
R1R2
120801 0411
0 V
24 V
PULSE
LEVEL
OUTPUT
ALARM +
0 V
+24 V
0 V
+24 V
N
L
G
+24 V
0 V
0 V
+24 V
N
G
L
5 -24V
5 -24V
CU-NMEA1 OUT
SWITCH
BAM / VDR
INS/ECDIS
RADAR
OR BETTER
RESET -
CAT 5e
CU-NMEA1 IN
CU-NMEA3 IN
CU-NMEA2 IN
0 V
06010203 11
75 04 1210
84 63 07
1
24 V
05 0908
2
7 84 5 631 2
R1R2
0501 03
060204 212132
NMEA 1 IN
1210080604021109070503
DC
DC
AC
AUX 0 V
AUX IN 1
AUX OUT 2
AUX OUT 1
0 V
SENSOR OUT -
SENSOR OUT+
+24 V
SENSOR IN-
SENSOR IN +
AUX 5 V
R2
R1
1
01
*
AUX OUTPUT
ADD RESISTOR
TO GIVE MAX 100 mA
24 V = 220 Ohm
5 V = 50 Ohm
COM.
NC
NO
J3 J2 J1
J1J2
2
6
1
5
2
11 12
1
DC(24V)
Power for DL1
DC (24V)
Power for DL2
AC (115V-230V)
Power for DL2
JB70D2
12
2
11
1
POWER
LAN
AUX OUT 3
RELAY
J3
PIN 1
GND
GREEN
BROWN / GREEN
BLUE
GREEN / BLUE
VIOLET
BLUE / VIOLET
PIN 13
SENSOR IN+
SENSOR IN-
13
14
15
16
17
1813
+24V SENSOR
0V SENSOR
SENSOR OUT+
SENSOR OUT-
01
02
03
04
05
06
GREEN
ORANGE
BROWN
GREEN
BROWN
ORANGE
+24V SENSOR
SENSOR OUT+
SENSOR IN+
SENSOR IN-
SENSOR OUT-
0V SENSOR
07
GROUND
BLUE / VIOLET
GROUND
**
**
**
OPTIONAL COLORS
19 GROUND
DO NOT CONNECT
GROUND TO HOUSING
**
3 TSP (twisted shielded pairs)
NMEA + = B
NMEA - = A
***
***
NC (normally closed) is in contact
with COM when power OFF.
Relay default set as: Power Alarm Failure
Will engage with AC or DC power ON
AWG mm2 Max length m
23 /CAT6 0,26 65
22 /CAT7 0,33 73
20
0,5 133
18
0,823 209
15
1,5 423
E
F
C
1 2 3 4
B
A
3 2 1
5
C
D
4
6 7 8
A
B
Electronics AS
D
E
ISO2768m
Gen. tolerance Eur. projection
N/A
Material
2021.03.22
Checked by
2016.11.02 ST
Endret verdier i
AWGtable
CN
Drwg. no.
Name
GT 2018.09.28
Edition date
Sheet
03
Revision
CD-2037
Scale
Wiring diagram for DL2 Multi
1 of 1
Designed by - date
A.Matre 2014.06.03
Approved by - date
2018.09.28 ST
CU-M001-SB
connector change.
Rev.03. Changed grounding
on LAN and JB12/JB21
ST 2021.02.15
Explained AUX 3 OUT better
ST 2021.03.22

Page 26 of 61 2021-11-04 2021-1-04 Page 27 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
CHAPTER 4: SETUP PROCEDURE
Setup of communication JB70D2-SA to CU-M001-SB
The communication between operator unit and Electronic unit is following IEC61162-450 lightweight
ethernet standard.
This standard allows the network to be used for the distribution and control of sensor systems such
as the DL2. These communicate using proprietary NMEA type messages on this multicast (UDP)
system. The system will exert a maximum load on the network of 20 kB/s (kilobyte per second),
and will tolerate a data tra󰀩c up to 20Mbit/s (Megabit per second) The system will exert/recieve a
maximum load of 40 datagrams/second. The system uses
An advantage of this method of communicating is that it becomes simple to have more than 1
display unit on the same system. Instead of (or as well as) repeaters, the user can have as many
control units as they wish. These are activated by pairing the units to the electronic unit. In the case
of INS bridges, the main bridge conning unit can be used as a control unit as well or instead of the
screen (with approval).
The following prameters must be set on both units before communication is established:
• IP adress
• SFI
• Paired SFI (only for Operator unit CU-M001-SA)
• Group
CU-M001-SA Operator Unit for DL2
LAN cable. CAT6. Max. 100m
JB70D2-SA Electronic Unit for DL2
LAN switch
(option)
IP Address: The IP address of the system should not clash
with any other system within the network. Regulations
state that the IP address range. During setup, it may be
necessary to change the IP to t into your local network.
SFI (System Function ID): Each device has its own
identier (SFI) and the systems can then identify who they
are and who they are talking to. These should be unique
within a vessel.
Paired SFI: Each Operator unit CU-M001-SB device
needs to know which system it is part of. By entering the
SFI of the JB70D2-SA the system pairs itself.
It is possible to have multiple screens to a single JB70D2-
SA unit. All screens will work in parallel.
Group: There are 16 groups available for the system to
be part of. It is important that the group is the same on all
communicating devices.
NOTE: The following procedure will take you through the setup using the operator unit CU-M001.
It is important to change the JB70D2-SA group before the CU-M001-SB group otherwise you will
loose connection
The setting of IP adress, SFI, Paired SFI and Group on JB70D2-SA is also accessible from SKIPPER
service software by connecting a PC to the second LAN port or via a LAN switch.
SKIPPER service software is available in dowload folder on www.skipper.no
CONFIG
Setup pages are accessed by pressing “CONFIG”
First, the Operator unit CU-M001-SB must be connected to the main Electronic Unit JB70D2-SA.
To do this enter the “CU-M001 SETUP” page.
To enter and adjust these screens a password is required. The password for all units is ‘service’.
The password will be remebered for 1 hour, or until reboot of the system.

Page 28 of 61 2021-11-04 2021-1-04 Page 29 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
CU-M001 setup
On starting the display CU-M001 rst time it will try pair up with a JB70D2-SA.
Default settings:
IP Address: 172.16.1.102
SFI (System Function ID): II0102
Paired SFI: VD0101(default SFI of JB70D2-SA)
Group:NAVD.
NOTE:
If connected to LAN network please make sure IP adresses, SFIs and Group is approved by local
administrator.
If 2 x DL2/DL21 systems are to be installed on same LAN then IP adress SFI and paired SFI have
to be changed on (at least) one of the systems to avoid conict of settings.
If default values have to be replaced then please change IP adress of JB70D2 before changing on
CU-M001.
Remote dimming DDC
O󰀨
The screen can be dimmed on screen.
Rx
The screen can be dimmed on screen or using a remote DDC message. The system can be made
to accept remote dimming from the local input or the JB70 input.
Tx
The screen can be dimmed on screen or using a remote DDC message. The system can be made
to accept remote dimming from the local input or the JB70 input.
It can also be made to send a DDC message when the dimming level is changed.
JB70D2 setup
Default settings:
IP Address: 172.16.1.101
SFI (System Function ID): VD0101
Group:NAVD.
Alarm SFI: AS0101
When on this setup page, the user is setting parameters on the remote device. It is therefore important
that the devices are properly connected before adjusting here. If the devices are not connected you
will see a system alarm on screen. Pressing this symbol will show which alarm is active.
This process can also be performed in a simpler way by using the Communications Application
avalable in the SKIPPER service software (available for download on the SKIPPER website.)
This App allows you to connect to the same network as the units and then perform a search. The
software will show you all the connected units, and you may then edit the IP adress, SFI and group
from the software. You may then enter the web pages for each individual unit.

Page 30 of 61 2021-11-04 2021-1-04 Page 31 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
DL2 setup
To help the system to calculate accurate a number of parameters should be setup for the specic
vessel it is installed into. These are entered in the DL2 setup menu.
DL2 setup is accessible from the “cong” menu.
Button (default) options What it is used for
Draft (meters) feet fath-
oms
Used to make the depth value show from the surface and not from
the sensor.
Vessel Max Speed (knot) m/s mi/h Used to set the calibration parameters and to ensure data is rea-
sonable.
Vessel Length meters Used to calculate The Aft transversal speed
(ROT signal must be input for this)
Sensor distance
from Bow
meters Used to calculate The Aft transversal speed
(ROT signal must be input for this)
Tonnage tonnes Used to set correct averaging time. Larger vessels will have
slower speed changes and may use a higher averaging to calculate
the speed.
SOG Averaging
time
seconds Manuel set of averaging time for SOG at speeds over 6kn. This
setting will override settings from “Tonnage”
SOG low speed
averaging time
seconds Manuel set of averaging time for SOG at speeds under 6kn. This
setting will override settings from “Tonnage”
STW averaging
time
seconds Manuel set of averaging time for STW at speeds over 6kn. This
setting will override settings from “Tonnage”
STW low speed
averaging time
seconds Manuel set of averaging time for STW at speeds under 6kn. This
setting will override settings from “Tonnage”
Current
calculation
(AUTO)
Log-SOG,
GPS-SOG
AUTO
The “Water current” speed and direction are calculated from the
STW measurement and an SOG from the log and/or a GPS input.
In deep water,(depths>150m) SOG is not available from the log.
AUTO will automatically change from log to GPS when log bot-
tom is lost.
Log-SOG will allways calculate “Water current” with SOG from
log.
GPS-SOG
GPS on lost bot-
tom
(ON)/OFF If the water is too deep, the system cannot measure SOG. This
option will switch the value to GPS (on screen) with a small sym-
bol to indicate where the data comes from.
The system will not send SOG data on its outputs in this case.
Vessel image 1-5 The image of a vessel can be changed to various vessel types.
SOG Shallow
ping length
1-(2)-4-8msec. Default 2msec.
May be set to 1msec for better shallow water
SOG Deep ping
length
1-2-4-(8)msec. Default 8ms for deeper bottom tracking
SOG Shallow
power
Low-Medium-
(High)
Default High. Power level of SOG signal in shallow water
DL1/DL2 synch OFF / (ON) In DL2 the systems can be made to ping simulataniously to pre-
vent acoustic cross over
Sampling Dis-
tance
(0.5)-16m The STW water sample can be moved further from the vessel to
reduce eects of drag.
Low speed correc-
tion
(ON) o activation of a lter to improve alongside data.
Press “arrow”
to access more
buttons

Page 32 of 61 2021-11-04 2021-1-04 Page 33 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
Reset
There are 4 available reset options.
1. Reboot of software
2. Reset settings: Will reset settings for screens and DL2 setup (except max speed) back to de-
fault.
3. Reset settings and calibration: Will also set calibration settings to default.
4. Reset all: Will set the system calibration and communication settings (IP) back to default. Op-
tions will be returned to default, but access to the options is maintainted.
Output parameters SOG+STW
SOG only
DL2 system: Set to SOG+STW
DL2 calculates and displays SOG+STW in two axis.
VBW, VHW,VLW NMEA sentences on the DL2 includes STW
and SOG from DL2.
DL21 system: Set to SOG only
DL21 has STW parameter to radars etc comes from the DL1 part,
and the SOG comes from the DL2 part.
Both STW (from DL1) and SOG (from DL2) can be sent from
DL2 NMEA output.
To ensure this the button “SOG only” is set in the DL2 set up, and
then disables the STW parts of the DL2. Instead the DL1 STW
(single axis) still be displayed on the screens.
The NMEA output from DL2 will change so that STW speed and
trip (from DL1) is available in the VBW, VHW,VLW NMEA
sentences on the DL2.(SOG still from DL2)
Primary STW
Frequency
(High freq), Low
freq
The high high frequency option is only available in DL2 software
ver 1.1.0 and higher. with DL2 sensors serial number 170373 and
higher. Not available in DL21
The STW parameter can measure at both high (850-910kHz) and
low (265-278kHz) frequency. High is normally better, but the
user can change to low frequency. Both frequencies are calibrated
during a Sea test calibration, and the Current primary is displayed
in the Calibration settings as default.
SOG Freq.
Change point
(0) 0-10m The SOG parameter is also improved in shallow water by using
the high frequency. This parameter is currently not in use
Important settings at time of installation:
Vessel max speed. Please insert before rst time speed calibration. Calibration may be lost if Max
speed is changed.
Vessel length and Sensor distance from bow. Required for Aft transversal speed calculation.
Tonnage and averaging time: Response time of speed log should be set correct to the specic
vessel. Normally response is relative to tonnage of vessel. A default averaging time is set on basis
of tonnage input but the averaging time may be manually adjusted independant of tonnage.
Saving settings on USB Stick:
Once settings have been setup it is possible to save the settings by inserting a USB Stick. This will
create (or Use) a folder called /skipper/downloaded_setups and in this folder it will create a directory
with the DL2 system serial number
reloading settings from a USB Stick:
To reload a setting the folders setup (settings) and conguration (Calibrations) must be renamed
and copied into a directory under
/skipper/upload_new_setup/ or /skipper/upload_new_conguration
This will be copied into any system the USB stick is placed. a le with the system serial number
will be created once copied and to upload again, these must be deleted. Wait until the system has
rebooted before removing

Page 34 of 61 2021-11-04 2021-1-04 Page 35 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
Software options
The DL2 system has a number of options available. The software and hardware in this product is
designed to meet the requirements of MED and IEC 60945. The product in its standard form is limited
to meet the specication required. However,it is designed to allow adjustments and improvements
to be implemented so that the product can be used in markets requiring higher specication and
functions not standard in a commercial speed log.
There are currently 2 available purchase options. These are activated by entering the code provided
by SKIPPER in the correct eld. All options can be activated in retrospect (at an additional cost) by
giving the system serial number to SKIPPER, they will send the activation code in return
Purchase options
- 1% accuracy
DL2 is default 2% accuracy. Activating 1% accuracy option will give the option in the DL2 menu,
and in each NMEA output menu, to congure to show 1 or 2 decimals, on the screen values and
NMEA sentences.
Will enable a set of lters and features that will ensure and check, that the unit is operating within
1% specication.
- Synchronize
This option enables the user to send a mute signal to stop the sensor from pinging.
There are 2 syncronize input options:
• AUX level into the aux input to stop the sensor.
• NMEA message input $PSKPBLNK,2,1,ON*nn or $PSKPBLNK,2,1,OFF*nn where ON is
mute
There are 2 synchronize output options:
• AUX “SyncOut” will give a pulse out when sensor is conrmed muted from external input.
• AUX “PingOut” will give a pulse out when sensor is pinging.
Please note!
The sensor pinging is a very short repeating pulse of 1-8milliseconds.
Due to electronics delay the sensor will mute 8ms after a level change on the Aux input.
When Synchronize is active a warning M will be shown on the screen, after 10 seconds of mute,
the system will detect this as a sensor failure and give a system alert.
Purchase options
Non-Pay options
Docking
Auto GPS on NMEA
Temp compensation
Tilt compansation
Activating/de-activating software options.
Software options can be activated and de-activated in the DL2 menu. This page contains a table
where the installer can enter codes purchased/supplied from SKIPPER. Codes will only activate if
they detect the correct hardware in place. Codes are unique to the serial number of the system and
can not be moved from system to system. To remove an extra option, the user must re-enter the
code number.

Page 36 of 61 2021-11-04 2021-1-04 Page 37 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System
Communications setup (NMEA/UDP)
NMEA
The most common communication method to this type of system is the IEC61162-1 NMEA ports,
these use an isolated input RS422 diferential method. The IEC61162-1 standard requires 4800
baud, 8 databits, 1 stop bit and no handshake. The system also supports faster communications
as specied in the IEC61162-2 standard using 38400 baudrate. If this standard is to be used the
output requires a common connection available on J2 pin 11 or pin 12.
It is also possible to run the system at 115200 baud, although there is no standard to support this.
LAN UDP
In addition, this unit supports the LAN UDP standard (IEC61162-450 (2018)) The system defaults
to use NAVD group. Aggregation is not used, Clusters information is not sent, but is received. The
NETA group is used to send SRP, Network information. Subnett mask within the system is set to
255.255.0.0 . IGMP Version 3.
Communication setup page is accessed via cong menu.
Scroll down with the right sid arrow until “Communication setup” button is displayed.
Scroll down
For each of the outputs 1, 2 and LAN (UDPM) it is possible to activate a number of sentences.
Normally with On and O󰀨. The resulting outputs are shown on the left on the screen.
The alarm output has 3 choices ALR, ALF and OFF. This because only one of these should be
selected at a time.
Output settings are password protected for changes.
The password for all units is ‘service’. The password will be remebered for 1 hour, or until reboot
of the system.
Window will show sen-
tences In/Out from
NMEA1, NMEA2 or UDP
In/Out select
Select NMEA1, NMEA2 or UDP
Output sentences settings for
NMEA1, NMEA2 and UDP

Page 38 of 61 2021-11-04 2021-1-04 Page 39 of 61
Installation DL2 Doppler Speed Log System
Installation DL2 Doppler Speed Log System

If input is shown, then the system will colour code the headers to show if the data is recognised,
and correct, recognised and not correct, or not recognised/used
All channels will detect inputs and automatically use those that are recognised
Speed and course over ground (Required for “SOG from GPS when lost bottom”)
Speed and course over ground VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh<CR><LF>
Time
Day, month, year ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx*hh<CR><LF>
Position
Geographical lat/lon GLL,llll.ll,a,yyyy.yy,a,hhmmss.ss,A,a*hh<CR><LF>
GPS position GGA,hhmmss.ss,llll.ll,yyyy.yy,a,x,xx,x.x,x.x,M,x.x,xxxx*hh <CR><LF>
Rate of Turn (Required for docking functionality in Page D)
Rate of turn ROT,x.x,A*hh<CR><LF>
Alarm
Acknowledge alarm ACK,xxx*hh<CR><LF>
ACN,hhmmss.ss,aaa,x.x,x.x,c,a*hh<CR><LF>
Heading
Heading, true, present HDT,xx.x,T*hh<CR><LF>
True heading and status THS,x.x,a*hh<CR><LF>
Composite
Loran C specic RMA,a,xxxx.xx,N,xxxxx.xx,W,,,xx.x,xxx.,,*xx<CR><LF>
GPS, transit specic RMC,hhmmss.ss,A,llll.ll,a,yyyy.yy,a,x.x,x.x,xxxxxx,,,*hh <CR><LF>
External trip reset over NMEA
Trip reset
In SOG only mode Trip reset to DL2 will be transferred to DL1.
$PSKPRSTT*<hh><CR><LF>
Trip and total adjust $PSKPSTL,<trip>,<Total>*<hh><CR><LF>
External dimming over NMEA
External dimming of display unit $--DDC, a, xx,a*hh<CR><LF>
Placing a system in standby
Set a system in standby or
wake up
$PSKPSLP,<target SFI>,<sleep value>*hh
command added for setting system to sleep or waking up. <target SFI> can
be JB’s SFI or SFI of a display paired with JB of a particular system, <sleep
value> is “1” or “0”, “1” - sleep
A number of proprietary inputs may also be present (particularly on the LAN channel) to communicate
with the display and JB70 unit
NMEA sentences transmitted
(talker) IEC 61162-1:2016(E) (NMEA 0183) messages:
Speed and distance
Name Description Example
VHW Water speed and heading
(In a DL21 “SOG only” mode VHW will show water
speed from DL1)
$VDVHW,,,,,x.x,N,x.x,K*hh <CR><LF>
VLW Dual water/ground distance sentence
x.x = Total trip (Water), y.y = Trip (Water)
Ground distance
a.a = Total Distance (Ground),b.b = Trip (Ground)
(In a DL21 “SOG only” mode VLW will show water trip
and total from DL1)
$VDVLW,x.x,N,y.y,N,a.a,N,b.b,N*hh<CR><LF>
VBW Dual ground/water speed
x.x= Longitudal water speed (knots, “-”=astern)
y.y= Transversal water speed (knots, “-”=port)
A= Status Valid data
V= Invalid data)
z.z= Longitudinal ground speed (knots, “-”=astern)
u.u= Transversal ground speed (knots, “-”=port)
p.p= Stern Transv water speed. Not used on DL2(Empty)
s.s= Stern Transversal ground speed (knots, “-”=port)
In a DL21 “SOG Only” mode VBW x.x will show data
from DL1 STW (y.y will be empty)
$VDVBW,x.x,y.y,A,z.z,u.u,A,p.p,V,s.s,A*hh <CR><LF>
VBWX Dual ground DL2/water DL1 speed
In a DL21”SOG+STW” mode
VBWX will show VBW data from DL2
+ d.d= Longitudal water speed from DL1
$PSKPVBWX,x.x,y.y,A,z.z,u.u,A,p.p,A,s.s,A,d.d,A*hh <CR><LF>
Temperature
Name Description Example
MTW Water temperature $VDMTW,x.x,C*hh<CR><LF>
Water current
Name Description Example
CUR Water current
x.x=Current speed in knots
B=Bottom track (P=GPS)
$VDCUR,1.1,3.0,,Tx.x,y.y,,T,B*hh<CR><LF>
Water current function is only available with 3 valid sea calibrations and installation angle oset in place.
Alarm
Name Description Example
ALR Set alarm state $VDALR,hhmmss.ss,xxx,A,A,<Alarm message> *hh<CR><LF>
ALF $VDALF,x,x,x,hhmmss.ss,a,a,a,aaa,x.x,x.x,x.x,x,c---c*hh<CR><LF>
ALC Cyclic alert list $VDALC,xx,xx,x.x,aaa,x.x,x.x,x.x,...,aaa,x.x,x.x,x.x*hh<CR><LF>
ARC Alert command refused $VDARC,hh,mm,ss.ss,aaa,x.x,x.x,c*hh<CR><LF>
HBT Heartbeat $VDHBT,xx,A*hh<CR><LF>
Depth
Name Description Example
DPT Depth $IIDPT,x.x,x.x*hh<CR><LF>
DPC (Not in use) Depth
Values will be preceded with sign as needed ( e.g “-“ = Astern, Port). hh = Checksum.