Skipper GDS101 Specification sheet

Document no: DM-G001-SB
Rev: 1414A
For sw ver 05.05.16 - 5.05.17
Edition: 2014-04-01
SKIPPER Electronics AS Telephone: [phone]
Enebakkveien 150 Telefax: [phone]
P. O. Box 151, Manglerud E-mail: [e-mail]
0612 Oslo, Norway Co. reg. no:NO-965378847-MVA
www.skipper.no
GDS101
Operation and Installation Manual
Graphic Depth Sounder

Page 2 of 70
Edition: 2014.04.01
GDS101 Operation and Installation
SKIPPER Electronics AS
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Contents
1. INTRODUCTION..........................................................................................................................6
System Summary ............................................................................................................................................... 6
Transducers ........................................................................................................................................................ 6
Operator Panel and Data Entry .......................................................................................................................... 6
Recorded Data Storage ...................................................................................................................................... 7
Fig. 1.1 Main Display Unit Panel Layout.......................................................................................................... 7
Fig. 1.2 System Diagram ................................................................................................................................... 8
Interfacing.......................................................................................................................................................... 9
Outputs ..........................................................................................................................................................................9
Inputs.............................................................................................................................................................................9
Alarms................................................................................................................................................................ 9
Options............................................................................................................................................................... 9
Repeaters.......................................................................................................................................................................9
Remote Sounding Control.............................................................................................................................................9
Autorange......................................................................................................................................................................9
Sound Speed Calibration...............................................................................................................................................9
Fig. 1.3 GDS101 Primary Functions................................................................................................................ 10
2. OPERATION................................................................................................................................11
Parameter entry ................................................................................................................................................ 11
Fig. 2.1 Setting and Parameter Entry Flowchart.............................................................................................. 11
Example of parameter entry........................................................................................................................................12
Operation Screens ............................................................................................................................................ 12
Primary Operation Screens .........................................................................................................................................13
Fig. 2.2. Screen 1, Primary Operation screen.........................................................................................................13
Fig. 2.3. Screen 2, 2nd Operation screen................................................................................................................14
Fig. 2.4. Screen 3, 3rd Operation screen. ...............................................................................................................15
Secondary Operation Screens .....................................................................................................................................16
Fig. 2.5. Screen 4, Calendar and clock setting. .....................................................................................................16
Fig. 2.6. Screen 5, Language and units of measure setup.......................................................................................17
Fig. 2.7. Screen 6, Interface setup screen. .............................................................................................................18
Fig. 2.8. Screen 7, History Memory Control Screen. .............................................................................................19
Fig. 2.9. Screen 8, NMEA control screen...............................................................................................................20
Fig. 2.10. Screen 9, System status screen...............................................................................................................21
Fig. 2.11. Screen 10, Oscilloscope screen. .............................................................................................................22
Principal Functions ......................................................................................................................................... 23
Bottom detection .........................................................................................................................................................23
Ping to Ping ltering ...................................................................................................................................................23
Bottom Search Range..................................................................................................................................................23
System (Power) On/Off...............................................................................................................................................23
Remaining disk size diagnostics .................................................................................................................................23
Fixed Key Functions........................................................................................................................................ 24
Depth Range................................................................................................................................................................24
Picture Speed...............................................................................................................................................................24
Screen Select ...............................................................................................................................................................24
Day/Night and back light adjustment (brightness)......................................................................................................24
Soft key Functions ........................................................................................................................................... 25
Gain.............................................................................................................................................................................25
TVG.............................................................................................................................................................................25
Digital indication.........................................................................................................................................................25
Frequency....................................................................................................................................................................25
Output Power ..............................................................................................................................................................25
Draught........................................................................................................................................................................25
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External Printer Operation ..........................................................................................................................................26
Alarm Settings.............................................................................................................................................................26
Alarm acknowledgement ............................................................................................................................................27
Alarm ID .....................................................................................................................................................................27
Audio warning.............................................................................................................................................................27
Clock and Calendar Settings .......................................................................................................................................27
History Memory..........................................................................................................................................................27
Simulator.....................................................................................................................................................................28
Status Screen ...............................................................................................................................................................28
Oscilloscope Screen ....................................................................................................................................................28
Nonvolatile Flash Parameter Memory ........................................................................................................................28
Options............................................................................................................................................................. 28
Repeaters/Slaves .........................................................................................................................................................28
Remote Sounding Control...........................................................................................................................................28
Auto Range..................................................................................................................................................................29
Sound Speed Calibration.............................................................................................................................................29
External Printer ...........................................................................................................................................................29
3. USER MAINTENANCE .............................................................................................................30
Transducer Maintenance .................................................................................................................................. 30
Operator Unit Maintenance.............................................................................................................................. 30
Typical Status Screen (9) Contents .................................................................................................................. 31
Typical Oscilloscope Screen (10) Contents ..................................................................................................... 33
4. INSTALLATION .........................................................................................................................35
Standard System Supply .................................................................................................................................. 35
Transducer Installation..................................................................................................................................... 35
Location.......................................................................................................................................................................35
Installation Details ......................................................................................................................................................35
Fig. 4.1. Basic System Conguration. ............................................................................................................. 36
Transducer Junction Box ................................................................................................................................. 37
Fig. 4.2. Transducer Junction Box. .............................................................................................................................37
Operator Unit Installation ............................................................................................................................... 38
Fig. 4.3. Operator Unit. ...............................................................................................................................................38
115/230 V Selection......................................................................................................................................... 39
EMC................................................................................................................................................................. 39
Fig. 4.4. Voltage selection connectors and fuses, terminal board. ................................................................... 40
Fig. 4.5. History Memory Battery Jumper, I/O Board. .................................................................................... 41
Fig. 4.6 Function LEDs, Terminal, I/O and CPU Boards. ............................................................................... 42
Fig. 4.7. Main Wiring Diagram........................................................................................................................ 43
Fig. 4.8. Input/Output Circuitry. ...................................................................................................................... 44
Interfacing........................................................................................................................................................ 45
Alarm relay..................................................................................................................................................................45
External alarm reset function .....................................................................................................................................45
Log Pulse input ...........................................................................................................................................................45
Remote Transducer Selector FEEDB (Feedback).......................................................................................................45
Transmitter trigger pulse and bottom pulse outputs....................................................................................................46
Analogue interfaces.....................................................................................................................................................46
NMEA interface ..........................................................................................................................................................46
Fig. 4.9. NMEA connector XJ303...............................................................................................................................46
Fig. 4.10. Data Communication Interfaces. ................................................................................................................47
Fig. 4.11. Alarm interconnections ..............................................................................................................................48
External Interface Ports...............................................................................................................................................49
Fig. 4.12. External Interface Ports ..............................................................................................................................49
Options............................................................................................................................................................. 50
Repeaters/Slaves .........................................................................................................................................................50
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Remote Keyboard........................................................................................................................................................50
Remote Sounding Control...........................................................................................................................................50
5. START-UP AND SYSTEM ADAPTION....................................................................................51
System Adaptation ........................................................................................................................................... 51
Analogue Output and Log Pulse Input Range Selection.............................................................................................51
Language and Units of Measure .................................................................................................................................51
Remote Transducer Selector .......................................................................................................................................51
Low frequency indication ...........................................................................................................................................51
NMEA Setup ...............................................................................................................................................................52
NMEA transmitted/output messages...........................................................................................................................52
NMEA received/input messages .................................................................................................................................53
Options............................................................................................................................................................. 54
Calibration, Sound Speed............................................................................................................................................54
External Ping Control..................................................................................................................................................54
6. SPECIFICATIONS, DIMENSIONS ..........................................................................................55
Transducer and Junction Box......................................................................................................................................57
Operator Unit Cabinet.................................................................................................................................................57
7. SERVICE......................................................................................................................................58
8. CPU BOARD SETUP PROCEDURE........................................................................................59
CPU PCA 6742VE........................................................................................................................................... 59
Master Reset Procedure ................................................................................................................................... 60
Upgrading Software......................................................................................................................................... 60
9. APPENDIX, MISCELLANEOUS DRAWINGS.......................................................................61
Fig. 9.1 Transducer Selector Connection ........................................................................................................ 62
Fig. 9.2 Transducer Selector .......................................................................................................................... 63
Fig. 9.3 Cable Gland Connection..................................................................................................................... 64
Fig. 9.4 EMC Mounting Kit............................................................................................................................. 65
10. WARRANTY AND UTILIZATION.........................................................................................66
Warranty:.......................................................................................................................................................... 66
Utilization: ....................................................................................................................................................... 66
11. NOTES ........................................................................................................................................67
12. INDEX.........................................................................................................................................68
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Chapter: 1. Introduction
1. Introduction
System Summary
GDS101 is a navigation echo sounder with a large high resolution graphic LCD. The echo sounder graphics
are continuously shown on the LCD along with complete navigational details.
The colour bar:
Day vision Night vision
Weak signal
Strong signal
Light purple
Green
Light green
Red
Dark red
Black
Weak signal
Strong signal
Aqua
Green
Yellow
Purple
Red
Black
It is possible to connect an external printer to the operator unit. The sounder contains a 24 hour history
memory that can be printed out. Depth, time and all available navigation data are stored continuously so that
the last 24 hours of information is always available. All this information may also be printed on the external
printer. All IMO requirements are met or exceeded. Comprehensive interfaces are available including IEC
61162-1:2007(E) (NMEA 0183) inputs and outputs.
Transducers
GDS101 is prepared for connection to transducers of the following frequencies: 38, 50 and 200 kHz. One or
more of the transducers may be connected at the same time, and the desired transducer may be selected from
the operator panel.
Operator Panel and Data Entry
The operator unit contains a graphic LCD and a keyboard with xed keys, soft keys and a rotating encoder.
The function of each soft key button depends on the active screen, and the buttons are labeled on the lower
rim of the LCD. The display is backlit, and contrast and backlight intensity may be adjusted by the user.
The echogram is displayed continuously on the LCD and stored in the 24 hour history memory. An optional
external printer is used if hard-copy documentation is required. The operator unit is normally ush mounted.
Power supply options are 115/230 V AC or 24 V DC. The power consumption is app. 70 Watt at 115/230 V
AC or 50 Watt at 24 V DC.
Several screens may be selected to enter various settings and parameters. Each screen has a selection of soft
key buttons. Screens 1 through 3 are primary operation screens with appropriate operator controls. Screens
4 through 10 are parameter setup and system supervision screens. The various screens will be described in
detail later.
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Chapter: 1. Introduction
Recorded Data Storage
The measured depth and other navigational data is continuously stored in the 24 hour history memory. A
standard printer HP Deskjet or Epson D88/LQ300 (all with Centronics parallel interface) may be connected
for paper copy. Ask local representative or manufacturer for specications. (Contact details on title page).
Warning!
False bottom echoes may occur when:
• The bottom is out of range.
• Extreme noise conditions are present.
• Bottom signal may be lost for other reasons, like wakes or aeration below transducer.
Fig. 1.1 Main Display Unit Panel Layout
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Chapter: 1. Introduction
Navigator
Computer system
Cabinet
Analogue depth information
Transducer
junction box
0 - 10V / 4-20 mA
230/115 VAC/24 VDC
2 x 2.5 sq. mm.
Screened
Yard Supply
NMEA 0183
NMEA 0183
NMEA 0183
(RS-232 C) Superstructure
Hull
External alarm
Standard Supply except Yard Supply cables
1 pair each
xducer,
1.5 mm 0-100 m cable
2.5 mm 100 - 300 m cable
screened
Yard Supply
Optional external keyboard
Optional remote VGA or
LCD monitor
Remote transducer
selector
100/200 ppnm
Steel
pipe
(Yard Supply)
Transducer tank
NMEA 0183
IR301
Depth repeater
External printer
Speed log
Recording
of history to
Compact Flash
Fig. 1.2 System Diagram
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Chapter: 1. Introduction
Interfacing
The GDS101 has several interface possibilities.
Outputs
• Transmitter trigger pulse and bottom pulse outputs. See “Transmitter trigger pulse and bottom pulse
outputs” on page 46.
• Analogue output 0 - 10 V or 4 - 20 mA. See “Analogue interfaces” on page 46.
• IEC 61162-1:2007(E) (NMEA 0183). See “NMEA interface” on page 46.
• External alarm relay output. See “Alarm relay” on page 45.
• External printer. See “External Interface Ports” on page 49.
• External VGA monitor. See “External Interface Ports” on page 49.
Inputs
• Log input 100/200/400/20000 pulses per nautical mile. See “Log Pulse input” on page 45.
• IEC 61162-1:2007(E) (NMEA 0183) interface input of position, heading, speed and UTC. See
“NMEA Setup” on page 52.
• Remote control and synchronisation of transmitter. (Option). See “External Ping Control” on page 54.
• Remote transducer switch. See “Fig. 9.2 Transducer Selector” on page 63.
• Remote keyboard. See “Remote Keyboard” on page 50.
• External alarm reset. See “External alarm reset function” on page 45.
Alarms
Shallow and deep water alarms may be selected from screen 1. See “Fig. 2.2. Screen 1, Primary Operation
screen.” on page 13. A potential free relay contact is provided in GDS101 for interface to external alarm
systems.
Options
Repeaters
Graphic CRT, LCD display or digital depth slave repeaters may be connected to the system. Along with the
graphic display repeaters, there may also be installed a remote keyboard.
Remote Sounding Control
* This option lets the GDS101 being remote controlled in synchronized, burst or single ping modes.
Autorange
This option will automatically adjust the depth range to maintain the bottom contour within the middle half
of the screen.
Sound Speed Calibration
* This option will enable adjustment of the sound speed value used for the depth calculations.
*Note: These options can not be used with IMO approval.
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Chapter: 1. Introduction
SCREEN 1
20%
GAIN
25%
TVG
line
MARK
160m
ALARM
50m
ALARM
off
PRINT ▲▼
N 13°13.20' E 079°44.5' 14kts 145°0 m 15:03 GMT
200m PICT.SPEED 0:08/div
80
160
50
▲
▼
80.0
m
Depth Range
Setting.
Display Speed
Setting
Day/night
vision
Screen
Backlight
Screen Select Button
Press the Screen Select
Button repeatedly to cycle
through the primary
"Soft-Key" Screens
Soft-Key
Legend on
Screen 1
Soft-Key
Function
Buttons
Encoder Knob
Rotate encoder while
keeping a key pressed
to change setting
or menu/screen
GDS101 PRIMARY FUNCTIONS
Fixed-Key
Functions
Gain Adjustment
0 % - 100 %
or Auto
TVG Adjustment
0 % - 100 %
Print Marker
or
Screen Dump
Printer
Start / Stop
Shallow
Alarm
Setting
Deep
Alarm
Setting
Large Depth
Digits
On / Off
Frequency
Selection
38 / 50 / 200 kHz
System
Off
On = Any Key
( Main Switches and
Fuses inside Cabinet )
Print Marker
or
Screen Dump
Printer
Start / Stop
Power
Adjustment
10% - 100%
Draught
Setting
Soft-Key
Legend on
Screen 2
Soft-Key
Legend on
Screen 3
small
DIGITAL
50kHz
FREQ
off
SYSTEM
off
PRINT
line
MARK
SCREEN 2
100%
POWER
0.00m
DRAUGHT
SCREEN 3
Fig. 1.3 GDS101 Primary Functions
1 % - 100 %
Off/small/large
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Chapter: 2. Operation
2. Operation
When the installation is complete, and power is connected to the operator unit, the system is switched on-off
by power switch(es) inside the cabinet. See “Fig. 4.4. Voltage selection connectors and fuses, terminal
board.” on page 40.
Parameter entry
The xed function and soft key buttons of the various screens along with the rotating encoder, facilitates
entry of parameters, setpoints and other data. The following owchart illustrates the procedure for changing
settings and entering data. The various screens are shown in detail in the operation section.
Any Screen
Any valid fixed or soft key
Press button
once
Rotate encoder in either
direction to obtain desired
state or setting
Keep button pressed
Advances to next
fixed state or
value
Release
button
Check for
desired result
Fig. 2.1 Setting and Parameter Entry Flowchart
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Chapter: 2. Operation
Example of parameter entry
Suppose you want to enter a value of 800 m for the depth range. Press the DEPTH RANGE button several
times and observe the depth range sequencing through the standard values 10, 50, 100, 500, 1000 m. Press
till the range is 500 m. Then press the DEPTH RANGE button again and keep it pressed while you turn the
encoder clockwise. Observe the depth range increase to 800 m, release the encoder and the DEPTH RANGE
button. You could also have started from the standard value 1000 m and decreased to 800 m by turning the
encoder counter-clockwise.
Operation Screens
Each of the operation screens contains a graphic picture and a selection of up to 6 soft key buttons. The
various screens are selected by keeping the SCREEN SELECT button pressed and rotating the encoder
in either direction. Turning the encoder clockwise cycle the screens in the sequence 1 to 10, and counter
clockwise rotation cycles the screens in the sequence 10 to 1. Screens no. 1, 2 and 3, covering the primary
functions, may also be cycled by repeatedly pressing the SCREEN SELECT button.
The screen layouts are outlined in g. 2.2 through 2.11. The various soft key functions are described with
each screen.
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Chapter: 2. Operation
Primary Operation Screens
Fig. 2.2. Screen 1, Primary Operation screen.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from screen 2.
Soft key Name Range/value Default value Description
1GAIN 0 - 100 % 20 % Gain adjustment. (100 % is max. gain). See “Gain” on page 25.
2TVG 0 - 100 % 36 % Time Variable Gain adjustment. (0 % is max suppression).
Suppression of echoes from 0 - 40 meter. See “TVG” on page 25.
3MARK Line Print mark line/print screen.
4PRINT On/off Off Start and stop of continuous printing. (If printer is switched off or
not connected, this button is “Dimmed”).
5ALARM ▲ 0 - 100 m 0 m Shallow water alarm adjustment. See “Alarm Settings” on page 26.
6ALARM ▼ 0 - 1600 m 100 m Deep water alarm adjustment. See “Alarm Settings” on page 26.
The currently selected transducer (frequency) is indicated at the bottom of all screens along with optional
transducer position, e.g. 200 kHz/FWD. (DRT0.00 m and 200 kHz/FWD are toggling with 1 sec. interval.)
Selection of the transducer position reference is performed in screen 10. See “Fig. 2.11. Screen 10,
Oscilloscope screen.” on page 22.
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Chapter: 2. Operation
Fig. 2.3. Screen 2, 2nd Operation screen.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from this screen.
Soft key Name Range/value Default value Description
1DIGITAL Off, small, large Off Control of digital depth indication.
2FREQUENCY 38*/50/200 kHz 50 kHz Transducer selection. (Have to be “installed “ in screen 10,
soft key 2 and 3). See “Fig. 2.11. Screen 10, Oscilloscope
screen.” on page 22.
3MARK Line Print mark line/dump screen.
4PRINT On/off Off Start and stop of continuous printing. (If printer is switched
off or not connected, this button is “Dimmed”).
5Not used.
6SYSTEM On/off On Switch system off. Switch on with any button. (NOTE:
There is still power on the GDS101).
* Note: 38 kHz may vary if other frequency options are installed.
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Chapter: 2. Operation
Fig. 2.4. Screen 3, 3rd Operation screen.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from screen 2.
Soft key Name Range/value Default value Description
1POWER 1 - 100 % 50 % Transmitter power adjustment. See “Output
Power” on page 25.
2DRAUGHT -99.99 - 99.9 m 0.00 m Draught correction, must be set individually
for each frequency. For draught, see “Draught”
on page 25.
3 (Option) SOUND 1400 - 1550 m/s 1500 m/s Sound speed setting, (option).
4 (Option) AUTORANGE On/off Off Autorange control, (option).
5 (Option) PING Continuous, edge, level,
single
Continuous Ping control, (option). See “External Ping
Control” on page 54.
6 (Option) VESSEL Merchant 1, merchant 2,
navy 1, navy 2
Merchant 1 Upper right screen icon selection, (option).
Note: Soft keys 3, 4 and 5 controls optional functions.
Note: If options are installed afterwards by changing the logic on the I/O board, it is also possible here on
screen 3 to select vessel icon (soft key 6).
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Chapter: 2. Operation
Secondary Operation Screens
6).).
Fig. 2.5. Screen 4, Calendar and clock setting.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from screen 2.
Soft key Name Range/value Default value Description
1PRINTER Manual/auto Manual External printer start options.
Auto: Printer start, if depth alarm is activated.
2Not used.
3Y(EA)R.MONTH 01.03 -> Calendar year setting.
4DAY 1 - 31 Calendar day setting.
5HOURS 0 - 23 Real time clock hours setting.
6MINUTES 0 - 59 Real time clock minutes setting.
Note: If GPS is connected, soft key 3, 4, 5 and 6 are controlled by GPS.
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Chapter: 2. Operation
Fig. 2.6. Screen 5, Language and units of measure setup.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from screen 2.
Soft key Name Range/value Default value Description
1SET LOW 10 - 250 kHz (24, 28,
30, 33, 38 kHz)
38 kHz Adjust indicated frequency of lower frequency
channel.
Note. Active only if 38 kHz is selected as
transducer frequency on “Fig. 2.3. Screen 2, 2nd
Operation screen.” on page 14.
Also see “Low frequency indication” on page 51.
2LANGUAGE English, French,
Spanish, Russian,
German, Norwegian
English Screen language selection.
3DEPTH Meters, feet, fathoms,
braccias
Meters Unit of measurement for depth.
4PICT.SPEED Min:sec Min:sec Unit of measurement for picture speed. (See Note
below).
5VESSEL SPD Knots, km/h, mi/h Knots Unit of measurement for vessel speed.
6SOUND SPD m/sec, ft/sec m/sec Unit of measurement for sound speed.
Note: If a speed log is connected, on NMEA inut or pulse input, it is possible to select different “PICT.
SPEED” units. See “Language and Units of Measure” on page 51.
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Chapter: 2. Operation
Fig. 2.7. Screen 6, Interface setup screen.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from screen 2.
Soft key Name Range/value Default value Description
1PULSE 100/200/400/20000 100/NM Speed log input pulse rate. (Pulses per nautical mile).
2ENABLE
(option)
Positive/negative Positive Select polarity of external sync signal (remote sounding
control option).
3NMEA OUT async (1s)/
(sync)hronous
async (1s) Select between synchronous (with sampling rate) and
asynchronous (1s period) NMEA output update.
4ALARM ID 0 - 999 0 Alarm identier, used in NMEA alarm sentences to be
uniquely recognized by the listener.
5UPPER 0 - 199 m 0 m Analogue output shallow water limit = 0 V (4 mA).
6LOWER 1 - 200 m 50 m Analogue output deep water limit = 10 V (20 mA).
Note: Soft key 2 controls optional function.
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Chapter: 2. Operation
Fig. 2.8. Screen 7, History Memory Control Screen.
This screen shows the main graphic echo gram. Left hand digital indication may be enabled from screen 2.
Soft key Name Range/value Default value Description
1HISTORY On/loop/extended/off On On/Off: Start/stop (keep) history recording.
Loop: The oldest recordings le will be deleted when
the disk is full.
Extended: The recordings will stop when the disk is
full. (Except for the latest 24 hours, which are always
available).
For more info, see “History Memory” on page 27.
2HISTORY Recording/playback Recording Record/playback of history.
3HIST. HOUR -23 - 0 hour History playback spooling, hours. (Note: Active only
in playback mode).
4HIST. MIN -59 - 0 min History playback spooling, minutes. (Note:Active
only in playback mode).
5MARK Line Print mark line/dump screen.
6HIST. FRMT Text/bin Text Toggle between text and binary recording format.
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Chapter: 2. Operation
Fig. 2.9. Screen 8, NMEA control screen.
This screen shows list of received or transmitted NMEA messages and half screen echogram.
Soft key Name Range/value Default value Description
1SCREEN Print Print screen.
2BAUD 4800/9600 4800 NMEA baud rate selection.
3IN/OUT COM 1/COM 2 COM 1 I/O port selection. The text window shows received or
transmitted messages on the presently selected channel
(COM 1 or COM 2). See “NMEA interface” on page 46.
4MESSAGE DPT, DBS, DBT,
DBK, PKSKP,
CHECK SUM,
EN250, EN250 D#,
XDR, ALR
DPT: On
DBS: Off
DBT: Off
DBK: Off
PKSKP: On
CHECK SUM: On
EN250: Off
EN250 D#: Off
XDR: Off
ALR: Off
Select if message should be on/off by soft key 5.
CHECKSUM, select if PSKPDPT should contain
checksum or not by soft key 5. See “NMEA Setup” on
page 52.
5STATUS On/off Select if MESSAGE should have “On or “Off” status.
6DISPLAY Off/input/output Input Selects what kind of information to be displayed.
Off: None.
Input: Received NMEA messages.
Output: Transmitted NMEA messages.
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