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- User Manual
4. C-LINK
C-Link system is a feature which allows to sharing the same Navigation Data (Route Name,
Destination ID & Position, Next Waypoint ID & Position, Total Route length, Fuel Consumption
Rate, ETA, TTG etc.) between two chart plotter units linked via serial I/O port.
4.1 C-LINK SERIAL CONNECTION
The two chart plotters should be connected via serial ports. Any of the available ports can be
used, the software will recognize automatically the serial ports used.
A typical connection is as follows:
Chart Plotter 1
Chart Plotter 2
TX
RX
RX
TX
GND
GND
4.2 C-LINK NAVIGATION DATA TRANSFER
The chart plotters can be set to operate in two modes:
•
MASTER mode (Primary Chart Plotter)
• SLAVE mode (Secondary Chart Plotter)
When the navigation is activated on the Master chart plotter, the C-Link navigation data will be
continuously sent to the Slave until the navigation is active.
If the Master is navigating to a Single Destination, the Slave will show the Destination position
and activate the navigation to it.
If the Master is navigating to a Route, the Slave will show the Route Leg composed by the
Destination and the Waypoint after the Destination (Next Waypoint) and activate the navigation
to it.
Any variation to the current C-Link Navigation Data will be transferred from the Master to the
Slave. The Slave will be provided with a dedicated page to show the C-Link Navigation Data
received from the Master, selected from the Route menu:
[MENU] + “Route” + [ENTER] + “Report” + [ENTER]
A data page (different from the Route Data Report page) appears on the screen, that shows the
C-Link Navigation Data sent from the Master.
4.3 OPERATIONS
INTRODUCTIVE ELEMENTS
It is important remark, once more, that this function does not transfer the whole route but just
the information relative to the navigation. Such information will be removed from the Slave chart
plotter as soon as the navigation is terminated.
C-Link navigation data is exchanged by using two NMEA-0183 C-MAP proprietary sentences:
$PCMPN,1 and $PCMPN,2.
When the navigation is activated on the Master, it starts outputting the C-Link Navigation Data.
If the Slave is connected, all C-Link Navigation Data received are stored in its memory and the
navigation is started.
The information sent by the Master consists of the following values:
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