Kongsberg Simrad ST90, Reference Manual

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Setting up the interface for speed log input
In order to operate correctly, the ST90 system requires input from a speed log. In most cases
a suitable sensor is already installed on the vessel. A global positioning system (GPS) with
a compatible output format can also be used. To select which sensors to install, use the
Sensor Installation
page. The vessel speed is shown on the top bar if you have enabled this
in the
Display Options
dialog box.
Prerequisites
This procedure assumes that:
• You have a vacant interface port on your Processor Unit.
• You are familiar with NMEA and other relevant datagram formats.
• You know how to set up the parameters for serial and local area network (LAN)
communication.
• The interface port is set up with the correct communication parameters.
• The ST90 system is turned on and operates normally.
• The new sensor is physically connected to the ST90 system using a serial or network
cable. The sensor is turned on and in normal operation.
Neither tools nor instruments are required.
Context
Note
The input from a speed log is essential for operation. Without speed information, the ST90
system will neither be able to present correct navigational information, nor compensate
for vessel movements. This lack of compensation will prevent the system from providing
correct echo information.
The
Sensor Installation
page allows your ST90 system to communicate with external sensors
and systems. You must specify which communication port to use (LAN (Local Area
Network) or serial port). You can type a custom name to identify the sensor import. In the
list of valid datagram formats, select the format(s) to be accepted by the ST90 system.
Note
Just making changes and selecting
OK
at the bottom of the page will not install anything.
Select what to install, define the relevant parameters, and then select
Add
.
Maintenance procedures