Kongsberg Simrad ST90, Reference Manual

Page: 570 / 690

568
442704/A
• When you select sensor type ITI-FS, only one datagram can be selected; ITI-FS
Datagrams. This is a group of datagrams that allows the ST90 system to import
information from trawl systems.
• When you select sensor type PI50, only one datagram can be selected; PI50
Datagrams. This is a group of datagrams that allows the ST90 system to import
information from catch monitoring systems.
• Select sensor type External Objects to import position data from buoys and other
devices transmitting their geographical position. The external objects are shown as
hexagonal markers in the echo presentation.
Talker ID
If you want to specify a dedicated Talker ID for the datagram format, it can be defined
here.
Every NMEA datagram starts with a dollar ($) character. The "talker identifier" (ID)
with two characters follows immediately after the dollar character. The Talker ID is
followed by three characters that define the
type of datagram. The Talker ID identifies
the system that sends the datagram. You can leave this box empty. This means that
blank characters are inserted into the datagram. You may also specify two characters
that identifies the ST90 system as the "sender". In most cases, you will only need to
define a Talker ID if your receiving system needs it for a specific purpose.
Example
$ESDBT,x.x,f,y.y,M,z.z,F*hh<CR><LF>
In this NMEA depth datagram, the Talker ID is "ES", which means "echo
sounder".
Tip
If you do not have a computer keyboard connected to your ST90 system, select the
Keyboard
button to open an on-screen keyboard.
Offsets
The physical location of each sensor must be defined with reference to the vessel’s
coordinate system.
The position of certain sensors must be defined as an offset to the Ship Origin in the
coordinate system to maximize performance. These offset values are all required to
allow the ST90 system to give you as accurate information as possible. The degree
of accuracy offered by the ST90 system is directly related to the accuracy of the
information you enter on the
Installation Parameters
pages.
Simrad ST90 Reference Manual