6-18
SL520/530/631 PLUS Chartplotter Displays
Sea
Ta
lk
®
an
d NMEA
In
SeaTalk
®
and NMEA In
The display can receive a comprehensive range of data. The primary data is
described below:
Heading data should ideally contain both magnetic and true heading. If only
one is available then variation needs to be provided either manually or
automatically - see
Variation Source
on
page 5-8
.
Some other radars and chartplotters can exchange their cursors via SeaTalk.
Locked heading should be used for Course Up if available via SeaTalk.
Other data connected via a SeaTalk bus or via NMEA is generally displayed in
data boxes, e.g. depth, apparent wind angle and speed, time.
Note:
The Raymarine Fishfinder uses its own depth data, rather than any oth-
er depth data on SeaTalk. If there is no other depth data on SeaTalk, Fishfind-
er depth is transmitted. If speed and temperature data are available on
SeaTalk the Fishfinder uses this data; if this data is not on SeaTalk from other
instruments, it is transmitted by the Fishfinder.
For details of received data refer to the table in
Appendix C:SeaTalk and
NMEA Data Received and Transmitted
.
SeaTalk
The SeaTalk standard was originally developed by Autohelm (part of
Raymarine), and allows compatible instruments to be connected by a single
cable carrying power and data in/out. This means that additional instruments
and functions can be added to a SeaTalk system, simply by plugging them into
the network.
Table 6-3:
Function of SeaTalk and NMEA Data
Data
Primary Uses
Suggested Source
Heading
Heading Modes
MOB (if Speed data also available)
Autopilot,
Compass connected to SeaTalk bus
NMEA Compass*
Position
MOB (also requires speed and HDG
data)
Position data in data box and Nav
Window
Waypoints
Own vessel position
Data Log
SeaTalk GPS connected via Auxiliary JB
Existing GPS Navigator via SeaTalk bus
Existing GPS (or Loran-C) navigator with
NMEA output
Waypoint
Waypoint transfer
Existing GPS Navigator via SeaTalk bus
Existing GPS (or Loran-C) navigator with
NMEA output
Содержание 530
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Страница 48: ...2 24 SL520 530 631 PLUS Chartplotter Displays Review Your Passage Plan...
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Страница 150: ...A 4 SL520 530 631 PLUS Chartplotter Displays SL520 530 631 PLUS Displays...
Страница 156: ...B 6 SL520 530 631 PLUS Chartplotter Displays C MAP Chart Card Features...
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