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Raymarine S1/ST6002 and NMEA

  • Thread starter Bjarke M. Christensen
  • Start date
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Bjarke M. Christensen

Jan 1, 1970
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Just got a S1 wheelpilot for my ship. Trying to plan the connections to the
other instruments

The S1 computer has got NMEA input and output, but there is also an input on
the back of the ST6002 control head.

Whats the difference between these two inputs ? If any ?? Can I use both and
maybe eliminate the need for a NMEA mux ?

Bjarke
 
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Bjarke M. Christensen

Jan 1, 1970
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The manual gives a fine list of sentences supported, but it say "on the S1
computer". There not a single word on the capabilities of the st6002 input
.....

Bjarke
 
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Bjarke M. Christensen

Jan 1, 1970
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Read a lot of manuals and web pages last night. The ST6002 display
apparently have the ability to display navigational messages on the display.
The manual says "shows heading, locked course and navigational data, and up
to 7 data pages". Combined with your information that they typical dont
relay NMEA sentences on the seatalk bus, one could get the thesis, that you
have to supply the GPS/Navigator NMEA to both. To the S1 computer in order
to stear on the navigational data and to the display to (manually) browse
through the data on the display.

Would that make sense or is that to negative on Raymarine ??

Bjarke
 
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Rick Morel

Jan 1, 1970
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Read a lot of manuals and web pages last night. The ST6002 display
apparently have the ability to display navigational messages on the display.
The manual says "shows heading, locked course and navigational data, and up
to 7 data pages". Combined with your information that they typical dont
relay NMEA sentences on the seatalk bus, one could get the thesis, that you
have to supply the GPS/Navigator NMEA to both. To the S1 computer in order
to stear on the navigational data and to the display to (manually) browse
through the data on the display.

Would that make sense or is that to negative on Raymarine ??

Bjarke

No, you only have to supply NMEA to one. I have the S1, with the GPS
connected to the computer. The display shows the GPS NMEA info, SOG,
XTE, etc.

My experience with Raymarine, about 10 years, has always been that
NMEA data fed in will propagate along the Seatalk as well.

Rick Morel
 
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Bjarke M. Christensen

Jan 1, 1970
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Anyway... it indicates that I should opt for feeding the NMEA to the S1 even
if the GPS is next to the ST6002. But's it's OK. I will need to bring the
NMEA signal back to the main wiring closet for other purposes anyway.

Thanks for your input.
 
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Rick Morel

Jan 1, 1970
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I also thought this, but was told by an electronics installer that the
st600x displays don't translate the NMEA data into SeaTalk. They only
display it. The course computer does provide the translation. I have no
direct experience with this, so I'd be interested in having this info
verified.

-- Geoff


I'm not aboard "home" at the moment, but I checked the manuals on my
computer:
---------------------------------------------------
The S1 has a single NMEA input/output to
receive and transmit information from
NMEA equipment.

S2 and S3 systems have two sets of NMEA
inputs/outputs to receive and transmit
information from NMEA equipment.
--------------------------------------------------

You can also use the SmartPilot with any navigator or wind instrument
that transmits National Marine Electronics Association (NMEA) 0183
data.
The SmartPilot control unit can display SeaTalk and NMEA instrument
data in a user-defined selection of data pages.

If you have equipment on your boat that transmits or receives NMEA
0183 data (e.g. GPS), you can connect this equipment to the
SmartPilot. NMEA equipment can be connected in any combination of
these ways:
• using the SmartPilot computer NMEA input/output
• using the NMEA input on the back of the SmartPilot controller.
(Refer to the Controller handbook for NMEA data details)
• using the SeaTalk/NMEA interface (part number: E85001) to convert
the NMEA data to SeaTalk data
------------------------------------------------------------------

I just remembered my GPS line ran next to the computer and hooking it
up there.

Anyway that last paragraph above seems to say it doesn't matter which
input you use, the unit will use the data when in the "Track" mode and
will display the data.

Rick
 
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Rick Morel

Jan 1, 1970
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Well, that's the way that I would like to think that it works, but I'm
still not convinced. As it says, "The SmartPilot control unit can
display SeaTalk and NMEA instrument data in a user-defined selection of
data pages."

I know that it can display the data, but I didn't think that the ST600x
controller converts it to SeaTalk. I just have this feeling that
RayMarine wants to see you yet another box to do the conversion, as
mentioned in the last bullet above (SeaTalk/NMEA interface).

-- Geoff

I'm kind of getting lost here. I have a Garmin GPS connected via NMEA.
The S1 uses the GPS info to go to a waypoint or follow a route, and
displays the info from the GPS - goto a waypoint on the GPS, hit
"Track" on the S1, it beeps and gives a turn direction and course, hit
"Track" again and the S1 steers to the waypoint or follows the route.

The only connection between the S1 computer and controller is Seatalk,
so it must be converting NMEA to Seatalk.

Rick
 
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Bjarke M. Christensen

Jan 1, 1970
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Is the NMEA signal from your Garmin feed (physical) to the ST6002 dispaly or
to the S1 computer ?


Bjarke
 
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Rick Morel

Jan 1, 1970
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Is the NMEA signal from your Garmin feed (physical) to the ST6002 dispaly or
to the S1 computer ?


Bjarke

The Garmin GPS NMEA output is connected to the S1 computer. The S1
will go to a waypoint or follow a route, and display data from the
GPS. The display/controller is connected to the computer via only
Seatalk.

Rick
 
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Rick Morel

Jan 1, 1970
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But, before I digress...the conclusion there is that the ST600x will
display NMEA data which is presented to it, but it won't translate those
sentences into SeaTalk format. Thus if you have another SeaTalk based
display on the boat, you won't see the data being fed to the ST600x with
the NMEA input. To convert NMEA to SeaTalk, you need a box which
bridges the two.

I'm not 100% sure what you mean when you say a "Garmin GPS". Are you
talking about a GPS antenna or a chartplotter? For example, I have a
Garmin GPS antenna which connects to my course computer via NMEA and I
also have a NorthStar chartplotter connected via NMEA and a RayMarine
chartplotter connected via SeaTalk. All of these talk to one another
and my ST6001 just fine. However, let's say that I had a wind
instrument connected to my ST6001 via NMEA. The ST6001 would show the
wind data, but my RayMarine C80 wouldn't display the wind data.


-- Geoff


Geoff, I don't know how I could have been clearer. I wrote:

"I have a Garmin GPS connected via NMEA.
The S1 uses the GPS info to go to a waypoint or follow a route, and
displays the info from the GPS - goto a waypoint on the GPS, hit
"Track" on the S1, it beeps and gives a turn direction and course, hit
"Track" again and the S1 steers to the waypoint or follows the route."

A Garmin _GPS_ the S1 uses to go to a waypoint or follow a route.

I don't have any other Raymarine instrument displays, but I have to
believe the S1 does translate NMEA to Seatalk because the Garmin NMEA
is physically connected to the S1 Computer, and the S1
Display/Controller, which is physically connected via Seatalk only,
displays the GPS data. So the NMEA data has to be available on the
Seatalk buss for the display to get it, doesn't it?

Rick
 
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Rick Morel

Jan 1, 1970
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Rick,

The RayMarine S1 is a course computer. It has has no display. How do
you input the course to it? The ST600x and any other controller will
beep when it's time to change waypoints.

From what I can tell, your Garmin GPS antenna is connected to the S1
course computer, which is translating the lat/long into SeaTalk. There
has been no argument about this. The whole discussion has been about
connecting a NMEA instrument to the ST600x NMEA input and the ST600x
translating the NMEA data to SeaTalk. Your antenna is connected to the
S1 course computer and not the ST600x controller. What are you talking
about?

-- Geoff


Geoff, one more time and I give up.

I have a Garmin Chartplotter GPS. It's NMEA is connected by wires to
the S1 Computer NMEA connector.

The S1 Controller (display) is connected to the S1 Computer by wires
via Seatalk. This is the normal setup.


The S1 Controller will display data from the Garmin Chartplotter, SOG,
COG, XTE, Waypoint name, etc VIA the SEATALK.

Goto a waypoint or activate a route on the Garmin Chartplotter. Press
the "Track" button on the S1 Controller and S1 does some flashing and
figuring, the beeps and displays the new course and to turn port or
starboard. Press the "Track" button again and the S1 changes course
and steers to the waypoint or route segment.


NMEA Seatalk
[Garmin Chrtpltr] >--->----> [S1 Computer] <>--<-->--<> [S1 Display]


Rick
 
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Bjarke M. Christensen

Jan 1, 1970
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OK. So the S1 computer translate to Seatalk. We guess that is not the case
if you connect the NMEA signal to the ST6002 display.

--
Maxi 999 - 'Escape' - Hundige



Rick Morel said:
Rick,

The RayMarine S1 is a course computer. It has has no display. How do
you input the course to it? The ST600x and any other controller will
beep when it's time to change waypoints.

From what I can tell, your Garmin GPS antenna is connected to the S1
course computer, which is translating the lat/long into SeaTalk. There
has been no argument about this. The whole discussion has been about
connecting a NMEA instrument to the ST600x NMEA input and the ST600x
translating the NMEA data to SeaTalk. Your antenna is connected to the
S1 course computer and not the ST600x controller. What are you talking
about?

-- Geoff


Geoff, one more time and I give up.

I have a Garmin Chartplotter GPS. It's NMEA is connected by wires to
the S1 Computer NMEA connector.

The S1 Controller (display) is connected to the S1 Computer by wires
via Seatalk. This is the normal setup.


The S1 Controller will display data from the Garmin Chartplotter, SOG,
COG, XTE, Waypoint name, etc VIA the SEATALK.

Goto a waypoint or activate a route on the Garmin Chartplotter. Press
the "Track" button on the S1 Controller and S1 does some flashing and
figuring, the beeps and displays the new course and to turn port or
starboard. Press the "Track" button again and the S1 changes course
and steers to the waypoint or route segment.


NMEA Seatalk
[Garmin Chrtpltr] >--->----> [S1 Computer] <>--<-->--<> [S1 Display]


Rick
 
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Rick Morel

Jan 1, 1970
0
OK. So the S1 computer translate to Seatalk. We guess that is not the case
if you connect the NMEA signal to the ST6002 display.

Actually, I don't see why not. I'd try it, but we're out cruising for
a bit and don't want to start taking things apart.

The way I understand the manual, it should. I don't find the manual
confusing or ambiguous. It basically states you can connect NMEA
equipment to the computer or the display. Sounds simple and
straightforward to me. Otherwise how could you steer by a NMEA wind
indicator, GPS or whatever?

Rick
 
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Rick Morel

Jan 1, 1970
0
Rick,

The issue here seems to be with terminology. You have a S1 course
computer (corepack in RayMarine terminology) and some form of control
head. There is no such thing as a S1 controller. You probably have
either an ST70, ST600x, ST700x or ST800x (where x=1 or 2).

Whatever the controller is, it came with the Raymarine S1 Wheelpilot
that I bought, along with the rudder position indicator and fluxgate
compass.
The S1 corepack will translate the NMEA lat/long data into SeaTalk.

It translate a lot more as stated. XTE (Cross Track Error), SOG (Speed
Over Ground), COG (Course Over Ground), Track, etc. All the normal
NMEA stuff used by GPS chartplotters, receivers, black boxes, dat ting
what shows you where you be, where you goin' and how long it's going
to take to get there.

Note
that if the GPS antenna was connected to the NMEA input on the
controller, that it wouldn't translate (or even understand) it.

I wouldn't think anything could translate from a GPS _ANTENNA_. If you
mean a GPS unit that outputs NMEA, I don't see why not. As in the
previous post, the Raymarine manual says you can connect NMEA stuff to
either the computer, controller or an external NMEA to Seatalk
converter. That seems simple and straightforward to me.
The rest
of your data (depth, wind, etc) is most likely coming from SeaTalk
instruments and no translation is required.

Unless you have a NMEA speaking fathometer, wind instrument, etc.
Again, as per the manual.

Rick
 
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Rick Morel

Jan 1, 1970
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I guess that you just don't get it. End of discussion since we're
talking at one another instead of to one another.

-- Geoff
www.GeoffSchultz.org


I sure don't get it. I originally answered a simple questiion with a
simple answer, then had to answer it again and again.

Rick
 
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