Raymarine Wiring...

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Morepower

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Hi Guy's... A little advice if possible please.... I've been steadily improving my electronics package on my boat (from basically nothing).... So far I have fitted these items

St60 Tridata
St60 Wind instrument
Raystar RS125 GPS
230E VHF/DSC Radio
RC530 plus Chartplotter

I have it all connected via the Seatalk bus and everything is working as it should.... However, I'm looking at adding a Raymarine Gyro 2 and fluxgate compass... This has the Nema0183 and Seatalk output like the VHF/GPS and Rc530 Plotter... At the moment I've not connected any of the Nema wiring together and I'm wondering if this is incorrect?...
With this in mind, do I just connect the gyro2 system via seatalk or connect all the nema0183 together with the Seatalk....

At some point in the near future, I'm hoping to be able to afford an autopilot system, and have read it's best to use the Nema connections as they are faster...

Regards

Tim
 
NMEA0183 links are single point-to-point serial channels, so you certainly shouldn’t just “connect them all together”.

With an all-Raymarine system the simplest and best approach will generally be to use their Seatalk bus. I haven’t heard the idea that standard NMEA is faster before - the wire speed on both is 4800bps, and Seatalk’s binary packets are more compact than wordy NMEA0183. If there is a grain of truth there it will relate to collisions on a shared bus, so you could consider wiring just one NMEA link from the fast gyro to the pilot to give the pilot the best chance of hearing the gyro clearly - but I would tend not to unless the seatalk wasn’t working well, which seems unlikely.
 
Morepower said:
However, I'm looking at adding a Raymarine Gyro 2 and fluxgate compass... This has the Nema0183 and Seatalk output like the VHF/GPS and Rc530 Plotter... At the moment I've not connected any of the Nema wiring together and I'm wondering if this is incorrect?...
With this in mind, do I just connect the gyro2 system via seatalk or connect all the nema0183 together with the Seatalk....
Click to expand...

You have to connect the Gyro 2 to your plotter via NMEA, as this is how the unit outputs the fast heading data. You also have to connect the Gyro 2 to SeaTalk, as this is how the plotter calibrates the Gyro 2.

You haven't mentioned having radar or an autopilot. Do you have one or both? If not, why are you adding Gyro 2?
 
pvb said:
You have to connect the Gyro 2 to your plotter via NMEA, as this is how the unit outputs the fast heading data. You also have to connect the Gyro 2 to SeaTalk, as this is how the plotter calibrates the Gyro 2.
Click to expand...

Listen to this rather than my post :encouragement:. I'm not familiar with this particular unit and was talking in general terms.

Pete
 
This is a link to the Gyro Plus 2 Manual:

http://c470.jerodisys.com/470Lib/smarthdg.pdf

It seems quite comprehensive, and will perhaps help you sort out the installation.

Edit: I've just scanned the manual and it says:

WARNING: Calibration requirement
You MUST calibrate the Smart Heading System after installation
using a suitable Raymarine autopilot or Pathfinder Plus display (see
Chapter 3: Calibration).

So it may not be of much use, unless you can calibrate from your display..
 
Last edited:
Thanks for the replies everyone..

Just to clarify...

PVB, As per my original post, I'm hoping to add an autopilot at some point soon

Ian, I believe the RC530 Plus can calibrate/zero the sensors... (oh and thank you for the link to the manual)

Regards

Tim
 
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