raymarine st2000 nmea connection with wind and chartplotter

[smeaks]

I am using an ST2000 tiller pilot. In the manual it states you can connect wind instruments and a plotter nmea feed to allow the pilot to steer to waypoints or trim the helm to wind shifts. The lead only has three wires, i assume 12v, 0v and one for nmea input (sharing the 0v for screening). My navman plotter has an output that talks to my radio ok and my ST40 wind kit has an output too. How can i connect these to the pilot if there is only one input? If i make both outputs common to each other and then connect to the tiller input will the nmea feeds be usable or will they corrupt the data from each other.

 

[misterg]

Is it an ST2000, or an ST2000+ ?

The former has (I think) only Seatalk interface (red wire + yellow wire + screen); the latter has Seatalk + NMEA interface.

Your plotter will only output NMEA, and (I suspect) your ST40 wind will only output Seatalk.

Do you have the manuals for all the kit?

Andy

 

[smeaks]

it is the st2000, your right it has only the three cables but the manual states it will accept nmea and sea talk

 

[misterg]

[ QUOTE ]
it is the st2000, your right it has only the three cables but the manual states it will accept nmea and sea talk

[/ QUOTE ]

I'm a bit confused, as it is just the + (plus) version that accepts NMEA - are you sure that you've got the correct manual for the pilot?

If it's the 2000+ , the connection is a 6 pin plug (pin-out on page 42 of the manual). I assume yours is an older unit that just has the 3 pin 'Raymarine' plug, in which case it can only be interfaced via Seatalk - just connect the ground (screen) and yellow from the pilot to screen and yellow on any seatalk instrument (assuming they're all connected), or to the wind instrument if they aren't. Seatalk is Raymarine specific, and *isn't* NMEA, so the NMEA output of your plotter won't work.

If you have a ST series GPS repeater, this may well transfer the NMEA data from the plotter / GPS to the seatalk network, but otherwise you would need an NMEA - Seatalk converter ('bridge') - probably cheaper to get hold of a (plus) version of the TP!

Incidentally, both the ST2000 and ST2000+ manuals are here (ST2000 under 'Legacy Products'; ST2000+ under 'Current Products')

Andy

 

[smeaks]

Thanks this seems about right... it is the wind trim feature i am after so i think it will be just a straight connection to my st40.