Birdseye
Well-Known Member
An interesting exercise of techies falling over themselves to correct each other. Trouble is, I still dont know which techie is right, and which simply thinks he is.
NMEA 0183
- Thread starter Graham_Wright
- Start date
tome
Well-Known Member
I quite understand what you are saying. For some time now I've been thinking of withdrawing from this sort of debate, and I think you've helped to make my mind up.
Cheers
Tom
Cheers
Tom
tome
Well-Known Member
Graham
I think your conclusions are quite correct. I also come from an avionics background. Good luck with whatever you go for.
Cheers
Tom
I think your conclusions are quite correct. I also come from an avionics background. Good luck with whatever you go for.
Cheers
Tom
Phoenix of Hamble
Well-Known Member
As an interesting aside to this debate....
I wonder how long it will be before manufacturers start making use of established comms protocols (and interface specifications etc etc) that already use collison detection? ... or put more bluntly... is it just me, or does it seem bloody obvious that eventually the devices will have an Ethernet interface onboard, and use IP as the transport for NMEA data?
That would allow the various devices to be networked far more intelligently, and would allow for the use of a technology so ubiquitous that interfaces and drivers are dirt cheap.... plus would allow software developers to start doing some really neat things with PCs or other on board technology.....
I wonder how long it will be before manufacturers start making use of established comms protocols (and interface specifications etc etc) that already use collison detection? ... or put more bluntly... is it just me, or does it seem bloody obvious that eventually the devices will have an Ethernet interface onboard, and use IP as the transport for NMEA data?
That would allow the various devices to be networked far more intelligently, and would allow for the use of a technology so ubiquitous that interfaces and drivers are dirt cheap.... plus would allow software developers to start doing some really neat things with PCs or other on board technology.....
AlexL
Well-Known Member
[ QUOTE ]
Sorry Alan, but this is a myth except for the autopilot which will put NMEA heading data onto the Seatalk bus.
[/ QUOTE ]
Not sure I agree with that
Going away from the origonal thread a bit i know but:
I have a mix of simrad and Raymarine on my new boat. I have taken the nmea output from the simrad instruments - which are taking care of log / speed / depth / wind and shoved this into the back of the ST60 autopilot controller. The seatalk bus now has all of this info on it, so the ST60 will pick up data from NMEA and put it onto the seatalk bus - at least speed / depth and wind works as I have all that info.
Oh and Tome - don't withdraw from the electronics debates, as your advice is always excellent and useful.
Sorry Alan, but this is a myth except for the autopilot which will put NMEA heading data onto the Seatalk bus.
[/ QUOTE ]
Not sure I agree with that
Going away from the origonal thread a bit i know but:
I have a mix of simrad and Raymarine on my new boat. I have taken the nmea output from the simrad instruments - which are taking care of log / speed / depth / wind and shoved this into the back of the ST60 autopilot controller. The seatalk bus now has all of this info on it, so the ST60 will pick up data from NMEA and put it onto the seatalk bus - at least speed / depth and wind works as I have all that info.
Oh and Tome - don't withdraw from the electronics debates, as your advice is always excellent and useful.
Mudplugger
Well-Known Member
Reference your last comments re: Nasa Instruments, must admit that I was under the impression that the current range, Cruiser, Clipper. Target et al, was designed to be stand-alone, although capable of transmitting info, where required to VHF & Repeater meters? General feeling at Nasa, was that as seperate instruments, would be less likely to fail, than if connected en mass? Also contributes to competitive pricing?
Ships_Cat
Well-Known Member
An interesting exercise of techies falling over themselves to correct each other.
A pretty foolish comment in my view - anyone who has read the Raymarine manuals and used the equipment will know that in many cases they are very vague (but in other cases specific) as to their non Seatalk interfacing. It is only natural that people will have differing interpretations as to what the facts are.
As always there are probably some who haven't a clue what they are talking about so muddying the waters as well. But Tome is never going to be one of those on this subject.
As a user of Raymarine products I have followed this thread with great interest (and even thrown a few PM's in the background) seeking knowledge of some of these interfacing issues. Tome's, ParaHandy's, etc's comments have been very helpful to this bystanding cat even though I know from my own experience that some of the comments made by some posters are incorrect.
John
A pretty foolish comment in my view - anyone who has read the Raymarine manuals and used the equipment will know that in many cases they are very vague (but in other cases specific) as to their non Seatalk interfacing. It is only natural that people will have differing interpretations as to what the facts are.
As always there are probably some who haven't a clue what they are talking about so muddying the waters as well. But Tome is never going to be one of those on this subject.
As a user of Raymarine products I have followed this thread with great interest (and even thrown a few PM's in the background) seeking knowledge of some of these interfacing issues. Tome's, ParaHandy's, etc's comments have been very helpful to this bystanding cat even though I know from my own experience that some of the comments made by some posters are incorrect.
John
jfkal
Well-Known Member
Point taken. However the thread is long enough already and the quality is not improving
either.
either.
AlexL
Well-Known Member
Cat
I suspect that raymarine are continually updating the software in their products so that a 2005 ST60 may transmit data that a previous model didn't this may explain why people have differing ideas of what the ST60 instruments do in this resepect- this is just guess work, but as I said earlier I have had no problems putting lots of NMEA data in the back of an ST60 and seeing the same data on the seatalk bus. The Autopilot manual especially was very specific with which NMEA sentances would be received and retransmitted by the ST6001 head.
I suspect that raymarine are continually updating the software in their products so that a 2005 ST60 may transmit data that a previous model didn't this may explain why people have differing ideas of what the ST60 instruments do in this resepect- this is just guess work, but as I said earlier I have had no problems putting lots of NMEA data in the back of an ST60 and seeing the same data on the seatalk bus. The Autopilot manual especially was very specific with which NMEA sentances would be received and retransmitted by the ST6001 head.
AngusMcDoon
Well-Known Member
Already under development, NMEA 2000
NMEA website
Uses CANbus, as used in high end vehicles for a while. CANbus is also used in plant controllers, so is well established.
NMEA website
Uses CANbus, as used in high end vehicles for a while. CANbus is also used in plant controllers, so is well established.
Ships_Cat
Well-Known Member
I agree Alex and most boatbuilders leave buying the instruments for a new build until the last minute for that reason too.
Regarding the manuals, an example of even how they change with time for no obvious reason is the manual for the ST6001+ control head.
A while back that manual included the calibration and installation information as well as the operating information for the controller. Now the manual only has the operating information and the configuration and installation information is only found in the pilot manual - however, if you are fitting the control head to an old pilot (say 100/300 which is often the case) you don't have any installation or configuration information anymore (unless you know that the old ST6001+ manual is still the pdf one on the Raymarine site or that the pilot manuals are available there for downloading - shouldn't happen). However, Raymarine don't have these issues all by themselves.
John
Regarding the manuals, an example of even how they change with time for no obvious reason is the manual for the ST6001+ control head.
A while back that manual included the calibration and installation information as well as the operating information for the controller. Now the manual only has the operating information and the configuration and installation information is only found in the pilot manual - however, if you are fitting the control head to an old pilot (say 100/300 which is often the case) you don't have any installation or configuration information anymore (unless you know that the old ST6001+ manual is still the pdf one on the Raymarine site or that the pilot manuals are available there for downloading - shouldn't happen). However, Raymarine don't have these issues all by themselves.
John
tome
Well-Known Member
[ QUOTE ]
Sorry Alan, but this is a myth except for the autopilot which will put NMEA heading data onto the Seatalk bus.
[/ QUOTE ]
Just checked the manuals and I agree that the ST60 Multi will convert NMEA to Seatalk, the ST60 graphic is less clear on whether it will display only or convert. Apologies Alan, you were clearly right!
Sorry Alan, but this is a myth except for the autopilot which will put NMEA heading data onto the Seatalk bus.
[/ QUOTE ]
Just checked the manuals and I agree that the ST60 Multi will convert NMEA to Seatalk, the ST60 graphic is less clear on whether it will display only or convert. Apologies Alan, you were clearly right!
tome
Well-Known Member
[ QUOTE ]
don't withdraw from the electronics debates
[/ QUOTE ]
Thanks. The problem is that I have to support our own users internally, and this means that often I don't have time to respond to stuff here even if I can help. Also leaves a situation where one can post some advice but not be able to respond to follow-up queries which isn't great for anyone.
If you saw the SB thread on true/app wind there's a good example of the battle of wits it can take to get a point across/forums/images/graemlins/smile.gif I'm sure it's not just me who sometimes can't be arsed either because I want to chill out and not get involved in work topics.
Cheers
Tom
don't withdraw from the electronics debates
[/ QUOTE ]
Thanks. The problem is that I have to support our own users internally, and this means that often I don't have time to respond to stuff here even if I can help. Also leaves a situation where one can post some advice but not be able to respond to follow-up queries which isn't great for anyone.
If you saw the SB thread on true/app wind there's a good example of the battle of wits it can take to get a point across/forums/images/graemlins/smile.gif I'm sure it's not just me who sometimes can't be arsed either because I want to chill out and not get involved in work topics.
Cheers
Tom
DrBob
Well-Known Member
Interesting thread, with some interesting views.
At the risk of wandering off the point, I am about to fit out a new boat and looking at a mix of Tacktick instruments and Raymarine plotter/radar/autopilot. As per usual, no real info from either supplier on integration issues. I guess in this case there is only one sender from the Tacktick system to the raymarine so there shouldnt be any interface problem.
Anyone see any problems?
At the risk of wandering off the point, I am about to fit out a new boat and looking at a mix of Tacktick instruments and Raymarine plotter/radar/autopilot. As per usual, no real info from either supplier on integration issues. I guess in this case there is only one sender from the Tacktick system to the raymarine so there shouldnt be any interface problem.
Anyone see any problems?
AlexL
Well-Known Member
Dr bob - I did some research on this as this was my origonal choice for my new boat. However as the boat already came with some high end simrad networked instruments which I would have had to throw away I decided to go with a Simrad / Raymarine Mix.
Anyhoo back to your origonal question. I got the Raymarine info of the website and worked out how many seatalk / NMEA connections in each bit and then drew up a diagram to make sure I had enough connections available.
I have a Raymarine S1G pilot and C80 plotter / radar which all talk to each other on seatalk - except you also need to an NMEA connection for the compass heading for some reason between the pilot and the C80.
I have put the NMEA info from my simrad instruments - speed / depth / wind into the back off the ST6001 pilot controller which converts it all to seatalk.
The tacktick setup should work exactly the same way. Assuming you got with the tacktick speed / depth and wind. Tacktick to an NMEA box which will take the info from your tacktick network and output as NMEA - this willl go into the back of the ST6001 pilot controller and be converted to seatalk.
If you get a C80 plotter this will output all of the nav Data (SOG / COG etc) on NMEA and you can put it into the tacktick box and get it repeated on one of the tacktick displays.
Anyhoo back to your origonal question. I got the Raymarine info of the website and worked out how many seatalk / NMEA connections in each bit and then drew up a diagram to make sure I had enough connections available.
I have a Raymarine S1G pilot and C80 plotter / radar which all talk to each other on seatalk - except you also need to an NMEA connection for the compass heading for some reason between the pilot and the C80.
I have put the NMEA info from my simrad instruments - speed / depth / wind into the back off the ST6001 pilot controller which converts it all to seatalk.
The tacktick setup should work exactly the same way. Assuming you got with the tacktick speed / depth and wind. Tacktick to an NMEA box which will take the info from your tacktick network and output as NMEA - this willl go into the back of the ST6001 pilot controller and be converted to seatalk.
If you get a C80 plotter this will output all of the nav Data (SOG / COG etc) on NMEA and you can put it into the tacktick box and get it repeated on one of the tacktick displays.
tome
Well-Known Member
Don't see any problems, you'll need the Tacktick mn100 NMEA interface which will handle all your instruments so single source NMEA into plotter/radar/autopilot. The mn100 can also handle NMEA in (including GPS) and distribute this to your wireless instruments. Be careful if using a fast compass - go direct to the radar/autopilot and not via mn100.
DrBob
Well-Known Member
Thanks to you both for the input.
Sounds like it should work then. I also have the Raymarine NMEA interface which I used with my PC running the Raytech 5 software so I can also use that if I am short of hardware connectsions. How's the C80? My local dealer is pushing the E series plotter -maybe that is another thread?
Sounds like it should work then. I also have the Raymarine NMEA interface which I used with my PC running the Raytech 5 software so I can also use that if I am short of hardware connectsions. How's the C80? My local dealer is pushing the E series plotter -maybe that is another thread?
Graham_Wright
Well-Known Member
[ QUOTE ]
I have put the NMEA info from my simrad instruments - speed / depth / wind into the back off the ST6001 pilot controller which converts it all to seatalk.
.
[/ QUOTE ]
Three outputs into three inputs or all mixed on one line into one input? (See original post)
I have put the NMEA info from my simrad instruments - speed / depth / wind into the back off the ST6001 pilot controller which converts it all to seatalk.
.
[/ QUOTE ]
Three outputs into three inputs or all mixed on one line into one input? (See original post)
tome
Well-Known Member
Each of the Simrad IS15 instruments has a seperate NMEA (which can be in or out) and will multiplex NMEA inputs onto it's Roblink internal bus and make this available at each instrument head as multiplexed NMEA output. A neat feature!
AlexL
Well-Known Member
[ QUOTE ]
[ QUOTE ]
I have put the NMEA info from my simrad instruments - speed / depth / wind into the back off the ST6001 pilot controller which converts it all to seatalk.
.
[/ QUOTE ]
Three outputs into three inputs or all mixed on one line into one input? (See original post)
[/ QUOTE ]
No! as Tome has said the simrad IS15s are networked and the NMEA out on any instrument carries the full data on the whole network.
[ QUOTE ]
I have put the NMEA info from my simrad instruments - speed / depth / wind into the back off the ST6001 pilot controller which converts it all to seatalk.
.
[/ QUOTE ]
Three outputs into three inputs or all mixed on one line into one input? (See original post)
[/ QUOTE ]
No! as Tome has said the simrad IS15s are networked and the NMEA out on any instrument carries the full data on the whole network.
Other threads that may be of interest
