Upgrading Electronics

RS340DA

Member
Aug 19, 2018
37
Michigan
Boat Info
2004 Sea Ray 340 Sundancer (SDA)
Generator
Raymarine Electronics
Bow & Stern Thrusters
Engines
8.1’s with V Drives
I am looking for some guidance on replacing the old electronics on my (new to me) 2004 340 SDA. I am replacing the old Raymarine SL70C MFD, Raymarine Radome, original transducer, Raystar 120 GPS sensor, and Clarion Radio/remote.

So I purchased a new Garmin 942xs, Garmin GMR 18 xHD Radar, Garmin 19X GPS sensor, B150M Chirp Transducer, Fusion AV650 radio, Fusion Remote, and NMEA 2000 starter kit with STng/NMEA2000 connection cable.

I also want to use my existing Raymarine Auto Pilot P70R (ACU-200), and Smartcraft System SC5000.

The problem I see is that everything was on SeaTalk and/or STng. I want to upgrade every to NMEA 2000, so since I am getting rid of the old Chartplotter and radar, can I remove the Sea Talk and just use Stng to NMEA 2000? Also, how do I get my SC5000 to communicate with my Garmin 942xs?

Thanks for the support in advance.
 
smartcraft to NMEA2000 can be accomplished with a vessel view link module.


https://www.mercurymarine.com/en/us/gauges-and-controls/gauges-displays/vesselview-link/
vvwlink.png__950x1200_q85_autocrop_size_canvas_subsampling-2_upscale.png
 
You can use a lot of your old Seatalk devices (autopilot, ST60+ etc.)with this...$95. I believe SeatalkNg is just a proprietary version of NEMA2000. Regardless, can save some $$ by going this route.

Add the cable mentioned abouve and you can mix and match brands fairly easily and all data will come across ther NEMA 2000 network.

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So I created a network schematic. Does this look correct?

I know I can purchase the Mercury Gateway to connect the SC5000 to NMEA 2000 network, but after more thought, I may just keep them separate since I have two different transducers (the original ducer for SC5000 and the new B150M for Garmin 942xs). Thoughts?
 

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Looks like it will work. Both those ducers should work on nmea2k. Awfully nice having that engine info on the mfd.
 
Just a couple items..

The SeaTalk-Seatalkng converter is currently connecting you M400 to your network? If the Radio is an Icom M400BB, it is NEMA0183 only. I dont see anything that has a NEMA0183 output, so you will need a SeaTalkng to NEMA0183 converter (Raymarine #E70196) to supply data to the VHF. Maybe this is what your refering to?

Capture.PNG


Also, not sure what your requirements and expectations are for data sharing between Raymarine and Garmin MFD's but I would not expect the radar data would be viewable on the Raymarine MFD's. I would expect all of your engine data and Fusion stuff to work across both systems via NEMA 2000.

As far as where power is required in the network, contact Raymarine Support, and they can look at your drawing and make the right recommendation.
 
Just a couple items..

The SeaTalk-Seatalkng converter is currently connecting you M400 to your network? If the Radio is an Icom M400BB, it is NEMA0183 only. I dont see anything that has a NEMA0183 output, so you will need a SeaTalkng to NEMA0183 converter (Raymarine #E70196) to supply data to the VHF. Maybe this is what your refering to?

View attachment 64678

Also, not sure what your requirements and expectations are for data sharing between Raymarine and Garmin MFD's but I would not expect the radar data would be viewable on the Raymarine MFD's. I would expect all of your engine data and Fusion stuff to work across both systems via NEMA 2000.

As far as where power is required in the network, contact Raymarine Support, and they can look at your drawing and make the right recommendation.

dtfeld,
Thanks for the response. Now this is starting to make sense! The previous owner had the VHF installed to the network using the green & yellow wires from the Icom M400BB to the yellow & red wires of a spliced cable, which was then connected into the yellow port of the STng convertor. Can I continue to use this process and tie it into the STng (less the black and white spur cable shown in the picture)?

I’m just trying to clean up this wiring mess and remove the old ST1 cables/wiring.

As for the Raymarine A67, I was mainly going to use it as a fish finder/sonar and engine data, not for radar data.
 

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I cant tell what that module is in your hands (you would have to find the part #), but if it is a Seatalkng to NEMA 0183 converter, that is exactly how its supposed to be wired. NEMA 0183 didnt have a standard plug, it was wired to terminals.

I would leave it alone, except if you feel the need to improve something, I would redo the connections with a high quality adhesive lined shrink wrap butt connectors (and shrink them).

As for intended use, sounds good to me. I'd love to hear back about any issues you find having a mixed system. I've stuck with Raymarine because I didn't want to mix manufacturers or have to replace a bunch of other electronics. Funny thing is as I move forward with the Raymarine line, I have ended up needing to replace more and more.
 
Ok, so this should be the final schematic. The only two open questions I have are;

Q1. Is the NMEA 2000 to STng cable correctly wired? I have it going into the blue backbone port of the STng 5-way connector and not a white spur port.

Q2. Is the power sufficient from the ACU200 or should I shutoff that power and run an independent power source using the Garmin supplied power cable (yellow)?

I put these questions up on the Raymarine forum for moderator “Chuck” to review, but haven’t heard back.
 

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  • Sea Ray 340 SDA_Electronics_Rev 2.pdf
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Power to the units and power to the networks are usually separate. Based on my exceptionally rudimentary knowledge, but having read a couple articles and forums while I was doing my upgrades, consider the following. For the record, i did not sleep at a Holiday Inn last night.

1. I think You will need to inject power to either the Seatalkng or 0183 converter. Refer to section 4.3 in the SeaTalkNg-SeaTalk converter manual. Chuck on the Raymarine forum helped me. He’ll get it right for you!

2. I think you need to separate the power from the Raymarine network, and the nema2000 backbone. They sell connectors that pass data but not power.

3. Making sure your network can handle the components on the network, you need to look at the LEN values of each component and add them up. Then there should be a table to look up the max allowed. It depends on where you inject the power to the network. It’s either balanced or unbalanced. If you have power coming in the middle, that’s a balanced network, and it you inject it at one end, that’s unbalanced.

The LEN values for the Raymarine are LEN=1 for the converter and LEN=3 for each Seatalk instrument taking power from the converter.

That will need to be done for each side...the N2Kband Seatlakng separately

Here a pretty good over view of the considerations

https://www.nmea.org/Assets/2012 ibex full nmea installation.pdf
 

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I would think you need that separate power wire. You may need a blue backbone cable
To that 5 way under the icom also. Chuck will know. Let us know the outcome
 
Good stuff guys. I will let you know the outcome after I hear from Chuck. Thanks for the input and advice!!
 
Chuck from Raymarine forums reviewed and corrected my network schematic. Attached is the approved schematic for anyone interested.

Won’t be able to test for a few weeks, but at least it’s ready. I will let everyone know if I run into any issues.
 

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  • Sea Ray 340 SDA_Electronics_Rev 3.pdf
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Update...
I have everything hooked up and all is functional. I wanted my engine data on my new MFD (as suggested), so I purchased the Mercury NMEA 2K Gateway (8m0151748) and the Mercury 6 port Junction Box (878492K16) to replace my 4 port Junction Box. I hooked everything up as per the instructions, the lights on both the NMEA and CAN side light up on the Gateway, but no data is being transferred to my Garmin MFD.

Any thoughts on why this is not working. I have read that several members said it’s plug and play on my year boat. ....#Stumped....
 
On what unit(s) were are you expecting data? There may be a software switch buried in the MFD's that you have to select to get the data to appear, and there may be a calibration required. But I could think of several other issues that could be problematic.

First thing I would do is update all the firmware to all components in the system.

I think I would then call the manufacturer and get to level 2 support.
 
Update...
I have everything hooked up and all is functional. I wanted my engine data on my new MFD (as suggested), so I purchased the Mercury NMEA 2K Gateway (8m0151748) and the Mercury 6 port Junction Box (878492K16) to replace my 4 port Junction Box. I hooked everything up as per the instructions, the lights on both the NMEA and CAN side light up on the Gateway, but no data is being transferred to my Garmin MFD.

Any thoughts on why this is not working. I have read that several members said it’s plug and play on my year boat. ....#Stumped....
I was just reading a blog entry on Seaboard Marine where someone had this exact problem - turned out to be a bad gateway. Here is the link: https://www.sbmar.com/community/topic/nmea-2000-gateway-to-diesel-view/
 
One other item...I assume you have twins. You may have to set the instance for Port and Starboard so the PGNs are read correctly. Port should be Instance 0, Starboard Instance 1.

That might have to be setup on the gateways and MFD to get them communicating...
 

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