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Yanmar Common Rail engine and NMEA 2000

Old 02-05-2017, 06:04 AM
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Default Yanmar Common Rail engine and NMEA 2000

I just repowered my sailboat with a Yanmar common rail engine with electronic control. My struggle to connect it to my Garmin chart plotter was mostly due to the lack of information available on the interfaces from the different devices. I thought I would post how it eventually worked to save some others the headaches.

You first need a cable configuration from Yanmar to get the data out of the engine. It is my understanding that the Yanmar engine outputs J1939 on Can Bus and has to be converted to NMEA 2000 to work with my Garmin or other marine instruments. The cables you will receive will look like a NMEA cable only it will be the wrong gender. It is for Can Bus networks. You need to convert the physical as well as the protocol. This requires a "gateway" (fancy name for a protocol converter).

You can get the conversion (Gateway) if you purchase a separate Yanmar engine instrument display. Why would I do that when I want to convert the protocol so it can be displayed on my chart plotter? Yanmar really missed the boat on this one for the recreational boaters if you ask me. A native NMEA 2000 would have been so simple.

Another alternative is to purchase a Maretron J2K100 J1939 to NMEA 2000 gateway for @ $400.

What I decided to go with was the Raymarine ECI-100 protocol gateway. This was $277 on Amazon. The only problem was that it put out SeaTalk-ng instead of NEMA 2000. I called Raymarine to find out if I could buy a SeaTalk-ng to NMEA 2000 cable and hook it into my NMEA backbone for anything to use. The initial response was "Garmin should build their own gateway." I am trying to give your company money and you want me to tell another manufacturer to build a competing product???

After several attempts I finally talked with a very nice Raymarine tech. support person who could tell me what PNGs the ECI-100 put out. They are in the online manual but not in the printed manual that came with the unit?? The good Raymarine tech. said that they could not help with how or if Garmin could use the specific PNGs. That I could understand.

I purchased a $30 SeaTalk-ng to NMEA 2000 cable from defender and now my engine gauges are on my Garmin (make sure you get the right gender for the NMEA 2000) . Apparently SeaTalk-ng is really (mostly?) NMEA 2000 with a different connector. I have talked with a couple of marine electronic installers and this seems to be the consensus.

I was shocked by the lack of information that was easily available for each of these units and how difficult it was to get the information from the manufacturers. I think it may be a combination of how new these units are with a lack of understanding by the tech support of how these actually work.
Old 02-05-2017, 05:49 PM
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Default Same Problem

I have been searching for data on how to do this as well. I have a Garmin 1040 and a Yanmar 4 jh57 on the way. Do you have a part number for the Yanmar cable? Thank you.

Originally Posted by CSY44_Sailboat View Post
I just repowered my sailboat with a Yanmar common rail engine with electronic control. My struggle to connect it to my Garmin chart plotter was mostly due to the lack of information available on the interfaces from the different devices. I thought I would post how it eventually worked to save some others the headaches.

ou first need a cable configuration from Yanmar to get the data out of the engine. It is my understanding that the Yanmar engine outputs J1939 on Can Bus and has to be converted to NMEA 2000 to work with my Garmin or other marine instruments. The cables you will receive will look like a NMEA cable only it will be the wrong gender. It is for Can Bus networks. You need to convert the physical as well as the protocol. This requires a "gateway" (fancy name for a protocol converter).

You can get the conversion (Gateway) if you purchase a separate Yanmar engine instrument display. Why would I do that when I want to convert the protocol so it can be displayed on my chart plotter? Yanmar really missed the boat on this one for the recreational boaters if you ask me. A native NMEA 2000 would have been so simple.

Another alternative is to purchase a Maretron J2K100 J1939 to NMEA 2000 gateway for @ $400.

What I decided to go with was the Raymarine ECI-100 protocol gateway. This was $277 on Amazon. The only problem was that it put out SeaTalk-ng instead of NEMA 2000. I called Raymarine to find out if I could buy a SeaTalk-ng to NMEA 2000 cable and hook it into my NMEA backbone for anything to use. The initial response was "Garmin should build their own gateway." I am trying to give your company money and you want me to tell another manufacturer to build a competing product???

After several attempts I finally talked with a very nice Raymarine tech. support person who could tell me what PNGs the ECI-100 put out. They are in the online manual but not in the printed manual that came with the unit?? The good Raymarine tech. said that they could not help with how or if Garmin could use the specific PNGs. That I could understand.

I purchased a $30 SeaTalk-ng to NMEA 2000 cable from defender and now my engine gauges are on my Garmin (make sure you get the right gender for the NMEA 2000) . Apparently SeaTalk-ng is really (mostly?) NMEA 2000 with a different connector. I have talked with a couple of marine electronic installers and this seems to be the consensus.

I was shocked by the lack of information that was easily available for each of these units and how difficult it was to get the information from the manufacturers. I think it may be a combination of how new these units are with a lack of understanding by the tech support of how these actually work.
Old 02-05-2017, 11:42 PM
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Default

Guys I have 8305 interfaces that Mastry converted to nema 2000 which I attached to garmin 1040 last week. Works great and very inexpensive. Good luck.

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