{"id":2362,"date":"2022-01-03T14:26:55","date_gmt":"2022-01-03T14:26:55","guid":{"rendered":"https:\/\/open-boat-projects.org\/?page_id=2362"},"modified":"2026-01-30T09:08:29","modified_gmt":"2026-01-30T09:08:29","slug":"volvo-penta-nmea2000-interface","status":"publish","type":"page","link":"https:\/\/open-boat-projects.org\/en\/volvo-penta-nmea2000-interface\/","title":{"rendered":"Volvo Penta NMEA2000 interface"},"content":{"rendered":"

First of all, a few important notes that you should definitely pay attention to.<\/strong><\/em><\/a><\/p>\n

Disclaimer: The descriptions of the wiring and the pin assignments correspond to what I found in my boat. Therefore, if you want to recreate the interface, you have to make sure that the wiring and pin assignments on your own boat are identical or adapt the interface accordingly. The entire description of this solution is in an experimental state and comes without any guarantee. Changes to the cabling of the boat or the electrical and electronic conditions can lead to damage or critical situations. You do so at your own risk.<\/em><\/p>\n

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General<\/h2>\n

The basic installation of a Volvo Penta engine (engines D1 and D2) with EVC consists of various sensors on the engine that are connected to the EVC \/ MDI<\/a> (electronic vessel control \/ motor data interface) are connected. These data are sent from the MDI to the speed instrument via a CAN bus. Often there is only the tachometer with a small LCD display to show data. However, additional instruments can be purchased and connected behind the rev counter via the so-called Easy-Link.<\/p>\n

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The speed is displayed continuously. Other values, such as cooling water temperature and charging voltage, are only alerted in the event of an error, but are not displayed continuously. The interface described here connects the engine's CAN bus with an NMEA2000 bus. The information in the VP-CAN bus, which is available as J1939 datagams, is read, evaluated and written to the NMEA2000 bus as NMEA2000 datagrams. The data implemented so far are<\/p>\n