Generally, marine engine CAN bus networks have one of two popular types of protocols:
Most outboards offered since about 2006 support NMEA 2000 natively. Maretron always recommends first contacting the engine manufacturer to determine which protocols it supports, but it can be difficult to obtain this information. Maretron offers the following rules of thumb so one can navigate through good and bad information to reach the ultimate answer of displaying engine data.
1. If the engine uses diesel fuel and is manufactured by an American company, the odds are favorable that J1939 is available for conversion.
2. If the engine uses gasoline as a fuel source, the odds are very good J1939 is available for conversion.
3. If the engine is an outboard motor bearing the mark Yamaha Commandlink, Honda, Evinrude, or Suzuki.
4. If the engine is part of an existing engine manufacturer's factory network complemented with gauges.
5. If the engine is part of an data network consisting of displays, throttles, and listed on the NMEA 2000 certified product list.
Note: It is extremely important to have the ability to examine both a J1939 network and an NMEA 2000 network for engine data. Most cases involving single or multiple engines or networks require this crucial step. Generic interfacing by "plug and play" without first determining the presence of J1939 data is unsuccessful on 90% of the existing systems.
Article Number: 605
Posted: Wed, Oct 15, 2014 8:46 PM
Last Updated: Fri, Jul 31, 2015 4:52 PM
Online URL: https://www.maretron.com/support/knowledgebase/phpkbv7/article.php?id=605