[CA] [CA11] Axiom Problems. ECI-100 YAMAHA Twin F250

[Chuck - Raymarine - Moderator]

alimon,

Q. But the Alarm read: Engine Number 3 overheating. NUMBER 3??
A. While it is not uncommon for alarms to be triggered during startup as part of a self test, the engine instancing appears to be incorrect. I suspect that one of the engines is transmitting Instance ID 2 instead of 1. This may be verified using a NMEA 2000 analyzer (ex. Actisense NGT-1 w/Actisense NMEA Reader application, Kvaser, etc.). Please respond with the version of software which is installed within the ECI-100.

While I'm not a Yamaha engine technician, the Command Link / Command Link Plus bus which you have described below appears correct:
Aft HUB:
2 engines and the Fuel flow meter (6Y80-11). Terminator and Bus. Blank on power
Fwr HUB:
2 6Y8T-11 gauges and the cable to the ECI-100. Terminator and Bus. Power cable. Note: would recommend contacting Yamaha to verify how the Command Link / Command Link Plus bus should be powered.

Please attach a diagram of the marine electronics backbone to this thread.