incompatibility between Lighthouse II and Mercruiser Smartcraft?

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum zelatore,

The symptoms reported are indeed not those of a faulty MFD, nor are they indicative of faulty MFD software. The MFDs are simply repeating data received via the SeaTalkng/NMEA 2000 backbone from the engine system. Early a/c/e/gS-Series MFD software did not have as extensive engine alarm features. Like your automobile, the vessel's engine system will test the itself each time that the engines are started. In a car, the engine system's diagnostic warning lights appear until cleared by the engine computer. Were you to connect a NMEA 2000 CAN bus analyzer to the SeaTalkng backbone and then monitor PGNs containing engine alarm data when the engines are started, you will likely find that initially, the the PGNs contain the reported alarms. Following the startup diagnostics, these alarms will be cleared. Raymarine MFDs will latch received engine alarms until they are cleared by the operator. Raymarine's a/c/e/eS-Series MFDs which have are operating with the latest software (v16.47 at the time of this response) include alarm settings to enable (default setting) or disable engine alarms. Should you not want your MFDs to report these alarms, then you may want to consider configuring these alarms OFF or starting the MFDs after having started the engines.