[CA] No Navigation Data message

[Chuck - Raymarine - Moderator]

Steve,

Your diagram indicates three ST60 instruments (not ST70 Instruments) have been interfaced to the system via a SeaTalk to SeaTalkng Converter. "No Navigation Data" is status which is returned by the EV-1 CCU to the p70 when the operator has commanded the autopilot into Track mode and the system has received no input from a GPS/chartplotting system concerning navigation to waypoint/cursor location. As the system is returning diagnostic data to the p70, the devices are communicating. What was not indicated within the diagnostic information supplied was the version numbers of the software which is installed within each device. As the system had been previously working, you may want to consider trying commanding a Pilot Factory Reset, followed by again executing the Dockside Wizard, and then taking the boat ride to permit it to determine the deviation sensed by the EV-1 CCU. At that point, you should be able to enter Auto (not Track) mode using the reduced system which you have listed if the versions of software within the Raymarine products having a SeaTalkng / NMEA 2000 communications interface are compatible.