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[TG] [TG11] Axiom fuel/trip manager resets erroneously
10-15-18, 12:10 AM (This post was last modified: 10-18-18 12:19 PM by Chuck - Raymarine - Moderator.)
Post: #2
RE: [TG11] Axiom fuel/trip manager resets erroneously
Hello jfitch,

This is the right place to report such problems.

My interpretation of what you're seeing is:
  1. At power up, display doesn't yet have time information from GPS, so uses the latest time that it had (yesterday's)
  2. Once the display gets a GPS fix, it has time info and so resets the day's data to zero. I am guessing that the update-rate on the trip info is only relatively slow in order to avoid unnecessary system load, hence taking a minute or so.
  3. (I'm not sure what's going on with the month data, unless the last-used date was last month - can you confirm that this is consistent even when the last usage was this month?)
  4. the Fuel Manager software updates the displayed values when the displayed value changes, which in metric systems is once 1 litre of fuel has been used. I don't know the increment when units are set to gallons, but I think that the trigger for the fuel-used values to change will be that a certain volume of fuel has been consumed. When you say that this is the same as is in the Trip line though, what is this value? Has the Trip been reset, is that today's usage or is this some larger, accumulated value? I have seen sudden, large fuel-usage increments based on misleading information coming from engines several times.

I would really need a recording of the raw NMEA3000 data in order to see exactly what was happening - good technical dealers have the hardware and software to look at/record that data, and if you can get a recording of the traffic, we'd be happy to have a look.

In the meantime, I'll play some fuel data into my bench test Axiom and see if I see any anomalies.

Regards,
Tom

Raymarine since 1999.
Interests: Diagnosis of problems in sonar/fishfinders, NMEA2000, ethernet comms, autopilots, thermal cameras
Location: Sydney, Australia.

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RE: [TG11] Axiom fuel/trip manager resets erroneously - Tom - Raymarine - Moderator - 10-15-18 12:10 AM

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