#EVINRUDE NMEA 2000 NETWORK FURUNO PRO#
Mike made the point that it's important to keep up on known problems to avoid wasting your own and customer time, and one added benefit of these pro gatherings is how they encourage future networking among all involved. The course went into detail about N2K Source Addresses and Device/PGN Instances, and also how the early standards documentation wasn't crystal clear about how manufacturers should use them. And if this sort of technical nuance is not your cup of tea, isn't it good to know that pro installers are teaching each other about it?
#EVINRUDE NMEA 2000 NETWORK FURUNO HOW TO#
Though I've seen such things happen - time to reboot the network! - I understand the behavior better now, and also how to find the cause. The rest of the network gets healthier, but all of a sudden you may have no Heading (unless a backup sensor has been set up). The spiky voltage differentials seen above may have only caused occasional faulty data frames, but each device counts the faulty frames it has transmitted until a certain threshold when it must gracefully take itself off the network. Instead it purportedly powered up OK, but then developed data problems over time, which makes sense when you understand another CANbus/N2K nuance called Fault Containment. Of particular interest with the messed up electronic compass was that the large N2K network it was on did not simply fail.
Technical dealers (as they are sometimes called) are the last link between manufacturers and the owners of complex commercial and recreational electronics systems stuff working or not working can make or break their day, sometimes even their bank accounts. The general consensus was that NMEA 2000 is quite robust though the real interest focused on why problems occur. There was also a lot of valuable feedback from the trainees, most of whom had much more than a year's experience in the field.
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