Hi, two month old Victron install on my 55’ motor yacht. Have been experiencing weekly slow downs/sluggishness and sometimes crashing of my Cerbo V3.55 typically once every 7 to 10 days. My Victron Sales engineer thinks my Cerbo may be overwhelmed by our NMEA2000 traffic coming in via VE.Can2 port. I disconnected this but am still seeing VECAN1 error messages in /var/log/messages. IS VECAN1 error messages for the physical VE.Can1 port on the Cerbo, generic VECan error messages, something else?
Pic diagram of Victron Gear, not shown are 4 - 300Ah Victron NGX Batteries, two for each BMS
Before last crash I was seeing alerts like this, no BMS is usually the death knell requiring a reboot to recover:
Right before our last crash @ 13:12:55 I was seeing these VECAN1 error messages over and over in /var/log/messages
At my Victron Sales engineer recommendation I have unplugged my N2K Network connection from VE.Can2 port but am still seeing VECAN1 errors where can I find details about these?
Bus errors seem pegged at 4/min over and over:
I'm up and running four days since last crash and just waiting for it to happen again before reconnecting my NMEA2000 network connection. It's painful waiting and hard to trust this new Victron gear given the repeated loss of comm to the BMS's and low battery alert messages. I have looked at some of the notes about creating maps to change N2K Instance numbers and I think possible filter files I can create to reduce the amount of N2K traffic that reaches the Cerbo? I really only like Tank levels being displayed in Cerbo and don't see the need for lat/lon which is the noisiest traffic on my N2K network. These crashes have been happening at the dock in my backyard without any Navigation equipment running i.e. Chart Plotter, Radar, AIS, Nav PC, scanning depth sounder. Our N2K network has sensors for weather, water depth, tank levels and command and control of lights but the bus traffic at the dock is low so I'm doubting this overload theory to the Cerbo. Here is a high level view of current devices/traffic on my N2K network bandwidth utilization averages 30%
I have read a lot of posts about Cerbo crashing due to power supply issues. My BMS's are providing the power to the Cerbo and battery voltage is pretty constant at the dock 26-27V with a pair of MPII's in sustain mode charging batteries and 1000W of Solar on the roof of the boat. I don't have Reboot enabled on loss of VRM comm's so it's not this. Cerbo temperature is below decks in a warm but not hot isolated battery compartment space below the waterline. I have run Top to see if Cerbo is loverloaded and loads look low to me for the short period of time I watch. Looking for suggestions where to look as it appears to me to be a memory leak/shortage of resources that results in a crash/reboot or me manually rebooting to get services back.
Top shows 40% CPU utilization
root@einstein:/opt/victronenergy# uptime
12:48:33 up 3 days, 23:35, load average: 2.01, 2.56, 2.77
Scott in Sunny FL