This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
OpenCPN UDP connection kills data browser
#1
I have OpenPlotter running on a Pi 5 with a McArthur HAT.  When I output OpenCPN course data to my SignalK server over UDP, the data browser page crashes.  A few data lines will start to load when the page is opened but then it will say "Something went wrong."

OpenCPN Version: 5.12.4
SignalK Version: 2.19.0

The OpenCPN connection options are: 
Network
UDP
NMEA 0183
host: localhost
port: 10111
description: OpenCPNNavOut
Output on this port
APB bearing precision x.x
Transmit sentences: APB,RMB,XTE

If I remove the OpenCPN connection and restart the SignalK server, the data browser loads fine.  There is some bit of OpenCPN data that is making the data browser have a fit.

Joshua
Reply
#2
Same problem here but with avnav. Data browser works just fine when you select raw data I suppose.

This seems to be a signalk issue and is being discussed on the signalk discord server

My culprit are these two lines 
   
Reply
#3
(2026-01-05, 09:53 PM)tobias.e Wrote: Same problem here but with avnav. Data browser works just fine when you select raw data I suppose.

This seems to be a signalk issue and is being discussed on the signalk discord server

My culprit are these two lines 


Thanks, Tobias.  I never saw that "Raw Values" slider and that has allowed me to at least load the data.  I have those two notifications as well.  It seems as though everything works apart from that glitch so the system is still useable.

Joshua
Reply
#4
I found a similar issue that only started a few months ago and what was happening was that I had setup a connection to receive data from Signal K and a connection to send data from OCPN to Signalk (same as you state above), same sentences as you. what I found was that SignalK was sending the APB, RMB and XTE sentences back to OCPN and creating a loop. After a few mins everything would crash. You could see the issue if you go to the dashboard page and look at "Total server Signal K throughput (deltas/second)" I was seeing thousands on deltas/second.

the fix is to exclude the same 3 sentences on the SignalK to OpenCPN side.
Reply
#5
2.19.1 may have a solution for this?
Reply
#6
Yes,  no more problems after the update 
   
Reply
#7
Working here as well.
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)