Signal K•6mo ago

Multiple session on N2K?

SignalK set up to send data to my B&G setup for the performance plugin by @HansT. When I reboot, this happens more often than not. How do I avoid?

17 Replies

HansT•6mo ago

So it looks like it's connected to uniqueNumber missing in settings.json. @Scott Bender I thought this was fixed already? If not, probably enough to add uniqueNumber to the variables to write to settings.json? It's already part of the can interface, so a secondary interface can get it's own number.

Scott Bender•6mo ago

I’m not sure what the number being displayed there is. But if uniqueNumber is not in the setting (it should be), then it uses a random number. There was also recently a change to the way the serial number is generated.

Scott Bender•6mo ago

And possible more important, this fix https://github.com/canboat/canboatjs/pull/268

GitHub

fix: socketcan devices not negotiating a new address when there is ...

RunarOP•6mo ago

So how do I implement?

Scott Bender•6mo ago

Update your server with “sudo npm install -g signalk-server” And check your connection in settings.json for uniqueNumber. It should look something like ``` { "type": "providers/simple", "options": { "logging": true, "type": "NMEA2000", "subOptions": { "type": "canbus-canboatjs", "interface": "can0", "providerId": "can0", "uniqueNumber": 920606,

RunarOP•6mo ago

Changed manually, but when reatarting the can connection is gone. When I add it and restart - this is what I get

Scott Bender•6mo ago

very strange. I just created a new connection and it looks like this

{
      "pipeElements": [
        {
          "type": "providers/simple",
          "options": {
            "logging": false,
            "type": "NMEA2000",
            "subOptions": {
              "type": "canbus-canboatjs",
              "interface": "can0",
              "uniqueNumber": 418893
            }
          }
        }
      ],
      "id": "can0",
      "enabled": true
    }

{
      "pipeElements": [
        {
          "type": "providers/simple",
          "options": {
            "logging": false,
            "type": "NMEA2000",
            "subOptions": {
              "type": "canbus-canboatjs",
              "interface": "can0",
              "uniqueNumber": 418893
            }
          }
        }
      ],
      "id": "can0",
      "enabled": true
    }

try deleting your data connection via the admin ui, restart, then create a new one ?

HansT•6mo ago

@Runar did you upgrade the server as Scott mentioned?

RunarOP•6mo ago

Yes. I did. Restarted my pi and then screenshot my setting.json

HansT•6mo ago

I also notice 'providers/simple' in Runar's screenshot - that looks odd \ /

RunarOP•6mo ago

Did a new upgrade with browser closed. Restarted my pi. Checked settings.json. Still no "uniqueNumber"

Scott Bender•6mo ago

Did you deleted and recreate the data connection?

RunarOP•6mo ago

not on purpose as far as i know...

Scott Bender•6mo ago

I asked you to do that above try deleting your data connection via the admin ui, restart, then create a new one ?

RunarOP•6mo ago

Only the can or all?

RunarOP•6mo ago

Got it when removing and adding

HansT•6mo ago

Ok, so now look at the B&G Device list and restart signalk. This should now not result in a new SignalK entry and the old one becoming (invalid)

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Multiple session on N2K?