Signal K•4mo 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•3mo 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•3mo 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•3mo 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 ...

Runar•3mo ago

So how do I implement?

Scott Bender•3mo 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,

Runar•3mo ago

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

Scott Bender•3mo 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•3mo ago

@Runar did you upgrade the server as Scott mentioned?

Runar•3mo ago

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

HansT•3mo ago

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

Runar•3mo ago

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

Scott Bender•3mo ago

Did you deleted and recreate the data connection?

Runar•3mo ago

not on purpose as far as i know...

Scott Bender•3mo ago

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

Runar•3mo ago

Only the can or all?

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Multiple session on N2K?