question

nuxland avatar image
nuxland asked

Node-Red exception

For some time I have at random time's this in my node-red log file.

And I can not figure out what is causing it. It seems to be one of Victron own nodes but what exactly?

@400000006399809207dd9e54 14 Dec 09:51:36 - [red] Uncaught Exception:

@400000006399809208d6236c 14 Dec 09:51:36 - [error] TypeError: Cannot set property 'deviceInstance' of undefined

@400000006399809208d64e64 at Object.<anonymous> (/usr/lib/node_modules/@victronenergy/node-red-contrib-victron/src/services/dbus-listener.js:124:57)

@400000006399809208d661ec at EventEmitter.<anonymous> (/usr/lib/node_modules/@victronenergy/node-red-contrib-victron/node_modules/dbus-native/lib/bus.js:138:19)

@400000006399809208d67574 at EventEmitter.emit (events.js:412:35)

@400000006399809208d67d44 at /usr/lib/node_modules/@victronenergy/node-red-contrib-victron/node_modules/dbus-native/index.js:106:14

@400000006399809208da22dc at Socket.<anonymous> (/usr/lib/node_modules/@victronenergy/node-red-contrib-victron/node_modules/dbus-native/lib/message.js:55:9)

@400000006399809208da3e34 at Socket.emit (events.js:400:28)

@400000006399809208da49ec at emitReadable_ (internal/streams/readable.js:550:12)

@400000006399809208da55a4 at processTicksAndRejections (internal/process/task_queues.js:81:21)

@400000006399809217892774 *** starting node-red-venus ***

@40000000639980921a697b74 *** Waiting for localsettings...

@40000000639980921d4483fc *** Starting in normal mode

@400000006399809738f3662c [info]: loading /data/home/nodered/.node-red/settings-venus.js failed

@40000000639980991c70a5b4 14 Dec 09:51:43 - [info]

@40000000639980991c70c8dc

@40000000639980991c70ccc4 Welcome to Node-RED

@40000000639980991c70d494 ===================

@40000000639980991c70d87c

@40000000639980991d6765ac 14 Dec 09:51:43 - [info] Node-RED version: v3.0.2

@40000000639980991dcde00c 14 Dec 09:51:43 - [info] Node.js version: v14.17.4

@40000000639980991dcdff4c 14 Dec 09:51:43 - [info] Linux 5.10.109-venus-8 arm LE


Node-RED
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1 Answer
Dirk-Jan Faber (Victron Energy) avatar image
Dirk-Jan Faber (Victron Energy) answered ·

Which version of firmware are you running?

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nuxland avatar image nuxland commented ·
Latest Release: v2.92
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Dirk-Jan Faber (Victron Energy) avatar image Dirk-Jan Faber (Victron Energy) ♦♦ nuxland commented ·
Thanks. Do you mind sharing your flows with me (you can mail them if you prefer that) so I can take a closer look? And can you tell me what hardware is connected?
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nuxland avatar image nuxland Dirk-Jan Faber (Victron Energy) ♦♦ commented ·

My VRM portal id is: 48e7da8999bd

So you can look there what hardware I have.

And I have a lot of flows together 6 or more tabs. So I can export them and compress to zip file but where do I find your email to mail them?

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Dirk-Jan Faber (Victron Energy) avatar image Dirk-Jan Faber (Victron Energy) ♦♦ nuxland commented ·
Thank you. With the vrm id I was able get de device list. And am also able to fetch the flows, so mailing is not needed. You do indeed have quite a lot of flows.

I am fairly sure that the problem will be solved with the next release candidate which will carry version 1.4.25 of node-red-contrib-victron. But that is of no help right now.

I will try to replicate the reproduce your issue on my test system and report back. Note that that might take a few days.

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Dirk-Jan Faber (Victron Energy) avatar image Dirk-Jan Faber (Victron Energy) ♦♦ nuxland commented ·

I did some checks on different systems and am quite sure that it is one of the connected devices that is causing it. Question is which one. I checked some of the devices that I have around (grid meter, shunts and mulitplus). But those do not seem to cause it. Do you mind enabling remote support on your system, so I can login, check the logging and the dbus and hopefully locate the cause?

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nuxland avatar image nuxland Dirk-Jan Faber (Victron Energy) ♦♦ commented ·

I have enabled Remote Support in my system, so You can log in if you want :)

What I found is that ModBus TCP Services I have three different device with the same ID

Lynx Shunt 1000a ve.Can - Unit id: 100

com.victronenergy.system - Unit id: 100

com.victronenergy.hub4 - Unit ID: 100

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Dirk-Jan Faber (Victron Energy) avatar image Dirk-Jan Faber (Victron Energy) ♦♦ nuxland commented ·
Thank you. It looks like there is an issue with the code handling the modbus connection to the evcharger, causing occasional instability on the dbus, which trips the Node-RED code.


We are able to replicate the problem on our own system and working on a fix for that.
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nuxland avatar image nuxland Dirk-Jan Faber (Victron Energy) ♦♦ commented ·

That's strange because I'm not using ev-charger node at all :)

It's bad that EV-Charger does not have LAN socket.

I had to install extra Wireless AP because EV-Charger got locked out when connected to my Asus Router (I have AiMesh with 4 extra AP-s). After few days EV-Charger did not ping anymore and If I restared Asus router it started to ping (so it seems that wifi connection somehow did not worked with Asus)

But with that extra Wifi AP (different SSID) do not have the same behaviour.

And I think if you mention this restarts started to happen after I installed EV-Charger or I installed that extra wireless AP. Can't remember anymore.

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Dirk-Jan Faber (Victron Energy) avatar image Dirk-Jan Faber (Victron Energy) ♦♦ nuxland commented ·

FYI: We are still working on it, but struggling with triggering the issue on command.

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