# Victron node do not connect!

**URL:** <https://discourse.nodered.org/t/victron-node-do-not-connect/82660>\
**Category:** General\
**Tags:** mqtt\
**Created:** [6 November 2023 16:56 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660 "2023-11-06T16:56:41Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![AloisBachmeier](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/aloisbachmeier/32/82319_2.png) [@AloisBachmeier](https://discourse.nodered.org/u/AloisBachmeier)\
**Post date:** [6 November 2023 16:56 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660/1 "2023-11-06T16:56:42Z")

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Hi all,  
I run node red on my RasPi. Want to use the Victron nodes however they do not connect !

When I use nodeRed on the Victron controler (Cerbo GX) it works fine. However I need to run nodeRed on the RspPi.

Any idea?

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**Author:** ![hominidae](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hominidae/32/4174_2.png) [@hominidae](https://discourse.nodered.org/u/hominidae)\
**Post date:** [6 November 2023 21:10 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660/2 "2023-11-06T21:10:40Z")

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...under the Settings menu, did you enable dbus over tcp on the GX device?

Edit: see here...the answer is written here: [node-red-contrib-victron (node) - Node-RED](https://flows.nodered.org/node/@victronenergy/node-red-contrib-victron#Installation-and-Usage)

another options, without the victron nodes, is to use mqtt or modbus-tcp - which is what I do.

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**Author:** ![AloisBachmeier](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/aloisbachmeier/32/82319_2.png) [@AloisBachmeier](https://discourse.nodered.org/u/AloisBachmeier)\
**Post date:** [7 November 2023 12:53 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660/3 "2023-11-07T12:53:03Z")

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Thanks .... Modbus/TCP is activated now .... is this dBus ?  
Anyhow the Victron nodes still do not connect.  
The only thing I need the V nodes is to on/off the relay 1.  
I know the topic: N/c0619a...../system/0/Relay/1/State to read out the state but how to activate?  
Any idea?

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**Author:** ![hominidae](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hominidae/32/4174_2.png) [@hominidae](https://discourse.nodered.org/u/hominidae)\
**Post date:** [7 November 2023 21:43 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660/4 "2023-11-07T21:43:37Z")

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> [@AloisBachmeier](#):
>
> Modbus/TCP is activated now .... is this dBus ?

no it isn't ...my mistake ..see my edit...based on the doc I linked, it can be activated via an internal shell command only, not from the GX menu (but I am not using the victron nodes myself, only mqtt (which can be activated via the GX menu as well, like modbus-tcp)

> [@AloisBachmeier](#):
>
> I know the topic: N/c0619a...../system/0/Relay/1/State to read out the state but how to activate?  
> Any idea?

No, sorry...looks like this is just the relay state, not the switch ...did you check: [dbus · victronenergy/venus Wiki · GitHub](https://github.com/victronenergy/venus/wiki/dbus)

BTW: this is not related to node-red...maybe better asking in the victron/venusOS community-Forum: [https://community.victronenergy.com/smart-spaces/71/node-red.html](https://community.victronenergy.com/smart-spaces/71/node-red.html)

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**Author:** ![AloisBachmeier](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/aloisbachmeier/32/82319_2.png) [@AloisBachmeier](https://discourse.nodered.org/u/AloisBachmeier)\
**Post date:** [8 November 2023 15:39 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660/5 "2023-11-08T15:39:10Z")

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Thanks a lot!

Alois

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [7 January 2024 15:40 UTC](https://discourse.nodered.org/t/victron-node-do-not-connect/82660/6 "2024-01-07T15:40:02Z")

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