Hi
Is it possible to use the the two relay outputs of the Venus gx independently ,for example relay1 is used for a generator and relay 2 used for a pump or Temperature
I currently use relay 1 for generator but would be useful to use relay 2 aswell
If the relays can be used independently could you please advise how this can be achieved
Thanks
Hi,
If you know a little bit of programming it is easy to enable the second relay on the Venus. You only need to modify the file PageSettingsRelay.qml.
Support for Relay 2 will be included in Venus v2.30 and is included in latest release candidate, Venus v2.30~27
I can see the relay to ON switch but not clear on how to actually use the output of the relay - how it is controlled ( from Dbus?)
@Anil Ghatikar Relay 2 can only be controlled manually for now. Either via the gui, dbus or remotely. Here is an example on how to turn it on remotely using Modbus in python:
https://gist.github.com/osaether/c4debb133b1621a4eea9658a6043542d
And using MQTT (Relay 1 in this example):
https://gist.github.com/osaether/5ad837a7ad40a8ce98fced6a3504f5ad
https://gist.github.com/osaether/875fcfd3e96358e3623248da5595d233
To turn Relay 2 on/off using dbus on the command line use these commands:
dbus -y com.victronenergy.system /Relay/1/State SetValue 1 dbus -y com.victronenergy.system /Relay/1/State SetValue 0
Relay 2 is not accessible yet. I also have plans for it when it does become accessible too :)
Hi
4x relay are available now for the raspi Ver 2.40.46.
Still only 1 function assigned to date.
Hi,
Why is Victron implementing a relay into the Venus that is only controllable manually. Implementing SOC control for a relay in software should be no big issue. Venus OX 2.60 still does not provide this. Manual relay control is much easier by installing a hardwired switch. No need to open a APP, browse to relay function to activate.
When is SOC relay control coming? This feature would be ideal for load management, etc.
It is also recommended that simple SOC control (not Gen/Start stop) should be an option for relay 1. i.e Switch on at 90% and switch off at 75% ( function should be either NO or NC)
I beg to differ that a hardwired switch is easier. Not if you're 400km away from your house and need something to be switched.
SoC relay controlling can be done e.g. with a simple bash script, see
https://github.com/petajoulecorp/vicgx_plc
for an example how to access (and write to) the DBUS.
It's using dbus-send, because contrary to the easy peasy "dbus" command dbus-send is actually fast.
If anything changes in the setup of the relays on the VGX, pease let me know.
Thank you!
I'd love to see some details about how to get relay 1 to work with SOC at 15%, I want to switch off my heat pump circulation pump when I have low battery but can't seem to get the right setting, some help would be much appreciated. Thanks.
Yes you can via the Assitants or use the genset setting in the Cerbo or GX controller.
Both work OK.
