In order to install an EV Charging Station NS I have to enable a charge limit of 4.2kW. This is a new requirement in Switzerland and has been intoduced last year. I get a signal from the smart meter, basically a two wire cable with open or closed relais contact, in case my power provider requires the limit to be set or not.
Besides the EV Charging Station I also run a Multiplus II and a Cerbro GX.
Any ideas how to implement this?
You may be able to set up a basic Node Red flow (or have somebody do it for you - at a small cost?). You would connect your two wire cable to the CRERBO GX input and then change the Charging station’s set point then the input changes.
Note: I don’t have a charge station at my place yet so I am not sure if this setpoint would be available. I could check it on one of my customer’s places.
Hi Ben, thank you, I just installed the large image and start to experiment with Node Red. I think I will find a flow which will handle the case.
Hi Ben, it works 
I use Digital Input 1 which i configured as “Bilge Pump” when the contacts are closed it gives me OFF in Node Red and when contacts are open ON. With as Switch and two Change elements I was able to set the Max Charge Current in EV Charger control node. I’m impressed this is really cool and so simple
Great! Good to hear - well done. Care to share your flow? I’d be keen to have a look and perhaps use it (if that’s ok with you) for ESS sites where they get cheaper power at certain times…
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