Currently my Multiplus-II GX is connected to the Energy meter via MQTT and to the BMS via USB.
But I’m wondering why two communication paths are needed, could it not be all connected via one port, for example VE-direct bus.
I can find information about reading the status of the Multiplus II via the VE-direct bus.
And I see some people using it as interface to the BMS.
But has anybody tried to send the energy meter values via the VE-direct bus to a Multiplus GX?
I could not find it in the VE-direct information on the Victron Webpage.
Is this possible? If so, any tips how to do this?
Check, so I need to make a single electronica board that collects all my information and send that via the point to point communication to the Victron.
But can I send via this point-to-point communication also the energy meter values to the Victron?
I do not see that in the VE-direct datasheet.
Indeed
But with a bit of programming it should be easy to convert the data I have to the right format, such that the Victron thinks it is an energy meter.
Is there somewhere information what kind of data-commands/registers I should use to make the Victron recognize the values as “Energy”, “voltage” etc?
I see that there is also default support inside the Victron for the ABB B21/23/24 meters. So maybe I can fake my setup into pretending it is one of those?
Ok. So, yes, you have it.
As ESP8266 is ESP32 (or vice-versa), then I should understand all of the code and almost implement 1:1. I already have the meter data on my ESP32. I use it to heat water for shower and central heating. That works lovely for more than a year. But still there is extra energy from panels.
Are you willing to share MP2-GX settings and the code from ESP? If not, I understand. I will continue anyway, even now proven by you it does work.
And related to the GX-settings. I did not have to do anything special accept turning on the ModBus. After a short scan it will find the Em24-clone.
Or you have to add the IP adres of the clone if the scan is not working.