Mqtt to get SOC and Available solar Power

Node-RED
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1

Hello,
I have a Multi RS Solar 48/6000 inverter/charger 48 V 6 kVA connected with VE.CAN to Cerbo GX and Pylontech Batteries connected with BMS.CAN.
Cerbo Firmware is 3.55 with large image and MQTT enabled, NODE RED installed.

I try to get via MQTT the following data: Battery SOC and Available MPPT Power for later use in NODE RED.

For testing, I connect via MQTT Explorer.
Very strange that I get these data only when I open Venus GUI2 at the same time. So I will need to have it open to run NODE RED flows ?

Also it seems that I cannot read the available solar power at the MPPT, but only the used yield power ? Is there a way to see the available power, if still not used ?

Please help.
Best regards,
Daniel

2

Look up mqtt keep alive. :upside_down_face:. I think this is the first thing all of us learned when we started with mqtt. (And the same way)
Are you running node red on a separate device?