I have a system with an energy meter ET340 on the grid.
A second energy meter ET340 is on the pv inverter connected on the Ac-in.
Both meters are configured correctly. They are connected on a CERBO with an RS485 to usb interface each.
The PV shows up in the ac out!
I am running last firmware, I have reset the system, I have removed and reinstalled the meter but nothing.
Any ideas?