Done some programming before in my life, but I thought it would be funny to start something new and so I ended up with NodeRed on a RPi3.
My neighbour does have a SolarEdge photovoltaik inverter plus a meter, according to specs working with modbus. Could be via TCP or via RTU (USB-RS485 dongle on an RPi3).
Installed the modbus contrib package to NodRed and try to read the data. When I derectly debug-print the output happening on the serial device (/dev/ttyUSB0) I do see data but it is not in a format that is readable to me. To the contrary, when I try this with the modbus-flex-getter it also does not matter, if I use TCP or RTU. Flex-getter is always initializing and then reconnecting but I can not get the connection "stable", to see anything in th modbus-read afterwards.
Could someone please give me a (friendly, please, I'm new here) nudge, to open up a new perspective to me?