If I understand things correctly, the project at GitHub - InfernoEmbedded/PowerScraper: A scraper for power devices to feed data to OpenEnergyMonitor allows reading power generation data from Solax inverters, but uses Modbus over TCP by default.
On our Solax X3, however, there is no TCP/IP connection at all. The only port that seems useful is what they call an RS485 port in the manual, with an RJ-45 connector. Questions:
- Can this port be used to extract production data at the same interval as my current energy consumption monitoring using emoncms?
- How do I connect physically to this? All I found so far is that I need a USB - RS485 converter, but when I google for these they usually don’t have an RJ-45 connector, and for the ones that do I’m not sure if the pin layout is always the same or brand-specific? In the Solax manual they mention a 485_A and 485_B pin, are those the ones to use? There is also talk about using the correct terminating resistors, what is that about and how do you put these in?
Sorry for the beginner questions, I’m more a software than a hardware person