Not sure on what exact settings you need for the Eastrom SDM630, but the baud rate seems a bit high, I suggest starting with 9600 and see what happens.
Also, I see port 26 and 23 used, did you set those values? I would expect to see 502 there.
These are my settings for a similar waveshare device connected to a Growatt inverter:
(Suggestion: set the IP type to DHCP and add a reservation to your router if possible)
