is it possible to connect the WEM380T to the SolarEdge inverter via RS485?
If possible, what settings should be made?

I want to see the imported exported and consumed energy in the SolarEdge monitoring application

Hi,
Sorry, the energy meter of IAMMETER is an independent product, it can not work with any other brand inverter.
This page is used for integrating the Modbus energy meter with DTU and collecting data in IAMMETER, which is only used in some projects implementation of IAMMETER, not for end-user.