The blue'Log basic module has 2 x RS485 / 422 bus inputs.
In some constellations, more than 2 x RS485 / 422 inputs are required:
Example:
Connection of two inverters with different protocols and a network analyzer
(KACO inverter, SMA string inverter, Janitza UMG-604 via RTU).
Additional 2 x RS485 / 422 inputs can be provided with the RS485 / 422 expansion module:
Data sheet MX module RS485 / 422 (PDF)
Operating instructions MX module RS485 / 422 (PDF)
The following expansion modules can be connected to the blue'log:
MX modules RS485 / 422 (max. 3)
MX modules Multi IO (max. 5)