No official option.
(But we know that customers use wifi bridges which are internally connected with one Ethernet port and then create a wifi hotspot.)
All inverter has an internal webserver. This is a mini data logger. You can connect the inverter via Ethernet cable to a router and can log in to the inverter and see the production, current, voltage, etc. You can also send the data to a portal.
Extra accessories for communication:
Do not need, check ethernet connection above
Extra fee for monitoring web portal:
Master-slave configuration is not possible
they must commission every single inverter on the field,
it is possible to configure one inverter and then connect you your laptop with the inverter and save the configuration as a .txt file. Then connect you your laptop with the next inverter and upload the configuration .txt file. It is important that all inverters have the same software level
Further information check Kaco website