Danfoss is a leader in solar inverters.
Their main line of solar inverters lack of monitoring features: they provide only a RSY485 port on the inverter and they provide you a documented protocol without providing a software to monitor
Given the documentation of the protocol it would be nice to:
1) Translate the information from RS485 to an application able to monitor performance of the inverters during the time
2) store historical data
3) Functions could be local
4) In future, being able to export the data real time to a cloud web server to collect info from many solar inverters.