Edit: Adding the SMA error code for google to find.
10120 Currently permitted number of parameterizations exceeded
Read the last 1 day of conversations.
Got a reply and a really great explanation of the issue by SMA support:
The flash memory of the inverter can be destroyed by too many parametrizations in specific sections. This event is triggered to protect the inverter hardware by blocking further parametrization.
The event is triggered after 1000 parameter changes. Once triggered the parameter changes are limited to 1 change per 20 operation hours. This is to protect the hardware from final damage.
Example: If the inverter counted 40 operation hours after the event, then 2 further parameter changes / settings are possible.
The number of changes was calculated for the complete lifetime of the inverter.
