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Monitor SMA Sunny Boy Inverter via Modbus
Tuesday, 7. June 2016

Our Photovoltaik installation is powered by a SMA solar inverter, which provides the Modbus protocol for monitoring installation parameters.

SMA provides for this device (and other devices with Modbus) tables with information at which address which information resides.

For Python there is the Modbus library ‘pymodbus’.

With some tinkering I made a Python application, which can be used with a graphical interface or via command line (without graphical interface). 287