Electrical Connection
SMA America, LLC
62
SI5048U-TUS121440
Technical Description
Connecting Sunny Island to Sunny Boy and Sunny WebBox with one RS485
cable
Connecting Sunny Island to Sunny Boy and Sunny WebBox with seperate RS485
cables
Data Transmission Speed
The Sunny Island can be operated at different data transmission rates to communicate with external
devices. For this, adjust the ”250.06 ComBaud” parameter.
Setting the Baud Rate
If PV inverters are connected to the communication bus, then the baud rate must be set to
1,200 bps (default setting).