SMA CLUSTER CONTROLLER Installation - Manual (Page 17)

Implementation and feedback of setpoints for active power limitation when PV
electricity is directly marketed
The PV current generated by your system can be directly marketed. The Cluster Controller can
receive active power limitation setpoints from the direct marketer as digital or analog signals or via
Modbus. The "CLCON-S-10" model provides a Modbus register for sending setpoints via Modbus.
The "CLCON-10" model provides two Modbus registers.
The Cluster Controller can provide feedback about the current feed-in power of the system to the
direct marketer via digital or analog signals. To avoid conflicts when different setpoints are used by
the grid operator and the direct marketer, the Cluster Controller always implements the setpoint that
more strongly limits the active power of the system.
Sending the System Data to an FTP Server and/or the Sunny Portal Internet
Portal
The Cluster Controller can automatically send the system data that has been read out to an
arbitrary FTP server and/or the Sunny Portal Internet portal via the Internet. The Cluster Controller
establishes the connection to the FTP server and/or Sunny Portal e.g. via a router.
4 Product Description SMA Solar Technology AG / SMA America, LLC
Installation Manual 17 ClusterController-IA-en-14