In this firmware modification, we have added a module for communication according to the IEC 60870-5-104 protocol, which is used by SCADA systems, for example by electricity distribution operators. NetControl appears as a Slave and expects a connection from a SCADA system via TCP.

 For greater versatility, a Modbus Master module is also integrated, through which data can be exchanged using this protocol via TCP or RS-485 (a model with such a port is required). There is a close connection between the two protocols - you can "transfer" Modbus registers to and from the IEC104 SCADA system, which allows solving telemetry and control tasks of photovoltaic inverters.

Through IEC104, you can also access the IO and virtual ports available for the model.