I mainly use the G3 for protocol conversion so I have a standardized way to connect to the machine PLC from MES/shopfloor systems. Now I’m using modbus to read/write to holding registers, only 16bit int and float are possible. Using DNP3 will allow us to read/write events, 32bit int/float, strings and date/time. It will also reduce the network traffic because DNP3 is event based, the master will only report changes to the clients.