How to configure the MODBUS RTU IN EWON device
You can refer to AUG-0080-00 - Poll data from Modbus RTU for information on polling from a Modbus RTU device with your Ewon. Because Modbus RTU is a serial protocol, you’ll need a Flexy that either has a built in serial port, like the Flexy 202, or a Flexy with the serial extension card, FLA3301.