Modbus Slave attachment to the Master - Arc protection - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Grid automation - Busbar differential protection (high impedance) - Line differential protection - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Interconnection protection - Generator protection - Power management/Load shedding - Modbus Communication Manual - REX615 Protection and control - PCL2 - IEC - ANSI - 30.09.2025

REX615 Modbus Master Communication Protocol Manual

After its activation, the instance begins sending modbus data read requests to the configured Modbus Slave units.

As the Modbus master application only supports serial connections, the instance must be attached to the intended serial port.