Advanced protocol customization - 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 - Relion 615 series - PCL2 - IEC - ANSI - 15.05.2025

REX615 Modbus Master Communication Protocol Manual

Different advanced customization features are supported by the protocol; these features can be enabled via the Prtl Customization configuration parameter. The Prtl Customization parameter is a 31-bit bitmask. Currently, this parameter is reserved for future use.

Note: Possible firmware version dependent expansions to customization parameter can be queried from ABB Customer support.

The use of advanced customization features can be monitored in Configuration > Communication > Protocols > Modbus Master (n).