REX615 Modbus Master Communication Protocol Manual - 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 Protection and Control - PCL2 - IEC - ANSI

Document ID: 2NGA002792

Issued: 2026-02-25

Revision: A

Product version: 1.0

Software version: 6.1

PCL version: PCL2

© Copyright 2026 ABB. All rights reserved