ABB REF610 feeder protection relay Fault recording and communication function

Fault record types and storage
Event record:
Up to 100 events can be recorded, including protection phase start/trip, digital input status changes, communication anomalies, etc. Each event contains a timestamp (accurate to milliseconds), event code, and relevant parameter values (such as fault current, phase imbalance, etc.).
Events are sorted by priority, with the highest priority being internal relay failure (IRF), followed by trip events, and finally start/alarm events.
Fault Record (FR):
Record detailed data of the last 5 faults, including three-phase current, ground current, thermal level, triggering stage, and duration at the time of the fault, and support reading through parameters V1-V24.
The data is stored in non-volatile memory (EEPROM), retained after power failure, and can be cleared through Master Reset.