The name of the binary signal that appears in the Indication function is the user-defined name assigned at configuration of the IED. The same name is used indisturbance recorder function, indications and event recorder function.14.5.5 Technical dataTable 381:DRPRDRE technical dataFunction ValueBuffer capacity Maximum number of indicationspresented for single disturbance96Maximum number of recordeddisturbances10014.6 Event recorder14.6.1 FunctionalityQuick, complete and reliable information about disturbances in the primary and/or inthe secondary system is vital, for example, time-tagged events logged duringdisturbances. This information is used for different purposes in the short term (forexample corrective actions) and in the long term (for example functional analysis).The event recorder logs all selected binary input signals connected to the Disturbancerecorder function. Each recording can contain up to 150 time-tagged events.The event recorder information is available for the disturbances locally in the IED.The event recording information is an integrated part of the disturbance record(Comtrade file).14.6.2 Function blockThe Event recorder has no function block of it’s own.14.6.3 Signals14.6.3.1 Input signalsThe Event recorder function logs the same binary input signals as the Disturbancereport function.14.6.4 Operation principleWhen one of the trig conditions for the disturbance report is activated, the eventrecorder logs every status change in the 96 selected binary signals. The events can be1MRK 504 135-UEN A Section 14Monitoring475Technical manual
