The indication function tracks 0 to 1 changes of binary signals during the recording periodof the collection window. This means that constant logic zero, constant logic one or statechanges from logic one to logic zero will not be visible in the list of indications. Signalsare not time tagged. In order to be recorded in the list of indications the:• the signal must be connected to binary input BxRBDR function block• the DRPRDRE parameter Operation must be set Enabled• the DRPRDRE must be trigged (binary or analog)• the input signal must change state from logical 0 to 1 during the recording time.Indications are selected with the indication mask (IndicationMask) when setting thebinary inputs.The name of the binary signal that appears in the Indication function is the user-definedname assigned at configuration of the IED. The same name is used in disturbance recorderfunction, indications and event recorder function.14.5.5 Technical dataTable 474:DRPRDRE technical dataFunction ValueBuffer capacity Maximum number of indications presented forsingle disturbance96Maximum number of recorded disturbances 10014.6 Event recorder14.6.1 FunctionalityQuick, complete and reliable information about disturbances in the primary and/or in thesecondary system is vital, for example, time-tagged events logged during disturbances.This information is used for different purposes in the short term (for example correctiveactions) 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 (Comtradefile).Section 14 1MRK 506 335-UUS AMonitoring646Technical manual
