5-78 D60 Line Distance Relay GE Multilin5.4 FLEXLOGIC™ 5 SETTINGS55.4.8 NON-VOLATILE LATCHESPATH: SETTINGS ÖØ FLEXLOGIC ÖØ NON-VOLATILE LATCHES Ö LATCH 1(16)The non-volatile latches provide a permanent logical flag that is stored safely and will not reset upon reboot after the relayis powered down. Typical applications include sustaining operator commands or permanently block relay functions, such asAutorecloser, until a deliberate HMI action resets the latch. The settings, logic, and element operation are described below:• LATCH 1 TYPE: This setting characterizes Latch 1 to be Set- or Reset-dominant.• LATCH 1 SET: If asserted, the specified FlexLogic™ operands 'sets' Latch 1.• LATCH 1 RESET: If asserted, the specified FlexLogic™ operand 'resets' Latch 1.Figure 5–37: NON-VOLATILE LATCH OPERATION TABLE (N=1 to 16) AND LOGIC LATCH 1LATCH 1FUNCTION: DisabledRange: Disabled, EnabledMESSAGE LATCH 1 TYPE:Reset DominantRange: Reset Dominant, Set DominantMESSAGE LATCH 1 SET:OffRange: FlexLogic™ operandMESSAGE LATCH 1 RESET:OffRange: FlexLogic™ operandMESSAGE LATCH 1TARGET: Self-resetRange: Self-reset, Latched, DisabledMESSAGE LATCH 1EVENTS: DisabledRange: Disabled, Enabled842005A1.CDRLATCH 1 FUNCTION:LATCH 1 TYPE:LATCH 1 SET:LATCH 1 SET:RUNSETRESETSETTINGSETTINGSETTINGSETTINGFLEXLOGIC OPERANDSDisabled=0Off=0Off=0Enabled=1LATCH 1 ONLATCH 1 OFFLATCH NTYPE LATCH NSET LATCH NRESET LATCH NON LATCH NOFFResetDominant ON OFF ON OFFOFF OFF PreviousState PreviousStateON ON OFF ONOFF ON OFF ONSetDominant ON OFF ON OFFON ON ON OFFOFF OFF PreviousState PreviousStateOFF ON OFF ON
