Non-Volatile Latches - GE C30 Instruction Manual

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5 SETTINGS

PATH: SETTINGS
FLEXLOGIC
 LATCH 1
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The non-volatile latches provide a permanent logical flag that is stored safely and will not reset upon reboot after the relay
is powered down. Typical applications include sustaining operator commands or permanently block relay functions, such as
Autorecloser, until a deliberate interface action resets the latch. The settings element operation is 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.
LATCH N
LATCH N
LATCH N
TYPE
SET
RESET
Reset
ON
OFF
Dominant
OFF
OFF
ON
ON
OFF
ON
Set
ON
OFF
Dominant
ON
ON
OFF
OFF
OFF
ON
Figure 5–31: NON-VOLATILE LATCH OPERATION TABLE (N = 1 to 16) AND LOGIC
GE Multilin


NON-VOLATILE LATCHES

LATCH 1
FUNCTION: Disabled
LATCH 1 TYPE:
Reset Dominant
LATCH 1 SET:
Off
LATCH 1 RESET:
Off
LATCH 1
TARGET: Self-reset
LATCH 1
EVENTS: Disabled
LATCH N
LATCH N
ON
OFF
ON
OFF
Previous
Previous
State
State
OFF
ON
OFF
ON
ON
OFF
ON
OFF
Previous
Previous
State
State
OFF
ON
C30 Controller System
5.5.8 NON-VOLATILE LATCHES
LATCH 1(16)
Range: Disabled, Enabled
Range: Reset Dominant, Set Dominant
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5.5 FLEXLOGIC™
5
5-91

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