GE D60 Instruction Manual page 358

FLEXLOGIC
Some operands can be re-named. These are the names of the breakers in the breaker control feature, the ID (identification)
of contact inputs and outputs, the ID of virtual inputs, and the ID of virtual outputs. If the user changes the default name or
ID of any of these operands, the assigned name appears in the relay list of operands. The default names are shown in the
FlexLogic operands table.
The characteristics of the logic gates are tabulated in the following table, and the operators available in FlexLogic are
listed in the FlexLogic operators table.
Table 5-25: FlexLogic gate characteristics
Gates
NOT
OR
AND
NOR
NAND
XOR
Table 5-26: FlexLogic operators
Type Syntax
Editor INSERT
DELETE
End END
One-shot POSITIVE ONE SHOT
5
NEGATIVE ONE SHOT
DUAL ONE SHOT
Logic NOT
gate
OR(2)
↓
OR(16)
AND(2)
↓
AND(16)
NOR(2)
↓
NOR(16)
NAND(2)
↓
NAND(16)
XOR(2)
LATCH (S,R)
Timer TIMER 1
↓
TIMER 32
Assign = Virt Op 1
virtual ↓
output = Virt Op 96
5-180
Number of inputs Output is '1' (= ON) if...
1 input is '0'
2 to 16 any input is '1'
2 to 16 all inputs are '1'
2 to 16 all inputs are '0'
2 to 16 any input is '0'
2 only one input is '1'
Description
Insert a parameter in an equation list
Delete a parameter from an equation list
The first END encountered signifies the last entry in
the list of processed FlexLogic parameters
One shot that responds to a positive going edge
One shot that responds to a negative going edge
One shot that responds to both the positive and
negative going edges
Logical NOT
2 input OR gate
↓
16 input OR gate
2 input AND gate
↓
16 input AND gate
2 input NOR gate
↓
16 input NOR gate
2 input NAND gate
↓
16 input NAND gate
2 input Exclusive OR gate
Latch (set, reset): reset-dominant
Timer set with FlexLogic timer 1 settings
↓
Timer set with FlexLogic timer 32 settings
Assigns previous FlexLogic operand to virtual
output 1
↓
Assigns previous FlexLogic operand to virtual
output 96
Notes
A 'one shot' refers to a single input gate that
generates a pulse in response to an edge on
the input. The output from a 'one shot' is
True (positive) for only one pass through the
FlexLogic equation. There is a maximum of
64 'one shots.'
Operates on the previous parameter
Operates on the 2 previous parameters
↓
Operates on the 16 previous parameters
Operates on the 2 previous parameters
↓
Operates on the 16 previous parameters
Operates on the 2 previous parameters
↓
Operates on the 16 previous parameters
Operates on the 2 previous parameters
↓
Operates on the 16 previous parameters
Operates on the 2 previous parameters
The parameter preceding LATCH(S,R) is the
reset input. The parameter preceding the
reset input is the set input.
The timer is started by the preceding
parameter. The output of the timer is
TIMER #.
The virtual output is set by the preceding
parameter
D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS