GE N60 Instruction Manual page 278

5.5 FLEXLOGIC
The summator performs the following operation:
where: X represents the programmed input of summator N (determined by the
S represents the programmed scale of summator N (determined by the
P represents the programmed position of summator N (determined by the
The resulting Y value can be set as absolute or signed, allowing switching between the signed and absolute values of the
summator.
A user-programmable threshold is available to compare the Y value with a constant when driving the output operand:
where: Op is an output FlexLogic operand (for example,
D is the user-programmable threshold (for example,
Y is the operating value derived earlier (for example,
The Y value becomes a FlexAnalog parameter itself. As such, it can be used by other summators, FlexElements, and user-
programmable displays.
The settings for summator 1 are described below. The description applies to all six summators.
5
• SUMMATOR 1 FUNCTION: When set to "Enabled", this setting allows summator functionality.
• SUMMATOR 1 INPUT MODE: This setting how the output data is formatted. When set to "Signed", the sign (positive/
negative) of the input data summation remains intact. When set to "Absolute", the absolute value of the summation is
used as the output value.
• SUMMATOR 1 HOLD: The output value to the summator is frozen when the FlexLogic operand assigned to this set-
ting is active (on).
• SUMMATOR 1 PICKUP: When the output value of the summator is greater than the value assigned to this setting, the
FlexLogic operand is activated (set to on).
SUMMATOR 1 OP
• SUMMATOR 1 HYSTERESIS: When the output value of the summator falls below the
TOR 1 HYSTERESIS
is "1.000" and the
TOR 1 PICKUP
to off when the resultant output value falls below 0.970.
• SUMMATOR 1 UNITS: This setting creates a character label for the summator output value display.
• SUMMATOR 1 PU BASE: This setting defines the per-unit base factor when using the
alog quantity in other N60 features, such as FlexElements. This value is used to normalize the
FlexAnalog quantity (that is, change it to a per-unit quantity). Refer to the FlexElements section for additional details on
per-unit base values.
• SUMMATOR 1 INPUT1(6): These settings select the FlexAnalog quantity to use as a summator input.
• SUMMATOR 1 SCALE1(6): These settings apply a scale factor to their corresponding FlexAnalog input quantity as it
is evaluated.
• SUMMATOR 1 POS1(6): These settings determines if a selected input is used during an evaluation of the summation
process. When the FlexLogic operand selected by this setting is activated (set to on), the summator will use the
item multiplied by it's corresponding
MATOR 1 INPUT
• SUMMATOR 1 EVENTS: This setting is used to generate events for the summator. The
is created on the rising edge of the
5-160
Y P S X
= +
1 1 1
   
Op Y D
value, the FlexLogic operand is deactivated (set to off). For example, if the
SUMMATOR 1 OP
SUMMATOR 1 HYSTERESIS
SUMMATOR 1 OP
N60 Network Stability and Synchrophasor Measurement System

P S X P S X
+ +
2 2 2 6 6 6
SUMMATOR N INPUT1(6)
SUMMATOR N SCALE 1(6)
    D  
or Op abs Y
);
SUMMATOR 1 OP
);
SUMMATOR 1 PICKUP
SUMMATOR 1 OUTPUT
is "3.0%", then the
SUMMATOR 1 OP
setting and apply it to the resultant output.
SUMMATOR 1 SCALE
FlexLogic operand.
5 SETTINGS
settings);
settings);
settings).
SUMMATOR N POS1(6)
)
SUMMATOR 1 PICKUP
FlexLogic operand is set
SUMMATOR 1 OUTPUT
SUMMATOR 1 OUTPUT
SUMMATOR 1 OPERATE
GE Multilin
(EQ 5.8)
(EQ 5.9)
–
SUMMA-
SUMMA-
FlexAn-
SUM-
event