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Section 8
Control functions
8.1
Position evaluation POS_EVAL
8.1.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Position evaluation
POS_EVAL
-
-
8.1.2
Function block
POS_EVAL
POSITION
OPENPOS
CLOSEPOS
IEC09000079_1_en.vsd
IEC09000079 V1 EN
Figure 164:
POS_EVAL function block
8.1.3
Functionality
Position evaluation (POS_EVAL) function converts the input position data signal
POSITION, consisting of value, time and signal status, to binary signals OPENPOS
or CLOSEPOS.
The output signals are used by other functions in the interlocking scheme.
8.1.4
Operation principle
POS_EVAL
POSITION
OPENPOS
CLOSEPOS
IEC08000469-1-en.vsd
Position including quality
Open/close position of
switch device
IEC08000469-1-EN V1 EN
Figure 165:
Logic diagram
Only the value, open/close, and status is used in this function. Time information is not
used.
1MRS757256 F
Section 8
Control functions
PML630/Compact Load-Shedding Solution
317
Technical Manual
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