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10.4.2.4
Logic diagram
The function contains logic to enable the open and close commands respectively if the
interlocking conditions are fulfilled. That means also, if the switch being controlled has its
position defined as open (via POSOPEN) for example, then the appropriate enable signal
output (in this case EN_OPEN) is false. The switch operation enable signals EN_OPEN
and EN_CLOSE can be true at the same time only in the intermediate and bad position
state of the switch (defined via POSOPEN and POSCLOSE) and if they are enabled by the
interlocking function. The position inputs come from the logical nodes Circuit breaker/
Circuit switch (SXCBR/SXSWI) and the enable signals , OPEN_EN and CLOSE_EN
come from the interlocking logic. The outputs are connected to the logical node Switch
controller (SCSWI). One instance per switching device is needed.
OPEN_EN
POSOPEN
POSCLOSE
EN_OPEN
EN_CLOSE
CLOSE_EN
SCILO
en04000525_ansi.vsd
OR
OR
XOR
AND
AND
AND
AND
NOT
ANSI04000525 V1 EN
Figure 130:
SCILO (3) function logic diagram
10.4.2.5
Signals
Table 199:
SCILO (3) Input signals
Name
Type
Default
Description
POSOPEN
BOOLEAN
0
Open position of switch device
POSCLOSE
BOOLEAN
0
Closed position of switch device
OPEN_EN
BOOLEAN
0
Open operation from interlocking logic is enabled
CLOSE_EN
BOOLEAN
0
Close operation from interlocking logic is enabled
Table 200:
SCILO (3) Output signals
Name
Type
Description
EN_OPEN
BOOLEAN
Open operation at closed or intermediate or bad position
is enabled
EN_CLOSE
BOOLEAN
Close operation at open or intermediate or bad position
is enabled
1MRK 511 287-UUS A
Section 10
Control
279
Technical manual
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