10.5.2 Functionality
The logic rotating switch for function selection and LHMI presentation SLGGIO (or the
selector switch function block) is used to get an enhanced selector switch functionality
compared to the one provided by a hardware selector switch. Hardware selector switches
are used extensively by utilities, in order to have different functions operating on pre-set
values. Hardware switches are however sources for maintenance issues, lower system
reliability and an extended purchase portfolio. The logic selector switches eliminate all
these problems.
10.5.3 Function block
IEC09000091_1_en.vsd
SLGGIO
BLOCK
PSTO
UP
DOWN
^P01
^P02
^P03
^P04
^P05
^P06
^P07
^P08
^P09
^P10
^P11
^P12
^P13
^P14
^P15
^P16
^P17
^P18
^P19
^P20
^P21
^P22
^P23
^P24
^P25
^P26
^P27
^P28
^P29
^P30
^P31
^P32
SWPOSN
IEC09000091 V1 EN
Figure 154: SLGGIO function block
10.5.4 Signals
Table 227: SLGGIO Input signals
Name
Type Default Description
BLOCK BOOLEAN 0 Block of function
PSTO INTEGER 0 Operator place selection
UP BOOLEAN 0 Binary "UP" command
DOWN BOOLEAN 0 Binary "DOWN" command
Section 10 1MRK 511 287-UUS A
Control
346
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