Local remote LOCREM /Local remote control
LOCREMCTRL
The signals from the local HMI or from an external
local/remote switch are applied via the function
blocks LOCREM and LOCREMCTRL to the Bay
control (QCBAY) function block. A parameter in
function block LOCREM is set to choose if the
switch signals are coming from the local HMI or
from an external hardware switch connected via
binary inputs.
Circuit breaker control for circuit breaker, CBC1
The CBC1 consists of 3 functions:
• SCILO - The Logical node for interlocking.
SCILO function is used to enable a switching
operation if the interlocking conditions
permit. SCILO function itself does not
provide any interlocking functionality. The
interlocking conditions are generated in
separate function blocks containing the
interlocking logic.
• SCSWI - The Switch controller initializes and
supervises all functions to properly select
and operate switching primary apparatuses.
The Switch controller may handle and
operate on one three-phase device.
• SXCBR - The purpose of SXCBR is to
provide the actual status of positions and to
perform the control operations, that is, pass
all the commands to primary apparatuses in
the form of circuit breakers via output boards
and to supervise the switching operation and
position.
Logic rotating switch for function selection and
LHMI presentation SLGGIO
The logic rotating switch for function selection
and LHMI presentation (SLGGIO) (or the selector
switch function block) is used to get a selector
switch functionality similar 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.
Selector mini switch VSGGIO
The Selector mini switch VSGGIO function block
is a multipurpose function used for a variety of
applications, as a general purpose switch.
VSGGIO can be controlled from the menu or from
a symbol on the single line diagram (SLD) on the
local HMI.
IEC 61850 generic communication I/O functions
DPGGIO
The IEC 61850 generic communication I/O
functions (DPGGIO) function block is used to
send double indications to other systems or
equipment in the substation. It is especially used
in the interlocking and reservation station-wide
logics.
Single point generic control 8 signals SPC8GGIO
The Single point generic control 8 signals
(SPC8GGIO) function block is a collection of 8
single point commands, designed to bring in
commands from REMOTE (SCADA) to those parts
of the logic configuration that do not need
extensive command receiving functionality (for
example, SCSWI). In this way, simple commands
can be sent directly to the IED outputs, without
confirmation. Confirmation (status) of the result of
the commands is supposed to be achieved by
other means, such as binary inputs and SPGGIO
function blocks. The commands can be pulsed or
steady.
AutomationBits AUTOBITS
The Automation bits function (AUTOBITS) is used
to configure the DNP3 protocol command
handling.
9. Logic
Tripping logic common 3-phase output SMPPTRC
A function block for protection tripping is
provided for each circuit breaker involved in the
tripping of the fault. It provides pulse prolongation
to ensure a three-phase trip pulse of sufficient
length, as well as all functionality necessary for
correct co-operation with autoreclosing functions.
The trip function block also includes functionality
for breaker lock-out.
Breaker protection REQ650
1MRK 505 283-BEN -
Product version: 1.2
22 ABB
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