operate from local, station and remote level without any priority. When the external
panel switch is in Off position, the PSTO output shows the actual state of the
switch that is, 0. In this case, it is not possible to control anything. The LocSta
command value is forced to FALSE if AllPSTOValid is set to No priority.
If the setting RemoteIncStation is set to Yes and the LR-switch position is in
Remote state, the PSTO output is set to 2 (Station or Remote), that is, it is
permitted to operate from both station and remote level without any priority.
If the LR-switch position is in Remote state, and AllPSTOValid is set to Priority
and RemoteIncStation is set to No, the switching between station and remote level
control is done through the command LocSta. The command is accessible only
through the IEC 61850 Edition 2 protocol.
Table 214: PSTO values for different Local panel switch positions
Local panel
switch positions
AllPSTOValid
(setting)
RemoteInc
Station
(setting)
LocSta.CtlVal
(command)
PSTO
value
LED indications
on LHMI
Possible
locations that
shall be able to
operate
0 = Off
- - - 0 Remote and
Local Off
Not possible
to operate
1 = Local Priority - - 1 Remote Off,
Local On
Local Panel
1 = Local No priority - - 5 Remote and
Local On
Local, Station
or Remote
level without
any priority
2 = Remote
Priority No TRUE 6 Remote On,
Local Off
Station level
2 = Remote Priority No FALSE 7 Remote On,
Local Off
Remote level
2 = Remote Priority Yes - 2 Remote On,
Local Off
Station or
Remote level
2 = Remote No priority - - 5 Remote and
Local On
Local, Station
or Remote
level without
any priority
3 = Faulty
- - - 3 Remote and
Local
Flashing
Not possible
to operate
Blockings
M13446-50 v5
The blocking states for position indications and commands are intended to provide
the possibility for the user to make common blockings for the functions configured
within a complete bay.
The blocking facilities provided by the bay control function are the following:
Section 11 1MRK 506 382-UEN A
Control
388 Line distance protection REL650 2.2 IEC
Technical manual
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