ABB Relion 650 Series Technical Manual page 326

Section 10
Control
level without any priority. When the external panel switch is in Off position the PSTO value shows
the actual state of switch that is, 0. In this case it is not possible to control anything.
Table 242: PSTO values for different Local panel switch positions
Local panel switch
positions
0 = Off
1 = Local
1 = Local
2 = Remote
2 = Remote
3 = Faulty
Blockings
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:
• Blocking of position indications, BL_UPD. This input will block all inputs related to apparatus
positions for all configured functions within the bay.
• Blocking of commands, BL_CMD. This input will block all commands for all configured
functions within the bay.
• Blocking of function, BLOCK, signal from DO (Data Object) Behavior (IEC 61850–8–1). If DO
Behavior is set to "blocked" it means that the function is active, but no outputs are generated,
no reporting, control commands are rejected and functional and configuration data is visible.
The switching of the Local/Remote switch requires at least system operator level. The password
will be requested at an attempt to operate if authority levels have been defined in the IED.
Otherwise the default authority level, SuperUser, can handle the control without LogOn. The users
and passwords are defined in PCM600.
10.4.5.2 Local remote/Local remote control LOCREM/LOCREMCTRL
The function block Local remote (LOCREM) handles the signals coming from the local/remote
switch. The connections are seen in figure 168, where the inputs on function block LOCREM are
connected to binary inputs if an external switch is used. When a local HMI is used, the inputs are
not used and are set to FALSE in the configuration. The outputs from the LOCREM function block
control the output PSTO (Permitted Source To Operate) on Bay control (QCBAY).
320
PSTO value AllPSTOValid
(configuration
parameter)
0 --
1 FALSE
5 TRUE
2 FALSE
5 TRUE
3 --
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Possible locations that shall be able
to operate
Not possible to operate
Local Panel
Local or Remote level without any
priority
Remote level
Local or Remote level without any
priority
Not possible to operate
Line distance protection REL650
1MRK 506 326-UUS B
M13446-50 v3
M17087-3 v4
Technical manual