ABB REG650 Technical Manual page 303

1MRK 502 034-UEN -
Technical Manual
To adapt the signals from the local HMI or from an external local/remote switch,
the function blocks LOCREM and LOCREMCTRL are needed and connected to
QCBAY.
Permitted Source To Operate (PSTO)
The actual state of the operator place is presented by the value of the Permitted
Source To Operate, PSTO signal. The PSTO value is evaluated from the local/
remote switch position according to table 194. In addition, there is one
configuration parameter that affects the value of the PSTO signal. If the parameter
AllPSTOValid is set and LR-switch position is in Local or Remote state, the PSTO
value is set to 5 (all), that is, it is permitted to operate from both local and remote
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 194: PSTO values for different Local panel switch positions
Local panel switch PSTO value
positions
0 = Off 0
1 = Local 1
1 = Local 5
2 = Remote 2
2 = Remote 5
3 = Faulty 3
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
AllPSTOValid Possible locations that shall be able to
(configuration operate
parameter)
-- Not possible to operate
FALSE Local Panel
TRUE Local or Remote level without any
priority
FALSE Remote level
TRUE Local or Remote level without any
priority
-- Not possible to operate
Section 11
Control
297