ABB RELION RET670 Applications Manual page 708

Section 15
Control
702
Control operation can be performed from the local IED HMI. If users are defined in the
IED, then the local/remote switch is under authority control, otherwise the default user
can perform control operations from the local IED HMI without logging in. The default
position of the local/remote switch is on remote.
Accepted originator categories for PSTO
If the requested command is accepted by the authority control, the value will change.
Otherwise the attribute blocked-by-switching-hierarchy is set in the cause signal. If the
PSTO value is changed during a command, then the command is aborted.
The accepted originator categories for each PSTO value are shown in
Table 53: Accepted originator categories for each PSTO
Permitted Source To Operate
0 = Off
1 = Local
2 = Remote
3 = Faulty
4 = Not in use
5 = All
6 = Station
7 = Remote
PSTO = All, then it is no priority between operator places. All operator places are
allowed to operate.
According to IEC 61850 standard the orCat attribute in originator category are defined
in Table 54
Table 54: orCat attribute according to IE C61850
Value Description
0 not-supported
1 bay-control
2 station-control
3 remote-control
4 automatic-bay
5 automatic-station
6 automatic-remote
7 maintenance
8 process
Originator (orCat)
4,5,6
1,4,5,6
2,3,4,5,6
4,5,6
4,5,6
1,2,3,4,5,6
2,4,5,6
3,4,5,6
Transformer protection RET670 2.2 ANSI
1MRK 504 163-UUS A
Table 53.
Application manual