Station Authority Level "L,S,R - ABB RELION REX640 Technical Manual

1MRS759142 F
3.8.6

Station authority level "L,S,R"

Station authority level "L,S,R" adds station control access. In this level IEC 61850
command originator category validation is performed to distinguish control
commands with IEC 61850 command originator category set to "Remote" or
"Station". There is no multilevel access.
IEC 61850
station
Figure 53: Station authority is ""L,S,R"
When the station authority level "L,S,R" is used, the control access can be
selected using R/L button or CONTROL function block. IEC 61850 data object
CTRL.LLN0.LocSta and CONTROL function block input CTRL_STA are applicable for
this station authority level.
Station control access can be reserved by using R/L button or CONTROL function
block together with IEC 61850 data object CTRL.LLN0.LocSta
Table 75: Station authority level "L,S,R" using R/L button
L/R Control
R/L button CTRL.LLN0.LocS
1
ta
Local FALSE
Remote FALSE
Remote TRUE
Off FALSE
1
Station client reserves the control operating by writing controllable point LocSta.
2
Client IEC 61850 command originator category is remote.
3
Client IEC 61850 command originator category is station.
REX640
Technical Manual
LOCAL REMOTE
IEC 61850 IEC 61850
remote
IEC 61850
station
IED IED
L/R Control status
CTRL.LLN0.MltL L/R state
ev CTRL.LLN0.Loc
KeyHMI
FALSE
FALSE
FALSE
FALSE
STATION
IEC 61850
remote remote
IEC 61850
station
IED
Control access
Local user
1 x
2
3
0
Basic functions
OFF
IEC 61850
remote
IEC 61850
station
IED
IEC 61850 client IEC 61850
2 3
client
x
x
139