ABB RELION SMU615 Technical Manual page 115

1MRS758407 C
IEC 61850
station
Figure 76: Station authority is "L,S,R"
When the station authority level "L,S,R" is used, the control access can be selected
using the 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 the CONTROL function block
together with IEC 61850 data object CTRL.LLN0.LocSta.
Table 148: Station authority level "L,S,R" using CONTROL function block
L/R Control
Control FB input CTRL.LLN0.Lo
1
cSta
CTRL_OFF FALSE
CTRL_LOC FALSE
CTRL_STA TRUE
4
CTRL_REM TRUE
CTRL_REM FALSE
CTRL_ALL FALSE
3.13.8.7 Station authority level "L,S,S+R,L+S,L+S+R"
Merging unit's default station authority level is "L,S,S+R,L+S,L+S+R". Station
authority level "L,S,S+R,L+S,L+S+R" adds station control access together with
several different multilevel access scenarios. Control access can also be
simultaneously permitted from local, station or remote location. Simultaneous local,
station or remote control operation is not allowed as one client and location at time
can access controllable objects and they remain reserved until the previously started
control operation is first completed by the client.
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.
4
CTRL_STA unconnected in application configuration. Station client reserves the control operating
by writing controllable point LocSta
SMU615
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
FALSE
FALSE
STATION
IEC 61850
remote remote
IEC 61850
station
IED
Control access
Local user
0
1 x
3
3
2
0
Basic functions
OFF
IEC 61850
remote
IEC 61850
station
IED
IEC 61850 client IEC 61850 client
2 3
x
x
x
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