ABB RELION SMU615 Technical Manual page 114

Basic functions
3.13.8.5 Station authority level "L,R,L+R"
Station authority level "L,R, L+R" adds multilevel access support. Control access can
also be simultaneously permitted from local or remote location. Simultaneous local
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. Control access with IEC 61850
originator category station is interpreted as remote access.
IEC 61850
remote
Figure 75: Station authority is "L,R,L+R"
When station authority level "L,R, L+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 not applicable for this station
authority level.
Table 147: Station authority "L,R,L+R" using CONTROL function block
L/R Control
Control FB input CTRL.LLN0.LocSta
CTRL_OFF N/A
CTRL_LOC N/A
CTRL_STA N/A
CTRL_REM N/A
CTRL_ALL N/A
3.13.8.6 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.
1
Client IEC 61850 command originator category check is not performed.
114
REMOTE LOCAL
IEC 61850 IEC 61850
remote remote
IED IED
L/R Control status
CTRL.LLN0.MltLev
FALSE
FALSE
FALSE
FALSE
TRUE
OFF
IEC 61850 IEC 61850 IEC 61850
remote remote remote
IED
L/R state
CTRL.LLN0.LocKey
HMI
0
1
0
2
4
1MRS758407 C
L+R
IEC 61850 IEC 61850
remote remote
IED
Control access
Local user IEC 61850 client
x
x
x x
Technical Manual
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SMU615