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

Basic functions
3.8.5

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 IEC61850
originator category station is interpreted as remote access.
IEC 61850
remote
Figure 52: Station authority is "L,R,L+R"
When station authority level "L,R, L+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 not applicable
for this station authority level.
Table 73: Station authority level "L,R,L+R" using R/L button
L/R Control
R/L button CTRL.LLN0.LocSta
Local N/A
Remote N/A
Local + Remote N/A
Off N/A
Table 74: 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
1
Client IEC 61850 command originator category check is not performed.
2
Client IEC 61850 command originator category check is not performed.
138
REMOTE LOCAL
IEC 61850 IEC 61850
remote remote
IED IED
L/R Control status
CTRL.LLN0.MltLev
FALSE
FALSE
TRUE
FALSE
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
1
2
4
0
L/R state
CTRL.LLN0.LocKey
HMI
0
1
0
2
4
1MRS759142 F
L+R
IEC 61850 IEC 61850
remote remote
IED
Control access
Local user IEC 61850 client
x
x
Control access
Local user IEC 61850 client
x
x
Technical Manual
1
x
x
2
x
x
REX640