Table 76: Station authority level “L,S,R” using CONTROL function block
L/R Control L/R Control status Control access
R/L button CTRL.LLN0.LocS
ta
4
CTRL.LLN0.MltL
ev
L/R state
CTRL.LLN0.Loc
KeyHMI
Local user IEC 61850 client
5
IEC 61850
client
6
CTRL_OFF FALSE FALSE 0
CTRL_LOC FALSE FALSE 1 x
CTRL_STA TRUE FALSE 3
CTRL_REM
7
TRUE FALSE 3 x
CTRL_REM FALSE FALSE 2 x
CTRL_ALL FALSE FALSE 0
3.8.7 Station authority level “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.
IED
IEC 61850
remote
IEC 61850
station
IEC 61850
remote
IEC 61850
remote
IEC 61850
remote
IED
IEC 61850
station
IED
IEC 61850
station
IED
IEC 61850
station
L+SLOCAL STATION S+R
IEC 61850
remote
IEC 61850
remote
IED
IEC 61850
station
IED
IEC 61850
station
OFFL+S+R
Figure 54: Station authority is “L,S,S+R,L+S,L+S+R”
When station authority level “L,S,S+R,L+S,L+S+R” is used, 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” and “Local + Station” control access can be reserved by using R/L
button or CONTROL function block in combination with IEC 61850 data object
CTRL.LLN0.LocSta.
4
Station client reserves the control operating by writing controllable point LocSta.
5
Client IEC 61850 command originator category is remote.
6
Client IEC 61850 command originator category is station.
7
CTRL_STA unconnected in application configuration. Station client reserves the control operating
by writing controllable point LocSta.
Basic functions 1MRS759142 F
140 REX640
Technical Manual