Station Authority Level "L,R - ABB RELION 620 Series Technical Manual

1MRS757644 F
3.17.10.4
Table 179: Station authority level "L,R" using R/L button
L/R control
R/L button CTRL.LLN0.LocSta
Local
Remote
Off
1) Client IEC 61850 command originator category check is not performed.
620 series
Technical Manual
the client, and remote IEC 61850 control access must be allowed by the relay station
authority. CTRL.LLN0.LocSta data object value is retained in the nonvolatile
memory. The present control status can be monitored in the HMI or PCM600 via
Monitoring/Control command with the LR state parameter or from the IEC 61850
data object CTRL.LLN0. LocKeyHMI.
IEC 61850 command originator category is always set by the IEC 61850 client. The
relay supports station and remote IEC 61850 command originator categories,
depending on the selected station authority level.

Station authority level "L,R"

Relay's default station authority level is "L,R". In this scenario only local or remote
control access is allowed. Control access with IEC 61850 command originator
category station is interpreted as remote access. There is no multilevel access.
REMOTE
IEC 61850 IEC 61850 IEC 61850
remote remote remote
IED
GUID-08BACCE4-AF4A-4150-A01A-49FBEE63B438 V1 EN
Figure 93: Station authority is "L,R"
When station authority level "L,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 inputs CTRL_STA and CTRL_ALL are not applicable for
this station authority level.
L/R control status
CTRL.LLN0.MltLev
N/A FALSE
N/A FALSE
N/A FALSE
LOCAL OFF
IEC 61850 IEC 61850 IEC 61850
remote remote remote
IED IED
L/R state
CTRL.LLN0.LocKeyHMI
1
2
0
Section 3
Basic functions
Control access
Local user
IEC 61850 client
x
1)
x
177