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

Protection and control

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Table of Contents

Basic functions

Table 76: Station authority level "L,S,R" using CONTROL function block

CTRL.LLN0.LocS

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.

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.

Station client reserves the control operating by writing controllable point LocSta.

Client IEC 61850 command originator category is remote.

Client IEC 61850 command originator category is station.

CTRL_STA unconnected in application configuration. Station client reserves the control operating

by writing controllable point LocSta.

L/R Control status

CTRL.LLN0.MltL

Control access

CTRL.LLN0.Loc

IEC 61850 client

Technical Manual

1MRS759142 F