Siemens SIPROTEC 7SJ62 Instruction Manual page 321

Current Switch- Switching
ing Authority Authority
Status DIGSI
LOCAL Not
checked
LOCAL checked
REMOTE Not
checked
REMOTE checked
Switching Mode
7SJ62 Manual
C53000-G1140-C121-1
− DIGSI ®
4
− REMOTE (commands are issued from SCADA)
The switching authority condition /2&$/ allows commands from the user interface of
the relay, but not remote or DIGSI commands.
The selection between local and remote is made using the local user interface. A pass-
word is required, to make this selection.
The switching authority condition ',*6, allows commands to be initiated using
®
DIGSI 4. Commands are allowed for both a remote and a local DIGSI
Configuration Programming:
1. Specific Device (e.g., switching device):
2. Specific Device (e.g., switching device): Switching authority REMOTE (check for
In detail, the following interlocking logic is derived when using default configuration
settings:
Command issued
Locally
Allowed
Allowed
Interlocked -
switching
authority REMOTE *1
Interlocked -
switching
authority DIGSI *1
*1
) By-passes Interlock if Configuration for: "switching authority LOCAL (check for Local status): is not marked.
*2
) By-passes Interlock if Configuration for: "switch authority REMOTE (check for CLOSE, REMOTE, or
DIGSI status): is not marked
SC = source of command
SC = AUTO: Commands that are initiated internally (command processing in the CFC)
are not subject to switching authority and are therefore always allowed.
There are three modes:
− Local
− Remote
− Auto
The switching mode determines whether selected interlocking conditions will be acti-
vated or deactivated at the time of the switching operation.
The following switching modes are defined:
Switching authority LOCAL (check for
commands initiated Locally via keypad):
y/n
SAS, REMOTE, or DIGSI commands:
y/n
Command issued from
SAS or SCADA
Interlocked -
switching
authority LOCAL *2
Interlocked -
switching
authority LOCAL *2
Allowed
Interlocked -
switching
authority DIGSI *2
Functions
®
4 connection.
Command issued from
DIGSI
Interlocked - DIGSI not
checked
Interlocked -
switching
authority LOCAL *2
Interlocked - DIGSI not
checked
Allowed
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