Functions
2.25 Breaker Control
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
387
Control Logic using CFC
For the bay interlocking a control logic can be structured via the CFC. Via specific release conditions the infor-
mation “released” or “bay interlocked” are available (e.g. object "52 Close" and "52 Open" with the data values:
ON / OFF).
Switching Authority (for devices with operator panel)
The interlocking condition "Switching Authority" serves for determining the switching authority. It enables the
user to select the authorized command source. For devices with operator panel, the following switching author-
ity ranges are defined in the following priority sequence:
• LOCAL
• DIGSI
• REMOTE
The object "Switching Authority" serves to interlock or enable LOCAL control, but not REMOTE or DIGSI com-
mands. The devices in housing of size
1
/
2
or
1
/
1
are equipped with key switches on the front panel. The top
switch is reserved for the switching authority. The position "Local" enables local control, the position "Remote"
enables remote control. For devices in housing of size
1
/
3
the switching authority can be changed between "RE-
MOTE" and "LOCAL" in the operator panel after having entered the password or by means of CFC also via
binary input and function key.
The "Switching authority DIGSI" is used for interlocking and allows commands to be initiated using DIGSI.
Commands are allowed for both a remote and a local DIGSI connection. When a (local or remote) DIGSI PC
logs on to the device, it enters its Virtual Device Number (VD). The device only accepts commands having that
VD (with switching authority = OFF or REMOTE). When the DIGSI PC logs off, the VD is cancelled.
Commands are checked for their source SC and the device settings, and compared to the information set in
the objects "Switching authority" and "Switching authority DIGSI".
Configuration
Table 2-30
Interlocking logic
1)
also "Allowed" for: ”switching authority LOCAL (check for Local status): is not marked
2)
also "Allowed" for: ”Switching authority REMOTE (check for LOCAL, REMOTE, or DIGSI status): is not marked"
3)
SC = Source of command
Switching authority available
y/n (create appropriate object)
Switching authority available DIGSI
y/n (create appropriate object)
Specific device (e.g. switching device)
Switching authority LOCAL (check for Local status): y/n
Specific device (e.g. switching device)
Switching authority REMOTE (check for LOCAL, REMOTE, or
DIGSI commands: y/n
Current Switching
Authority Status
Switching
Authority
DIGSI
Command Issued with
=LOCAL
Command Issued from
SC=LOCAL or REMOTE
Command issued from
SC=DIGSI
LOCAL
not
registered
Allowed
Interlocked
- "switching
authority LOCAL"
Interlocked "DIGSI not
registered"
LOCAL
Checked
Allowed
Interlocked
- "switching
authority LOCAL"
- "switching
authority LOCAL"
REMOTE
Not checked
Interlocked
- "switching
authority REMOTE"
Allowed
Interlocked "DIGSI not
registered"
REMOTE
Checked
Interlocked
- "switching
authority DIGSI"
Interlocked
- "switching
authority DIGSI"
Allowed
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