Siemens SIPROTEC 7UM62 User Manual

Functions
2.50 Command Processing
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
356
Enabling Logic via CFC
For bay interlocking, an enable logic can be created using CFC. Via specific release conditions the information
„released“ or „bay interlocked“ are available, e.g. object „52 Close“ and „52 Open“ with the data values: ON /
OFF).
Switching Authority
The interlocking condition "Switching Authority" serves to determine the switching authorization. It enables the
user to select the authorized switching source. The following switching authority zones are defined in consec-
utive priority sequence:
•LOCAL
•DIGSI
•REMOTE
The DIGSI object "Switching authority" serves to interlock or enable LOCAL control, but not remote or DIGSI
commands. For the 7UM621 and 7UM622 the switching authority can be changed between "REMOTE" and
"LOCAL" in the operator panel by password or by means of CFC also via binary input and function key. For the
7UM623 the switching authority can be changed by means of the keyswitch.
The object "Switching authority DIGSI" is used for interlocking and enabling of 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 2-22 Interlocking logic
1)
also "Enabled" for: ”Switching authority LOCAL (check for Local status): n"
2)
also "Enabled" for: ”Switching authority REMOTE (check for LOCAL, REMOTE, or DIGSI status): n"
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 sta-
tus): y/n
Specific Device (e.g. switching device) Switching authority REMOTE (check for LOCAL,
REMOTE, or DIGSI status): y/n
Current switching
authority status
Switching authority DIGSI Command with
SC
3)
= DIGSI
Command issued from
SC=LOCAL or REMOTE
Command issued
from SC=DIGSI
LOCAL Not logged on Enabled Interlocked
2)
"interlocked
because of LOCAL control"
Interlocked "DIGSI
not registered"
LOCAL Logged on Enabled Interlocked
2)
"interlocked
because of LOCAL control"
Interlocked
2)
"inter-
locked because of
LOCAL control"
REMOTE Not logged on Interlocked
1)
"inter-
locked because of
REMOTE control"
Enabled Interlocked "DIGSI
not registered"
REMOTE Logged on Interlocked
1)
"inter-
locked because of
DIGSI control"
Interlocked
2)
"interlocked
because of DIGSI control"
Enabled

Siemens SIPROTEC 7UM62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7UM62
Category	Protection Device
Language	English