Mounting and Commissioning
3.3 Commissioning
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
543
Figure 3-26
Communication topology – Limited representation
The „Additional Information“ button extends the representation by the following information:
The timing master is indicated by a clock icon in the communication topology display.
In the event of an incorrect parameterisation or faulty wiring, the indications „Communication topology not com-
plete“ (topol complete OFF), „Communication topology invalid“ and „Protection topology invalid“ (neither ring
topology ON nor chain topology ON) are displayed in a red bar.
The display of the circuit breaker positions is integrated into the topology display. Closed circuit breakers are
displayed in green, opened circuit breakers are displayed in red and circuit breakers in an undefined state are
displayed in grey.
An LED is used to select whether the communication topology or the protection topology is to be displayed for
the participating device. The display of the connections changes correspondingly.
To get an overview of the quality of the individual communication paths, a connection status is displayed for
each connection. The statuses can be „OK“, „asynchronous connection“ and „unknown status“ annehmen.
The status is displayed directly in the communication path display, i.e. in the display of the arrows symbolising
the connection. The colour of the connection indicates its status, a legend at the lower screen edge explains
its colour coding. If a connection fails completely, the connection is no longer displayed.
Table 3-23
Connection status
In Figure 3-27, the adjacent channel of a ring topology is designated as additional information. This is done by
the thinner connection arrows.
Status
Colour of the
connection display
Remark
OK
green
The connection is OK.
failed
is not displayed
asynchronous
red
The connection cannot be used for protective functions.
unknown
grey
