2 Functions
368
7SA522 Manual
C53000-G1176-C155-3
2.22.3 Process Data
During the processing of commands, independently of the further annunciation alloca-
tion and processing, command and process feedbacks are sent to the annunciation
processing. These messages contain information on the cause. With the correspond-
ing allocation (configuration) these messages are entered in the event log, thus
serving as a report.
A listing of possible operating messages and their meaning as well as the command
types needed for tripping and closing the switchgear or for raising and lowering of
transformer taps and detailed information are described in the SIPROTEC
®
4 System
Description.
2.22.3.1 Method of Operation
Acknowledgement
of Commands to
the Device Front
All messages with the source of command LOCAL are transformed into a correspond-
ing response and shown in the display of the device.
Acknowledgement
of Commands to
Local/Remote/Digsi
The acknowledgement of messages which relate to commands with the origin "Com-
mand Issued = Local/ Remote/DIGSI" are sent back to the initiating point independent
of the routing (configuration on the serial digital interface).
The acknowledgement of commands is therefore not executed by a response indica-
tion as it is done with the local command but by ordinary command and feedback in-
formation recording.
Feedback
Monitoring
Command processing time-monitors all commands with feedback. Parallel to the
command a monitoring time period (command runtime monitoring) is started which
checks whether the switchgear has achieved the desired final state within this period.
The monitoring time is stopped as soon as the feedback information arrives. If no feed-
back information arrives, a response ´7LPH/LPLW([SLUHGµ appears and the
process is terminated.
Commands and their feedbacks are also recorded as operational annunciations. Nor-
mally the execution of a command is terminated as soon as the feedback information
(FB+) of the relevant switchgear arrives or, in case of commands without process
feedback information, the command output resets.
In the feedback the plus sign means that a command has been positively completed.
The command has been positively completed, as expected. Accordingly the minus
sign means a negative, unexpected, result.
Command Out-
put/Relay
Triggering
The command types needed for tripping and closing of the switchgear or for raising
and lowering of transformer taps have been determined during configuration, see also
SIPROTEC
®
4 System Description, order no. E50417-H1176-C151.
- Fan ON/OFF CF_D2 Fan ON/OFF
- Fan ON/OFF DP Fan ON/OFF
- UnlockDT IntSP Unlock data transmission via BI
No. Information Type of In-
formation
Comments
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