Siemens SIPROTEC 5 Manual page 256

Fault Recorder
7.2 Function-Group Type Recorder
[dwtriwei-140213-01.tif, 1, en_US]
Figure 7-37
a Trigger rising edge: Start of the recording of the pre-trigger time and the retrigger blocking time
b Trigger falling edge: Start of the post-trigger time
c End of the retrigger blocking time
d End of recording
t Time line
When a trigger event occurs, the start trigger (a) trips a fault record.
The trigger event does not extend the recording due to the retrigger blocking time.
Trigger with Ineffective Retrigger Blocking Time
[dwtrig05-140213-02.tif, 1, en_US]
Figure 7-38
256
Other Triggers During the Retrigger Blocking Time
Trigger with Pre-Trigger Time, Post-Trigger Time, Maximum Record Time, and Ineffective
Retrigger Blocking Time
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017