Burst Data Logging; Data Recorder Burst Data - Siemens 9810 Series User Manual

Burst data logging

Data recorder burst data

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6. Use the bar at the bottom to zoom in / zoom out on a particular section of the
waveform, or to scan through the waveform with the selected zoom level.
– Draw a window over a particular area to zoom in on that section of the
waveform.
– Drag the selected area to move the zoom across the waveform.
– Drag the start and end points to expand or narrow the zoom.
7. Hover over or tap a spot on the waveform to view the values associated with
that particular moment in time.
Related Topics
• COMTRADE implementation overview
Burst data logging is a recording method that captures a snapshot of data that
occurred immediately before and immediately after a triggered recording.
Burst data logging is analogous to continuous shooting mode or "burst mode" in
photography. An understanding of pre and post event data assists in the analysis
of undesired power quality events such as sags or swells.
Burst logging is typically used for high-speed RMS (half-cycle) data capture, but
the data recorder supports standard speed (1-second) recording as well,
depending on the ION modules connected to the inputs of the Data Recorder
module.
NOTE: To maximize the performance of your power management system, it is
recommended that devices be connected directly to an Ethernet network.
The meter's Data Recorder modules support burst data logging.
The Data Recorder module's Pre-trigger Records setup register specifies how
many pre-event records are saved with each triggered recording. The Post-trigger
Records setup register specifies how many post-event records are saved with
each triggered recording.
Both Pre-trigger Records and Post-trigger Records are set to zero by default. To
configure the data recorder for burst data logging, either or both of these setup
registers must be set to a non-zero positive integer value.
The data log set for each triggered recording is equal to the sum of Pre-trigger
Records + Post-trigger Records + 1 (where 1 is the actual record when the Data
Recorder module's Record input was triggered).
For example, if Pre-trigger Records is set to 10 and Post-trigger Records is set to
5, the number of records for each data log set would be 16:
Power quality
7EN05-0390-00