Siemens Sinamics s120 Commissioning Manual page 347

Properties
● Two independent traces per Control Unit
● Up to 8 recording channels for each trace
When more than 4 channels per single trace are used, the trace's device clock cycle is
switched automatically from 0.125 ms (0.250 ms for vector control) to 4 ms. As a
consequence, the performance of the SINAMICS S120 is not influenced too strongly by
the trace function.
● Single trace:
Device clock cycles of the SINAMICS S120 trace
Up to 4 channels: 0.125 ms (servo control)/0.250 ms (vector control)
≥ 5 channels: 4 ms (servo control/vector control)
The specified trace cycles can be increased.
● Endless trace:
The parameter data is written to the memory until it is full. Additional parameter data is
then lost.
A ring buffer can be selected in order to avoid this. When the ring buffer is activated, then
the STARTER commissioning tool automatically starts again from the beginning to write
to the trace memory after the last trace parameter was saved.
Device cycle of the SINAMICS S120 trace for an endless trace:
– Up to 4 channels: 2 ms (servo control/vector control)
– ≥ 5 channels: 4 ms (servo control/vector control)
● Triggering
– Without triggering (recording immediately after start)
– Triggering on signal with edge or on level
● STARTER commissioning tool
– Automatic or adjustable scaling of display axes
– Signal measurement via cursor
● Adjustable trace cycle: Integer multiples of the basic sampling time
STARTER Commissioning Manual
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5
The specified trace cycles can be increased.
If the 4 ms time slice is not available, then the next higher time slice is selected.
Diagnostics
4.2 Diagnostics via STARTER
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