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Bear in mind that a time signal may NOT have been recorded
when an alarm was output for a characteristic value even if the field
"Save in the event of main alarm" was activated. Time signals that
should be saved in the event of an alarm can only be saved if
sufficient memory is available.
The recorded time signals are always acceleration signals, which are each
filtered and sampled differently. The Detector can measure three different time
signals. Here you can choose from three different measuring branches .
For the calculation of the characteristic velocity values ISO10816 and V
sel
the
transformation from the acceleration signal into the velocity signal is done in the
frequency domain. Therefore, for these characteristic values the acceleration
signal is always stored and displayed for the time signal. The time signal
sampling rates are set for each channel by the lowpass settings.
7.4 Dynamic memory management
The Detector offers dynamic memory management. Because of this, the
partitioning of the memory is not defined in the firmware. For measuring points,
time signals, etc. there is a memory block of 2.7 MB. You can set in the Trendline
software whether many configurations or many time signals are needed when
taking the next measurements. The required memory can be calculated as
follows:
CM configuration: 572 bytes
Balancing configuration: 394 bytes
Run up/coast down: 272 bytes
Amplitude/phase configuration: 290 bytes
CM measurement: 588 bytes
Balancing measurement: 408 bytes
Run up/coast down: 286 bytes
Amplitude/phase measurement: 304 bytes
CM configuration: 588 bytes
Balancing configuration: 410 bytes
Run up/coast down: 288 bytes
Amplitude/phase configuration: 306 bytes
8244 bytes (1600 lines), 16436 bytes (3200 lines)
94 bytes + (n * 12) bytes per Amplitude/phase value
(n = number of reference points)
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