Spectra calculated for the extraction of indicators can neither be viewed nor stored by
MVX.
3.4 Operating in “Predictive Maintenance” mode
When MVX is set up to perform predictive maintenance tasks, it performs the
required acquisition(s) as soon as the fixed period or date has expired.
In this case, all signals (spectra and/or time signals) and indicators described in the
configuration are stored by MVX in order to be integrated into the predictive
maintenance database, either at once, or later on.
Between two scheduled operations, MVX can permanently calculate scalar indicators
described in the settings and compare them to alarm thresholds, like in the
monitoring mode.
In case of status change (threshold VIOlation), all measurements (spectra and/or
time signals) and indicators described in the parameter settings are stored by MVX to
be later integrated to the predictive maintenance database.
Short-term memory:
Furthermore, and for each calculated parameter, MVX will store in a FIFO buffer the
short-term history of scalar values.
The size of this FIFO buffer can be set up to 1000 values per indicators.
The periodicity for storage in the short term memory can also be programmed and
can range from a few seconds (i.e., MVX stores all calculated values) to 600 s.
By storing 1000 values with a periodicity of 600s, the capacity of this short-term
memory can thus reach 600 000s, i.e., about 1 week.
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