Managing Calculated Signals - ETAS MDA V8.6 User Manual

ETAS
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ition field.
4.2

Managing Calculated Signals

For a general overview of the window, see "Calculated Signals" on page 57.
You can perform the following actions:
MDA V8.6 – User Guide
i. Rate: Define the rate in which a new sample of the calculated
signal shall be created.
Combined Raster (Merge Raster) (by default): For every
new sample of any input signal, a new sample for the cal-
culated signal is created. This means, different input signal
time rasters are merged.
Fixed: The calculation of a new sample is done in a periodic
raster independently from the rasters of the input signals.
Same as Signal: The calculated signal has the same
timestamps as the selected input signal. You can only
select available input signals. Thus, for example, if the
selected input signal has been removed from the con-
figuration, an error message is displayed.
ii. Type: Select the data type of the calculated signal. A time off-
set is applied to the result of calculation only. It can be a neg-
ative or positive value with up to 6 decimals. A time offset
allows to shift individual signals and thus synchronizes their
time line with other signals from the same measure file.
Automatic (by default): The program tries to detect
whether the result is a logical (Boolean) signal or not.
Boolean
Double
iii. Time Offset for the calculated signal.
7. Click Save.
If the calculation is not valid, you cannot save the calculated sig-
nal. An error message is displayed and the exact location of the
error is highlighted. After saving, the new calculated signal is avail-
able in the Variable Explorer and in the calculated signal list.
8. To use the calculated signal, drag and drop it onto an instrument.
For calculated signals, a square root symbol is shown as file iden-
tifier.
4 Calculated Signals
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