Calculations

Calculations are helpful in displaying and analyzing measure data. MDA supports two types of calculations:

• Functions: use of predefined calculations based on Functional Mock-up Units (FMUs, for example created with ASCMO)

  Some FMUs require that the input signals provide a value at exactly time stamp 0, which is typically not the case for usual measurement files with recordings in different acquisition rates. MDA handles the input signals in a special manner to enable the usage of such FMU models:

  Basically, all input signals are shifted as one group so that for at least one input signal a value can be given at time stamp = 0. The outputs of the FMU model are shifted in the opposite direction and are then displayed in MDA.

  There is a warning icon shown for all FMU output signals to indicate whether there was such a time shift operation applied in the background.

   

• Calculated Signals: use of mathematical operators for defining individual formulas

After creating a calculation, the calculation results are displayed in the Variable Explorer. They can be selected and used like other measure signals.