7 Calculations | 109
1. If this is the first calculated signal to be defined, you can directly start with
step 2. If you have already defined a calculated signal, click .
By default, the name of the new calculated signal is set to "Cal-
culatedSignal". If this name is already in use, it is extended by an increasing
number.
2. In the Name field, you can enter another name instead of the default name.
Note
Valid characters are a-z, A-Z, 0-9, underscore, point, and square brack-
ets. Square brackets must always occur in pairs. Other characters or
blank space are not allowed.
3. Optionally, you can enter a unit in the Unit field.
4. Drag and drop one or more input signals into the Formula Definition field.
Note that enumeration signals can be used as input signals only in com-
bination with the following functions:
l
Raw() function for mathematical calculations using the decimal imple-
mentation value
l
ToString() function for comparing the strings of different enu-
meration signals.
For each input signal, the file identifier and the short name of the signal are
displayed. If several signals with the same short name exist, information
about the device and/or the raster is additionally displayed to distinguish
the signals.
If an input signal contains an error or warning, a corresponding icon is dis-
played in front of the file identifier. Note that you can save a calculated sig-
nal even if an input signal contains an error.
5. Connect the signals with mathematical operators.
You can drag a mathematical operator from the Toolbox field into the For-
mula Definition field. The Help field displays additional information about
the meaning and usage of the operator.
Tip: To quickly navigate through the formula, use the keyboard buttons.
6. Open the Output Options and define the following parameters:
i. Rate: Define the rate in which a new sample of the calculated signal
shall be created.
l
Combined Raster (Merge Raster) (by default): For every new
sample of any input signal, a new sample for the calculated signal is
created. This means, different input signal time rasters are merged.
l
Fixed: The calculation of a new sample is done in a periodic raster
independently from the rasters of the input signals.
MDA V8 | User Guide
To Next Page
Loading...
