Signal Selection

In the Variable Explorer, you can see the contents available in the measure files. Before a recording in INCA is done, variables are selected in a defined raster. By definition, a variable becomes a signal if a raster is assigned and latest if measure data is available. Thus in the context of MDA, only signals are available.

In a configuration, each signal is uniquely identified by its signal name in combination with multiple meta information. According to ASAM MDF V4 standard these are the ECU, the device, the recording raster, the ECU raster, and the device raster. In addition, MDA also uses the path and the name of the measure file.

The device information can be set by the user in INCA’s Hardware Configuration (HWC) and is visible in several places in the Experiment Environment. The ECU information is taken from the A2L file. It is not visible in INCA but is added to the MDF V4 file as meta information for the signal. MDF V3.x files do not support ECU information and only one type of raster information. When loading an MDF V3 file or another file format that does not support all of the mentioned meta information, MDA will use the string “NULL” for the missing information. This allows to handle the missing meta information gracefully when replacing measure files.

See also