Defining a Conversion Formula for the Sensor Signal

To define the formula for converting a sensor signal to a physical value:

1. Mark a device in the Hardware devices list.
2. Select the Channels tab.

3. Double-click the field in the Formula column and in the line containing the channel where the sensor signal arrives.

   The Edit formula: channel dialog box opens.

4. Select a conversion formula in the Type field:

   • Identity if you do not want any conversion of the signal value. The input value and the displayed value remain identical.
   • Interpolating table if you want to define fixed values for the physical values and the signal values. The values are displayed in a table to which you can add further lines via the context menu. The interim signal values are interpolated during conversion, resulting in a continuous graphic display of the values.
   • Linear if you want to calculate the signal values with a linear equation.
   • Moebius if you want to calculate the signal values with a fractional equation.
   • Non-interpolating table if you want to define fixed values for the physical values and the signal values. The values are displayed in a table to which you can add further lines via the context menu. The interim signal values are assigned the lower physical value during conversion, resulting in a stepped graphic display of the values.
5. Enter the unit of the signal value in the Unit field.
6. You can optionally enter a brief explanation of the conversion in the Comment field.

7. Click OK.

   The conversion formula is accepted.