This article describes the driver "Signal Processing" of the ToolScope.

The "Signal processing" signal filter performs a range of standard tasks, which are required for the use of a typical measuring signal.

The input signal is filtered for peaks and smoothed with a low-pass of the first order. An offset correction is then performed, by adding a predefined value to the values of the smoothed signal. The result is multiplied with a predefined amplification factor. The end result is provided by the filter as a virtual signal.


The "Signal processing" signal filter is only visible if the internal "ShowDriver­Signal processing0" setting is set to "true".

Function name


Remove signal peaks beforehand – acceptable delay [s]

Enables removal of peaks before further processing is carried out. Peak filtering is carried out through the formation of a median over the specified period of time (default: 30 ms). The procedure can eliminate signal peaks effectively. But it also causes a signal delay.

3-dB limit frequency [Hz]

Limit frequency of a low-pass filter in Hz.

Offset compensation (additive)

Value to be added to the signal (offset)

Amplification (multiplicative)

Value with which the signal is to be multiplied (amplification)


Input signal for the driver

Output: Machine

Name of the signal in the "Machine" column

Output: Axis

Name of the signal in the "Axis" column

Output: Signal

Name of the signal in the "Signal" column

Output: Unit

Unit of the signal