Setup signal calculation


This function combines two analog channels or two digital channels by a standard math function. It therefore needs two input signals to be selected. When starting directly from the channel dialog at least one channel is already selected when showing the setup screen.

Source Signals The list shows the two selected channels for the calculation. The function needs two channels to be selected to run. Please select the channels by double clicking on the channel name.
The digital calculation allows you to use inverted channels as input. Those channels are marked by a "¬", e.g. ¬DI-Ch00. The inversion takes place just before the actual operation (see below), therefore no additional signal is stored.
Destination Channel Defines a name under which the resulting calculation signal should be accessed and shown inside SBench 6.
Destination File Store to cache tries to use the internal cache to speed up write process. If there is not enough free space in the cache the data is stored to a temporary file.
Store always to file stores data automatically under this file name on each calculation run. If Autostore is checked the result of the calculation is stored to a new file each time the calculation runs.
Operation Select the desired math calculation that should be used for the combination of the two source signals.
For analog signals it is possible to Add, Substract, Divide or Multiply the two channels.
For digital signals AND, OR, XOR, NAND, NOR, XNOR are available. If you want to invert a single channel use NAND or NOR with the same signal for both source channels.
Calculation Area Select the part of the signal that should be used for calculation of this figure:

Complete takes all samples of the signal from the first to the last acquired sample. The calculation result is updated when doing a new acquisition.

Current view runs the calculation across all samples of the signal that are currently visible in the display window. If the signal is moved inside the display or the zoom factor is changed the result will be re-calculated.

Cursor only uses samples that are between cursor B and cursor A in the current display window. The result is updated as soon as the cursors are moved.

Source Display defines the display whose cursor/visible area will be used. This is only available if Calculation Area is set to either Current View or Cursor.
Keep in loop If this option is checked the calculation is automatically updated if the source signal has changed or the calculation area changes. If it is not checked the result is one time calculated and stays fixed afterwards.
Add to displays If this option is checked the newly generated signal is automatically added to a matching analog display or digital display. If no display is yet available a new display is automatically added showing this plot.

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SBench 6 Documentation