Calculated Signals

Calculated signals Virtual signal resulting from the mathematical and/or logical combination of one or more input signals and/or constants. can be defined more flexibly, for example, to generate a different signal or a direct comparison with specific measured values. After you defined a calculated signal, it can be selected like any other measure signal in the Variable Explorer and assigned to an instrument Widget used for visualizing or editing data (e.g. oscilloscope or table).. The inputs to calculated signals are always step interpolated, i.e. the last available value will be taken for calculation until there is a new value available.

The calculated signals editor is divided into the following areas:

No.	Description
	List of all calculated signals As soon as you have created a calculated signal, it is displayed in this area. From here, you can perform the following actions: To use a calculated signal, drag and drop it into an instrument of your configuration. Select a calculated signal in the list to edit, duplicate, or delete it. For more information, see Managing Calculated Signals.
	Entry fields to define or edit a calculated signal To define a calculated signal, drag and drop any input signal from the Variable Explorer or an instrument or an existing calculated signal into the formula definition field. To complete the formula, enter mathematical operators via the keyboard. For more information, see Defining Calculated Signals.
	List of all mathematical operators When defining a calculated signal, you can select a mathematical operator in this list and move it into the formula definition field on the right side of the editor. Alternatively, you can type the desired operation name or symbol directly into the formula definition field.
	More information about the mathematical operators When you select a mathematical operator in the list above, this field displays additional information about the meaning and usage of the operator. The same detailed information is shown in the Formula Definition field, when hovering in edit mode onto the function name.

Note
Calculated signals imported from MDA V7 may behave slightly differently in MDA V8. For more information, see Import Calculated Signals from XDA Files: Differences between MDA V7 and MDA V8.