The App Designer in detail > Editing User interface files
The Signal/Slot Editor view
Through the Signal/Slot Editor view, you can make signal/slot connections between widgets on the form, without having to type python code.
To do this:
Procedure
Press the + button to add a new signal/slot item.
Double-click on the sender field to select the widget that sends the signal (showing the objectName properties of all widgets).
Double-click on the signal field to select the signal you want to connect, from the list of sender signals.
Double-click on the receiver field to select the widget which receives the signal (showing the objectName properties of all widgets).
Finally, double-click on the slot field to select the signal you want to connect, from the list of receiver slots:
Note
The custom signals and slots on Amesim widgets are not available in the signal/slots combo-boxes
Connections using them still have to be made in python code
Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.App_Designer/xid1018178 · retrieved 2026-07-17