< All Topics Main Experior Basic Interface Window Inputs and Outputs Inputs and Outputs PostedNovember 4, 2021 UpdatedNovember 4, 2021 ByKasper Vestrup Located at the bottom of the screen, two panes display the PLC symbols and information that have been assigned to the various items and controls within the model.Clicking on a line in either panel will display the properties for that symbol.