The browser An alternative view of a GoldSim model, in which elements are displayed in a tree, and organized either hierarchically, or by type. view of a Previous Value element An element that outputs the value of its input from the previous model update. is shown below:
As can be seen, the browser view shows the two inputs (Reference and Initial Value) and the two outputs (the previous value itself, which has the same name as the element, and the RateOfChange).
Note: Element inputs and outputs are only shown in the browser if you choose to Show element subitems (accessed via the browser context menu by right-clicking in the browser).