Use an Explicit Device Events node () to create solver events at certain predefined start times and periods. Each solver event can reinitialize variables to a new value as long as the variable is a degree of freedom or discrete state. To ensure that an ordinary device variable is a degree of freedom, use an Elimination Weight of −1. See the Device Variables node for more details.

Enter a scalar start time in the Start time column and a scalar period in the Period column. The period time accepts inf to only trigger an event once. The Re-init variables and Re-init expressions columns contain an array of variables names and their corresponding reinitialization expressions. It is an array to support reinitialization of multiple variables. For example, {a, b} and {a+1,b*2} to add one to a and multiply b with 2 for each triggered event.