# SIM: Events Pane

The events pane contains six tabs. The first two tabs contain static information. The next three contain information related to events when in Running View and the last tab is used when in History View.

The first tab displays the event set or sequence (depending on what you have chosen in the wizard). If you are using an event set, all the events in the set are displayed. If you are simulating an event sequence, each event is displayed in order of the sequence you have chosen. Two columns display the name and alias of each event, the second last column indicates each event's controllable property and the last column indicated the type of event. The event types are displayed in shorthand to save space. High-Level and Low-Level events are represented by the letters 'h' and 'l' respectively. Request, Answer and low data events are represented by 'r', 'a' and 'ld' respectively.

The second tab displays your chosen start state. This tab lists all the DES in your simulation, the state at which they start the simulation, and whether that state is Initial or Marked. The DES are displayed in a hierarchical form for easy reference.

### Running View

When Running View is enabled, the next three tabs are available and display information. To enable Running View, open the View menu and select Running View. The first of the three tabs displays a list of Eligible Events. These are the events that can take place given the state of the simulation. If you click on one of the eligible events, you can see the result of that event happening by looking in the Next State Tuple tab of the States Pane. Note that if you click on an event in the eligible tab, then click on the Step Forward button, then this transition will be simulated. Clicking on Step Forward with no event selected will cause a random eligible event to be simulated.

The next tab displays all the remaining events or the Ineligible Events. Clicking on an event in the ineligible tab will cause all DES in the "Current State Tuple" tab that are blocking the event, to be highlighted in Red.

The last tab is the Dashboard. This tab gives you more options for the simulation. It displays the current task status as well as simulation status. The Slow Mode option is the time delay used when running a simulation. Set it longer or shorter to give you more or less time to watch the simulation taking place. The Stop Condition can also be changed in this tab. The Frequency to show DES names is the amount of steps that will occur before the DES names will be displayed in the Trace. The Frequency to flush trace to disk is the amounts of steps that will occur before the trace is cleared and the trace is written to disk. For more information on the Trace please visit the States Pane page. The Trace Viewer Tool is the external program used when opening the Trace Viewer.

### History View

When History View is enabled, the History tab becomes available and the eligibility of events tabs as well as the dashboard are disabled.

To enable History View, open the View menu and select History View. The History tab shows the events that have taken place from the start of the simulation in sequential order. It shows each event's name & alias and the controllable and event type properties. At the top of the pane, the total step count is shown. This is the number of events that have occurred since the simulation started (without backtracking). It also displays the total time elapsed in milliseconds. When you are in History View, you cannot simulate events, but you can go back to a particular step in time and follow the events and the DES as they change states. Clicking on an event in the History tab causes the "Current State Tuple" and "Next State Tuple" tab to update to show the state the project is at before the event occurs, and the state reached when the event occurs, respectively. Please Note: History View is unavailable when the History Mode is disabled.

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