How to Control Junctions in Sessions

The screenshots shown below give examples of how junction settings can be used to control the operation of a session.

Asking the User to Set Junctions

1. The Scenario:

A consist has been halted at a trigger placed in front of a junction. The user will be asked to set that junction and the following junction before the consist can proceed.

2. Rules Used:

• Wait_on_Navigation_Point to trigger the event.
• Message Popup Rule to open a message window on the screen.
• Multiple Junction Alignment Check Rule to test if specified junctions are set correctly.

3. Session Rules Screenshot:

File:TestJunctions.jpg

4. Example Explanation:

• Line 1: Wait on Navigation Point The event is triggered when the consist halts at the navigation point assigned to the trigger. This executes the following rules simulaneously
  • Line 2: Message Popup Displays a message window asking that the next two junctions be manually set.
  • Line 3: Multiple Junction Alignment Check tests the switch directions of the next two junctions and waits until they are aligned as specified.

File:JunctionSettings.jpg

Checking junction switch settings

The following line is executed only if the junctions are set correctly

• • • Line 4: Message Popup Displays a message window sating that ht junctions are now correctly set.