Designing and Managing Behavior Models - Using Alarms - Defining Transitions - Defining a Transition -
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Defining a Transition

When you add a transition to a state diagram, you must supply three pieces of information: an origin state, a trigger name, and a destination state. Both of the states must already have been created in the state diagram, and the trigger must already exist as well.

 
  To create a new transition:

1. Select the Add Transition button at the top of the Alarm Definition window.

   The Transition Definition dialog is displayed.

   Transition Definition Dialog

   

2. Select an origin state from the From drop-down list.

   This list contains the names of all the states currently defined in the state diagram, including Ground. If an alarm is in the origin state when the appropriate trigger arrives, it may transition to the destination state.

3. Select a trigger from the Trigger drop-down list.

   This list contains the names of all the triggers defined in the NerveCenter database. Only a trigger with the name you specify here will be able to cause this transition.

4. Select a destination state from the To drop-down list.
5. Select the OK button.

A transition is drawn between the source and destination states. This transition consists of a line connecting the source and destination states with arrows pointing in the direction of the destination state, and a rectangular icon on the line labeled with the trigger name. You can drag the rectangular icon, and the line will move with it.