Edit a Transition

When you add a transition to a Sequential Function Chart (SFC), you need to edit it so that it has a condition. The next step on the SFC will only become active if the transition's condition is true.

The condition that you enter should be similar to the conditions for IF statements in ST. For example, if the condition is only to be true when a variable named Level has a value greater than 10, the condition would be:

Level>10

To edit a transition:

1. On the Sequential Function Chart, right-click on the transition that you want to configure.
   A context sensitive menu is displayed.
2. Select the Edit option to display the Edit Transition window.
3. Enter a new condition for the transition. The condition should be an ST expression of the type that would be entered in an IF statement. For example, PumpValue:=10 would mean the transition is true if the variable named PumpValue has a value of 10.
4. Select the OK button to confirm the entry and close the Edit Transition window.
   

Further Information

Transitions.

IF - THEN - ELSE.