Creating a Sequential Function Chart > Creating the SFC module

Create a transition in the SFC

  1. On the All SFC Items palette, click Transition, and then drag it to a point below the STOP_AND_WAIT box.

    A plus sign named T1 appears.

  2. Right-click the transition and select Properties (or double-click the transition).

    The Properties dialog appears.

  3. Enter Wait until Start for the transition description, open the Expression Assistant, and then build the following condition statement:

    'SP' = 'SFCCTRL:START'

  4. Click Parse in the Expression Assistant, correct any errors, and then click OK in both dialogs.
  5. Rename the transition WAIT_UNTIL_START.