Add a Step to a Sequential Function Chart
Steps represent states that the program is to monitor. For example, a step could represent a check for value of a specific point. For more information, see Steps.
A step is only performed if it is active. It becomes active when the condition for the transition that connects it to the previous step is true. The initial step does not have a transition to a previous step—it is performed whenever the system executes the Sequential Function Chart.
A step becomes inactive when the condition for the transition that connects the step to the next step is true.
To add a step to an SFC:
- Display the SFC in Design mode (see Display a Sequential Function Chart).
- Right-click on the background of the SFC.
A context sensitive menu is displayed. - Select the Add Step option.
A new step is added to the SFC.