Rockwell Automation 1784-PM16SE SoftLogix Motion Card Setup and Configuration Manual - Manual (Page 42)

Publication 1784-UM003A-EN-P – June 2003
34 SoftLogix Controller
Execution Control
This determines the execution model for the SFC. Your options are:
• Execute current active steps only – Execution control is returned to
the controller after processing the active steps, even if the Transitions
following the active steps are True.
• Execute until False transition – The controller continually processes
Steps and Transitions, in a single scan, until a False Transition is found.
It then returns to the Controller operating system.
Restart Position
Your selection here indicates at what point the SFC starts after it has
completed executing and been restarted.
• Restart at most recently executed step – Restarts at the step where it
left off.
• Restart at initial step – The SFC re-initializes and starts at the Initial
Step.
Last Scan of Active Steps
This determines how the controller performs a final scan of Action logic when
the associated Step is deactivated.
• Automatic reset – All non-retentive timers and outputs associated with
the Step’s non-stored Actions are reset when the step is deactivated.
• Programmatic reset – All non-retentive timers and outputs associated
with the Step’s non-stored Actions must be reset manually.
• Don’t scan – No scan is done on the Action logic when the associated
Step is deactivated.