The request
“Create an SFC for conveyor startup: stopped initially, safety check after StartButton, start the drive when GuardClosed and DriveReady, run after DriveStarted, and return to stopped on StopButton.”
Then tryAdd an emergency-stop transition back to stopped.Add a five-second start delay before running.
What is in this drawing
Read the decisions behind it.
01Initial state
The conveyor begins stopped.
02Transition guard
Guards and drive readiness must both be true.
03Stop path
A stop button returns the chart to the initial state.
Use for a basic startup narrative, with site safety logic implemented and reviewed separately.
More like this
Other examples in this family.
FAQ
Common questions
What does the initial step mean?
It is the step active when the chart starts or returns to its reset state.
What is a transition condition?
It is the boolean condition required to move from one step to the next.
Can safety logic be shown?
Yes, conditions such as guard status can be used on transitions.