How equipment changes states – Rockwell Automation 1794-L34 FlexLogix Controller System User Manual User Manual
Page 92
Publication 1794-UM001G-EN-P - January 2007
92 Configure PhaseManager
With a state model, you define the behavior of your equipment and
put it into a brief functional specification. In this way you show what
happens and when it happens.
How equipment changes states
The arrows in the state model show to which states your equipment
can go from the state it is in now.
• Each arrow is called a transition.
• A state model lets the equipment make only certain transitions.
This gives the equipment the same behavior as any other
equipment that uses the same model.
For this State:
Ask:
Stopped
What happens when you turn on power?
Resetting
How does the equipment get ready to run?
Idle
How do you tell that the equipment is ready to run?
Running
What does the equipment do to make product?
Holding
How does the equipment temporarily stop making product without
making scrap?
Held
How do you tell if the equipment is safely holding?
Restarting
How does the equipment resume production after holding?
Complete
How do you tell when the equipment is done with what it had to do?
Stopping
What happens during an normal shutdown?
Aborting
How does the equipment shutdown if a fault or failure happens?
Aborted
How do you tell if the equipment is safely shutdown?