User manual

Publication 1768-UM001C-EN-P - November 2007
108 Configure PhaseManager
How Equipment Changes States
The state model’s arrows show the states through which your equipment
progresses.
• Each arrow is called a transition.
• A state model lets the equipment make only certain transitions. This
restriction standardizes the equipment’s behavior so that other
equipment using the same model will behave the same way.
PhaseManager State Model
Holding
Hold
Idle
Start
Running
Hold
Held
Restarting
Restart
Stop
Stopping
Abort
Aborting
Stopped Aborted
Abort
Resetting
Complete
Reset
Reset
= Transition
Command Done — No command. Use PSC instruction instead.
Fault (specific use of the abort
command)
Your equipment can go from any state in
the box to the stopping or aborting state.
PhaseManager Transition Commands
Type of Transition Description
Command A command tells the equipment to do something. For example,
the operator pushes the start button to start production and the
stop button to halt production.
PhaseManager uses these commands:
Reset Stop Restart
Start Hold Abort
Done Equipment goes to a waiting state when it is finished with what it
is doing. You do not give the equipment a command. Instead, you
set up your code to signal when the equipment is finished.
Fault A fault tells you that something out of the ordinary has happened.
You set up your code to look for faults and take action if it finds
any. If you want to shut down your equipment as quickly as
possible when it detects a fault, set up your code to look for that
fault and give the abort command if it finds it.