Allen-Bradley 1756-L63XT, Руководство пользователя

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172 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 11 Using the PhaseManager Tool
With a state model, you define the behavior of your equipment during Acting
states.
How Equipment Changes States
The arrows of the state model 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 behavior of the equipment so that other
equipment using the same model behaves the same way.
Figure 45 - PhaseManager Transition Commands
Table 42 - Acting States in the PhaseManager State Model
State Question to Ask
Resetting How does the equipment get ready to run?
Running What does the equipment do to make product?
Holding How does the equipment temporarily stop making product without making scrap?
Restarting How does the equipment resume production after holding?
Stopping What happens during a normal shutdown?
Aborting How does the equipment shut down if a fault or failure occurs?
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.
Your equipment can go from any state in the box
when it receives a stop or abort commend.