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How equipment changes states – Rockwell Automation 1794-L34 FlexLogix Controller System User Manual User Manual

Page 92

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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?