Sequence Execution & Monitoring

Sequence execution is responsible for coordinating:
  • The execution of phases in the order specified by the sequence diagram.
  • The transition expressions to specify when steps are attached to phases, started, stopped, reset, and attached.
  • The step activation to trigger passing
    Equipment Sequence
     input data to the
    Equipment Phase
    .
  • The COMPLETE, STOPPED, or ABORTED triggers passing output data from the
    Equipment Phase
     to the
    Equipment Sequence
    .
  • Generating events to record changes in status and operator interactions.
Equipment Sequence
 programs are IDLE until they are started. Resetting an
Equipment Sequence
 returns them to an IDLE state. Sequence parameters and step tags can be initialized manually or configured as a sequence property.
Monitoring is performed from the
Logix Designer
 application and the
SequenceManager
 Controls. The
Equipment Sequence
 Monitor is the equivalent of the Sequence Detail Control and the Sequence Parameter Control. The rendering of status is the same. Command interactions are the same with the exception of ownership; the
Logix Designer
 application overrides ownership of the
Equipment Sequence
 and the
SequenceManager
 Controls request ownership.
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