Equipment Sequences and Equipment Sequence step commands

The following table shows the commands that can be used with
Equipment Sequence
s, and
Equipment Sequence
 steps with their associated
Equipment Phase
s. When you hover over the icon, the button background shows a dark shade of blue and a dark blue outline.
Icon
Command
Description
Start
The
Start
 button commands:
  • The Equipment Sequence to start execution.
  • The Equipment Sequence step and the associated phase to start.
Hold
The
Hold
 button commands:
  • The Equipment Sequence to hold active transitions and active steps and their associated Equipment Phases.
  • The Equipment Sequence step and its associated phase to hold.
Reset
The
Reset
button commands:
  • The Equipment Sequence to reset active transitions and active steps and their associated Equipment Phases.
  • The Equipment Sequence step and its associated phase to reset.
Abort
The
Abort
button commands:
  • The Equipment Sequence to hold active transitions and active steps and their associated Equipment Phases.
  • The Equipment Sequence step and its associated phase to abort.
Stop
The
Stop
button commands:
  • The Equipment Sequence to stop active transitions and active steps and their associated Equipment Phases.
  • The Equipment Sequence step and its associated phase to stop.
Restart
The
Restart
button commands:
  • The Equipment Sequence to restart active transitions and active steps and their associated Equipment Phases from a HELD state.
  • The Equipment Sequence step and its associated phase to restart from a HELD state.
Pause
The
Pause
button commands:
  • The Equipment Sequence to pause execution of the sequence when active transition expressions evaluate TRUE.
  • The Equipment Sequence step and its associated phase to enable pausing when an Equipment Phase Paused (PPD) instruction is executed.
    When the
    Pause
    button is on, the button background is a light blue with a dark blue outline.
    A Resume command disables the Pause command so the Equipment Sequence or Equipment Sequence step with its associated phase runs normally until commanded to pause again.
Auto Pause
The
Auto Pause
 button commands:
  • The Equipment Sequence to pause execution of the sequence when active transition expressions evaluate TRUE.
  • The Equipment Sequence step and its associated phase to enable pausing when an Equipment Phase Paused (PPD) instruction is executed.
    When the
    Auto Pause
     button is on, the button background is a light blue with a dark blue outline.
    A
    Resume
    command disables the command to pause, the
    Auto Pause
     command sets the Pause Enabled flag to TRUE.
Resume
The
Resume
button commands:
  • The Equipment Sequence to resume execution of the sequence.
  • The Equipment Sequence step and its associated phase to resume execution.
    For an Equipment Sequence, all transitions in the FIRING state will fire (stopping and resetting preceding steps, attaching, and starting trailing steps).
    The
    Resume
     command clears the effects of the
    Pause
     command, reinitiates execution, and if
    Auto Pause
     is enabled, reestablishes the Pause.
Equipment Sequence only commands
The following table shows the commands that can be used with Equipment Sequences only.
When you hover over the icon, the button background shows a dark shade of blue and a dark blue outline. When the button is toggled on, the button background is a light blue with a dark blue outline.
Icon
Command
Description
Take Ownership
Taking ownership means that this application now has the right to command this Equipment Sequence; other internal sequencers, external sequencers, and operators are not allowed to command this sequence.
When you have not taken ownership, the icon appears as .
When you click to take ownership, the icon appears as .
Releasing Ownership
Releasing ownership means that internal sequencers, external sequencers, and operators with attachments are allowed to command this sequence.
When you have taken ownership, the icon appears as .
When you click to release ownership, the icon appears as .
Set Sequence ID
The
Set Sequence ID
 button assigns the user-specified sequence ID to the Equipment Sequence.
Automatic
A sequence can operate in two modes:
Automatic
and
Manual
.
Automatic
mode allows the sequencing engine to automatically coordinate executing the sequence.
When you are in
Automatic
mode, the icon appears as .
When you click to enter
Manual
mode, the icon appears as .
You can command a sequence to change modes when the sequence is active.
Manual
A sequence can operate in two modes:
Automatic
and
Manual
.
Manual
mode does not allow transitions to complete firing, so operators and control engineers directly command steps and their attached phases without interruption from the sequencing engine.
When you are in
Manual
mode, the icon appears as .
When you click to enter
Automatic
mode, the icon appears as .
You can command a sequence to change modes when the sequence is active.
Initialize Tags
The
Initialize Tags
 button updates all sequencing parameter and step tag value members with the configured Initial Value. Also sets the tag's Valid member equal to the value of the InitializeAsValid flag.
Enabled if the sequence's state is Idle, and the controller is online.
Change Active Step
The
Change Active Step
 command is a way to change the set of active elements within an executing sequence. The sequence must be in
Manual
 mode so transitions will not fire and change the set of steps that are active.
Clear Failures
The
Clear Failures
 command, when applied to a sequence, causes the failure flags on the sequence and all steps and their associate phases to be reset, clearing them. All visual indication of the presence of failures in the sequence and on specific steps are cleared. If the cause of the failure has not been resolved, the next scan by the equipment sequence engine regenerates the failure.
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