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Actions and qualifiers

An action is ladder logic attached to a step. Its qualifier says when it runs.

Qualifiers

QualifierRuns the actionUse it to
NEvery scan while the step is activeRun a pump for as long as the step lasts
POnce, on the first scan of the stepAdd 1 to a batch count on entry
SFrom this step on, every scan, until an R action resets itStart an agitator that runs over several steps
RStops one S actionStop that agitator in a later step
LWhile the step is active, for the first Time msOpen a valve for 2 s at the start of a step
DWhile the step is active, after Time msStart mixing 3 s after a step starts

Over time

While a step is active: N runs the whole time, P runs on the first scan only, L runs until its time, D runs after its time. S keeps running after the step ends, until a later step runs an R action for it.StepNPLDSStep onL timeD timeStep offR action

Add an action

  1. Select a step and choose Add action.
  2. Type an Action name and choose a Qualifier.
  3. For L and D, set Time (ms). For R, choose the stored action in Resets.
  4. Choose Edit logic to write the action's rungs in the ladder editor.

Common mistakes

  • An output stays on after the stepIt is an S action. Add an R action for it on a later step.
  • Expecting an OTE in an action to turn offWhen the action stops, its rungs stop running, so the OTE keeps its last value. Drive the output from the step's status tag instead: XIC Mixer_ST002 → OTE Pump.

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