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Library / First Principles Framework (FPF) - Core Conceptual Specification
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F.13:11.2 - Sys‑CAL × LCA‑CAL — separating execution vs actuation

  • Contexts: IEC 61131‑3 (run); state‑space control texts (design).
  • Temptation: Rename “task execution” to “actuation” “to sound control‑ish”.
  • Diagnosis: Different Contexts; different SenseCells (program run vs control output).
  • Move: No rename. Keep the labels. Establish any actual Work-to-signal production or output relation under its direct pattern, following F.11. Add F.9 only when a separate semantic correspondence between exact local senses is needed; then keep the bounded-use claim and reliance separate.
  • Pay‑off: Plant narratives stop calling programs “actuators”; runtime vs control semantics stay crisp.