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Library / First Principles Framework (FPF) - Core Conceptual Specification
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F.11:11.2 - Industrial furnace control

  • Method: PID with feed-forward.
  • MethodDescription: controller tuning sheet and program description.
  • Work: the actual PLC task cycles in the stated interval.
  • Outputs: setpoints and valve-duty values produced during those cycles.
  • Evidence: temperature observations and their scale and unit basis.

If the IEC task expression and a PROV Activity expression are related for reporting, state that exact F.9 relation and loss. It does not create the Work-to-output or evidence relations.