FPF Reference

    F.1:12.3 Control & actuation with services (operational SLOs in plants)

    Preface node heading:f-1-12-3-control-actuation-with-services-operational-slos-in-plants:69438

    What this page is

    This is generated FPF reference text from the specification preface or supporting sections. It helps interpret FPF; it is not FPF Reference product documentation.

    Methodology

    Use it to understand how the specification wants to be read, then return to a route, pattern, or work packet for active work. Cite generated IDs only when the wording changes the task decision.

    Content

    Unification line. Sys‑CAL + LCA‑CAL (planned) + services/deontics.

    Contexts (five Cards).

    1. State‑space control texts — control family; design; controller/plant, feedback.
    2. IEC 61131‑3 — control languages; run; task, program execution.
    3. ISA‑95 — integration family; design; levelled layers, interfaces.
    4. ITIL 4 (2020) — services family; design; SLO/SLA.
    5. SOSA/SSN (2017) — sensing family; run; Observation.

    Thinking pay‑off.

    • “Actuation” is recognised as control output (Sys‑CAL), not a service promise.
    • “Incident” (ITIL) is not a plant fault (Sys‑CAL); Contexts deter category errors.

    Last Updated: 2026-06-08 — upstream FPF commit 093d30e8 (github.com/ailev/FPF)