FPF Reference

    F.2:11.2 Sys‑CAL / LCA‑CAL + services

    Preface node heading:f-2-11-2-sys-cal-lca-cal-services:69728

    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

    • Context: State‑space control texts — LNF: actuation Tech: actuation - Plain: control output Gloss: “Signal applied to the plant to influence state or output.”

    • Context: IEC 61131‑3 — LNF: task Tech: task - Plain: runtime program execution Gloss: “Cyclic or event‑driven execution unit for control programs.”

    • Context: ITIL 4 (2020) — LNF: incident Tech: incident - Plain: reported disruption Gloss: “Unplanned interruption or reduction in the quality of a service.”

    Thinking pay‑off: avoids calling a plant fault an “incident” unless you cross Contexts later with an explicit bridge.

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