{
  "$schema": "../format/equipment-class.schema.json",
  "classId": "fanuc-cnc",
  "version": "0.1.0",
  "displayName": "FANUC CNC",
  "description": "FANUC CNC machine tools (mills, lathes, machining centers) accessed via FOCAS2. Pilot equipment class per OtOpcUa corrections doc D1 — chosen because the FOCAS driver already exposes a fixed pre-defined node hierarchy (lmxopcua/docs/v2/driver-specs.md §7) which is essentially a class template already; this file formalizes it.",
  "vendor": "FANUC",
  "applicability": {
    "drivers": ["Focas"],
    "models": ["0i-F", "0i-D", "30i-B", "31i-B", "32i-B"]
  },
  "signals": [
    { "name": "SeriesNumber", "category": "Identity", "dataType": "String", "description": "CNC series (e.g. '0i-F'). From cnc_sysinfo()." },
    { "name": "Version", "category": "Identity", "dataType": "String", "description": "CNC software version. From cnc_sysinfo()." },
    { "name": "MaxAxes", "category": "Identity", "dataType": "Int32", "description": "Maximum axes supported by this CNC. From cnc_sysinfo()." },
    { "name": "AxisCount", "category": "Identity", "dataType": "Int32", "description": "Active axis count. From cnc_rdaxisname()." },

    { "name": "RunState", "category": "Status", "dataType": "Int32", "description": "0=STOP, 1=HOLD, 2=START, 3=MSTR. From cnc_statinfo()." },
    { "name": "Mode", "category": "Status", "dataType": "Int32", "description": "0=MDI, 1=AUTO, 3=EDIT, 4=HANDLE, 5=JOG, 7=REF. From cnc_statinfo()." },
    { "name": "MotionState", "category": "Status", "dataType": "Int32", "description": "0=idle, 1=MOTION, 2=DWELL, 3=WAIT. From cnc_statinfo()." },
    { "name": "EmergencyStop", "category": "Status", "dataType": "Boolean", "description": "From cnc_statinfo()." },
    { "name": "AlarmActive", "category": "Status", "dataType": "Int32", "description": "Bitmask of active alarm categories. From cnc_statinfo()." },

    {
      "name": "AxisAbsolutePosition",
      "category": "Position",
      "dataType": "Float64",
      "unit": "mm",
      "isArray": true,
      "arrayDimension": 32,
      "description": "Per-axis absolute position. Indexed by axis number. From cnc_absolute(). FANUC scaled-integer source converted via cnc_getfigure().",
      "scaling": { "method": "DecimalPlaces", "decimalPlaces": 3 }
    },
    {
      "name": "AxisMachinePosition",
      "category": "Position",
      "dataType": "Float64",
      "unit": "mm",
      "isArray": true,
      "arrayDimension": 32,
      "description": "Per-axis machine position. From cnc_machine().",
      "scaling": { "method": "DecimalPlaces", "decimalPlaces": 3 }
    },
    {
      "name": "ActualFeedRate",
      "category": "Velocity",
      "dataType": "Float64",
      "unit": "mm/min",
      "description": "Actual feed rate. From cnc_actf()."
    },
    {
      "name": "SpindleActualSpeed",
      "category": "Velocity",
      "dataType": "Float64",
      "unit": "rpm",
      "isArray": true,
      "arrayDimension": 8,
      "description": "Per-spindle actual speed. From cnc_acts() / cnc_acts2()."
    },
    {
      "name": "SpindleLoad",
      "category": "Process",
      "dataType": "Float64",
      "unit": "%",
      "isArray": true,
      "arrayDimension": 8,
      "description": "Per-spindle load percentage. From cnc_rdspmeter(). FOCAS2."
    },

    { "name": "MainProgramNumber", "category": "Process", "dataType": "Int32", "description": "From cnc_rdprgnum()." },
    { "name": "RunningProgramNumber", "category": "Process", "dataType": "Int32", "description": "From cnc_rdprgnum()." },
    { "name": "RunningProgramName", "category": "Process", "dataType": "String", "description": "Full program path/name. From cnc_exeprgname(). FOCAS2." },
    { "name": "SequenceNumber", "category": "Process", "dataType": "Int32", "description": "Current N-number. From cnc_rdseqnum()." },
    { "name": "PartsCount", "category": "Counter", "dataType": "Int64", "description": "Parts produced. From cnc_rdparam(6711/6712)." },

    { "name": "ActiveAlarmCount", "category": "Alarm", "dataType": "Int32", "description": "Number of active alarms. From cnc_rdalmmsg(). FOCAS2." }
  ],
  "alarms": [
    { "alarmId": "ps-alarm",  "displayName": "Program/Setup Alarm", "severity": "High",     "description": "P/S alarm category." },
    { "alarmId": "ot-alarm",  "displayName": "Overtravel Alarm",    "severity": "Critical", "description": "OT alarm category — axis overtravel." },
    { "alarmId": "sv-alarm",  "displayName": "Servo Alarm",         "severity": "Critical", "description": "Servo subsystem alarm." }
  ],
  "stateModel": {
    "states": ["Running", "Idle", "Faulted", "Starved", "Blocked"],
    "derivationNotes": "Derivation lives at Layer 3 (System Platform / Ignition), not in OtOpcUa. Suggested mapping (informational): RunState=2 (START) AND MotionState=1 (MOTION) AND AlarmActive=0 → Running; RunState=0 (STOP) OR RunState=1 (HOLD) → Idle; AlarmActive≠0 OR EmergencyStop=true → Faulted; Starved/Blocked are inferred from upstream/downstream signals not exposed by FOCAS itself."
  }
}