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CNC — Computerized Numerical Control

CNC — Computerized Numerical Control machines. Six enums for axis state, one structured position type, no upstream dependency cascade.

OPC UA companion specification for CNC machine controllers — the control side of milling machines, lathes, machining centres. Distinct from MachineTool, which models the machine itself; CNC covers the controller's runtime state.

What's in the package

Artefact	Count
Enums	6
DTOs	1
Codecs	1
Registrars	1 (`CNCNodeSetRegistrar`)

Note the registrar's non-standard name (CNCNodeSetRegistrar, not CNCRegistrar) — the spec's XML root element is CNCNodeSet.

Loading

php examples/cnc/load.php

use PhpOpcua\Client\ClientBuilder;
use PhpOpcua\Nodeset\CNC\CNCNodeSetRegistrar;

$client = ClientBuilder::create()
    ->loadGeneratedTypes(new CNCNodeSetRegistrar())
    ->connect('opc.tcp://cnc-controller.local:4840');

Direct dependencies

None — CNC is independent of Machinery / MachineTool, even though it conceptually fits underneath them. Combine manually if your target server publishes both.

Notable types

Types\CncPositionDataType — a typed axis position record (units, value, increments).

Notable enums

CncAxisStateEnum — per-axis state (idle, moving, alarmed)
CncOperationModeEnum, CncProgramStateEnum, CncChannelStateEnum — controller-level states
CncAlarmSeverityEnum, CncAlarmCategoryEnum

Pair with MachineTool — most servers publish both, the auto-cast and DTO decoding cover the typed paths, NodeIds from both specs flow through the same client.

Last updated · 2026-05-25

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