Docs · Spec · PackML
PackML — Packaging Machine Language
PackML — packaging-machine language, the OMAC standard for state machines on packaging lines. One enum (the famous PackML state model), six structured types.
OPC UA companion specification for PackML — the OMAC packaging-machine state-machine standard. Defines the 17-state PackML state model and the counters / parameters every packaging machine reports.
What's in the package
| Artefact | Count |
|---|---|
| Enums | 1 |
| DTOs | 6 |
| Codecs | 6 |
| Registrars | 1 (PackMLRegistrar) |
The one enum is the canonical PackML state model — used everywhere PackML is referenced.
Loading
php
examples/packml/load.php
use PhpOpcua\Client\ClientBuilder;
use PhpOpcua\Nodeset\PackML\PackMLRegistrar;
$client = ClientBuilder::create()
->loadGeneratedTypes(new PackMLRegistrar())
->connect('opc.tcp://packer.local:4840');Direct dependencies
None — PackML is a root spec.
Notable types
The six DTOs cover PackML's reporting structures:
- Performance counters (good / bad / waste / total counts)
- Alarm / warning / status records
- Recipe descriptors
- Equipment / instance configuration records
Notable enums
PackMLStateEnum— the 17-state PackML model (Idle, Starting, Execute, Stopping, Suspended, Aborted, …). Auto-cast on any PackML state read.
Loaded by
- Scales — scales adopt PackML's state model
- TMC — tobacco-machinery line uses PackML
- Weihenstephan — beverage-line spec extends PackML
Last updated · 2026-05-25