Docs · Spec · AMB

AMB — Asset Management Base

Asset Management — maintenance methods, root-cause records, identification of replaceable equipment. One enum, two structured types, a registrar with two codecs.

OPC UA companion specification for asset management — recording maintenance method, root causes for events, name + NodeId pairs for cross-referencing assets. Used standalone or as a dependency by domain specs that integrate maintenance flows (LADS, mining, process industry).

What's in the package

Artefact	Count
Enums	1
DTOs	2
Codecs	2
Registrars	1 (`AMBRegistrar`)

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php examples/amb/load.php

use PhpOpcua\Client\ClientBuilder;
use PhpOpcua\Nodeset\AMB\AMBRegistrar;

$client = ClientBuilder::create()
    ->loadGeneratedTypes(new AMBRegistrar())
    ->connect('opc.tcp://asset-mgmt.local:4840');

Direct dependencies

None — AMB is a root spec.

Notable types

Types\NameNodeIdDataType — (LocalizedText $Name, NodeId $NodeId). Used wherever the spec needs a human-readable name paired with an OPC UA NodeId reference.
Types\RootCauseDataType — root-cause record for maintenance events. Cross-references a MaintenanceMethodEnum value.

Notable enums

MaintenanceMethodEnum — kind of maintenance performed (preventive, corrective, …). Auto-cast on reads of any MaintenanceMethod-typed node.

Used by

LADS — laboratory devices use AMB for maintenance records.

Anything that ships with maintenance logs and wants the AMB shapes can declare AMB as a dependency; few do at the published spec level, but custom registrars that share AMB's vocabulary fit naturally here.

Last updated · 2026-05-25

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