NodeId¶

Canonical path: o6.NodeId

NodeId ¶

OPC UA NodeId: the machine-readable identity of one node.

Every address-space operation ultimately targets a NodeId, which is a namespace index plus a numeric, string, ByteString, or Guid identifier.

Besides the explicit ns=/i=/s=/b=/g= keywords, a NodeId can be parsed from a single string ("i=84", "ns=1;s=Temperature"), built from anything that carries a NodeId, or built from a registered DataType or generated type class to obtain that type's own NodeId. As an o6 extension, the namespace part of a string may also be a namespace shortname ("ns=di;i=1") or URI ("nsu=http://…/UA/DI/;i=1"), optionally amended with scope and version to disambiguate releases.

See Address & Identity Types.

Attributes¶

ns `property` ¶

ns

The namespace, as a NamespaceModule.

Falls back to the plain numeric index when no namespace is registered under it, so nodeId.ns.uri and nodeId.ns.version are available for every loaded namespace.

id `property` ¶

id

The identifier part, in whichever of the four forms it uses.

Functions¶

init ¶

__init__() -> None

__init__(numericNs0Id: int) -> None

__init__(parseStr: str) -> None

__init__(hasNodeId: HasNodeId) -> None

__init__(registeredType: type[Any]) -> None

__init__(other: NodeId) -> None

__init__(expandedNodeId: ExpandedNodeId) -> None

__init__(nop: None) -> None

__init__(*, ns: int = 0, i: int) -> None

__init__(*, ns: int = 0, s: str) -> None

__init__(*, ns: int = 0, b: bytes) -> None

__init__(*, ns: int = 0, g: UUID) -> None

__init__(*args, **kwargs)