IEC 62541-3:2015 ED2

OPC unified architecture - Part 3: Address Space Model

Publication date: Mar 25, 2015

General information

Current stage: 99.60 Effective date: Jul 8, 2020

Next stage: WPUB

Originator: IEC

Owner: TC 65/SC 65E

Type: International Standard

ICS: 25.040.40 35.100.05

Languages: English French

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Status: Revised

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Scope

IEC 62541-3:2015 describes the OPC Unified Architecture (OPC UA) AddressSpace and its Objects. It is the OPC UA meta model on which OPC UA information models are based. This second edition cancels and replaces the first edition published in 2010 and constitutes a technical revision. It includes the following changes:
- Added rules for subtyping enumerations;
- Added Property EnumValues;
- Added Property ValueAsText;
- Added EventType SystemStatusChangeEventType;
- Added Properties MaxArrayLength and MaxStringLength;
- Removed the concept of ModelParent;
- Added EventType ProgressEventType;
- Stated that it is allowed to use TAI in all places where UTC time is used;
- Added Property EngineeringUnits;
- Added ModellingRules OptionalPlaceholder and MandatoryPlaceholder.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 62541-3:2010 ED1

NOW

WITHDRAWN
IEC 62541-3:2015 ED2
99.60 Withdrawal effective
Jul 8, 2020

REVISED BY

PUBLISHED
IEC 62541-3:2020 ED3