GSO IEC 62541-3:2021

IEC 62541-3:2015
Gulf Standard   Current Edition · Approved on 01 July 2021

OPC unified architecture - Part 3: Address Space Model

GSO IEC 62541-3:2021 Files

English 258 Pages
Current Edition Reference Language

GSO IEC 62541-3:2021 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.

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