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IEC 62541-3-ed.3.0-RLV
OPC Unified Architecture - Part 3: Address Space Model
Translate name
STANDARD published on 8.7.2020
The information about the standard:
Designation standards: IEC 62541-3-ed.3.0-RLV
Publication date standards: 8.7.2020
SKU: NS-1096110
The number of pages: 396
Approximate weight : 1219 g (2.69 lbs)
Country: International technical standard
Category: Technical standards IEC
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Annotation of standard text IEC 62541-3-ed.3.0-RLV :
IEC 62541-3:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 62541-3:2020 defines the OPC Unified Architecture (OPC UA) AddressSpace and its Objects. This document is the OPC UA meta model on which OPC UA information models are based. This third edition cancels and replaces the second edition published in 2015. This edition includes the following significant technical changes with respect to the previous edition: a) Added new improved approach for exposing structure definitions. An Attribute on the DataType Node now simply contains a binary description. b) Added new flags for Variables to indicate atomicity when reading or writing. c) Added Roles and Permissions to allow configuration of a role-based authorization. d) Added new data types: “Union”, “Decimal”, “OptionSet”, “DateString”, “TimeString”, “DurationString”, NormalizedString”, “DecimalString”, and “AudioDataType”. e) Added definition on how to use the ModellingRules OptionalPlaceHolder and MandatoryPlaceHolder for Methods. f) Added optional Properties “MaxCharacters” and “MaxByteStringLength” to Variable Nodes.
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