BS EN IEC 62541-8:2020 - OPC Unified Architecture. Data Access

BS EN IEC 62541-8:2020

OPC Unified Architecture. Data Access

Status : Current   Published : August 2020



IEC 62541-8:2020 is available as

IEC 62541-8:2020 RLV

which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62541-8:2020 is part of the overall OPC Unified Architecture (OPC UA) standard series and defines the information model associated with Data Access (DA). It particularly includes additional VariableTypes and complementary descriptions of the NodeClasses and Attributes needed for Data Access, additional Properties, and other information and behaviour. The complete address space model, including all NodeClasses and Attributes is specified in IEC 62541-3. The services to detect and access data are specified in IEC 62541-4. This third edition cancels and replaces the second edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) added new VariableTypes for AnalogItems; b) added an Annex that specifies a recommended mapping of OPC UA Dataccess to OPC COM DataAccess; c) changed the ambiguous description of "Bad_NotConnected"; d) updated description for EUInformation to refer to latest revision of UNCEFACT units.

Standard NumberBS EN IEC 62541-8:2020
TitleOPC Unified Architecture. Data Access
Publication Date12 August 2020
Normative References(Required to achieve compliance to this standard)IEC 62541-5, IEC 62541-4, IEC 62541-3, IEC TR 62541-1, CLC/TR 62541-1
Informative References(Provided for Information)No other standards are informatively referenced
ReplacesBS EN 62541-8:2015
International RelationshipsEN IEC 62541-8:2020,IEC 62541-8:2020
Draft Superseded By18/30365361 DC
DescriptorsUnified modelling language, Digital computers, Interfaces (data processing), Access control (data), Computer technology, Information exchange, Control technology, Technology transfer, Objects (programming language), Data processing, Computer software, Data transmission
Title in FrenchArchitecture unifiée OPC Accès aux données
Title in GermanOPC Unified Architecture Zugriff auf Automatisierungsdaten
ISBN978 0 580 51137 0
File Size1.681 MB

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