EN 62541-8:2015

OPC unified architecture - Part 8: Data Access EN 62541-8:2015

Publication date:   Jul 16, 2015

General information

99.60 Withdrawal effective   Jul 27, 2023

CENELEC

CLC/TC 65X Industrial-process measurement, control and automation

European Norm

25.040.40   Industrial process measurement and control | 35.100   Open systems interconnection (OSI)

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Scope

IEC 62451-8:2015 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. This second edition cancels and replaces the first edition published in 2011 and constitutes a technical revision. This edition includes the following changes:

- Clarified that deadband has to be between 0.0 and 100.0. Violations result in error Bad_DeadbandFilterInvalid;

- Added VariableTypes handling ArrayItems and DataTypes supporting this, including complex number types.

Life cycle

PREVIOUSLY

WITHDRAWN
EN 62541-8:2011

NOW

WITHDRAWN
EN 62541-8:2015
99.60 Withdrawal effective
Jul 27, 2023

REVISED BY

PUBLISHED
EN IEC 62541-8:2020