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BS EN 62541-8:2011:2012 Edition

BS EN 62541-8:2011:2012 Edition

$142.49

OPC unified architecture – Data Access

Published By Publication Date Number of Pages
BSI 2012 24
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This part of IEC 62541 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 complemental 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.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
7 FOREWORD
9 INTRODUCTION
10 1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
11 3.2 Abbreviations
4 Concepts
12 5 Model
5.1 General
Figures
Figure 1 – OPC DataItems are linked to automation data
13 5.2 Variable Types
Figure 2 – DataItem VariableType Hierarchy
Tables
Table 1 – DataItemType Definition
14 Table 2 – AnalogItemType Definition
15 Table 3 – DiscreteItemType Definition
Table 4 – TwoStateDiscreteType Definition
16 5.3 AddressSpace Model
Table 5 – MultiStateDiscreteType Definition
17 5.4 Attributes of DataItems
Figure 3 – Representation of DataItems in the AddressSpace
18 5.5 Property DataTypes
Table 6 – Range Data Type Structure
Table 7 – Range Definition
Table 8 – EUInformation Data Type Structure
19 6 Data Access specific usage of Services
6.1 General
6.2 PercentDeadband
6.3 Data Access Status Codes
Table 9 – EUInformation Definition
20 Table 10 – Operation level result codes for BAD data quality
Table 11 – Operation level result codes for UNCERTAIN data quality
21 Table 12 – Operation level result codes for GOOD data quality

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BS EN 62541-8:2011
$142.49