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BSI 24/30484420 DC 2024

BSI 24/30484420 DC 2024

$13.70

BS EN IEC 62541-8. OPC Unified Architecture – Part 8. Data Access

Published By Publication Date Number of Pages
BSI 2024 81
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PDF Catalog

PDF Pages PDF Title
9 FOREWORD
11 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
12 3.2 Abbreviated terms
4 Concepts
14 5 Model
5.1 General
5.2 SemanticsChanged
5.3 Variable Types
5.3.1 DataItemType
15 5.3.2 AnalogItem VariableTypes
5.3.2.1 General
16 5.3.2.2 BaseAnalogType
17 5.3.2.3 AnalogItemType
5.3.2.4 AnalogUnitType
18 5.3.2.5 AnalogUnitRangeType
5.3.3 DiscreteItemType
5.3.3.1 General
5.3.3.2 TwoStateDiscreteType
19 5.3.3.3 MultiStateDiscreteType
5.3.3.4 MultiStateValueDiscreteType
20 5.3.4 ArrayItemType
5.3.4.1 General
21 5.3.4.2 YArrayItemType
23 5.3.4.3 XYArrayItemType
5.3.4.4 ImageItemType
24 5.3.4.5 CubeItemType
25 5.3.4.6 NDimensionArrayItemType
5.4 Address Space model
26 5.5 Attributes of DataItems
27 5.6 DataTypes
5.6.1 Overview
5.6.2 Range
5.6.3 EUInformation
5.6.3.1 General
5.6.3.2 Extented Unit information and Quantity
28 5.6.3.3 Definition of EUInformation
5.6.3.4 Mapping of UN/CEFACT to EUInformation
29 5.6.4 ComplexNumberType
30 5.6.5 DoubleComplexNumberType
5.6.6 AxisInformation
31 5.6.7 AxisScaleEnumeration
5.6.8 XVType
33 6 Quantities and Units model
6.1 General
6.2 Quantities entry point
6.3 Syntax References
6.3.1 General
34 6.3.2 Using Dictionary References
35 6.3.3 Syntax Reference Identifier
37 6.4 ObjectTypes
6.4.1 QuantityType ObjectType definition
38 6.4.2 UnitType and subtypes
6.4.2.1 UnitType ObjectType Definition
39 6.4.2.2 ServerUnitType ObjectType Definition
40 6.4.2.3 AlternativeUnitType ObjectType Definition
41 6.4.3 SyntaxReferenceEntryType ObjectType definition
42 6.5 References
6.5.1 HasEngineeringUnitDetails
6.5.2 HasQuantity
6.6 DataTypes
6.6.1 AnnotationDataType DataType definition
43 6.6.2 LinearConversionDataType DataType definition
44 6.6.3 ConversionLimitEnum
6.6.4 QuantityDimension
47 7 Data Access specific usage of Services
7.1 General
7.2 PercentDeadband
7.3 Data Access status codes
7.3.1 Overview
7.3.2 Operation level result codes
49 7.3.3 LimitBits
50 Annex A (normative) OPC COM DA to UA mapping
A.1 Introduction
A.2 Security Considerations
A.3 COM UA wrapper for OPC DA Server
A.3.1 Information Model mapping
A.3.1.1 General
51 A.3.1.2 Branch
52 A.3.1.3 Item
53 A.3.1.4 Property
A.3.1.5 BrowseName and DisplayName Mapping
54 A.3.2 Data and error mapping
A.3.2.1 General
56 A.3.2.2 Value
A.3.2.3 Quality
57 A.3.2.4 Timestamp
A.3.3 Read data
58 A.3.4 Write Data
A.3.5 Subscriptions
59 A.4 COM UA proxy for DA Client
A.4.1 Guidelines
A.4.2 Information Model and Address Space mapping
A.4.2.1 General
60 A.4.2.2 Object Nodes
61 A.4.2.3 Variable Nodes
62 A.4.2.4 Namespace Indices
63 A.4.3 Data and error mapping
A.4.3.1 General
64 A.4.3.2 Value
A.4.3.3 Quality
65 A.4.3.4 Timestamp
A.4.4 Read data
66 A.4.5 Write data
A.4.6 Subscriptions
68 Annex B (normative) UCUM Symbols
B.1 Introduction – License
B.2 Representation
69 B.3 Tables of Terminal Symbols
B.1.1 Prefixes
70 B.1.2 Base Units
B.1.3 Derived Unit Atoms
72 B.1.4 Customary Unit Atoms
75 B.1.5 Other Legacy Units
79 Annex C (informative) Outline of Syntax References
C.1 UCUM Syntax Reference
C.2 QUDT Syntax Reference
80 C.3 UNECE Syntax Reference
C.4 IEC CDD Syntax Reference
81 C.5 LATEX_SIUNITX Syntax Reference

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