BS EN IEC 62541-6:2020
$215.11
OPC Unified Architecture – Mappings
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 126 |
IEC 62541-6:2020 is available as IEC 62541-6:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62541-6:2020 specifies the OPC Unified Architecture (OPC UA) mapping between the security model described in IEC TR 62541-2, the abstract service definitions specified in IEC 62541-4, the data structures defined in IEC 62541-5 and the physical network protocols that can be used to implement the OPC UA specification. 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) Encodings: โข added JSON encoding for PubSub (non-reversible); โข added JSON encoding for Client/Server (reversible); โข added support for optional fields in structures; โข added support for Unions. b) Transport mappings: โข added WebSocket secure connection โ WSS; โข added support for reverse connectivity; โข added support for session-less service invocation in HTTPS. c) Deprecated Transport (missing support on most platforms): โข SOAP/HTTP with WS-SecureConversation (all encodings). d) Added mapping for JSON Web Token. e) Added support for Unions to NodeSet Schema. f) Added batch operations to add/delete nodes to/from NodeSet Schema. g) Added support for multi-dimensional arrays outside of Variants. h) Added binary representation for Decimal data types. i) Added mapping for an OAuth2 Authorization Framework.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 9 | English CONTENTS |
| 15 | FOREWORD |
| 18 | 1 Scope 2 Normative references |
| 20 | 3 Terms, definitions, abbreviated terms and symbols 3.1 Terms and definitions |
| 21 | 3.2 Abbreviated terms and symbols 4 Overview |
| 22 | Figures Figure 1 โ The OPC UA Stack Overview |
| 23 | 5 Data encoding 5.1 General 5.1.1 Overview 5.1.2 Built-in Types Tables Table 1 โ Built-in Data Types |
| 24 | 5.1.3 Guid 5.1.4 ByteString 5.1.5 ExtensionObject Table 2 โ Guid structure |
| 25 | 5.1.6 Variant 5.1.7 Decimal |
| 26 | 5.2 OPC UA Binary 5.2.1 General 5.2.2 Built-in Types Table 3 โ Layout of Decimal |
| 27 | Figure 2 โ Encoding Integers in a binary stream Figure 3 โ Encoding Floating Points in a binary stream Table 4 โ Supported Floating Point Types |
| 28 | Figure 4 โ Encoding Strings in a binary stream |
| 29 | Figure 5 โ Encoding Guids in a binary stream Figure 6 โ Encoding XmlElement in a binary stream Table 5 โ NodeId components |
| 30 | Figure 7 โ A String NodeId Table 6 โ NodeId DataEncoding values Table 7 โ Standard NodeId Binary DataEncoding |
| 31 | Figure 8 โ A Two Byte NodeId Figure 9 โ A Four Byte NodeId Table 8 โ Two Byte NodeId Binary DataEncoding Table 9 โ Four Byte NodeId Binary DataEncoding |
| 32 | Table 10 โ ExpandedNodeId Binary DataEncoding |
| 33 | Table 11 โ DiagnosticInfo Binary DataEncoding Table 12 โ QualifiedName Binary DataEncoding |
| 34 | Table 13 โ LocalizedText Binary DataEncoding |
| 35 | Table 14 โ Extension Object Binary DataEncoding |
| 36 | Table 15 โ Variant Binary DataEncoding |
| 37 | 5.2.3 Decimal 5.2.4 Enumerations 5.2.5 Arrays Table 16 โ Data Value Binary DataEncoding |
| 38 | 5.2.6 Structures |
| 39 | Table 17 โ Sample OPC UA Binary Encoded structure |
| 40 | 5.2.7 Structures with optional fields |
| 41 | Table 18 โ Sample OPC UA Binary Encoded Structure with optional fields |
| 42 | 5.2.8 Unions Table 19 โ Sample OPC UA Binary Encoded Structure |
| 43 | 5.2.9 Messages |
| 44 | 5.3 OPC UA XML 5.3.1 Built-in Types Table 20 โ XML Data Type Mappings for Integers Table 21 โ XML Data Type Mappings for Floating Points |
| 46 | Table 22 โ Components of NodeId |
| 47 | Table 23 โ Components of ExpandedNodeId |
| 50 | 5.3.2 Decimal 5.3.3 Enumerations |
| 51 | 5.3.4 Arrays 5.3.5 Structures Table 24 โ Components of Enumeration |
| 52 | 5.3.6 Structures with optional fields 5.3.7 Unions |
| 53 | 5.3.8 Messages 5.4 OPC UA JSON 5.4.1 General 5.4.2 Built-in Types |
| 55 | Table 25 โ JSON Object Definition for a NodeId |
| 56 | Table 26 โ JSON Object Definition for an ExpandedNodeId Table 27 โ JSON Object Definition for a StatusCode |
| 57 | Table 28 โ JSON Object Definition for a DiagnosticInfo Table 29 โ JSON Object Definition for a QualifiedName Table 30 โ JSON Object Definition for a LocalizedText |
| 58 | Table 31 โ JSON Object Definition for an ExtensionObject Table 32 โ JSON Object Definition for a Variant |
| 59 | 5.4.3 Decimal 5.4.4 Enumerations 5.4.5 Arrays Table 33 โ JSON Object Definition for a DataValue Table 34 โ JSON Object Definition for a Decimal |
| 60 | 5.4.6 Structures 5.4.7 Structures with optional fields Table 35 โ JSON Object Definition for a Structure with Optional Fields |
| 61 | 5.4.8 Unions 5.4.9 Messages Table 36 โ JSON Object Definition for a Union |
| 62 | 6 Message SecurityProtocols 6.1 Security handshake Figure 10 โ Security handshake |
| 63 | 6.2 Certificates 6.2.1 General Table 37 โ SecurityPolicy |
| 64 | 6.2.2 Application Instance Certificate Table 38 โ Application Instance Certificate |
| 65 | 6.2.3 Certificate Chains 6.3 Time synchronization 6.4 UTC and International Atomic Time (TAI) 6.5 Issued User Identity Tokens 6.5.1 Kerberos |
| 66 | 6.5.2 JSON Web Token (JWT) Table 39 โ Kerberos UserTokenPolicy Table 40 โ JWT UserTokenPolicy |
| 67 | 6.5.3 OAuth2 Table 41 โ JWT IssuerEndpointUrl Definition |
| 68 | Table 42 โ Access Token Claims |
| 69 | 6.6 WS Secure Conversation 6.7 OPC UA Secure Conversation 6.7.1 Overview 6.7.2 MessageChunk structure |
| 70 | Figure 11 โ OPC UA Secure Conversation MessageChunk Table 43 โ OPC UA Secure Conversation Message header |
| 71 | Table 44 โ Asymmetric algorithm Security header |
| 72 | Table 45 โ Symmetric algorithm Security header Table 46 โ Sequence header |
| 73 | Table 47 โ OPC UA Secure Conversation Message footer |
| 74 | 6.7.3 MessageChunks and error handling 6.7.4 Establishing a SecureChannel Table 48 โ OPC UA Secure Conversation Message abort body |
| 75 | Table 49 โ OPC UA Secure Conversation OpenSecureChannel Service |
| 76 | 6.7.5 Deriving keys |
| 77 | 6.7.6 Verifying Message security Table 50 โ PRF inputs for RSA based SecurityPolicies Table 51 โ Cryptography key generation parameters |
| 78 | 7 TransportProtocols 7.1 OPC UA Connection Protocol 7.1.1 Overview |
| 79 | 7.1.2 Message structure Figure 12 โ OPC UA Connection Protocol Message structure Table 52 โ OPC UA Connection Protocol Message header |
| 80 | Table 53 โ OPC UA Connection Protocol Hello Message |
| 81 | Table 54 โ OPC UA Connection Protocol Acknowledge Message Table 55 โ OPC UA Connection Protocol Error Message |
| 82 | 7.1.3 Establishing a connection Table 56 โ OPC UA Connection Protocol ReverseHello Message |
| 83 | Figure 13 โ Client initiated OPC UA Connection Protocol connection Figure 14 โ Server initiated OPC UA Connection Protocol connection |
| 84 | 7.1.4 Closing a connection 7.1.5 Error handling Figure 15 โ Closing a OPC UA Connection Protocol connection |
| 85 | Table 57 โ OPC UA Connection Protocol error codes |
| 86 | 7.2 OPC UA TCP 7.3 SOAP/HTTP 7.4 OPC UA HTTPS 7.4.1 Overview |
| 87 | Figure 16 โ Scenarios for the HTTPS Transport |
| 88 | 7.4.2 Session-less Services 7.4.3 XML Encoding |
| 89 | 7.4.4 OPC UA Binary Encoding 7.4.5 JSON Encoding |
| 90 | 7.5 WebSockets 7.5.1 Overview |
| 91 | 7.5.2 Protocol Mapping 7.5.3 Security Figure 17 โ Setting up Communication over a WebSocket Table 58 โ WebSocket Protocols Mappings |
| 92 | 7.6 Well known addresses Table 59 โ Well known addresses for Local Discovery Servers |
| 93 | 8 Normative Contracts 8.1 OPC Binary Schema 8.2 XML Schema and WSDL 8.3 Information Model Schema 8.4 Formal definition of UA Information Model 8.5 Constants 8.6 DataType encoding 8.7 Security configuration |
| 94 | Annexes Annex A (normative) Constants A.1 Attribute Ids A.2 Status Codes Table A.1 โ Identifiers assigned to Attributes |
| 95 | A.3 Numeric Node Ids |
| 96 | Annex B (normative) OPC UA Nodeset |
| 97 | Annex C (normative) Type declarations for the OPC UA native Mapping |
| 98 | Annex D (normative) WSDL for the XML Mapping D.1 XML Schema D.2 WDSL Port Types D.3 WSDL Bindings |
| 99 | Annex E (normative) Security settings management E.1 Overview |
| 100 | E.2 SecuredApplication |
| 101 | Table E.1 โ SecuredApplication |
| 103 | E.3 CertificateIdentifier |
| 104 | Table E.2 โ CertificateIdentifier |
| 105 | E.4 CertificateStoreIdentifier Table E.3 โ Structured directory store |
| 106 | E.5 CertificateList E.6 CertificateValidationOptions Table E.4 โ CertificateStoreIdentifier Table E.5 โ CertificateList |
| 107 | Table E.6 โ CertificateValidationOptions |
| 108 | Annex F (normative) Information Model XML Schema F.1 Overview F.2 UANodeSet |
| 109 | Table F.1 โ UANodeSet |
| 110 | F.3 UANode Table F.2 โ UANode |
| 111 | F.4 Reference F.5 RolePermission F.6 UAType Table F.3 โ Reference Table F.4 โ RolePermission Table F.5 โ UANodeSet Type Nodes |
| 112 | F.7 UAInstance F.8 UAVariable Table F.6 โ UANodeSet Instance Nodes Table F.7 โ UAInstance |
| 113 | F.9 UAMethod F.10 TranslationType Table F.8 โ UAVariable Table F.9 โ UAMethod |
| 114 | F.11 UADataType Table F.10 โ TranslationType |
| 115 | F.12 DataTypeDefinition F.13 DataTypeField Table F.11 โ UADataType Table F.12 โ DataTypeDefinition |
| 116 | F.14 Variant Table F.13 โ DataTypeField |
| 117 | F.15 Example |
| 119 | F.16 UANodeSetChanges Table F.14 โ UANodeSetChanges |
| 120 | F.17 NodesToAdd F.18 ReferencesToChange Table F.15 โ NodesToAdd Table F.16 โ ReferencesToChange |
| 121 | F.19 ReferenceToChange F.20 NodesToDelete F.21 NodeToDelete Table F.17 โ ReferencesToChange Table F.18 โ NodesToDelete Table F.19 โ ReferencesToChange |
| 122 | F.22 UANodeSetChangesStatus F.23 NodeSetStatusList F.24 NodeSetStatus Table F.20 โ UANodeSetChangesStatus Table F.21 โ NodeSetStatusList |
| 123 | Table F.22 โ NodeSetStatus |
| 124 | Bibliography |
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IEC 62541-6:2020
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