Information service
25.040 Industrial automation systems
New standards
EVS-EN IEC 62541-14:2026
OPC unified architecture - Part 14: Pubsub
Scope: IEC 62541-14:2026 defines the PubSub communication model. It defines an OPC UA publish subscribe pattern which complements the client server pattern defined by the Services in IEC 62541-4. See IEC 62541-1 for an overview of the two models and their distinct uses.
PubSub allows the distribution of data and events from an OPC UA information source to interested observers inside a device network as well as in IT and analytics cloud systems.
This document consists of
• a general introduction of the PubSub concepts,
• a definition of the PubSub configuration parameters,
• mapping of PubSub concepts and configuration parameters to messages and transport protocols,
• and a PubSub configuration model.
This second edition cancels and replaces the first edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of a “Quantity Model” which can be referenced from EngineeringUnit Properties. The model defines quantities and assigned units. In addition it provides alternative units and the conversion to them.
b) Addion of rules for ValuePrecision Property:
• can also be used for other subtypes like Duration and Decimal.
• rules have been added when ValuePrecision has negative values.
PubSub allows the distribution of data and events from an OPC UA information source to interested observers inside a device network as well as in IT and analytics cloud systems.
This document consists of
• a general introduction of the PubSub concepts,
• a definition of the PubSub configuration parameters,
• mapping of PubSub concepts and configuration parameters to messages and transport protocols,
• and a PubSub configuration model.
This second edition cancels and replaces the first edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of a “Quantity Model” which can be referenced from EngineeringUnit Properties. The model defines quantities and assigned units. In addition it provides alternative units and the conversion to them.
b) Addion of rules for ValuePrecision Property:
• can also be used for other subtypes like Duration and Decimal.
• rules have been added when ValuePrecision has negative values.
Base documents: IEC 62541-14:2026; EN IEC 62541-14:2026
Replaces: EVS-EN IEC 62541-14:2020
IEC 62264-2:2026
Enterprise-Control System Integration - Part 2: Object models and relationships for interfaces between manufacturing operations and business functions
Scope: IEC 62264-2:2026 specifies interface content exchanged between manufacturing control functions and other enterprise functions as interrelated information models. The information models are represented as an interrelated collection of conceptual object models which can be used for the implementation of applications with logical data and physical data models. The data exchanges in interfaces are scoped as between Level 3 manufacturing operations and Level 4 business systems in the hierarchical model defined in IEC 62264-1. The purpose of this document is to reduce the risk, cost, and errors associated with interface implementation.
Since this document covers many manufacturing operations and enterprise domains and there are many different standards for those domains, the semantics of this data exchange standard are described at a conceptual level intended to enable the other standards to be mapped to these semantics. To this end, this document defines a set of elements contained in the generic interface, together with a mechanism for extending the interface content for implementations.
The scope is limited to the definition of object models and attributes of the exchanged information defined in the IEC 62264-1.
This third edition cancels and replaces the second edition published in 2013. It is published as a double logo standard. This edition constitutes a technical revision. Due to the extent of the changes and updates, this document cannot ensure backward compatibility to implementations based on older editions. This edition includes the following significant technical changes with respect to the previous edition and ANSI/ISA 95.00.02-2018 (ED3):
a) object models are added for the use of interactive communications to notify subscribers about the occurrence of events and to provide context information about the event, making the information exchange more efficient and consistent. The added object models were the operations event model and operations record model.
b) operations location model and spatial definition attribute added to allow the description of operation locations.
c) operations test model added to define how test specifications and test results are related to testable objects, operations test requirements, actual resource, and work definitions.
d) definition of possible measurement uncertainty sub-attributes for all value, quantity and duration attributes defined in this document.
e) updated hierarchy scope model.
f) removed as separate models in this edition were the models for product definition, production schedule, production performance, and production capability. Their content is covered for all manufacturing operations management categories under operations models.
g) object model was added for the operations segment capability as a collection of resources related to other operations models.
h) updated relationship name and role name conventions established in 3.3.4 and implemented across all models and associated tables.
i) updated all objects’ relationship role table with explicit source and target names.
j) updated common header attributes for objects and property objects established in 4.5 and implemented across all models and associated tables.
k) updated explanation of the ‘relationships between resource reference objects in operations management information models and resource models. These additional resource relationships are added to all operations management models.
l) added an annex explanation for implementation options for specifying values in unit of measurement attribute.
m) added an annex explanation for implementation considerations for inheritance and persistence of data exchange object models.
Since this document covers many manufacturing operations and enterprise domains and there are many different standards for those domains, the semantics of this data exchange standard are described at a conceptual level intended to enable the other standards to be mapped to these semantics. To this end, this document defines a set of elements contained in the generic interface, together with a mechanism for extending the interface content for implementations.
The scope is limited to the definition of object models and attributes of the exchanged information defined in the IEC 62264-1.
This third edition cancels and replaces the second edition published in 2013. It is published as a double logo standard. This edition constitutes a technical revision. Due to the extent of the changes and updates, this document cannot ensure backward compatibility to implementations based on older editions. This edition includes the following significant technical changes with respect to the previous edition and ANSI/ISA 95.00.02-2018 (ED3):
a) object models are added for the use of interactive communications to notify subscribers about the occurrence of events and to provide context information about the event, making the information exchange more efficient and consistent. The added object models were the operations event model and operations record model.
b) operations location model and spatial definition attribute added to allow the description of operation locations.
c) operations test model added to define how test specifications and test results are related to testable objects, operations test requirements, actual resource, and work definitions.
d) definition of possible measurement uncertainty sub-attributes for all value, quantity and duration attributes defined in this document.
e) updated hierarchy scope model.
f) removed as separate models in this edition were the models for product definition, production schedule, production performance, and production capability. Their content is covered for all manufacturing operations management categories under operations models.
g) object model was added for the operations segment capability as a collection of resources related to other operations models.
h) updated relationship name and role name conventions established in 3.3.4 and implemented across all models and associated tables.
i) updated all objects’ relationship role table with explicit source and target names.
j) updated common header attributes for objects and property objects established in 4.5 and implemented across all models and associated tables.
k) updated explanation of the ‘relationships between resource reference objects in operations management information models and resource models. These additional resource relationships are added to all operations management models.
l) added an annex explanation for implementation options for specifying values in unit of measurement attribute.
m) added an annex explanation for implementation considerations for inheritance and persistence of data exchange object models.
Base documents:
Replaces: IEC 62264-2:2013
Replaced standards
IEC 62264-2:2013
Enterprise-control system integration - Part 2: Object and attributes for enterprise-control system integration
Scope: IEC 62264-2:2013 specifies generic interface content exchanged between manufacturing control functions and other enterprise functions. The interface considered is between Level 3 manufacturing systems and Level 4 business systems in the hierarchical model defined in IEC 62264-1. The goal is to reduce the risk, cost, and errors associated with implementing the interface. This second edition cancels and replaces the first edition published in 2004 and constitutes a technical revision. It includes the following technical:
- addition of object models for exchange information used in manufacturing operations management activities;
- displacement of the UML object models that were in IEC 62264-1:2003 into this standard so that the object models and the associated attribute tables were available in the same document;
- addition of the Hierarchy scope object definition to replace the Location attribute used in the previous edition;
- addition of a value type section to define the exchange of non-simple value types;
- definition of simple value types were defined using the ISO 15000-5.
- addition of object models for exchange information used in manufacturing operations management activities;
- displacement of the UML object models that were in IEC 62264-1:2003 into this standard so that the object models and the associated attribute tables were available in the same document;
- addition of the Hierarchy scope object definition to replace the Location attribute used in the previous edition;
- addition of a value type section to define the exchange of non-simple value types;
- definition of simple value types were defined using the ISO 15000-5.
Base documents:
Replaced: IEC 62264-2:2026
EVS-EN IEC 62541-14:2020
OPC Unified Architecture - Part 14: PubSub
Scope: IEC 62541-14:2020 defines the OPC Unified Architecture (OPC UA) PubSub communication model. It defines an OPC UA publish subscribe pattern which complements the client server pattern defined by the Services in IEC 62541-4. IEC TR 62541-1 gives an overview of the two models and their distinct uses.
PubSub allows the distribution of data and events from an OPC UA information source to interested observers inside a device network as well as in IT and analytics cloud systems.
This document consists of
• a general introduction of the PubSub concepts,
• a definition of the PubSub configuration parameters,
• mapping of PubSub concepts and configuration parameters to messages and transport protocols, and
• a PubSub configuration model.
Not all OPC UA Applications will need to implement all defined message and transport protocol mappings. IEC 62541-7 defines the Profile that dictates which mappings need to be implemented in order to be compliant with a particular Profile.
PubSub allows the distribution of data and events from an OPC UA information source to interested observers inside a device network as well as in IT and analytics cloud systems.
This document consists of
• a general introduction of the PubSub concepts,
• a definition of the PubSub configuration parameters,
• mapping of PubSub concepts and configuration parameters to messages and transport protocols, and
• a PubSub configuration model.
Not all OPC UA Applications will need to implement all defined message and transport protocol mappings. IEC 62541-7 defines the Profile that dictates which mappings need to be implemented in order to be compliant with a particular Profile.
Base documents: IEC 62541-14:2020; EN IEC 62541-14:2020
Replaced: EVS-EN IEC 62541-14:2026