UNE-EN IEC 62541-14:2020

This specification defines the OPC Unified Architecture (OPC UA) PubSub communicationmodel. It defines an OPC UA publish subscribe pattern which complements the client serverpattern defined by the Services in IEC 62541-4. See IEC TR 62541-1 for an overview of thetwo models and their distinct uses.PubSub allows distributing data and events from an OPC UA information source to interestedobservers inside a device network as well as in IT and analytics cloud systems.The specification 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 transportprotocols," and a PubSub configuration model.Not all OPC UA Applications will need to implement all defined message and transportprotocol mappings. IEC 62541-7 defines the Profile that dictate which mappings need to beimplemented in order to be compliant with a particular Profile.