OPC UA技术动态.pdf

1、Jim Luth System Architect,Process Automation R&DOPC Foundation CTO,UA Working Group Chairman,TAC Member,TCB MemberJim.LuthSE.com2OPC UA Part Versions-Google Sheets3JFM A MJJASONDJFM A MJJASONDJFM A MJJASONDJFM A MJJASOND1.05.0016271.05.011911.05.02111.05.0318131.05.0430302021202220232024ReleaseCandi

2、dateFinalReleaseAdded Elliptic Curve Cryptography(ECC)Extended StateMachine model with choice states and guardsAdded RoleSets and well-known Roles4Support for MQTT 5.0Defined UADP Header LayoutsAdded PubSub discovery messagesEnhancements to PubSub configuration modelAdded Part 22 Base Network ModelA

3、dded Part 23 Common ReferenceTypes5Added AlarmState Variable to allow DA Clients to display aggregate Alarm informationAdded support for gzip compressed JSON messages for MQTT 5.0Added ReferenceDescription Variable to allow Reference refinementAdded Part 21 Device OnboardingAdd Part 24-Scheduler6Add

4、ed BitField DataTypeAdded a way to express metadata for key-value pairsAdded a“Quantity Model”referenced from EngineeringUnits PropertyAdded Historical Configuration objects for external event collection and periodic data collectionAdded standard MQTT topic tree7Added“special locales”to allow the re

5、turn of text in multiple locales at the same timeSimplified“compact”and“verbose”JSON encodings that use NamespaceURIs instead of Namespace indexesAdded OpenAPI 3.0 and JSON Schema mapping allowing an IT-friendly REST interface to OPC UA Client/ServerAdded sorting capability to historical event retrievalAdd PubSub“Actions”for executing commands with a request response pattern(e.g.call UA Methods).Added DTLS mapping for UDP transport89