OPC UA (EN)

Protocol

De-facto standard for machine communication in Industry 4.0

Architecture

flowchart TD     A[OPC UA Client] -->|Request| B[OPC UA Server]     B -->|Data| A     B -->|Pub/Sub| C[Message Broker]     C -->|Data| D[Subscribers]     B -->|Data| E[Database]          subgraph OPC UA Server         F[Address Space]         G[Security Policies]         H[Transport Protocols]     end          subgraph OPC UA Client         I[Subscription]         J[Method Calls]         K[Read/Write Services]     end          F -->|Defines| I     F -->|Defines| J     F -->|Defines| K     G -->|Secures| B     H -->|Transports| B

In Context

  • Typically used together with MQTT, MQTT-SN, PROFINET, or EtherNet/IP
  • Related to: IIoT, Industry 4.0, MES, SCADA, Time-Sensitive Networking
  • Example use case: Networking of machines in a smart factory, data exchange between ERP and MES systems
Quelle: AI Generated