Transmission of online and offline data by OPC-UA (Unified Architecture)

operational area | usage

  • Data links between controls and control systems (various industries), e.g. wastewater treatment plants, pumping stations, elevated tanks, water purification plants, etc.

product description

Based on the established OPC-Classic standard, OPC unified architecture was extended by the OPC Foundation with many additional useful functions. These include, among other things:

  • buffering data, which can be transmitted following a connection failure,
  • the new security model, with which an encrypted connection can be set up
  • historical access, enables working with historical data directly within the control system

constructional features

  • Online value transmission
  • Data buffering
  • Manufacturer-independent
  • Security model
  • Historical access


  • Cross-firewall communication
  • Operating system-independent
  • No data loss
  • Data security
  • OPC Foundation standard
  • Easy configuration
  • Preferred data communication protocol for industrial 4.0 applications



contact person

Axel Marx
Managing Director wks Automation GmbH