Fast and easy integration of OPC UA client/server and publisher/subscriber communication into unidirectional gateway, meeting highest security requirements




  • NAONWORKS provides security solutions for customers’ safe network operations.
  • Solutions aim to use various technologies in open systems for convergence industries.
  • Focus is on industrial protocols, big data, deep packet inspection and technologies for behavior and status analysis. 

Business need

  • A power plant faced critical need for a reliable gateway to facilitate data acquisition between a real-time database (RTDB) and nine different distributed control systems (DCS).
  • The typical client applications in which machine data is used include asset management systems, monitoring dashboards and monitoring systems. 
  • Existing gateway did not have Common Criteria (CC) certificate, a crucial element for safeguarding critical infrastructures. 

Technical Requirements

  • The nine DCSs were from Siemens, ABB and GE.
  • The selected CEREBRO-DD gateway from NAONWORKS had to connect all nine systems.
  • The gateway had to support OPC UA and OPC DA for communication with clients.
  • Data communication had to be stable and robust.


  • NAONWORKS used Softing's OPC UA SDKs to develop the new CEREBRO-DD gateway. 
  • The new gateway supports various industrial protocols such as OPC UA, OPC DA, ODBC, MQTT, Modbus RTU/TCP, Siemens S7, Mitsubishi, LS Electric, RTSP, etc.
  • Individualized access control and configuration rights, user authentication and data encryption are ensured.
  • Physical separation between office and production networks is seamlessly integrated.


  • Physical uni-direction through hardware-based network separation.
  • Zero risk communication through non-routable unidirectional protocol.
  • Enhanced security ensured by encryption module.
  • Short time-to-market guaranteed with Softing's OPC UA SDKs.

Softing Inc.