• Unified Automation GmbH - High Performance OPC UA Client Server SDK/Toolkit
  • Publish date: 06/06/2018
  • Product release date: 06/06/2018
  • Product Version: 1.5.1

High Performance OPC UA Client Server SDK/Toolkit

We have analyzed the issues and bottlenecks of today’s OPC UA implementations. We came to the conclusion that only a complete redesign can solve the issues to improve the performance, improve the scalability, and increase the security of OPC UA. This makes OPC UA usable in smallest devices and thus “IoT Ready”, and furthermore guarantees improved performance for high end servers, which must be able to handle thousands of connections in parallel.

With a new software architecture and new implementation from scratch we have achieved all these goals. Of course, the new implementation is still wire-compatible with the original OPC Foundation Stacks.


To get the best portability the SDK only requires a C99 compatible
C compiler. Typically, GCC is used on embedded systems, but the
SDK compiles also with Clang or MS Visual Studio Compilers.
► C99 Compiler
► RAM (min. 30 KB)
► System Clock (ideally synced via NTP or SNTP)
► TCP/IP Stack

Product certification history

Certified Profiles Embedded 2017 UA Server Profile
Certificate Number 2103CE00D4
Certification Date 03/22/2021
Expiration Date 03/31/2024
CTT Version
Additional Facets Method Server
Standard Event Subscription Server
Address Space Notifier Server
Security Policies SecurityPolicy - Basic128Rsa15
SecurityPolicy - Basic256
SecurityPolicy - Basic256Sha256
SecurityPolicy - Aes128-Sha256-RsaOaep
SecurityPolicy - Aes256-Sha256-RsaPss
User Identity Tokens User Token - User Name Password
User Token - X509 Certificate
Product Name High Performance OPC UA SDK
Certified Product Version 1.5.1
Product MD5 Hash b7aef392c7c5167694e1cc0e81693728
Embedded 2017 UA Server Profile