The freedom of "Open Architecture"

SIMATIC WinCC Open Architecture is designed for applications of large scale and high complexity as well as projects with special requirements on system prerequisites and customized functionality. With SIMATIC WinCC OA, you can build vendor- and platform-independent SCADA systems that are scalable and offer unlimited global access over the web – even over native iOS and Android user interfaces or browser-based clients. Due to the scalability and flexibility it is the perfect choice to create solutions including centralized control stations and geographically widely distributed systems.

"Visualization made easy" - Technical product description WinCC OA V3.18

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Hybrid Event, Nov 23 - Nov 25

SPS 2021 in Nuremberg – There for you

Come to our booth at the SPS in Nuremberg from November 23 to 25, 2021, where you can network with others in person, check out exhibits, and find solutions to problems. All of this will take place, of course, in line with a safety and hygiene concept that complies with the latest regulations.


If you can’t attend in person, simply participate online and take a virtual tour of our 3D showroom, attend lectures and presentations, and talk to our experts.


System overview

SIMATIC WinCC Open Architecture - The SCADA system without limits

  • Supports Windows and Linux
  • Use of virtual machines
  • Mix of operating systems in the project
  •  Native clients for all supported OS
  •  Native clients (apps) for mobile devices
  • Wide range of supported protocols
  • Supports most of the common drivers
  • Integration of customer´s drivers
  • Prepared interfaces (APIs)
  • Prepared importers
  • Single-Server-Systems
  • Fast growing solutions
  • Geographically distributed systems
  • Complex and customized systems
  • Global access via Webserver connection
  • Focussed on secure communication
  • Timezone independency for global distribution
  • Allows measurements down to 1 ms
  • Supports all written characters based on UTF8
  • Create reusable object libraries
  • Involve existing projects or third-party applications
  • Integration of subsystems
  • Hierarchical architectures
  • Remote connections and configuration
  • Central supervisory without loss of local control
  • Server license size based on external connections (I/O)
  • Models based on active connections at the same time
  • Centralized licensing based on Server license
  • Consistent license models to enable maintenance service
  • License containers open up to more flexibility
WinCC OA Konfigurator

Get your WinCC OA system configured according to your individual requirements

A highly modular SCADA system with unlimited customizing possibilities?

That looks like the  ideal candidate for an intelligent configurator.
The TIA Selection Tool supports you with smart functions and wizards as well as plausibility checks while planning your system and creates a parts list for your shopping cart at Industry Mall. 

Just try it out for yourself

Start WinCC OA Configurator

Downloads & Support

Further information

All about SIMATIC WinCC Open Architecture at a glance

Support Services

In case of an emergency, Digital Enterprise Services offer you a wide range of services - by phone and online, anytime and anywhere with online support, technical support, the Siemens Industry Service Card and Managed System Services.

Spare Parts Services 

The Spare Parts Services from Digital Enterprise Services are available worldwide and ensure a smooth and fast delivery of spare parts - and thus optimal system availability.

Training Services

Industrial learning for every need with training services, continuously and sustainably. Our experts from SITRAIN and Vizendo Virtual Training Solutions offer the right training for you - classroom trainings, online or virtually.


The direct way to your SIMATIC SCADA contact

You have questions concerning our SIMATIC SCADA systems? You want to discuss your specific challenges with us or are looking for the right project partner? Contact our regional offices – we are looking forward to hearing from you!

Just contact us

Contacts in the region