Your step into the future - Migration made easy

Modernization, retrofit and migration

Higher productivity, efficiency and availability through modernization

To stay competitive, machines and facilities have to be continually adapted to the latest requirements. If your automation system is no longer up to date, it is time for a modernization.

Flyer: "Time for something new?"

Download PDF

TIA Selection Tool

Even faster from "Old" to "New" thanks to TIA Selection Tool 

The migration wizard of the TIA Selection Tool allows just with some clicks to migrate the configurations of the SIMATIC S7-300 and S7-400 to S7-1500,

the SIMATIC ET 200S to ET 200SP and the ET 200M to ET 200MP systems.


Your migration project - Challenge and opportunity

Each modernization has its own challenges

What is your individual goal:

  • Faster return on investment (ROI),
  • lower total cost of ownership (TCO)
  • higher availability, or shorter downtimes

No matter what your starting point is – an imminent generational change in the automation, a partial modernization, also from non-Siemens systems, or the modernization of a complete plant – Siemens offers you individual migration support to help you to reach your individual goals: from individual functions up to all-round service.

Generating additional benefits by modernization

Get yourself convinced by a selection of the most essential benefits.

It goes without saying that you can expect more performance and functionality of each new generation of devices or software packages. In addition automation technology has developed towards more integration and usage of synergies. TIA Portal e.g. is such an all-in-one-solution, where SIMATIC controllers, SIMATIC HMI and SINAMICS Drives are enginnered in one environment.

Rules and regulations change, new threats appear in the area of cybersecurity,  know-how has to be protected. Meeting new requirements often causes large efforts when employing legacy systems and sometimes it isn't possible at all. Better rely on state-of-the-art systems, that anticipate technological advancements.

Older plants and machines are more error-prone, this is quite a common insight, yet  new plants not only offer a higher grade of availability as they are new: Integrated diagnostics and more detailed error messaging, simulation and virtual commissioning eliminate error sources before they have any influence on plant availability.


Last but not least it's the competition that enforces modernization because producing on a more efficient cost-level is one of the major competitive advantages and the key to increased profitability.


From "Legacy-" to "Target-system"

Which are the current product generations and which predecessor systems have been substituted by them - a short overview of technological progress.

With efficient engineering, modernization is very easy

As your partner, we make it easy for you to benefit from technological progress, use ground-breaking integrated engineering and, thanks to our innovative generation of controllers and the brilliant HMI control panels, achieve a major performance advantage.

SIMATIC STEP 7 V5.x -> SIMATIC STEP 7 Professional (TIA Portal)

Your existing STEP 7 projects can be easily integrated into the Totally Integrated Automation Portal (TIA Portal) with our available tools. In addition to continued use of the proven SIMATIC S7-300 and S7-400, you can transfer the automation project to the latest controller generation.



  • Significant savings in engineering through global libraries, the modular code structure and intelligent drag-and-drop
  • Faster commissioning by utilizing offline simulation and the integration of all components in one project
  • High savings in operation due to reduced downtimes and faster fault identification thanks to the integrated system diagnostics


SIMATIC WinCC flexible -> SIMATIC WinCC (TIA Portal)


You can use SIMATIC WinCC (TIA Portal) to switch existing HMI projects easily, quickly and cost-efficiently to more powerful components and more efficient solutions. You receive extensive support, for example when migrating from WinCC flexible to TIA Portal or with the transition from the Multi Panels to the innovative successor system, the Comfort Panel Generation. 

We assist you in a variety of ways in our online support for example:

  • Migration Guideline
  • System Manual, Operating Manual
  • HMI Panel Comparison
  • Compatibility Tools
  • Application Examples


"Take control of the future" with the latest SIMATIC S7 PLCs 

The Basic Controller S7-1200 and the Advanced Controller S7-1500 are the new controller generation. In combination with the TIA Portal they offer optimum usability for applications in machine and plant automation.

SIMATIC S5 and SIMATIC S7-300 -> SIMATIC to S7-1500

SIMATIC S7-1500 the innovative, powerful automation system is used worldwide for factory automation.


There are good reasons for modernization:

  • SIMATIC S5 controllers have been in use for a long time. Spare part supply ended in September 2020 and the repair service is not available any more.

  • SIMATIC S7-300 including the distributed controller of ET 200S (IM 151-7, IM 151-8) and ET 200pro (IM 154-8), as well as SIMATIC S7-400 are and remain fully developed, proven controllers. Many new requirements regarding handling and performance can no longer be fully met with the traditional architecture. This has led to the development of the next generation of S7-1500 controllers and the distributed controllers of ET 200 SP and ET 200pro with improved system properties. The basic SIMATIC properties have been retained for compatibility.


With SIMATIC S7-1500, you are making a decision in favor of cutting-edge system architecture in different variations.  This architecture includes integrated technology functions and motion control, integrated trace possibilities, integrated safety, integrated security concept, and integrated system diagnostics. STEP 7 Professional in the TIA Portal is the common engineering platform for all SIMATIC S7-300, S7-400, S7-1200 and S7-1500 controllers. Together with the SIMATIC HMI Basic and Comfort Panels, the associated WinCC and the SINAMICS drives including Startdrive, you achieve an efficient, integrated solution.

SIMATIC WinAC RTX -> SIMATIC S7-1500 Software Controller

The S7-1500 Software Controller is revolutionizing PC-based automation by means of a complete decoupling of the PC-based controller from the  operating system (Windows or Linux). A basic new architecture exclusively assigns the existing PC resources such as processor cores, interfaces, as well as work memory and mass memory to the S7-1500 Software Controller. This enables the operating system to be restarted even when the controller is running. High-level language applications like C++ can be integrated into the S7-1500 Software Controller.

  • The S7-1500 Software Controller is available for the SIMATIC IPCs as well as the SIMATIC ET 200SP Open Controller

  • The functional scope of the S7-1500 Software Controller comprises all functions of the S7-1500 as well as integration of PC applications. These include know-how and copy protection, integrated trace, as well as standard motion functions.


The SIMATIC S7-1500 Software Controller offers significantly increased system availability. The innovative and unique architecture enables you to implement the control of your machine even for PC-based automation fully independently from the operating system. Nevertheless, integrating PC applications into the controller is child’s play. Existing algorithms in high-level language can be easily incorporated and an extensive range of ready-to-use applications is available  

SIMATIC ET 200M and ET 200S -> SIMATIC ET 200MP and ET 200SP

The centralized and distributed IOs of the SIMATIC S7-300 system generation had been in use for a long time. Current systems SIMATIC ET 200MP and ET 200SP are the successors with  advanced features and new system architecture ready for replacing SIMATIC ET 200M and ET 200S.

  • SIMATIC ET 200M will be available on a regular basis until 2023, that means spare parts are available until 2033.
  • SIMATIC ET 200S is not recommended for new automation projects any more, as SIMATIC ET 200SP offers more performance with a smaller footprint and covers all application areas of ET 200S. Spare parts are available until the end of 2030.


SIMATIC ET 200MP for use with SIMATIC S7-1500 in control cabinets and the compact ET 200SP distributed IO are the current IO-systems for all factory automation tasks whether standard or failsafe.

SIMATIC HMI - Efficient to a new level

Compared to older generations, new HMI devices always offer the latest display technology for improved display with more colors and higher resolution. Powerful processors and more RAM make for faster processing of larger amounts of data and let you implement applications with more functionality.

But SIMATIC HMI offers even more!


Efficient switch to new HMI generations with WinCC in the TIA Portal

The seamless integration of all SIMATIC hardware and software components lets you switch to a new, profitable HMI solution quickly and very efficiently.


Your benefits:

  • Efficient engineering means, for example, the avoidance of multiple entries and errors up front due to the availability of all data – anytime – in a common engineering platform, but also the reuse of proven elements thanks to the comprehensive library concept or the integrated conversion of devices.

  • With styles and designs of SIMATIC WinCC in the TIA Portal, you can give your machine a unique appearance and realize innovative operating concepts with unique user interfaces by means of integrated system functions – also with gestures and multitouch

  • Brilliant HMI devices – from standard to extreme, scalable for diverse requirements and reliable under any conditions with numerous certificates

MICROMASTER migration to SINAMICS G portfolio

From simple applications with voltage-frequency control (V/f control) or complex applications with closed-loop vector control and encoder feedback: for more than 10 years the family of MICROMASTER frequency inverters has  addressed drive applications in the power range extending from 0.12 kW up to 250 kW. Their compact design and application capabilities are characteristic features of the whole MICROMASTER family. Easy handling, extending over erection, commissioning and operation. 

But a little bit more always works!


The innovative and future oriented SINAMICS G120 and SINAMICS G120C families has established as an alternative for quite some time.


The recoding tool of MICROMASTER to SINAMICS order numbers supports you when selecting the optimum SINAMICS products for your existing MICROMASTER application – starting from inverters up to the options.

Services and Trainings

Use the possibilities of Online Support, Migration Services and Training

Your individual migration support

You place significant value on the greatest possible availability of machines and plants and the most efficient usage of your resources. A crucial success factor is reliable support and service from Siemens..


We offer you comprehensive information on the migration to our cutting edge SIMATIC technologies. There are many tools available on the Internet for the most diverse topics and tasks:

  • Documentation: migration and conversion guidelines

  • Hardware: device cross reference (tool or table)

  • Software: integrated and external code converter

  • IO-conversion: IO adapters (S5 / S7-300 to S7-1500)

  • Communication: sample projects

Furthermore, we offer you personal and individual support, exactly tailored to your specific needs:
  • Pre-clarification and check of the core functionalities by your Siemens partner

  • You will find the complete service, from assessment and implementation up to project completion, within the scope of our migration services.



SITRAIN migration training for those familiar with the proven SIMATIC World

The migration training is based on the knowledge of the proven SIMATIC world with the SIMATIC S7-300/400 controllers and the engineering tools SIMATIC STEP 7 V5, WinCC flexible or WinCC V7.

You will learn which new hardware and software functions can make your solutions more profitable and how you can utilize them. As well, you will learn how to migrate your existing solutions to the new SIMATIC S7-1500 controller and to the TIA Portal engineering platform.

This knowledge will enable you to easily migrate your existing solutions quickly and efficiently to the future-proof SIMATIC S7-1500 in the TIA Portal.

Further information

Well informed for your migration project

Useful links and downloads, from overview information up to comparison list on code level, from video tutorial to extensive migration guides- get first hand information for your migration project.

How and where to start, what to keep in mind from planning to realization? Our migration guides cover the key issues relating to plant migration from legacy to target system  

  • Planning plant migration
  • System architecture - and target system
  • Hardware migration
  • Software conversion
  • Overview of the most important recommendations
  • Comparison of components from legacy and target system

No matter if you are looking for compact overview information or practicall tips and tricks, the TIA Portal Tutorial Center and the video series "Automation Tasks" and "Mister Automation" offer useful information.

Retrofit of a packaging line

In order to modernize an outdated packaging system for one of its top-of-the-line products, the well-known coffee producer Dallmayr decided to retrofit its conveyor system. The result was a resounding success and showed the efficiency of the Step 7 converter when migrating to Simatic S7-1500.

Modernizing the paint shop control system of Magna Bohemia in record time


  • Keeping to a tight time schedule and re-commissioning the retrofitted line with full capacity
  • Increasing the customer’s distribution capacity by one-third and extending the entire line’s service life
  • High communication speed, open system architecture and opportunities for expansion