We provide servicing for control systems based on Siemens Simatic controllers – both, for already withdrawn Simatic S5 series controllers, and for the latest systems based on S7 1500 and PCS. We have the necessary technical facilities for full analysis and diagnostics, followed by repair, where we provide Siemens S7 and Siemens S5 service and help our customers to properly implement machinery and equipment while maintaining full, existing functionality.

In our work we are able to solve any problem in the field of Siemens Simatic control systems – as one of the few we also support Simatic S5 controllers while suggesting migration to the new Simatic S7 control system. We also deal with the implementation of safety functions directly in Simatic programmable controllers, as defined in the EN ISO 13849 standard. With our help, you will take care of uninterrupted work in your company, as well as the efficient performance of your employees.

As part of Siemens S5 and S7 service, we perform:

  • Fault localization and troubleshooting;
  • software modification;
  • machine configuration analysis;
  • diagnosis of input/output cards;
  • replacement of damaged components;
  • securing and restarting the software.


In addition, we are happy to share advice and give suggestions on configuration, as well as how to use the equipment.


Migration in our understanding – essentially means the replacement of control systems. It is difficult to say whether the word “migration” is the right one in this context, but it has become accepted and is used in the industrial automation industry.

Migration from S5 to S7 means replacing the old type of control based on S5 series controllers with a new control system based on S7 series controllers (currently S7-1200 and S7-1500 series). The key point of the migration is to maintain the full functionality of the old system in the new one, very often the customers also implement additional options (expanded diagnostics, communication with superordinate systems, etc.).

A brief historical overview

Siemens SIMATIC® S5 controllers were introduced to the market in 1979. Over the years they have become very popular, enabling the implementation of not only simple applications, but also advanced and complex control systems.

The 1990s was a rapid development of information technology, both in terms of software and hardware. Siemens followed this development with the introduction of the SIMATIC® S7 controller series, whose tool software was now available on the Windows® platform.

Siemens S7-1200 and S7-1500 controllers were introduced a few years ago. These units are very efficient, have advanced diagnostic options and allow for easy data exchange with superordinate systems, among others via built-in OPC UA servers. From the beginning, these controllers are accompanied by the new system software TIA Portal. Its greatest advantage is the integration within a single platform of tools enabling programming of PLCs, HMI panels and drives in both standard and safety versions.


Control systems – like all industrial equipment – are subject to intensive operation, which results in an increased probability of failure in them. Therefore, it is extremely important to perform migration from S5 to S7.

In addition, the S5 series is withdrawn from sale, and support for it is completely disappearing – so both knowledge and spare parts, especially specialized cards (communication, counters, cams, etc.) will be increasingly difficult to find. This is extremely important information – as their prices are often several times higher than new equivalents.

In our professional practice, we have encountered situations where the cost of repairing an old control system, based on SIMATIC® S5 – exceeded the cost of migration, which was not planned and carried out early enough.

Why is it worth migrating using the services of INEE Industry?

When performing the migration, various aspects must be taken into account It’s not a straightforward process of removing the old controller and install a new one in its place. In the initial stage, a new control system must be selected, then the existing software needs to be migrated, and finally, some code sections that cannot be migrated using migration tools must be rewritten. This issue arises whenever specialized cards, older HMI panels, etc., are being migrated. In view of the above, it is necessary:

INEE Industry has all the above-mentioned attributes. In addition, several engineers from our team worked in the Maintenance departments, which allows us to better plan the entire migration process and minimize the time needed to carry it out.

We specialize in Siemens solutions

As a confirmation of our comprehensive, specialist knowledge of individual industries and applied solutions, we received the Siemens Solution Partner certificate