Siemens TIA Portal, control system retrofits and commissioning – prepared remotely, delivered on site in planned blocks.
Prybisch Automation is an engineering office in Luxembourg for Siemens automation (TIA Portal, WinCC Unified, retrofits). As an external PLC programmer working in Siemens TIA Portal V21, we take on programming, S7-300 migration and commissioning for machine builders, system integrators and plant operators in Basel, Zurich and Lucerne.
Whatever can be prepared is done remotely. We're on site when the plant needs it.
Remote
Program, HMI and documentation are built in our office and tested in simulation before they go onto the plant.
On site
For commissioning, changeovers during shutdowns and project support at the plant, we work in planned blocks – including assignments of several weeks.
Working from Luxembourg adds no effort on your side: we handle the formalities and invoice in CHF (EUR on request).
Clearly scoped services that make a good first step into a project.
Survey of hardware, program and operator panels, resulting in a migration path to S7-1500 or S7-1200 G2 with effort and downtime requirements.
Deliverable
Assessment report with migration concept, hardware list and quote for implementation
When the offline project is missing or no longer matches the plant: upload the program from the running PLC, structure it and add comments.
Deliverable
Commented project with symbols and a functional description of the current state
Replacing Comfort panels or WinCC flexible with WinCC Unified, with a reworked screen structure and alarm system.
Deliverable
Working Unified project, alarm concept and operator documentation
A planned on-site block for I/O checks, commissioning and functional acceptance, prepared in simulation.
Deliverable
Plant in operation, test records and commissioning report
Fixed-price quote after an initial assessment. Scope and dates are agreed in writing beforehand.
Anonymized projects from Luxembourg and Germany – with role, scope and current status.
Recycling company, Luxembourg · engineering partner on behalf of a general contractor
Waste-to-energy plant, Luxembourg · commissioned directly by the operator
Beverage producer, Germany · engineering partner on behalf of a general contractor
Recycling company, Germany · engineering partner on behalf of a general contractor
Wastewater treatment plant, Luxembourg · on behalf of a general contractor
Basel, Zurich and Lucerne with their industrial focus – and the driving time from Stadtbredimus.
We program current-generation Siemens PLCs, S7-1500 and S7-1200 including G2, in TIA Portal V21, along with safety technology over PROFIsafe and drives on PROFINET. Existing plants on S7-300/400 and S5 are part of the work too. Program structure, HMI and functional specification are produced at the desk and tested in simulation before they go onto the plant.
A common trigger is the S7-300: Siemens has discontinued the series, and the spare-parts phase began on 1 October 2025. Spare parts are expected to remain available until around 2033, possibly for a shorter time according to Siemens. Planning now lets you schedule the move to S7-1500 or S7-1200 G2 for a regular shutdown window.
In water and wastewater, the expansion of treatment plants to remove micropollutants adds to this: around 140 plants will be upgraded by 2040, and the draft revision of the Water Protection Act adds around 300 more by 2050. Process and control engineering grows with them.
The division of work is clear: your electrical partner handles installation and wiring, we deliver software, HMI and commissioning and coordinate the interfaces. Every project ends with complete documentation: functional specification, test reports and a commented TIA project your automation engineers can keep working with.
Prybisch Automation is an external engineering office for Siemens S7-1500, S7-1200 and existing S7-300 plants, covering PLC programming, HMI development with WinCC Unified and commissioning. The office is in Stadtbredimus, Luxembourg. Programming and testing are done remotely; we come on site in planned blocks to Basel, Zurich, Lucerne and the rest of Switzerland.
Under a contract for work (Werkvertrag). You commission a defined result, such as a program package, a migration or commissioning, with scope and dates agreed in writing beforehand. We do not offer staff leasing in Switzerland.
Nothing extra. Remote work is handled like any other order, and for on-site assignments we take care of the required advance registration ourselves. We invoice in CHF, or in EUR on request.
Plannable assignments are scheduled with some lead time, because on-site work requires a short advance registration. In case of a fault we start via your remote access, if available, and arrange an on-site visit as quickly as possible. Driving time from Stadtbredimus is about 3 h 45 min to Basel, 4 h 45 min to Zurich and 4 h 50 min to Lucerne.
Yes, in Geneva, Lausanne, Neuchâtel and Fribourg on the same model: prepared remotely, on site in planned blocks. Meetings and commissioning are in German or English; documentation and HMI screens can be delivered in French.
Your electrical partner or panel builder. We deliver software, HMI and commissioning, coordinate the interfaces with them and update the circuit diagrams on request.
Siemens has discontinued the S7-300, and the spare-parts phase began on 1 October 2025. Spare parts are expected to remain available until around 2033, possibly for a shorter time according to Siemens. A retrofit is rarely urgent, but it needs planning and a suitable shutdown window. A retrofit assessment shows the migration path, effort and time required before you decide.
Yes. For a treatment plant in Luxembourg we produced the drive documentation: complete parameter lists for five frequency converters driving pumps and blowers. The control engineering that matters at a treatment plant, such as S7-300 retrofits, fieldbus drives and WinCC Unified HMIs, is work we deliver in waste-to-energy and recycling projects.
After a survey you receive a fixed-price quote for the engineering. On-site commissioning and work whose scope cannot be defined in advance, such as fault analysis, are usually billed on a time-and-materials basis. We invoice in CHF, or in EUR on request.
The projects on this page come from Luxembourg and Germany: recycling, waste-to-energy, the beverage industry and machine building, plus drive documentation for a treatment plant. On top of that come more than 30 international commissioning projects – across most of Europe, in the USA, Tanzania, Malawi and Japan.
This page summarizes what we offer in Switzerland. Services, references and profile are covered in detail on the main pages.
Briefly describe the plant and what needs doing. You'll receive a proposed approach and, after an initial assessment, a fixed-price quote.
