Siemens TIA Portal, control system retrofits and commissioning – prepared remotely, delivered on site in planned blocks.
I'm David Prybisch, an automation engineer based in Stadtbredimus, Luxembourg. For machine builders, system integrators and plant operators in Switzerland I take on PLC programming in TIA Portal V21, HMI development with WinCC Unified and commissioning. More than 30 international commissioning projects – across most of Europe, in the USA, Tanzania, Malawi and Japan.
Whatever can be prepared is done remotely. I'm on site when the plant needs it.
Program, HMI and documentation are built in my office and tested in simulation before they go onto the plant.
For commissioning, changeovers during shutdowns and project support at the plant, I work in planned blocks – including assignments of several weeks.
Working from Luxembourg adds no effort on your side: I 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.
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.
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.
Working Unified project, alarm concept and operator documentation
A planned on-site block for I/O checks, commissioning and functional acceptance, prepared in simulation.
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
Industrial plant, Germany · on behalf of a machine builder
Wastewater treatment plant, Luxembourg · on behalf of a general contractor
Basel, Zurich and Lucerne with their industrial focus – and the driving time from Stadtbredimus.
Process and plant automation · Water/wastewater
Machine and plant building · Infrastructure
SMEs · Food · Machine building
Most of an automation project happens at the desk: program structure, HMI, functional design specification and testing in simulation. I do this work remotely, in step with your project manager. I come on site for commissioning, for changeovers during planned shutdowns and for project support at the plant – in scheduled blocks, for several weeks if needed. 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.
A common trigger is the S7-300. Siemens discontinued the series on 1 October 2025; spare parts are expected to remain available until 30 September 2033, though Siemens says supply may end sooner. Planning now lets you move to S7-1500 or S7-1200 G2 within a regular shutdown window. In water and wastewater, Switzerland is upgrading around 140 treatment plants against micropollutants by 2040, and the control systems have to grow with them.
The split of work is clear: your electrical contractor handles installation and wiring, I deliver software, HMI and commissioning and coordinate the interfaces with them. Every project closes with complete documentation – functional design specification, test records and a commented TIA project your own automation technicians can keep working with.
Automation engineering for Switzerland from a single source: PLC programming for S7-1500 and S7-1200 (including G2), S7-300 migration and control system retrofits, WinCC Unified and Comfort, safety PLCs, PROFINET, PROFIBUS, IO-Link and AS-i, on-site commissioning and FDS-based documentation – for Basel, Zurich, Lucerne and the rest of Switzerland.
This page summarizes what I offer in Switzerland. Services, references and profile are covered in detail on the main pages.
PLC programming, control system retrofits, HMI, commissioning and documentation – the full list of services.
More than 30 international commissioning projects, plus project work in recycling, waste-to-energy, beverages and machine building.
David Prybisch – automation engineer based in Luxembourg. Background, way of working, tools.
Briefly describe the plant and what needs doing. You'll receive a proposed approach and, after an initial assessment, a fixed-price quote.
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