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PLC Programming in Zurich

PLC engineering for machine and plant building, infrastructure and energy in Greater Zurich

Greater Zurich is home to many machine and plant builders working with Siemens PLCs, as well as operators of infrastructure and energy facilities. I take on PLC programming, safety technology, HMI and commissioning as clearly defined work packages under contract, delivered to your standards. Zurich is about 4 h 45 min by car from my base in Stadtbredimus.

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Drive from Stadtbredimus
approx. 4 h 45 min
International commissioning projects
30+
S7-1500 · Safety PLCs
TIA V21
Invoicing in Swiss francs
CHF
References

References from comparable projects

Sorting plant extension with safety technology

Recycling company, Luxembourg · engineering partner on behalf of a general contractor

Starting point
Existing drives with their own black-box control were to be replaced by fully integrated drives, and maintenance doors secured with interlocks. During the project, the planned F-CPU was discontinued.
Scope
Migration of the existing project from TIA Portal V19 to V21 with the successor F-CPU, drive integration with PROFIsafe/STO and IO-Link, four interlocks in the safety program with documentation against the standards. Commissioning during the planned shutdown.
Result
In operation and closed in July 2026. Fixed-price contract, additional work ordered as separate change orders.

Infrastructure control with WinCC Unified

Recycling company, Germany · engineering partner on behalf of a general contractor

Starting point
As part of expanding the low-voltage distribution and building services, lighting, heating, ventilation, fire-water and well supply were to run on one shared controller with an operator panel.
Scope
S7-1200 G2 in TIA Portal V21 with a Unified Basic panel, trends and long-term archive. Functional specification kept up to date, each stage tested in simulation before going on site.
Result
Ongoing (as of October 2026): lighting, temperature monitoring, ceiling fans and the fire-water section are in operation.
About the region

Automation engineering in Zurich

For machine and plant builders, engineering work tends to come in bursts: several projects reach commissioning at once, or an end customer orders an extension. I take on defined work packages under contract – program sections, safety technology, HMI – and deliver them to your standards and block libraries. Programming and testing happen remotely; for commissioning I come on site in planned blocks, including multi-week stays.

For infrastructure and energy facilities, availability comes first: distribution boards, pumps, heating and ventilation run on controllers that are extended over the years. I run such projects with a continuously updated functional specification and test every stage in simulation before it goes onto the plant.

Your electrical contractor or panel builder handles installation and wiring; I deliver software, HMI and commissioning. Existing plants are migrated to S7-1500: the S7-300 has been discontinued since 1 October 2025, and spare parts are expected to remain available until 30 September 2033, though Siemens says supply may end sooner.

Freelance TIA Portal engineering for Zurich, Winterthur, Baden and Uster: PLC programming for S7-1500 and S7-1200 G2, safety PLCs with PROFIsafe, WinCC Unified, PROFINET and IO-Link, commissioning at the end customer and FDS-based documentation.

Industries in Greater Zurich

  • Machine and plant building
  • System integration and panel building
  • Infrastructure and energy
  • Recycling and waste management

Service area

  • Zurich
  • Winterthur
  • Uster
  • Dübendorf
  • Schlieren
  • Dietikon
  • Wetzikon
  • Baden
  • Kloten
  • Bülach
Switzerland

Other regions in Switzerland

BSL·Northwestern Switzerland

Basel

Process and plant automation · Water/wastewater

  • Chemical and life-science suppliers
  • Water/wastewater incl. industrial treatment plants
  • Machine building
Drive time
approx. 3 h 45 min from Stadtbredimus
View region
LUC·Central Switzerland

Lucerne

SMEs · Food · Machine building

  • Mid-sized manufacturers
  • Food and beverage
  • Machine building
Drive time
approx. 4 h 50 min from Stadtbredimus
View region
FAQ

Frequently asked questions

Yes. I adopt your block libraries, naming conventions and HMI templates and deliver program sections that fit straight into your project. Where no standard exists, I propose a structure and document it.

Yes: safety programs on S7-1500F and ET 200SP, drives with PROFIsafe and STO, guard-door interlocks. I document the implementation against EN ISO 13849-1 and EN ISO 14119; the risk assessment remains with the machine manufacturer.

Yes, including assignments of several weeks, working with your team or the electrical contractor on site. More than 30 international commissioning projects – across most of Europe, in the USA, Tanzania, Malawi and Japan.

Yes. A current example is the infrastructure control system of a recycling company in Germany: lighting, heating, ventilation and fire water on an S7-1200 G2 with a WinCC Unified panel, commissioned in stages.

Driving time from Stadtbredimus is about 4 h 45 min. Programming and testing happen remotely; planned on-site assignments are scheduled with some lead time, because they require a short advance notification. In a breakdown, we start via your remote access where available and arrange an on-site visit as soon as possible.

Your electrical contractor or panel builder. I deliver software, HMI and commissioning and coordinate the interfaces with them.

Each defined work package gets a fixed-price quote after an initial assessment; fault analysis is billed on a time basis. I handle the formalities and invoice in CHF, or EUR on request.
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More background

This page covers Greater Zurich. Services, references and profile are described in detail on the main pages.

Services

PLC programming, control system retrofits, HMI, commissioning and documentation – the full list of services.

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References

More than 30 international commissioning projects, plus project work in recycling, waste-to-energy, beverages and machine building.

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About me

David Prybisch – automation engineer based in Luxembourg. Background, way of working, tools.

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Switzerland overview

All three regions at a glance – with service models, starter packages and project examples.

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Project in Greater Zurich?

Briefly describe the work package and timeline. You'll receive a proposed approach and, for defined packages, a fixed-price quote.

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