Piston Pre-Assembly Reprogramming
PLC Software Re-Engineering at Scania
Scania is a world-leading provider of transport solutions committed to a better tomorrow.
Scania
Södertalje
Challenge
Unstable Automation
The piston pre-assembly system caused repeated disruptions during production ramp-up. Previous suppliers were unable to deliver a stable and maintainable solution, leaving Scania with a system that was hard to diagnose, slow to recover, and unsuitable for long-term improvement.

Solution
Complete PLC Software Re-Engineering
Multiply led a full PLC software recovery program together with Scania’s cross-functional team. The existing automation system was reverse-engineered, and new PLC software was developed from the ground up using a standardized, transparent, and maintainable architecture aligned with Scania’s production standards.
Implementation & Execution
Implementation & Execution
Recruited specialist competencies to recover the project
Reverse-engineered the legacy control system
Rebuilt PLC software from scratch
Delivered a Digital Twin for offline commissioning and virtual testing
Improved communication, reliability, and fault recovery
Transferred knowledge to Production and Maintenance teams
Result
Stable and Future-Ready Production System
The project reduced troubleshooting complexity, improved downtime recovery, strengthened internal automation capability, and created a future-ready platform for continuous improvement and product evolution. Multiply successfully delivered a solution where previous suppliers had been unable to meet the project objectives.

Future Outlook
Long-Term Automation Sustainability
With a standardized PLC architecture, Digital Twin capability, and improved knowledge transfer, Scania gained a more maintainable, reliable, and scalable automation platform for future production needs.

Łukasz Motylewski
Industrial Automation project manager