RETROFIT / 01
Live-site Siemens controls modernisation
Siemens PLC · TIA Portal · phased commissioning
Situation
A 25-year-old controls installation supporting critical facility infrastructure required replacement while the site remained operational.
Scope
The existing control architecture and operational constraints were reviewed, modern Siemens PLC hardware was introduced, and the changeover was organised as a controlled phased cutover.
Engineering delivered
- Legacy hardware assessment and I/O planning
- Modern Siemens PLC architecture
- Cutover sequencing and commissioning
- Coordination with site and integration teams
Outcome
The upgraded controls were commissioned with zero unplanned downtime during the changeover.
