Even after the top layer has been migrated, there is still a risk that OT hardware may fail. Spare parts for heritage systems are no longer available, which can lead to extended shutdowns. Fit for Years ensures that the most critical OT components are replaced with parts that are in the Active Lifecycle, thereby extending the system’s lifecycle.
With Fit for Years, ABB replaces these components while retaining the current controllers and software. This improves plant availability, but the risk of controller failure remains. Additionally, expertise in the software technologies will continue to decline over the coming years. Fit for Years is therefore the next step towards Fit for Life.