Retrofitting Translated from English-Retrofitting refers to the addition of new technology or features to older systems. We have a wide range of different controls that we can fully match to virtually any installation. Our advice is not to wait until the essential components, such as PLCs, I/O systems, servo drives and/or motors, are no longer there. We can work with you to create a plan for an electrical and software overhaul, the retrofit, that will bring the plant back up to date. And…. with a new controller, new features can also be added.