Software Development Cost
The evolution of a plant often includes the need for new control functions to be more complex and advanced.
In some cases these functions can be integrated directly into the control units (PLC), however their development on an Edge platform is much faster and easier. Infact, the Edge platform takes advantage of advanced programming languages, availables libraries and a greater support for the debug and validation phases.
Furthermore, not intervening directly on the PLC can be essential in case of already operational systems who can’t tolerate the downtime to update the software.
The Edge Computer can "relieve" the control unit from those processes that don’t require too rigid real-time design levels and involve a large amount of data. Because of that, optimizing the size of the components is possible in the design phase.