Control (APC) refers to the economic process control through control mechanisms. The term Advanced Process Control is subject to constant change, which is related to the task definition, the improved methods of control engineering and the adaptation to
technical feasibility. There arecontrol engineering processes that can be solved with simple logics, while others require sophisticated algorithms
. Advanced control engineering uses methods of preventive control and can adjust control loops in such a way that the processes are controlled optimally and economically.