Bath Engineers design process control systems for processes to achieve a production level of consistency, economy and safety which could not be achieved purely by human manual control. It is implemented widely in industries such as oil refining, pulp and paper manufacturing, chemical processing, power generating, and water and waste water plants.
There is a wide range of size, type and complexity of process control systems, but they enable a small number of operators to manage complex processes to a high degree of consistency. The development of large automatic process control systems was instrumental in enabling the design of large high volume and complex processes, which could not be otherwise economically or safely operated.
With the coming of electronic processors and graphic displays it became possible to communicate with discrete controllers hosted on a network of input/output racks with their own control processors and utilize computer-based algorithms for control purposes. These discrete controllers could be distributed around a plant and communicate with the graphic displays in a control room or control rooms.