In recent years, the use of smart devices has brought to the fore control systems with wider and more complex processes instead of old systems. With the Distributed Control System (DSC) architecture, one of the control systems, control, production quality and facility efficiency are controlled throughout the facility. Distributed control system is the automatic control of a facility or industrial process. Instead of a single control function, a special control mechanism is used for each process or machine group. The control mechanism consists of many controllers. In the distributed control system, microcontroller-based processors and PLCs are used for data acquisition and control functions.

Each controller can connect with the operator terminal or other controllers. Sensors and actuators are connected to control devices according to different topologies and a hierarchical order. Different Profibus, HART, ArcNet, Modbus or standard communication protocols are used to communicate between control units.

The main advantage of distributed control systems is that other parts of the plant continue to operate regardless of the fault that occurs in one part. DCS is used in large-scale production facilities where a large number of control loops need to be monitored and controlled. Today, chemical plants, oil and gas industries, food processing plants, nuclear power plants, water management systems, automobile industry, etc. Distributed control systems are used in many industrial areas.