Control networks are systems that manage and regulate the behavior of various devices and processes. They enable communication between different components, allowing for coordinated actions and responses. Commonly used in industries like manufacturing and automation, these networks ensure that machines operate efficiently and safely. These networks can be categorized into different types, such as supervisory control and data acquisition (SCADA) systems and distributed control systems (DCS). Each type serves specific purposes, from monitoring large-scale operations to controlling localized processes. Overall, control networks play a crucial role in enhancing productivity and reliability in various applications.