Such controllers are used in industrial automation: PLC, DCS, SCADA systems, and PACs. Each controller variety has an important role in managing and optimizing the industrial processes, which include manufacturing, water treatment, and energy management. PLC handles discrete tasks, while the DCS system handles continuous-process applications of high complexities, and SCADA systems allow real-time monitoring, whereas PACs represent flexible automation solutions. An understanding of these controllers and their applications can raise efficiency, precision, and safety within your industrial operation.