Distributed control systems (DCS)

A Distributed Control System (DCS) is a sophisticated control architecture used in industrial processes to monitor and manage complex operations. Unlike traditional control systems, which often rely on Programmable Logic Controllers (PLC), a DCS distributes control functions across multiple controllers and locations, ensuring enhanced reliability, scalability, and efficiency. This decentralized approach allows real-time data collection and processing, improving decision-making and operational performance.

A DCS integrates system components such as human-machine interface (HMI), historians, common databases, alarm management, and configuration environment into a unified system. Each control function is assigned to specific nodes, often referred to as controllers or remote terminal units, which are interconnected through a robust communication network. This network facilitates seamless data exchange and coordination among controllers, enabling precise control over industrial processes.