Introduces advanced control techniques including cascade, ratio, cascade-ratio, and feed-forward control. Students interpret control loop drawings, apply troubleshooting methods, and understand computer and microprocessor-based control systems. Compares digital controllers, PLCs, HMIs, DDC, SCADA, and DCS. Explores digital communication protocols (HART, Modbus, Profibus, Foundation Fieldbus, Profinet, Industrial Ethernet). Lab experiments complement theory.