ICS & OT Fundamentals: PLC, SCADA, HMI, Sensors, Actuators Explained

Industrial Control Systems (ICS) are the backbone of automation in manufacturing, automotive, power grids, oil & gas, utilities, and critical infrastructure. In this video, we break down the core building blocks of OT and ICS systems — from PLCs and SCADA to HMIs, sensors, actuators, and data historians. This video is Section 2 from my complete OT Cyber Security course on Udemy, available in both Hindi and English. You will learn: What ICS and OT really mean How PLCs execute logic in industrial processes How SCADA systems monitor and control operations The role of HMI in operator interactions Sensors and actuators in the physical process layer Why understanding ICS components is critical for OT cybersecurity Real-world examples from modern industrial environments If you want hands-on labs, ICS attack demos, OT threat modeling, governance workflows, and real-world industrial security scenarios, you can access the complete course here: 👉 Enroll in the Full OT Cyber Security Course https://www.udemy.com/course/ot-secur... Subscribe for more content on OT, ICS, and cybersecurity topics. #ics #otsecurity #SCADA #plc #hmi #industrialsecurity #ICSecurity #criticalinfrastructure #cybersecurity #operationaltechnology