L42
IoT and industrial systems: ICS, DCS and SCADA
Cram this first — memory hook
Industrial Control Systems is the umbrella; Distributed Control System runs the plant; Supervisory Control and Data Acquisition watches and supervises the spread-out sites.
Exam trap
Do not assume a reboot or aggressive scan is a harmless first troubleshooting step for a live industrial controller. A digital change can affect physical safety.
The slide facts
Module 11 pages 20-22 explicitly identify , and . The comparison treats as the umbrella, as facility process control and as supervision across remote locations.
If you have time — extra
Internet of Things () devices include connected cameras, lights and other devices interacting with the world. Operational Technology () monitors or changes physical processes. Industrial Control Systems () is an umbrella for industrial automation/control systems. A Distributed Control System () commonly coordinates processes within a plant or facility. Supervisory Control and Data Acquisition () commonly collects information from and supervises equipment across remote sites. These are useful exam contrasts, not absolute geography rules; real designs overlap. A Programmable Logic Controller () controls machine processes. A Remote Terminal Unit () connects remote field information/control, and the slide names a Master Terminal Unit () in the supervisory role. Availability, predictable timing and physical safety matter alongside confidentiality. The original note IDCS is not a defined term in the deck; is the supported likely match.
Walkthrough
Identify what physical process is controlled, distinguish local control from remote supervision, inventory the devices and dependencies, segment/control access, monitor carefully, and test changes with operations staff before deployment.