PLC faults, communication failures, ground faults, sensor and final-control-element failures, VFD trips, SCADA and historian failures, power problems, and OT cybersecurity incidents — a structured, measurement-first diagnostic workflow for every layer of the automation stack.
A working automation system fails in a small number of recognizable ways, and the engineers who resolve those failures fastest aren't the ones who've memorized every fault code — they're the ones who follow the same disciplined sequence every time: record the actual symptom, form a diagnosis consistent with it, run a specific test that confirms or rules it out, and only then apply the fix the confirmed diagnosis actually calls for. This module walks through real diagnostic scenarios spanning the whole stack this program has built module by module — PLC hardware and program faults, industrial network and communication failures, ground faults and signal integrity, sensor and final-control-element failures, motor and VFD trips, SCADA/HMI/historian failures, power-quality problems, and OT cybersecurity incidents.
Each scenario is chosen because it has at least two plausible causes that present the same visible symptom, and each one is resolved the same way: with a specific measurement or diagnostic step, not an assumption — the exact discipline Module 17's documentation set exists to make repeatable across an entire project team rather than living in one engineer's head.