Start Here: Fundamentals of Industrial Automation

Learn the foundations of industrial automation in 16 short lessons.
Designed for students who know basic math and physics, and want to understand real machines, signals, PLCs, and VFDs.

Your 16 Core Lessons

Each lesson comes with a simple diagram to draw and a 10-minute exercise. Start from Lesson 1 and work your way down.

Electricity & Signals (DC + AC)

Voltage, current, resistance, AC vs DC, and how power really works in circuits.

Safe Work Basics

Shock vs arc-flash, SELV/PELV, grounding, bonding, and why LOTO isn’t optional.

Ubiquitous Circuits

Voltage dividers, pull-ups, relays, and the tiny details that make inputs behave.

Digital Logic, Human-Readable

0/1, AND/OR/NOT, and latching circuits—the bridge between relays and PLC logic.

Analog Basics & Scaling

4–20 mA vs 0–10 V, engineering ranges, and why scaling matters more than you think.

Sensors & Instrumentation

Prox, limit, encoders, transmitters, PNP vs NPN, and proper DI/AI wiring.

Actuators & Power Devices

Relays, contactors, valves, and how to get clean RUN and FAULT feedbacks into your PLC.

Motors & VFDs (101)

Induction motor basics, nameplates, torque vs speed, and what a VFD actually controls.

Mechanical Intuition

Load types, inertia, friction, and why accel/decel ramps make or break stability.

Control Intuition (PID without pain)

SP, PV, error, P/I/D roles, and how to reason about stability without fear.

Drawings & Tag Discipline

Reading wiring diagrams, I/O lists, P&IDs, and naming things so others understand them

PLC & Ladder Basics

Scan cycle, contacts, coils, timers, counters, and safe run-permission chains.

HMI/SCADA Habits

Calm screens, clear alarms, trends, Auto/Hand, and making operators’ lives easier.

Industrial Networks (Essentials)

IPs, subnets, Modbus TCP vs EtherNet/IP, and basic managed switch hygiene.

Measurement & Units Discipline

SI units, accuracy vs precision, and how to think about error and calibration.

Standards & “Good Citizen” Rules

IEC/UL overview, color codes, documentation, and version control for real projects.