Learn PLCs free

PLC Programming Learning Resources

Comprehensive guides covering essential topics in industrial automation and PLC programming

14
In-Depth Guides

Complete Guide to PLC Programming: Languages, Concepts, and Best Practices

A comprehensive guide to PLC programming languages, fundamental concepts, and industry best practices for both beginners and experienced programmers.

Read More

Complete PLC Software Comparison: Tools for Every Skill Level and Budget

Comprehensive comparison of PLC programming software and tools for beginners, professionals, and everyone in between.

Read More

PLC Hardware Guide: Siemens, Allen-Bradley, Mitsubishi, and More

Comprehensive guide to PLC hardware manufacturers, product lines, and choosing the right PLC for your application.

Read More

Industrial Communication Protocols: Modbus, Profibus, EtherNet/IP, and OPC-UA

Complete guide to industrial communication protocols used in PLC and automation systems.

Read More

PLC Applications: HVAC, Conveyors, Traffic Control, and More

Practical guide to PLC applications across various industries.

Read More

PLC Career Guide: Certifications, Salary Expectations, and Learning Paths

Complete career guide for PLC programming and automation engineering.

Read More

IEC 61131-3 Standard: Complete Guide to Structured Text, Ladder Logic, and Function Blocks

Comprehensive guide to the IEC 61131-3 PLC programming standard.

Read More

Beginner's Guide to PLC Programming: From Zero to First Program

Step-by-step guide for complete beginners to start PLC programming.

Read More

SCADA Systems Explained: Architecture, Components & Software

A definitive guide to SCADA — what it is, how it works, the four-layer architecture, and the software platforms that run modern industrial plants.

Read More

Functional Safety in PLCs: SIL, PL, Fail-Safe & IEC 61508/61511 Explained

A definitive guide to functional safety in PLCs — SIL ratings, PL ratings, fail-safe design philosophy, and the IEC standards that govern them.

Read More

Control System Engineering Documentation: Control Philosophy, FDS, I/O List, P&ID & Loop Diagrams

A definitive guide to the eight engineering documents that define every control system project — Control Philosophy through Site Acceptance Test.

Read More

HMI Programming: Design Principles, Software & High-Performance Best Practices

A definitive guide to HMI programming — from screen design and alarm management to high-performance HMI principles and the leading platforms.

Read More

Process Control: PID, Cascade, Ratio, Override & Feedforward Strategies

A definitive guide to process control strategies — from single-loop PID to advanced cascade, ratio, feedforward and predictive controllers used in real plants.

Read More

IIoT & Industry 4.0: MQTT, Unified Namespace, Edge & Cloud for Manufacturing

A grounded guide to Industrial IoT and Industry 4.0 — separating the substantive technology shifts (MQTT/Sparkplug, Unified Namespace, edge computing) from the marketing fog.

Read More

Ready to Master PLC Programming?

Put it into practice on the free PLC simulator — write ladder logic in your browser, hit Run, and watch real machine scenarios react. 12 guided lessons across 8 PLC dialects.

Learn PLCs Free →

Free account • No credit card • Runs in your browser

Free PLC simulator

Stop reading, start doing

Write ladder logic in your browser, hit Run, and watch real machine scenarios react. 12 guided lessons across 8 PLC dialects — free account, no credit card.

Practice PLCs free →