Free PLC Training Resources That Are Actually Worth Your Time (2026)

Searching free plc courses online with certificate or free plc training will bury you in two kinds of content: high-quality free material from people who know what they're doing, and lead-generation funnels pretending to be free courses. This post is a curated, tested list of the first category and a honest filter for the second.

If you have zero budget and plenty of time, you can learn real PLC programming for free in 2026. It takes more self-discipline than a paid course, but the material exists. This post tells you where.

Five genuinely-free sources worth your time

1. YouTube channels

• RealPars — the gold standard for free PLC video. Hundreds of videos, consistent quality, working engineers behind the camera. Start with their "PLC Fundamentals" playlist.
• LearnChannel-TV — vendor-neutral, beginner-focused, excellent pacing. Subscribe.
• Controls & Engineering — solid intermediate material, especially on scan cycle and ladder patterns.
• Mitsubishi Factory Automation, Omron Industrial Automation, Rockwell Automation — official vendor channels. Quality varies; best for product-specific orientation.

Filter: check the upload date. Anything before 2022 is likely out of date in terms of IDE chrome (TIA Portal and Studio 5000 iterate yearly). Fundamentals don't change.

2. Vendor free tiers and academies

• Inductive Automation's University of Ignition — free, vendor-issued, genuinely respected in the Ignition ecosystem. Complete the Gold Certification track for a credential recruiters recognise.
• Rockwell Learning Services — some free content, much paid. The free stuff is solid orientation.
• Siemens SIOS (Industry Online Support) — official PDFs, videos, and a small free course selection. Searchable.
• AutomationDirect — free online training around Productivity and Do-more PLCs. Vendor-specific, which is fine if you're targeting that ecosystem.
• TIA Portal V18/V19 Basic trial — 21 days, enough for the first-program tutorial.
• Studio 5000 Mini edition — free, but limited to MicroLogix-class hardware.

3. Our free tier

• Two scenarios (Traffic Light, Motor Start/Stop)
• Three lessons (PLC Fundamentals, Ladder Logic, Timers & Counters)
• One quiz (Fundamentals)
• Junior interview track preview (first track's first scenario)

No time limit, no credit card. Sign up. The free tier is a real product, not a teaser.

4. Open-source tools

• OpenPLC Runtime + Editor — the best open-source PLC runtime. Deploys to Raspberry Pi, Arduino, Linux. Free, forever.
• Beremiz — OpenPLC's predecessor, still maintained independently.
• MatIEC — the IEC 61131-3 compiler underneath OpenPLC.

Our OpenPLC comparison post has the detail on when to use it.

5. Community forums

• plctalk.net — long-running PLC forum, active helpful community. If you're stuck, search first, ask second.
• reddit.com/r/PLC — active sub, mix of beginners and working engineers.
• Automation.com forums — slower but higher signal for specialist topics.
• Stack Overflow — occasional PLC questions, mostly IEC syntax.

How to filter free content quickly

Five questions to ask of any free course before investing hours:

1. Does it force you to write code? Watching doesn't build skill. If the course has no hands-on component, it's orientation material, not training.
2. Is the content from 2022 or later? PLC fundamentals are timeless, but IDE tooling isn't. Outdated screenshots make newer students lose patience.
3. Does it end in a graded assessment? A certificate that says "completed" means you clicked Next 100 times. A certificate that says "passed 40 scenarios" means something.
4. Is the creator a working engineer? Check their LinkedIn. Funnel-marketer content is polished and superficial; engineer-created content is scrappy and correct.
5. Can you verify the certificate? A credential with a public verification URL beats a PDF nobody can check.

Courses that miss three of those five aren't necessarily bad — they may still be useful supplements — but they're not a primary learning path.

A completely free 12-week stack

If your budget is genuinely zero, here's a 12-week path:

• Weeks 1–4: RealPars PLC Fundamentals playlist + our free tier (2 scenarios). Four weeks, two passing programs, a quiz score, fluent scan-cycle thinking.
• Weeks 5–8: TIA Portal V18 21-day trial + Siemens SIOS Getting Started PDF. Four weeks to write an S7-1200 project in Siemens dialect. Hits on the TIA IDE specifically.
• Weeks 9–10: University of Ignition free track. Two weeks for SCADA/HMI fundamentals and a free Ignition Core certification.
• Weeks 11–12: OpenPLC Editor + a USD 50 Raspberry Pi (this is where the stack breaks "completely free" — you need hardware or equivalent). Deploy one of your earlier programs to real I/O.

Total cost: USD 0 software + USD 50 for a Pi. Total output: two passing browser scenarios, one TIA Portal project, one Ignition certification, one Pi running your code with real sensors.

That's a portfolio worth showing to hiring managers.

When free stops being enough

Three specific moments:

1. When you want graded feedback on 40+ scenarios. Our free tier gives you two; the Basic plan at USD 99/year unlocks all 40.
2. When you need interview-specific prep with certificates. Our Pro plan at USD 249/year is the shortest path.
3. When your target employer requires a specific vendor cert. Rockwell CCP or Siemens ST-PRO — paid classroom programmes.

Until one of those is true, free resources will keep you moving.

Paid courses that are NOT worth it

• Udemy "Complete PLC Bootcamp 2026" listings from unknown instructors. Almost always rehashed older content. Certificates have near-zero signal.
• Facebook-ad "PLC Master Class" offerings. High-pressure sales, low educational content.
• Coursera specialisations without graded assessments. Video-heavy, assessment-light. Free trial is fine; subscription isn't.
• Any course asking for USD 500+ without real grading. If it's not graded, it's not training at that price point.

FAQ

Is free PLC training as good as paid?

For fundamentals: yes, the free stack above gets you surprisingly far. For graded feedback, interview prep, and structured curriculum: paid is faster and more efficient.

Can I get a free PLC certificate?

Yes. University of Ignition's certifications are free, respected, and verifiable. Many vendors (Rockwell, Siemens, AutomationDirect) offer free introductory certificates. Be skeptical of Udemy-style certificates that mainly signal attendance.

Is Udemy good for PLC training?

Rarely. Quality is wildly variable and certificates carry little weight with hiring managers. Use Udemy for specific-topic reference, not as a primary course.

What's the best free PLC simulator?

Our free tier for curriculum-based learning, OpenPLC for tinker-and-deploy work. Use both. See our OpenPLC comparison post.

How long does free PLC training take?

12 weeks at 8 hours/week, following the stack above. The same time as a paid structured course; slightly more self-discipline required.

Where to start

1. Today: subscribe to RealPars on YouTube, sign up for our free tier.
2. Week 1: watch RealPars PLC Fundamentals playlist + complete Traffic Light in our simulator.
3. Week 4: decide whether you want paid graded feedback. If yes, upgrade to Basic. If no, continue with the free stack.

The only wrong answer is not starting. Everything here is free; the excuse list is empty.