Free PLC Training — What Is Actually Free in 2026

You searched "free plc training" because PLC courses in South Africa cost serious money and you want to know what you can learn before spending any. Fair question, and it has a real answer: you can get from zero to writing working ladder logic (contacts, coils, seal-in circuits, your first graded exercises) entirely free, and this page maps exactly where free gets you and where every free option stops.

Open the free tier →

The short answer

• Genuinely free: our simulator's free tier (unlimited sandbox plus the first six graded lessons), vendor e-learning intro modules from Siemens and Rockwell, and YouTube channels run by working engineers.
• Free gets you to "I can write a basic rung and I know whether this field suits me." That's real value, and it costs nothing.
• Free does not get you to job-ready. Every free option stops before graded fault-finding practice, structured sequence work and portfolio evidence.
• Free certificates carry close to zero weight with SA employers. What carries weight is logic you can write in front of them.
• The paid step after free starts at $12/month (about R220) — not R15 000 for a classroom week.

One thing said plainly before anything else, because plenty of sites fudge it: our simulator is paid software. It has a free tier that is genuinely free, with no card, no trial countdown and no expiry, but the full product costs money and we'll tell you exactly where that line sits. If a training product won't tell you where its free part ends, that's your first warning sign.

What's genuinely free on the simulator

The free tier has two parts, and neither is a teaser that dies after fourteen days.

The sandbox, unlimited. An open ladder-logic canvas in your browser. You place contacts, coils, timers and counters on rungs, hit run, and watch the bits change state on a live scan cycle. The engine follows the IEC 61131-3 rung-evaluation semantics that real Siemens and Allen-Bradley CPUs implement (the standard is published at iec.ch), so the habits you build transfer to hardware. No installation, no licence file, works on a basic laptop. You can use the sandbox every day for a year and never pay us anything.

The first six curriculum lessons, graded. The beginner exercises with automatic grading: your program runs against test scenarios and the grader tells you which ones failed and why. The sequence starts where every PLC career starts — the start-stop seal-in circuit, the rung you'll be asked to draw on a whiteboard in every interview you ever sit. By the end of the six lessons you've written contacts, coils, a seal-in, and basic timer logic, and you've been failed by a grader and had to figure out why. That last part matters more than it sounds. Being marked wrong by a machine that shows you the failing scenario is the closest free thing to standing at a faulted panel.

What the free tier is for, honestly: deciding. A weekend on the sandbox and the first lessons tells you whether this work suits your head — whether the scan-cycle way of thinking clicks, whether fault-finding energises or drains you — before you spend a rand on any course, ours or anyone's. Some people discover they love it. Some discover they'd rather do anything else. Both outcomes are worth R0.

The rest of the free map

We're not the only free option and it would be dishonest to pretend otherwise. Here's the full landscape, category by category, with what each genuinely delivers and where each stops.

Vendor e-learning portals. Siemens publishes free e-learning modules and a deep library of free application examples and manuals through support.industry.siemens.com; Rockwell has free intro courses on its training portal. The strength is authority; nobody explains TIA Portal like the people who build it, and the material is current to the shipping software versions. The limits: the free layers are scoped as product familiarisation, they assume you'll eventually buy hardware or paid courses, and there's little to no graded practice. Use them once you've picked a brand, as depth. Where they stop: they teach you the vendor's tools, not the craft of writing and fault-finding logic from scratch.

YouTube. There are working engineers posting genuinely good fault-finding walkthroughs, panel tours and commissioning stories, and that plant context is something no curriculum captures. The catch is structural, not quality: video teaches you to follow logic, not to produce it. You watch a rung being written and it makes perfect sense; a week later you can't reproduce it, because watching and doing are different skills. The algorithm also has no syllabus — it feeds you whatever holds attention, so six months of viewing can leave you with wide, shallow, out-of-order knowledge. Where it stops: the moment you need to write logic yourself and have someone or something tell you it's wrong.

Free-certificate course mills. A whole category of sites offers "free PLC training with certificate": slide decks or short videos, a multiple-choice quiz, a PDF certificate, and usually an upsell to a "premium" certificate with your name in nicer fonts. We won't name names, and to be fair some of the content is a passable introduction. But be clear about what the certificate is: a record that you watched something. SA hiring managers in controls see these weekly and weight them accordingly, which is to say barely at all. Where they stop: at exactly the point where reading about PLCs ends and doing PLC work begins.

Free trials of paid software. Some PLC software vendors offer time-limited trials of their real engineering environments. Useful later for brand-specific practice, with two catches: heavyweight installs that want a strong Windows machine, and a countdown clock that doesn't care about your learning pace.

A note on what's not in this list: complete free paths to job-ready. We looked. The free options above are all real and all useful, but every one of them stops short of graded, structured, repetitive practice — because that's the part that costs real engineering to build and maintain, so nobody gives it away. Anyone who tells you free training alone made them employable either had plant access through work, or is selling something.

A free weekend that settles the question

If you want a concrete plan rather than a category map, here's how to spend one free weekend deciding whether this field is for you. Saturday morning: open the sandbox and place your first contacts and coils (series for AND, parallel for OR) and run them. Predict each output before you hit run; being wrong here is the lesson. Saturday afternoon: start the graded lessons and work through the first three. Sunday: build the start-stop seal-in until you can do it from a blank canvas without looking anything up, then break it deliberately and watch how each fault shows up in the live bit states: wrong stop-contact type, missing seal-in branch.

Total cost: nothing. By Sunday evening you'll know one of two things. Either the scan-cycle way of thinking clicked and you caught yourself wanting one more exercise — in which case the field is probably for you, and the next question is just pacing and budget. Or the whole thing felt like homework, in which case you've saved yourself somewhere between R1 300 and R17 000 in course fees finding out, and that's the free tier doing exactly its job. We'd rather you discover a mismatch on our free tier than on anyone's paid invoice.

Where free ends and Basic begins

Here's the line, drawn as precisely as we can draw it.

Free ends after the first six lessons. At that point you can write a seal-in rung, use a basic timer, and read simple ladder. What you don't yet have: counters in anger, sequence control, analog scaling, structured fault-finding under a grader, the wiring track, sensor school, or anything you can show a hiring manager.

Basic, at $12 a month (about R220), opens the full curriculum: the complete graded lesson path and the wiring track (PNP/NPN, sourcing/sinking, 4-20 mA loops, all interactive). Pro at $29 adds the sensor school with its library of industrial sensors, fault scenarios and rung patterns, plus the ISA-aligned cert packs and the portfolio export. The honest framing: free is the decision tool, Basic is the training, Pro is the interview prep.

If you're weighing free against paid in detail, we've written that comparison as its own page, covering TVET modules, private classroom courses and vendor training with costs and time-to-competence for each: free PLC training vs paid. This page won't repeat it. The one-line version: free to decide, cheap-paid to learn, employer-funded for vendor certificates.

What it costs

For when you outgrow free — and so you can see the line isn't hiding anything:

Option	Price	In rand (approx.)
Simulator — Free tier	$0, indefinitely	R0 — unlimited sandbox + first six graded lessons
Simulator — Basic	$12/month	~R220/month — full curriculum, wiring track
Simulator — Pro	$29/month	~R540/month — adds sensor school, cert packs, portfolio export
Simulator — Teams	$199/seat/year (min 5 seats)	~R3 700/seat/year — institutions and employers
SA classroom course	R4 100 – R17 595	one to five days, then it's over

Six months of Basic, enough to work through the curriculum part-time, runs about R1 300 total. That's under a tenth of a typical SA classroom week. Full detail on the pricing page; the wider SA course-price market is broken down in PLC course prices in South Africa.

Common questions

Is there completely free PLC training online?

Yes — our free tier, vendor intro e-learning and YouTube are all genuinely free, and combined they'll take you from zero to writing basic working ladder logic. What doesn't exist is a free path all the way to employable. Every free option stops before graded fault-finding practice and portfolio evidence, which is where hiring decisions actually get made.

Do free certificates mean anything to employers?

Almost nothing, in our experience of the SA market. Controls hiring managers see free PDF certificates constantly and treat them as proof of interest, not proof of skill. What moves an interview is writing a seal-in rung on a whiteboard without hesitating, or showing graded exercise work. Spend your free hours practising, not certificate-collecting.

Can you learn PLC programming at home for free?

The first stretch, yes — sandbox practice and beginner exercises need nothing but a browser and cost nothing. A laptop you already own beats a R15 000 course you haven't taken. The at-home route, free and paid stages both, is mapped in detail in our learning PLC at home guide.

How long does the free tier last?

Indefinitely. The sandbox and the first six lessons don't expire, there's no card on file, and nothing gets locked after a trial window. It stops being enough when you've finished the six lessons and want graded practice beyond them — that's the Basic tier, and the upgrade is a choice, not a countdown.

How hard is it to learn PLC with free resources only?

The basics, not hard — ladder logic was designed so electricians could read it. The struggle with free-only learning is structure and feedback: no syllabus ordering the work, and nothing failing your wrong answers. People who get far on free resources are unusually self-directed. Most learners stall after the basics, and that stall, not the content, is what the cheap paid tier fixes.

Start free — no card, no countdown →

What we don't claim

We are not SAQA-registered and not MerSETA-accredited, and nothing we issue, including our paid-tier completion records, is an NQF-listed qualification. We don't claim our free tier makes you employable; it's a decision tool and a genuine start, and we've tried to be exact about where it stops. We don't claim the paid simulator is free, because it isn't — it's paid software with a free tier, and we'd rather you know that from paragraph three than discover it at a checkout page. And we have an obvious commercial interest in you eventually choosing our Basic tier over other paid options, so read the free-vs-paid comparison with that in mind and verify any provider's claims — ours included — before committing money.