You can learn the basics of PLC programming, meaning reading and writing ladder logic with timers, counters and simple sequences, in roughly four to eight weeks of regular study. Becoming employable usually takes three to six months of focused practice with real projects, and becoming independent on live plant takes a year or more in a job. Those are planning estimates drawn from how engineers actually ramp up, not measured statistics, and your background changes them a lot.
How long does it take to learn PLC programming from scratch?
For a complete beginner, expect about 40 to 60 focused hours before you can build and test simple ladder programs comfortably. That is a planning estimate, not a published figure: a few hours a week for two months, or a full-time week or two if you can commit.
What those hours cover matters more than the number. A first useful skill set includes:
- reading a ladder diagram and understanding scan order
- inputs, outputs, memory bits, latches and seal-in circuits
- timers (on-delay, off-delay) and counters
- basic analogue values and comparisons
- structuring simple start/stop and sequence logic
- going online, forcing and monitoring values, and finding your own mistakes
Anything beyond that is depth: function blocks, structured text, motion, safety, networking and, above all, judgement about how plant behaves.
How long does it take depending on your background?
Your starting point is the biggest variable. The table below gives realistic planning ranges, not guarantees.
| Your background | Basic ladder logic | Interview-ready portfolio | Comfortable on a real site |
|---|---|---|---|
| Complete beginner, no electrical knowledge | 6 to 10 weeks | 4 to 6 months | 12 to 24 months in a role |
| Electrician or maintenance technician | 3 to 6 weeks | 2 to 4 months | 6 to 12 months in a role |
| Electronics or electrical graduate | 2 to 4 weeks | 2 to 3 months | 6 to 12 months in a role |
| Software developer | 2 to 4 weeks (the logic is quick; the electrical side is not) | 3 to 4 months | 6 to 12 months in a role |
The electrical side is the bit software people underestimate. A PLC program that is logically right can still fail because of a bad sensor type, a floating input, a tripped overload or an emergency stop that is wired the way you did not expect. If you are weak on that, spend time on electrical fundamentals for technicians in parallel.
What level are PLC courses?
PLC courses sit at very different levels, and only some are regulated qualifications. GOV.UK's list of qualification levels places a Level 3 at A level and advanced apprenticeship, Level 4 at an HNC or higher apprenticeship, and Level 6 at an honours degree. Dudley College, for example, describes its evening PLC course as Level 4, but with a competency certificate and no formal assessment.
Other courses are different again. Make UK's 3-day PLC course has no assessment and issues a certificate of attendance. Technique Learning Solutions' 5-day course is accredited by City & Guilds. A CPD-accredited course, including ours, is a certified CPD activity rather than a regulated RQF qualification. None of this makes one useless, but you should know what you are buying. The detail is in CPD vs City & Guilds vs Siemens certification.
How long are the classroom courses?
Short PLC classes run from days to weeks, and the class is the start of learning, not the end.
- Make UK: 3 days, £995 plus VAT, certificate of attendance
- Technique Learning Solutions: 5 days, £1,030 excluding VAT, City & Guilds accredited
- Dudley College: 8 weeks of Wednesday evenings, free if eligible
- EDWartens UK Professional Module: 5 live online days, followed by 68 self-paced Basic Engineering modules, £2,140 plus VAT
A five-day class gives you structure, correction from an instructor and a working vocabulary. It does not give you 100 hours of muscle memory. Plan the same amount of practice again after the class.
This short beginner roadmap from Elite Automation, a US automation firm, names the practice tools it uses (Logix Pro Simulator, TIA Portal Basic, OpenPLC Editor and PLC Fiddle) and builds a start-stop circuit and a conveyor control with a sensor and timer. Check each tool's licence terms yourself; the method of small projects works anywhere.
What is a realistic 12-week learning plan?
A simple plan is to move from circuits to logic to a Siemens-style project, with a free resource at each step. All of these are free:
- Weeks 1 to 2: electrical basics and the idea of a PLC. Work through electrical fundamentals and try the free electrical wiring simulator and multimeter simulator.
- Weeks 3 to 4: ladder logic. Use the free ladder logic simulator and our ladder logic tutorial for beginners. Build a motor start/stop with seal-in, then a timed light sequence.
- Weeks 5 to 6: motor control and instrumentation. The free industrial motor control course and the motor control simulator show why a PLC is there at all.
- Weeks 7 to 9: TIA Portal. Take the free Siemens TIA Portal course and rebuild your earlier programs there.
- Weeks 10 to 12: a project. Add an HMI screen and an alarm to a small process using the free TIA Portal HMI and WinCC course, and write it up with screenshots.
If you want a first look at the interface before committing, the free PLC simulator needs no install and saves your work on your device.
What does job-ready actually mean?
For a trainee or junior role, job-ready means you can do four things without help, and show evidence of each.
- Take a simple written specification and produce a working, commented program.
- Test it systematically against the specification and keep notes of what you checked.
- Find and fix a deliberately introduced fault.
- Explain what you built and why, in plain language, in an interview.
HMI and SCADA awareness helps too. One of the Reed adverts on 21 October 2026 was titled "Junior Automation Engineer (PLC / HMI / SCADA)" at £40,000 to £50,000 including benefits, which shows that employers often bundle these skills even at junior level.
The calendar time depends on how many hours a week you can give. Assuming roughly 50 hours for the basics and another 100 for a small portfolio (both planning estimates), the arithmetic looks like this:
| Hours per week | Time to about 150 hours |
|---|---|
| 5 | About 30 weeks |
| 10 | About 15 weeks |
| 20 | About 8 weeks |
| 40 (full time) | About 4 weeks |
Full-time learners still need rest days and time for the material to settle, so treat the shortest figures as the floor, not the target.
What slows people down?
Most people stall for the same four reasons.
- Watching instead of building. Tutorials feel like progress. Pause the video and write the program yourself before you see the answer.
- Skipping fault finding. Deliberately break your program and find the fault. Employers hire people who can diagnose, as our PLC troubleshooting guide explains.
- Learning three platforms at once. Pick one. Siemens is common in UK industry, but Rockwell and Mitsubishi also appear. ITJobsWatch lists Siemens in 17 of 144 PLC Engineer ads in the six months to 21 October 2026 and Rockwell in 8, though in a small, IT-focused sample.
- Ignoring standards and safety. Understand why safety circuits are hardwired and how risk assessments work before you touch live plant.
How long until you can get a PLC job?
There is no standard timeline, and no course makes one for you. Reed showed 133 results for "trainee PLC" on 21 October 2026, including trainee service engineer and junior controls roles at about £26,000 to £40,000 for the examples listed, plus junior automation roles at £40,000 to £50,000. Apply while learning, not after: a 12-week portfolio of three small projects and a clear CV is a reasonable base to start applying for trainee roles, though competition varies by region. Our guide to your first PLC engineering job with no experience covers the application side and the 50 interview questions help with preparation.
The IET's 2025 Skills Survey found 76% of UK engineering employers struggle to recruit for certain skills, and 30% say they lack automation skills. That shows demand for the skills, not any individual's chances.
How EDWartens can help
If you would rather be taught than self-teach, the Professional Module runs five live days online with an instructor in Siemens TIA Portal, then a 68-module self-paced Basic Engineering library. Cohorts start every Monday with a maximum of 10 learners. The certificate is CPD accredited (80 credits), not a regulated qualification, and there is no job guarantee, though career support includes a one-to-one resume session. See the Professional Module and sign up when ready.
