Free course · PLC programming
Omron PLC with CX-Programmer
Omron from first principles: automation, the PLC, CX-Programmer, every instruction family, and the worked programs that make it stick.
Free to learn. Verifiable certificate £19 when you pass the final exam (optional, VAT included).

Sample certificate. Optional, issued when you pass the final exam.
- Level
- Beginner
- Modules
- 16
- Video
- 18 hours
- Price
- Free
Outcome
What you will be able to do
Explain what a control system and a PLC do, install CX-Programmer and create a project, use Omron addressing and data types, write ladder with contacts, coils, KEEP, SET/RSET, DIFU/DIFD, interlocks, timers and counters, do arithmetic and comparisons, move and manipulate data, use shift registers, jumps and subroutines, scale an analog input, and solve the classic worked problems.
- Explain automation, control systems and the PLC from scratch
- Use Omron addressing: CIO, W, H, D, T, C and bit-of-word notation
- Latch with a seal-in, SET/RSET or KEEP, and know which input dominates
- Use IL/ILC interlocks and know what timers do inside them
- Use TIM, TIMX, TIMH, TMMH and TTIM, and CNT and CNTR
- Do arithmetic, comparison, block compare and area range compare
- Move, block-set, transfer, shift and rotate data
- Solve the conveyor, car park and tank programs from a specification
Software
CX-Programmer (part of CX-One; trial from Omron) with CX-Simulator
Hardware
None. CX-Simulator runs every exercise.
Syllabus
16 modules
Each module has video lessons, notes and a short quiz. The final exam closes the course.
- Automation, Control Systems and the PLC4 lessons
- Omron PLCs and CX-Programmer4 lessons
- Data Types, Addressing and Operating Modes3 lessons
- First Project and the Simulator2 lessonsLab
- Bit Logic and Logic Gates5 lessons
- Latching, Set/Reset, KEEP and Edges6 lessonsLab
- Interlocks: IL and ILC2 lessonsLab
- Timers: TIM, TIMX, TIMH, TMHH and TTIM6 lessonsLab
- Counters: CNT, CNTR and Reset4 lessonsLab
- Arithmetic and Comparison6 lessonsLab
- Move, Block Set, Data Exchange and Transfer6 lessonsLab
- Shift Registers, Rotate and Increment7 lessons
- Jumps, Subroutines and Number Conversion3 lessonsLab
- Analog Input Scaling1 lessonLab
- Worked Programs: Conveyor, Car Park, Sprinkler, Tank and More7 lessonsLab
- Final Assessment1 lesson
How it works
How this course works
- Watch the video lessonsOne module at a time, at your own pace.
- Take the module quizA short quiz at the end of each module shows what stuck.
- Keep your notesWrite in My notes beside each module and ask the trainer if you are stuck.
- Practise in the labOptionalTry a task from the module in the EDWartens Lab, in your browser.
- Sit the final examPass it once you have been through the modules.
- Certificate, if you want oneOptionalPaid, and only after you pass. Anyone can check it online.
EDWartens Lab
Practise this in the EDWartens Lab
Write and test the same ladder logic in the Lab's PLC simulator, go online and force inputs. The Lab uses a vendor-neutral editor, so brand software stays in the course.
Works alongside Omron PLC with CX-Programmer. The Lab is plc programming practice in your browser: no install, no hardware, free to use. Sign in as a learner and it opens with your account.
Levels to try with this course
PLC-01 · PLC lab
Motor start/stop with overload
Open in the lab (opens in a new tab)PLC-02 · PLC lab
Forward/reverse conveyor
Open in the lab (opens in a new tab)PLC-04 · PLC lab
Batch counter on a packing line
Open in the lab (opens in a new tab)PLC-05 · PLC lab
Tank filling pump
Open in the lab (opens in a new tab)
Optional. Skip it whenever you like: it never blocks your progress or your certificate.
Why practise in a lab
Technical work is judged on what you can do: wiring, commissioning, finding a fault. Doing a task yourself teaches more than watching it a second time, and a lab lets you try it safely before you meet real equipment. It does not replace working on real hardware.
- Practise safely, so a mistake costs nothing.
- The lab checks your work like a site test, so you know when it is right.
- Free, in your browser, with nothing to install.
Certificate
An optional certificate when you pass
Learning is free. Pass the final exam and you can have a certificate for £19, including VAT, with a number employers can check online. It records that you completed a free online course; it is not a regulated qualification or a CPD certificate.
- Your name, the course, its study time and your final exam score
- A unique certificate number and a QR code to its verification page
- Issued by Wartens Ltd; add it to your LinkedIn profile in one click
- Pay now or after you pass: it is issued the moment you pass the final

Credits
Who made the lessons
The video lessons belong to their creators. EDWartens wrote the study plan, notes, quizzes and the final exam.
- Instrumentation Tools
the entire Omron PLC course series
Questions
About this course
Do I need CX-Programmer?
Do I need an Omron PLC?
Which Omron PLCs does this cover?
Some lessons in the source series are members-only. Are they in the course?
What computer do I need?
Is the course really free?
What certificate do I get, and is it a Omron qualification?
Who made the video lessons?
Want a live class and career support?
The Professional Module is five live days of Siemens PLC, HMI and SCADA with an instructor, then a resume session and a CPD certificate.
