PLC programming
Siemens TIA Portal in Three Hours
Get your first PLC program running in three hours: wiring basics, an S7-1200 in TIA Portal and a start/stop rung.
Siemens TIA Portal in Three Hours is a free, self-paced online course from EDWartens for engineering students, apprentices, technicians and working engineers in automation, electrical and instrumentation. It has 9 modules and takes about 5.9 hours, with written notes, a practice task per module, a practical project and a final assessment of 15 questions (pass mark 60%). Learning costs nothing and needs only a free account. The optional EDWartens Certificate of Completion, verifiable by code, is a one-off US$23.99 for you; it is not a vendor credential. Updated 1 November 2026.
- Free
- Beginner
- 5.9 hours
- Self-paced
- Certificate optional
- Lab practice in your browser
No card, no trial. The course is free for good. Certificate US$23.99, optional.
- Who it is for
- Engineering students, apprentices, technicians and working engineers in automation, electrical and instrumentation
- Jobs
- Roles that use this skill: PLC programmer, controls engineer, automation technician and commissioning engineer. No course guarantees a job.
- Tools
- The current TIA Portal trial (21 days) with S7-PLCSIM. Modules 1 to 3 need no software. Hardware: none, everything runs in simulation.
- Updated


After this course you can
By the end you will be able to:
- Explain what a PLC does and how it scans
- Wire a sinking or sourcing sensor correctly
- Create and configure an S7-1200 project in TIA Portal
- Download to S7-PLCSIM through a tag table
- Write and prove a start/stop seal-in rung
Who it is for, and what you need first
Who it is for
Engineering students, apprentices, technicians and working engineers in automation, electrical and instrumentation.
Level: Beginner. Absolute beginner. No prior PLC, electrical or programming knowledge assumed.
What you need
Software: The current TIA Portal trial (21 days) with S7-PLCSIM. Modules 1 to 3 need no software..
Hardware: None, everything runs in simulation. What to download, and how.
How this course works
Watch the lessons
Short video lessons, one module at a time, at your own pace.
Read the notes
Open the Reading tab for the written notes and diagrams of the module.
Practise in the 3D labOptional
Try the module in the free 3D lab, in your browser.
Check yourself
Answer the questions to see what stuck before you move on.
Final assessment
Pass the final once you have been through the modules.
Certificate, if you want oneOptional
Optional, with a page anyone can use to verify it.
What you learn
9 modules in order, at your own pace. 5.9 hours of video lessons, with written notes and a practice task in each module.
- 1What Automation Is, and What a PLC Actually Does17m
- 2Inside the PLC, Hardware and the Scan Cycle17m
- 3Wiring Basics, Sinking, Sourcing and 24 V DC, with lab practice: 9m
- 4Meet Siemens and TIA Portal28m
- 5Your First Project and Hardware Configuration11m
- 6Addressing, Inputs, Outputs and Memory42m
- 7Simulation, Running a PLC You Do Not Own, with lab practice: 11m
- 8Contacts and Coils, The Two Symbols That Matter, with lab practice: 25m
Show the other 1 modules
- 9Final Assessment
Software you need
What to download, where from, what it costs and how to install it. Every link goes to the maker's own site, never a mirror.
Modules 1 to 3 need no software, so you can start while the download runs.
Show what to download (2 tools)
Required
- 01Free trial: 21 days
SIMATIC STEP 7 Professional and WinCC (TIA Portal) V21 Trial
Siemens
- Runs on
- Windows 11 Pro or Enterprise 64-bit (24H2), Windows 10 Enterprise 2021 LTSC, or Windows Server 2022/2025. Windows 11 Home is supported only for the Basic editions.
- Account
- A free Siemens account registered for Industry Online Support (SiePortal)
- Size
- about 8.1 GB for the main ISO, plus an optional 3.1 GB DVD 2 with hardware support packages
Siemens lets registered users download the V21 trial of STEP 7 (Basic and Professional), STEP 7 Safety and WinCC and test it for 21 days. The same package is used for the full product; after 21 days you need a purchased licence to keep working.
Steps
- 1.Open the Siemens trial page (entry 109989774) and sign in with your Siemens Industry Online Support account.
- 2.Download TIA_Portal_STEP7_Safety_WinCC_V21.iso (8.1 GB).
- 3.Download S7-PLCSIM_V21.iso (2.5 GB) from the same page: PLCSIM is a separate download.
- 4.Right-click each ISO, choose Mount, and run Start.exe as administrator. Install STEP 7 and WinCC first, then PLCSIM.
- 5.Follow the setup, accept the licence terms and restart the PC when asked.
- 6.Open TIA Portal V21 and create a new project to confirm it runs.
- Install from a local drive with plenty of free space; Siemens lists 20 GB free as the minimum and the ISOs alone are over 10 GB.
- You only need DVD 2 if you want extra hardware support packages.
- If you cannot install locally, Siemens also offers a 21-day TIA Portal Cloud trial in the browser (one-hour sessions, not in every country).
Official download pagesupport.industry.siemens.comAlternatives
- TIA Portal Cloud trial: 21 days free in a cloud virtual machine, no install. Sessions are limited to one hour and it is not available in every country.
- 02Free trial: 21 days
S7-PLCSIM V21 (TIA Portal) Trial
Siemens
- Runs on
- Windows 11 Pro or Enterprise 64-bit (24H2), Windows 10 Enterprise 2021 LTSC, or Windows Server 2022/2025. Windows 11 Home is supported only for the Basic editions.
- Account
- A free Siemens account registered for Industry Online Support (SiePortal)
- Size
- about 2.5 GB (ISO)
S7-PLCSIM V21 is offered as a 21-day trial on the same Siemens page as the STEP 7 and WinCC V21 trial. It needs STEP 7 V21 installed on the same PC.
Steps
- 1.Open the Siemens STEP 7 and WinCC V21 trial page (entry 109989774) and sign in.
- 2.Install STEP 7 V21 from the main TIA Portal ISO first.
- 3.Download S7-PLCSIM_V21.iso (2.5 GB) from the section Download S7-PLCSIM Standard V21.
- 4.Mount the ISO, run Start.exe as administrator and follow the setup.
- 5.In TIA Portal, select your CPU and click Start simulation to open PLCSIM.
- Siemens notes that the PLCSIM Standard V21 installation also includes S7-PLCSIM Advanced V8.0.
Official download pagesupport.industry.siemens.com
Checked against each maker's own page on 27 September 2026. Trial lengths and editions change; the maker's page is the final word.
Practise in the 3D lab
Try your first ladder rungs on a working machine in the PLC lab: read the brief, build a start/stop, go online and see it run, the same logic you write in TIA Portal.
- Motor start/stop with overloadPLC lab, about 45 minOpen in the lab (opens in a new tab): Motor start/stop with overload
Optional. Skip it whenever you like: it never blocks your progress or your certificate.
Course project, about 4 hours
Carton conveyor with emergency stop, overload and strapper interlock: contacts, coils and a signed FAT on an S7-1200
Design, program, test and document a small carton conveyor for a printing works. It has a sealed-in run request, an emergency stop input, an overload input and a belt that waits for the strapping machine to clear. All of it is built from contacts and coils. You deliver the program, your own I/O list and FAT record, and a hand-over note. The sample pack shows what a system integrator delivers for a job this size.
- 5documents in the pack
- 7steps to follow
- Laboptional: in the 3D lab
- 5things to hand in
- 4 hof work, at your pace
- Control narrativeSequence of Operations: Carton Conveyor CV-1
- I/O listI/O List: Panel CP-1
- BOMBill of Materials: Panel CP-1 and Field Devices
- FATFactory Acceptance Test Record: Panel CP-1
- Handover certificateSite Acceptance and Handover Certificate: Conveyor CV-1
Do it in the lab: 4 steps.
The project is optional practice. The certificate needs only the modules and the final assessment.
After the course, your next step
Show what you can do, then keep going in the same field.
A certificate you can verify
Finish the modules and pass the final assessment (15 questions, pass mark 60%) and you can add a certificate with a public verification page. One-off, US$23.99 for you. It is not a vendor credential.
Want a free certificate? Do the matching Free internship: 4 weeks, nothing to buy, with a free certificate of completion.

PLC Programming
Eight short weeks of PLC ladder logic on free simulators: notes, diagrams, a few videos and auto-tested tasks. Finish weeks 1 to 4 and the final, then claim a free Internship Completion Certificate with your real dates and study hours, and a QR code anyone can scan to verify it. Training, not employment.
See the internshipMore free courses
Roles that use this skill
- PLC programmer
- Controls engineer
- Automation technician
- Commissioning engineer
These are the kinds of roles where the skill is used. We make no promise of a job or an interview.
Plain notes
- Free: the whole course, the notes, the practice tasks, the final assessment and support from practising engineers.
- Paid, and optional: the course certificate, and the Engineer-verified internship (the Free internship costs nothing).
- No job promise: the course teaches a skill. It does not place you in a job.
- Lessons by: Instrumentation Tools, ControlByte Automation. Independent creators; the lessons stream from their own channels. EDWartens wrote the study plan, notes, practice tasks and assessments.
Instrumentation Tools · ControlByte Automation. If you are one of these creators and want a lesson removed or credited differently, write to info@edwartens.com.
Practise what you learn in the free 3D 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.
Why learn with EDWartens
What you get with this course, and what comes after it.
- Free from the first lesson to the final assessment.
- Practice in a free 3D lab in your browser, with nothing to install.
- Video lessons with written notes and a project.
- An optional certificate that anyone can verify online.
- Free internships to keep practising afterwards.
Common questions
How is this different from the full Siemens TIA Portal course?
It is the first eight modules of that course, the same lessons in the same order. It has its own short final assessment and its own certificate. The full course goes on to timers, counters, analog scaling, function blocks and a WinCC HMI screen over 22 modules. This one stops once you have written and proven your first ladder rung, which takes about three hours of video. If you want more, you continue into the full course from module 9 and nothing is repeated.
Why would I take the short one rather than the full course?
Most people who start a 22-module course never reach the end, and the certificate is earned at the end. This course gets a working program and a certificate into your hands in an evening or two. It is also the honest test of whether PLC work suits you before you give it six weeks.
Do I need to buy TIA Portal?
No. Siemens publishes a free 21-day trial of TIA Portal with S7-PLCSIM included. It needs only a free Siemens account to download. Modules 1 to 3 need no software at all, so do those first and install before module 4.
Do I need a real PLC?
No. Every exercise runs in S7-PLCSIM, the simulator included in the trial. Nothing in this course assumes you have hardware.
What kind of computer do I need?
You need a 64-bit Windows 11 Pro or Enterprise PC with administrator rights, at least 8 GB of RAM and 20 GB free on the drive. Siemens recommends 16 GB and an SSD with about 50 GB free. TIA Portal V21 no longer supports Windows 10 Pro; older versions such as V17 still install on Windows 10. It does not run on macOS or Linux. A Windows virtual machine works if you give it plenty of memory.
Is the Siemens TIA Portal in Three Hours course really free?
Yes. Every module, every practice task and the final assessment. You create an account so your progress is saved and the assessment can be marked. The only paid item is the certificate, and only if you decide you want it.
What certificate do I get, and is it a Siemens qualification?
You get an EDWartens Certificate of Completion for the starter course when you pass the final assessment. It has a unique number anyone can verify on our site. It is not a Siemens credential and we will never describe it as one.
Do I have to use the lab?
No. The lab is optional practice. You can skip it whenever you like, and it never blocks your progress, the final assessment or your certificate.
Is the lab free?
Yes. Every lab level for this course opens in your browser, free, with nothing to install.
What topics does the Siemens TIA Portal in Three Hours course cover, module by module?
The Siemens TIA Portal in Three Hours course has 9 modules. It opens with "What Automation Is, and What a PLC Actually Does", goes through "Inside the PLC, Hardware and the Scan Cycle", "Meet Siemens and TIA Portal", "Addressing, Inputs, Outputs and Memory" and "Contacts and Coils, The Two Symbols That Matter" and ends with "Final Assessment". The full list with minutes is under "What you learn" on this page.
What can I do after the Siemens TIA Portal in Three Hours course?
After the Siemens TIA Portal in Three Hours course: Explain what a PLC does, where it sits in the automation pyramid and why it replaced the relay panel; Describe the scan cycle and the process image, and say what happens to a signal shorter than one scan; Wire a sinking or sourcing sensor to an S7-1200 input without guessing, and say what fail-safe means. These are the practical outcomes the course is written around, and the final assessment of 15 questions checks them.
What software and hardware do I need for the Siemens TIA Portal in Three Hours course, and does it cost anything?
For the Siemens TIA Portal in Three Hours course, software: The current TIA Portal trial (21 days) with S7-PLCSIM. Modules 1 to 3 need no software. Hardware: none, everything runs in simulation. The course itself is free.
Is the Siemens TIA Portal in Three Hours course suitable for me, and what level is it?
Siemens TIA Portal in Three Hours is rated beginner. Absolute beginner. No prior PLC, electrical or programming knowledge assumed. It is written for engineering students, apprentices, technicians and working engineers in automation, electrical and instrumentation, and takes about 5.9 hours at your own pace.
Which jobs use the skills from the Siemens TIA Portal in Three Hours course?
Skills from the Siemens TIA Portal in Three Hours course (for example: explain what a PLC does, where it sits in the automation pyramid and why it replaced the relay panel) are used in roles such as PLC programmer, controls engineer, automation technician and commissioning engineer, and in automation engineer work. The course gives you practical evidence of the skill; it does not promise a job, and employers decide on experience and interview.
Start free today
Siemens TIA Portal in Three Hours, at your own pace. Add the certificate only if you want one.