Free course · PLC programming
Siemens SCL Structured Text in TIA Portal
From ladder to text on the S7-1200 and S7-1500: setting up the controller, tags and monitoring, data types, maths and data blocks, FCs, FBs, timers, counters and diagnostics, an eight-part SCL worked example, loops with FOR, WHILE, REPEAT, CONTINUE and EXIT, and a time-sliced part counter application.
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
- 8
- Video
- 12 hours
- Price
- Free
Outcome
What you will be able to do
Configure an S7-1200, create tags and DBs, use FCs, FBs, timers and counters, write SCL with IF, CASE, FOR, WHILE and REPEAT, control loop flow with CONTINUE and EXIT, handle arrays and cycle-time consistency, and build a complete SCL application.
- Configure an S7-1200 with tags, DBs and data types
- Use FCs, FBs, timers, counters and diagnostics
- Write SCL with IF, CASE, arrays, structs and timers
- Use FOR, WHILE and REPEAT loops safely
- Build a time-sliced part counter application
- Mix SCL and ladder in one project
Software
TIA Portal (trial) with PLCSIM
Hardware
None required.
Syllabus
8 modules
Each module has video lessons, notes and a short quiz. The final exam closes the course.
- S7-1200 Setup, Tags and Monitoring5 lessons
- Data Types, Maths, Conversions and Data Blocks6 lessonsLab
- FCs, FBs, Timers, Counters, Forcing and Diagnostics10 lessonsLab
- SCL Language Basics and the Worked Example, Parts 1 to 38 lessonsLab
- SCL Worked Example, Parts 4 to 8: Data, State Logic and Debugging5 lessonsLab
- Loops in SCL: FOR, WHILE, REPEAT, CONTINUE and EXIT4 lessons
- SCL Application: Time-Sliced Part Counter1 lesson
- 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 structured text and function block programs in the Lab's IEC 61131-3 simulator and watch them run.
Works alongside Siemens SCL Structured Text in TIA Portal. 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-04 · PLC lab
Batch counter on a packing line
Open in the lab (opens in a new tab)PLC-06 · PLC lab
Pedestrian crossing
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.
- PCC | A GCG Company
the Siemens S7-1200 video training series
- Jonathan Stodden
the TIA Portal SCL examples
- PLC Tutor
the SIEMENS TIA Portal SCL tutorial
- Hegamurl
4 lessons in "SCL Language Basics and the Worked Example, Parts 1 to 3"
- The Automation Craze
a lesson in "SCL Language Basics and the Worked Example, Parts 1 to 3"
Questions
About this course
Why SCL?
Do I need to know ladder first?
Is this only for S7-1500?
Is the course really free?
What certificate do I get, and is it a vendor qualification?
Who made the video lessons?
How long does the course take?
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.
