Practice real IEC 61131-3 ladder logic in your browser. Auto-graded machine scenarios, structured lessons, and interview preparation — no install, no credit card.
Join 700+ learners practicing PLC programming
Create a free account to track progress. 2 auto-graded scenarios free forever.
Why students choose us
Your ladder logic runs through a real parser and interpreter — not a visualisation. The same IEC standard used in Codesys, OpenPLC, and hundreds of industrial controllers.
Each of the 40 machine scenarios has a hidden test suite. Submit your program and get objective, instant feedback — no need to ask someone to check your work.
18 lessons, 12 quizzes, 6 interview tracks. The curriculum takes you from PLC fundamentals to PID control to job-ready in a single continuous path.
Practice scenarios
40 scenarios across 6 verticals. Each scenario has a detailed brief, animated simulation, and auto-graded test cases.
How it works
Create your account in 30 seconds. No credit card. Two auto-graded scenarios unlocked immediately.
Follow the 18-lesson structured path from PLC fundamentals to PID control, or go straight to a scenario.
Type ladder logic or structured text in the code editor. Run it against the machine simulation and watch outputs respond in real time.
Submit your program and the auto-grader runs every test case. See exactly which steps passed and which failed.
Why us
Pricing
The free tier gives you 2 scenarios and access to the first lesson — enough to know if the platform works for you. Full access to all 40 scenarios, 18 lessons, 12 quizzes, and 6 interview tracks is available at a monthly or annual rate.
Free tier. No install. No credit card. 30-second signup.
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