PLC Programming: Ladder Logic for Beginners
Course Overview
What You'll Learn
- Read and write PLC ladder logic
- Use Normally Open and Normally Closed contacts
- Build AND, OR, XOR, and NOT logic
- Create motor Start/Stop and seal-in circuits
- Use standard coils and Set/Reset instructions
- Detect rising and falling edges with one-shots
- Avoid duplicate output and double-coil problems
- Control processes with TON, TOF, and retentive timers
- Count products using CTU, CTD, and CTUD counters
- Use comparisons, range checks, math, and MOVE instructions
About This Free Course
Learn PLC programming and ladder logic from scratch in approximately three hours—without buying expensive PLC hardware or industrial software.
This beginner-friendly course takes you from free financial services understanding interest rates course what a Programmable Logic Controller is to planning, building, simulating, and testing a complete automatic bottle-filling system.
You will begin with the foundations of industrial automation: PLC inputs and outputs, the scan cycle, ladder diagrams, rungs, contacts, coils, bits, tags, and addresses. You will then build your first working ladder logic program using a free PLC simulator.
Step by step, you will learn how to:
Read and write PLC ladder logic
Use Normally Open and Normally Closed contacts
Build AND, OR, XOR, and NOT logic
Create motor Start/Stop and seal-in circuits
Use standard coils and Set/Reset instructions
Detect rising and falling edges with one-shots
Avoid duplicate output and double-coil problems
Control processes with TON, TOF, and retentive timers
Count products using CTU, CTD, and CTUD counters
Use comparisons, range checks, math, and MOVE instructions
Organize sequences with finite state machines
Create clear PLC I/O lists and state diagrams
Use Claude AI to draft, explain, and debug PLC logic responsibly
You will reinforce these skills through practical exercises, including a motor Start/Stop circuit, blinking oscillator, conveyor product counter, tank-level alarm, and traffic-light state machine.
For the final project, you will build an automatic bottle-filling station. The PLC program detects a bottle, fills it, allows the liquid to settle, applies a cap, ejects the finished bottle, and counts production until a complete batch is reached.
The course uses free tools such as PLC Fiddle and OpenPLC, allowing you to practice PLC programming on a normal computer without physical hardware. The concepts you learn are transferable to major industrial platforms such as Siemens TIA Portal and Rockwell Studio 5000, although their software and instruction names may differ.
You will also discover how an AI assistant can help create I/O lists, draft ladder logic, explain instructions, and diagnose programming problems. More importantly, you will learn the practice test for okta certified professional 2026 rule behind AI-assisted automation: understand every rung, simulate every program, test edge cases, and never treat AI-generated logic as a substitute for safety engineering.
Who this course is for
This course is designed for:
Complete beginners interested in PLC java to develop programming skills
Electrical and electronic engineering students
Automation and control engineering students
Maintenance technicians entering industrial automation
Electricians who want to understand ladder logic
Makers and programmers exploring PLC control systems
Anyone who wants a fast, practical introduction to PLCs
No previous PLC programming experience is required. No physical PLC is required. You only need a computer, internet access, and a willingness to practice.
By the end of the course, you will understand the fundamental thinking behind ladder logic and be able to build, organize, simulate, test, and explain beginner PLC automation projects
Who Should Take This Course
"PLC Programming: Ladder Logic for Beginners" is aimed at people who want a practical, structured introduction to udemy without paying full price for it. It's a solid fit if you're starting out in udemy and want a guided course rather than piecing tutorials together yourself, if you've tried free YouTube content on the topic and want something more organized, or if you already work in a related area and want a refresher you can finish at your own pace. Since enrollment happens on Udemy itself, you keep full access to view the lectures, download any provided resources, and revisit the material later — this isn't a stripped-down or time-limited version of the course.
Why This Course Is Worth Taking
Our take: this listing earns a spot on FreeWebCart because the coupon we verified actually brings the price to $0, not just a token discount, and the course carries a 4.5/5 rating on Udemy. That combination — real reviews plus a working 100% OFF code — is what we look for before publishing a udemy course. It won't replace hands-on experience or a full degree program, but as a low-risk way to test whether udemy is worth pursuing further, or to pick up one specific skill, the free price tag makes it an easy yes while the coupon lasts.
Pros & Cons
👍 Pros
- 100% free to enroll via this coupon (normally $109.99)
- Lifetime access on Udemy once enrolled, even after the coupon expires
- Rated 4.5/5 by past students on Udemy
- Self-paced — no fixed schedule or live sessions to attend
👎 Cons
- Coupon is time-limited and can expire before you enroll
- No live instructor support — questions go through Udemy's Q&A, not us
- Certificate is a Udemy completion certificate, not an accredited qualification
Frequently Asked Questions
Is "PLC Programming: Ladder Logic for Beginners" really free?
Yes — we verified a 100% OFF Udemy coupon for this udemy course before publishing it. Enroll directly on Udemy using the button below; no credit card is needed while the coupon is active.
How long will this coupon last?
Udemy coupons typically last 1–3 days or expire after roughly 1,000 enrollments, whichever comes first. If the price on Udemy no longer shows $0 when you click through, the coupon has expired since we last checked it.
Do I keep access after the coupon expires?
Yes. Once you enroll while the coupon is live, "PLC Programming: Ladder Logic for Beginners" is yours to keep on Udemy — including any future updates the instructor makes — even after the coupon runs out.
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