The question comes up frequently: can you genuinely learn PLC programming online? The answer is yes, with important caveats. Remote learning has improved dramatically, but understanding its strengths and limitations is essential for making a good investment in your career.
What Works Well Online
Several aspects of PLC training translate effectively to remote delivery:
Theory and Concepts
Understanding PLC architecture, scan cycles, data types, programming languages, and communication protocols can be taught excellently online. Good instructors use screen sharing, animated diagrams, and interactive quizzes to keep learners engaged.
Software-Based Programming
Modern PLC programming is primarily a software activity. Platforms like Siemens TIA Portal, Allen-Bradley Studio 5000, and Codesys can be installed on your own computer. With simulation tools like PLCSIM and Factory I/O, you can write and test complete programmes without physical hardware.
SCADA and HMI Configuration
SCADA platforms are inherently software-based. Configuring displays, alarms, trends, and databases works identically whether you are in a classroom or at home.
Structured Text and Advanced Programming
Text-based programming languages like Structured Text are particularly well-suited to online learning because they can be demonstrated, shared, and reviewed just like any other code.
What Is Harder Online
Some aspects of PLC training benefit significantly from in-person delivery:
Hardware Wiring and I/O Configuration
Understanding how to wire sensors, actuators, and PLC modules is difficult to replicate remotely. While videos can demonstrate the process, there is no substitute for physically connecting wires, testing circuits, and troubleshooting real hardware faults.
Troubleshooting Live Systems
Diagnosing problems on a running system involves using multimeters, checking indicator lights, tracing cables, and understanding the physical environment. These skills develop best through hands-on practice.
Networking and Industrial Communications
Configuring industrial networks, setting IP addresses, and troubleshooting communication issues between devices is easier to learn with real hardware setups.
The Best Approach: Blended Learning
The most effective PLC training combines online and practical elements:
- Learn theory and software programming online — Complete modules covering PLC architecture, programming languages, and simulation exercises at your own pace.
- Attend practical sessions in person — Use intensive lab sessions to practice hardware wiring, network configuration, and system commissioning.
- Continue with online projects — After practical sessions, reinforce skills with simulation-based projects and assignments.
<a href="/plc-training-europe">EDWartens' European training programmes</a> and <a href="/training">UK training options</a> offer blended learning formats that combine remote theory with practical lab sessions.
Evaluating Online PLC Courses
When choosing an online PLC course, look for:
- CPD accreditation — Ensures independently verified quality standards
- Live instructor sessions — Pre-recorded videos alone are insufficient for complex topics
- Simulation software included — You need tools to practice, not just watch
- Practical assessment — Courses that test your programming ability, not just theoretical knowledge
- Ongoing support — Access to instructors for questions after the course ends
- Industry recognition — Check whether employers in your target market recognise the qualification
Common Pitfalls to Avoid
- Free YouTube tutorials as sole learning source — While useful for supplementary learning, unstructured video content lacks the systematic progression needed for professional competence.
- Courses with no practical component — PLC programming is a hands-on skill. Theory-only courses leave significant gaps.
- Vendor-locked content — Ensure your course covers transferable concepts, not just one specific PLC model.
- No assessment or certification — Without verified assessment, you have no proof of competence to show employers.
The Verdict
Online PLC training works well for theory, software programming, and SCADA configuration. However, the most complete learning experience combines remote study with practical, hands-on sessions using real equipment. If you choose your course carefully and supplement online learning with practical experience, remote PLC training can absolutely launch or advance your career.