A browser-based PLC training platform, built and maintained by one instructor who tests everything in the simulator before it ships.
PLC Simulation Software is a PLC simulator that runs entirely in the browser — no install, no vendor license, no hardware. You write ladder logic or structured text against a real scan cycle, run it against simulated machines, and get graded automatically against test cases, the way real acceptance testing works.
Around the simulator sits a full industrial-automation training stack: an HMI design path, a robot programming course with a physics-based robot simulator, industrial wiring labs, and a sensor school. In numbers: 130+ auto-graded scenarios and lessons, 110+ in-depth articles, three PLC dialects (IEC 61131-3 structured text, Allen-Bradley-style, Siemens-style), and verifiable certificates a recruiter can check at a public URL.
The training, articles, and scenarios here are written by Paul, the site’s instructor and author. Paul’s background is hands-on industrial controls work — years of PLC programming, commissioning, and fault-finding on real production equipment — and the teaching style reflects it: less theory-first lecturing, more “here is a machine, make it work, here is why it didn’t.”
That plant-floor bias shows up everywhere on the site: troubleshooting is taught as a method (half-split, one hypothesis at a time), interview prep drills the questions hiring managers actually ask, and career guides say plainly when a published salary figure is an estimate and where it came from.
Code samples, lesson solutions, and scenario walkthroughs are executed in the simulator against their test cases before they ship. If an article shows a rung, that rung has run.
Salary figures and job-market claims link to their sources — U.S. Department of Labor data (O*NET), and named salary aggregators — with the date they were checked. Where only indicative ranges exist, the pages say “indicative” rather than dressing estimates up as facts, and we don’t publish country figures we can’t stand behind.
A browser simulator is not vendor firmware emulation, and the pages that compare us to PLCSIM or Logix Emulate say exactly that. Training claims are limited to what the platform actually teaches.
Spotted an error — technical, factual, or a broken link? Email and it gets fixed. Reader corrections have improved lessons before and are credited when wanted.
Questions about the content, corrections, or teaching with the platform: paul@plcsimulationsoftware.com. Account or billing issues: support@plcsimulationsoftware.com. Class, team, or institutional enquiries: hello@plcsimulationsoftware.com.
The simulator is the best introduction — it runs in your browser, right now, free.