Do I need Parallels or a Windows VM?

No. That is the whole point. If you only need a Windows VM for PLC practice, skip it — $100/yr for Parallels plus a Windows licence plus a TIA Portal or Studio 5000 seat is roughly $1,500–$2,500 a year that you do not need to spend.

Will TIA Portal ever run natively on Mac?

Not as of 2026, and Siemens has given no public roadmap for a native macOS port. The official guidance is "use a Windows VM." That is unchanged since TIA Portal V13 in 2014. Rockwell has the same stance for Studio 5000. Until vendors ship native Mac tooling, browser-based learning is the practical path.

Does it save scenarios locally on my Mac?

Progress syncs to your account in the cloud. Scenarios you have opened also cache locally so you can keep working if your wifi drops — standard Progressive Web App behaviour. Add the app to your dock via Safari's Share menu or Chrome's Install button.

Can I connect it to a real PLC over EtherNet/IP or PROFINET on my Mac?

Not directly. Real PLC networking belongs on a deployment machine (usually Windows + vendor tool). Our simulator runs a self-contained machine model — you build muscle memory in ladder and structured text, then move to real hardware separately.

Is there a native Mac app?

Not a separate binary. The web app can be "installed" as a Progressive Web App that opens in its own window and shows up in Launchpad. For most practical purposes that is the native experience on Mac in 2026 — no App Store review, no signing hassle, immediate updates.

Why are the App Store "PLC simulator" apps not enough?

Most of the iOS/Mac App Store "PLC simulator" apps and the BlueStacks-emulated Android ladder apps are single-rung toys — no scan-cycle runtime, no auto-grading, no real IEC 61131-3 parser, and no Allen-Bradley or Siemens dialect. They are fine for poking at a contact-and-coil, but they do not build job-ready muscle memory. This runs real ladder and structured text against hidden test cases in the same browser tab, with no emulation layer.

PLC Simulator

PLC simulator for Mac

PLC Simulator for Mac — No Parallels, No Windows VM

Q: Does it run natively on Apple Silicon (M1, M2, M3, M4)?

Yes — it runs in Safari, Chrome, Edge, and Firefox on any Mac from the last decade, Intel or Apple Silicon. Performance on M-series is excellent because the simulator is WebAssembly plus JavaScript; there is no x86 emulation layer in the critical path.

Practice ladder, structured text, and FBD on your MacBook or iMac directly in the browser. Works on Apple Silicon and Intel. No Parallels. No Windows licence. No TIA Portal.

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What is PLC on my Mac?

If you landed here because macOS showed you a process or notification labelled "PLC" and you are wondering what it is — you are probably not looking for PLC programming software. There are a few things on a Mac that use the abbreviation PLC:

Privacy & Location Controls (PLC) — an internal macOS system process related to location and privacy services. It is part of the OS and is benign.
PowerLine Communication adapters — home networking hardware sometimes abbreviated PLC; unrelated to software.
Public Limited Company — a British corporate designation (e.g. "Rolls-Royce PLC") that has nothing to do with computers.

If none of those match what you are seeing, a safe first step is to open Activity Monitor (Applications → Utilities → Activity Monitor) and search for the process name to see which app owns it.

If you are looking for PLC programming — Programmable Logic Controller software — on your Mac, read on. That is exactly what this page covers.

The problem

Why Mac users struggle with PLC software

Every major vendor PLC tool is Windows-first and has been for two decades. TIA Portal is Windows-only. Studio 5000 is Windows-only. Codesys IDE is Windows-only. Factory IO is Windows-only. LogixPro is Windows-only. On a Mac — whether an Intel iMac or an M3 MacBook — none of those install natively.

The orthodox workaround is Parallels Desktop (~$100/yr) + a Windows licence (~$200 one-off for Home) + a vendor PLC IDE licence (TIA Portal €1,200+/yr, Studio 5000 $5,500+/yr). That is roughly $1,500–$2,500 per year before a single rung is written — and Apple Silicon adds its own complications because Windows 11 on ARM has to emulate x86 for most PLC tools, which carries a 30–50% performance penalty and occasionally breaks installs outright. Then there is the keyboard layout tax: every Windows shortcut expects Ctrl where the Mac has ⌘, and no VM fixes this well.

The whole PLC simulator lives in a Safari or Chrome tab on your Mac — no VM, no x86 emulation, no licence file.

The S7-PLCSIM question

Can you run S7-PLCSIM on a Mac?

No — S7-PLCSIM is Windows-only, and so is S7-PLCSIM Advanced. Both ship as part of the Siemens TIA Portal ecosystem, which has never had a native macOS build. There is no Mac installer, no Apple Silicon port, and no public roadmap for one.

That leaves Mac users with exactly two honest options: run Windows in a VM (Parallels on any Mac, or UTM free on Apple Silicon) and install TIA Portal + S7-PLCSIM inside it, or use a browser-based simulator that runs natively in Safari or Chrome. Here is how they compare:

	Windows VM + S7-PLCSIM	Browser simulator (this)
Cost	Parallels ~$100/yr (or UTM free) + Windows licence + TIA Portal licence	Free tier, no licences
Setup time	Hours to a full day (VM, Windows, TIA Portal install)	Under two minutes
Apple Silicon	Windows-on-ARM must emulate x86 for TIA Portal — slow, sometimes broken	Native — no emulation layer
What you get	The exact Siemens S7 toolchain	IEC 61131-3 ladder/ST practice with a Siemens-style dialect, auto-graded
Best for	You need S7-PLCSIM itself for work or coursework	You want to learn and practise PLC programming on a Mac

The same answer applies if you searched for Codesys for Mac — the Codesys IDE is Windows-only too. If you are surveying PLC software for Mac in general, the realistic shortlist is short: a Windows VM for vendor tools, or a browser-based simulator that runs natively. If the goal is deploying an actual Siemens project, take the VM route. If the goal is learning ladder logic and structured text, the browser route gets you writing rungs today with none of the setup.

Workarounds

What Mac learners actually try — and why it fails

Parallels + Windows 11 + TIA Portal

$100 Parallels + ~$200 Windows + €1,200/yr TIA Portal. Keyboard layout breaks constantly. On M-series, the x86 emulation layer drags performance, and some TIA Portal V17 installs outright refuse to complete.

UTM with Windows 11 on ARM

Free, but ARM Windows emulation of x86 vendor tools is hit-and-miss. Spend a day and you might get a working stack; spend another day and an update breaks it.

Cloud Windows (Windows 365, AWS WorkSpaces)

Monthly fee. Latency on every click. Copy-paste between Mac and remote session is awkward. RDP on a restrictive network often fails.

Intel Mac + Boot Camp (pre-2020 only)

Apple removed Boot Camp from Apple Silicon. If you still have an Intel Mac this works, but you have to dedicate the boot session and reboot to cross back to macOS.

Borrowed Windows laptop

Works until you want to practise on a weekend and the laptop is at the office.

Cross-platform Codesys IDE

Codesys IDE is Windows-only too — same problem. The runtime is cross-platform, but that does not help you write code.

Native in the browser

What this tool does on Mac

True native browser

Runs in Safari, Chrome, Edge, or Firefox. No Rosetta, no Wine, no VM. Apple Silicon GPU drives the canvas at full hardware acceleration.

Cmd-shortcuts that work

⌘-based shortcuts for save, copy, paste, undo — the editor respects Mac conventions rather than fighting them.

PWA to the Dock

Install via Safari's Share → "Add to Dock" or Chrome's "Install App". Launches in its own window, shows up in Launchpad, works offline for cached scenarios.

What actually runs on Mac

Real PLC concepts, in Safari or Chrome

This is not a ladder toy. You write IEC 61131-3 ladder and structured text, a real scan-cycle runtime executes it, and the same logic transfers to TIA Portal or Studio 5000 when you eventually move to a Windows deployment machine. Here is what you practise on your Mac.

The scan cycle runs on the Mac's GPU-accelerated canvas — read inputs, solve logic, write outputs, repeat.

Your first rung — a contact driving a coil — graded live in the tab on macOS.

IEC 61131-3 ladder and structured text on Mac — the same standard TIA Portal and Codesys implement.

The ladder symbol set — contacts, coils, set/reset — identical to vendor tooling.

TON / TOF timers tick on the scan clock — the same behaviour you will see on real hardware.

The CPU / input / output / field-device model — the mental map you carry to a real PLC.

Getting started

Three steps on macOS

1. Open Safari or Chrome. Any version from the last three years works. M-series or Intel — does not matter.
2. Sign up free. Email and password. No credit card, no installers, no admin password prompt.
3. Pick a scenario. motor start/stop is the classic first rung. The scan cycle starts immediately.

Time from "I want to learn PLCs on my Mac" to "first rung running": under two minutes.

Performance expectations

What performance to expect on Mac

Excellent

Any M-series MacBook Air, Pro, Mac Mini, iMac, or Studio.
Intel Mac from 2018 onwards in Chrome or Safari.
External display via Thunderbolt — full 4K canvas runs smooth.

Good with caveats

Pre-2015 Intel Mac — works, but expect occasional stutter on heavy scenarios.
Safari on older macOS (<12) — upgrade to 14+ for best WebAssembly performance.
iPad with Magic Keyboard trackpad — usable, screen is the limit.

What you can practise on Mac

Every scenario runs in Safari or Chrome

Practice Allen-Bradley style code on Mac (AB simulator) or Siemens TIA Portal style (Siemens simulator) — no Windows VM required.

Questions

Mac PLC simulator FAQ