Test the logic
before it runs the line.
PLC Studio simulates full Rockwell Logix 5000 projects in your browser — Ladder, Structured Text, Function Block, and SFC — with no controller attached. PLC-Trace maps every cause and effect in an exported L5X, so you know what a rung touches before you change it.
From AU$285 per seat, per year — launch pricing until 31 March 2027.
Runs entirely on your machine. Nothing uploaded, nothing phoned home.
You don't get internet on the plant floor.
Most sites worth automating won't let a laptop dial out — and the ones that will still shouldn't have to. PLC Studio and PLC-Trace run as a single file, in the browser you already have. No install, no agent calling out, no live connection required to do the work in front of you. Load a project, do the work, close the tab.
Simulate the project, not just read it.
Open a Logix 5000 L5X export and step through the logic exactly as the controller would run it — rungs, tags, and all four IEC languages. Edit Ladder and Structured Text outright; adjust step and transition content in SFC and inputs and outputs in Function Block, without restructuring the diagram itself. Watch what happens, throw it away if it's wrong. No PLC required, and nothing you didn't already have leaves your machine.
- Ladder, Structured Text, Function Block, and SFC in one simulator
- Single file, any modern browser, fully offline
- View any project free; simulation and editing unlock on the paid tier
See what a rung actually touches.
Feed PLC-Trace an L5X export and it builds the full cause-and-effect map for the project: every input that can set an output, every rung a tag runs through, every dependency you'd otherwise trace by eye. Use it before the change window, not after the fault.
- Static dependency tracing across the whole project
- Built for fault-finding and change-impact review
- Free tier traces the included demo project; your own L5X exports need the paid tier
free vs full
See everything free.
Unlock your own projects on the paid tier.
Free
- View any PLC Studio project — Controller Organizer, all four IEC languages — no simulation or editing
- Run the bundled demo project through PLC-Trace
- PLC-acd, our free companion tool that converts Rockwell's native .ACD project files to L5X exports for use in PLC Studio and PLC-Trace
- Full manuals for every tool
Full
- PLC Studio — simulate and edit your own L5X projects, all four IEC languages
- PLC-Trace — full dependency tracing on your own L5X exports
- PLC-acd included
- Full manuals for every tool
pricing
Launch pricing until 31 March 2027.
Per seat, per year. A seat is one engineer on one computer, and covers both PLC Studio and PLC-Trace.
| Launch price | Standard price from 1 Apr 2027 | |
|---|---|---|
| First seat | AU$285 | AU$495 |
| Each additional seat | AU$150 | AU$225 |
3 seats: AU$585/yr (standard AU$945)
5 seats: AU$885/yr (standard AU$1,395)
Prices in Australian dollars. Launch pricing applies to licences bought on or before 31 March 2027.
Ready to buy, or need a quote for more seats? Email [email protected].
Controls engineers
Edit, test, and export corrections during or after commissioning.
Integrators
Hand over documentation a client can verify, without handing over your source.
Training providers
Teach Logix 5000 without risking a live controller — or owning one.
who built this
Forty-five years of hands-on control systems work
— and the tools I always wished I had.
PLC Sandbox comes out of decades spent doing exactly this work — commissioning, fault-finding, and reviewing Logix 5000 projects on real plants. PLC Studio and PLC-Trace exist because the tools that should have made that work easier never quite did: simulators that needed a live controller, trace tools priced past what the job was worth, or software built on the assumption someone else was watching over your shoulder. These were built to fix that — for offline sites, tight change windows, and engineers who'd rather test the logic than guess at it.
get the trial
Tell us where to send it.
- Enter your name and email below.
- We'll email you the current trial build.
- Open it in your browser — nothing to install.
Thanks — we'll be in touch shortly.
First email from a new sender can land in spam — worth a quick check if it doesn't show up in a few minutes.
Prefer email? [email protected]