Open Industry Project | Browser & Native Industrial Simulator

SEC-01 / CODE-TO-MOTION

Program it like a real PLC.

Write your control logic in IEC 61131-3 Structured Text, a working subset of the same standard language industrial PLCs run, and it drives the line directly, one scan at a time.

(* IEC 61131-3 Structured Text *) SCAN 0413

VAR_INPUT
  Start    : BOOL;  (* start button  *)
  Stop     : BOOL;  (* stop (NC)     *)
  BoxAtEye : BOOL;  (* diverter eye  *)
END_VAR
VAR_OUTPUT
  Belt     : REAL;  (* setpoint m/s  *)
  Divert   : BOOL;  (* diverter coil *)
END_VAR
VAR
  Running  : BOOL;
  Kick     : TP;    (* 0.4 s pulse   *)
END_VAR

(* seal-in latch: Start sets, Stop clears *)
Running := (Start OR Running) AND Stop;
Belt    := SEL(Running, 0.0, 2.0);

(* each box trips the eye -> a 0.4 s kick *)
Kick(IN := BoxAtEye AND Running, PT := T#400ms);
Divert  := Kick.Q;

RUN · scan 1.0 ms · belt = 2.0 m/s

A working subset of IEC 61131-3 Structured Text, the language real PLCs run
Wire variables to sensors, conveyors, and robots by tag
See each scan cycle execute on its own clock

SEC-02 / CAPABILITIES

From abstract to physical.

autStand builds systems like these on real plant floors. This runs them in a browser tab.

Real 3D physics

Conveyors, sensors, six-axis robots, and boxes simulated with a Jolt physics engine compiled to WebAssembly. Drag parts in from the catalog and press play.

Wire it like a real cell

Bind push-buttons, photo-eyes, diverters, and stack lights to your program by tag, and the running scan drives them as the line moves.

Yours to run

Free and open source. Fork it, self-host it, or run it offline with no account and no license to buy.

Browse the source →

SEC-03 / TWO SURFACES

Run it your way.

One project, two surfaces — pick whichever fits the job. Run it in a browser tab, or install the native build for real PLCs and hardware in the loop.

IN THE BROWSER

Browser

Nothing to install. Open a tab and start building.

Runs on any modern browser, on any OS
Build in 3D and program in Structured Text in-process
Share a link, or self-host it on your own server

Launch the simulator

NATIVE BUILD

Native

The full Godot engine on your machine, wired to real hardware.

Drive the sim from real PLCs: Allen-Bradley, Siemens S7, Modbus, Beckhoff, OPC UA
Talk to Universal Robots controllers over RTDE, and MQTT devices
Hardware-in-the-loop and native performance, no sandbox limits

Get the native version

SEC-04 / START

Build a line in your browser.

No account, no download. Open the simulator and drop in your first conveyor.