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Live training lab

Run your first real PLC program.

No video and no pretend switch. This is the actual Beginner 01 simulator, running the same program and I/O tests as the full course.

  1. 01Run
  2. 02Test ON
  3. 03Test OFF

Program · Main

Switch controls light

IEC 61131-3 ST
VAR
  SWITCH AT %I0.0 : BOOL;
  LIGHT  AT %Q0.0 : BOOL;
END_VAR

LIGHT := SWITCH;

PLC I/O bench

CPU RUN

SCAN 20 ms · IEC runtime

INPUT · %I0.0

SWITCH

OUTPUT · %Q0.0

LIGHT

Next test

Run the program to start the PLC scan.

Browser-based PLC training · Nothing to install · Works on mobile and desktopPrivacy & analytics

Runnable simulator field guide

Try the PLC simulator: test checklist

Direct answer

The visitor can predict, run and explain the first input-to-output behavior, then select the next appropriate practice surface.

Written for first-time visitors who want to run a real PLC exercise before creating an account or choosing a course.

Adult learners and an instructor using PLC racks and laptops while studying first browser PLC program and observable machine result in an industrial automation lab

System map / 02

Six checkpoints for Try the PLC simulator

NODE 01observable

Scenario setup

Device and browser readiness, exercise objective, starting state, input action, expected output, stop behavior and next-step intent.

NODE 02observable

I/O and state map

First user action through editable PLC logic and scan execution to visible I/O and machine response.

NODE 03observable

Normal run

The starter program run, changed once and repeated from reset with the result explained.

NODE 04observable

Boundary run

Blocked script, unsupported browser, hidden input, accidental edit, stale state, lost focus and assumption that animation proves hardware.

NODE 05observable

Injected fault

A browser, interaction, program, runtime, input, output, machine or expectation mismatch.

NODE 06observable

Target check

The working behavior saved or recreated in lessons, scenarios and the required target environment.

Continue the signal path / 08

Related practice and reference pages

Online PLC simulatorGuided PLC lessonsPLC practice exercisesCurrent access and pricing

Primary and first-party references