PLC Simulator
All 151 components

operator controls · indicator model

Alarm siren

The alarm siren is a reusable 3D operator controls component for operator controls layouts. In this simulator it adds a reusable, correctly scaled object to a complete automation scene.

2 I/O points1 snap portsPLC-driven state

Start with the public scenario; create a free account when you want to save progress.

Isolated component viewPROP_AlarmSiren_ROOT

Explore Alarm siren in 3D

Load the interactive model when you are ready to rotate, inspect and operate it. Deferring WebGL keeps the reference page fast.

Motion and state

Its visible state changes with simulated I/O, making status and diagnosis readable in the scene.

PLC control pattern

Commission it by proving active feedback before accepting enable.

Fault practice

Inject stuck-on, stuck-off states and require the PLC sequence to detect, stop and recover deliberately.

Signal map

I/O you can reason about

PLC output Enable; PLC input Active feedback

SignalPLC directionType / range
Enable
enable
outputbool
Active feedback
active
inputbool

Fault and recovery exercise

Make abnormal states part of the sequence

Inject stuck-on, stuck-off states and require the PLC sequence to detect, stop and recover deliberately.

stuck-onstuck-off

Engineering boundary

The model teaches PLC sequence behaviour and diagnosis. Confirm ratings, wiring, guarding, process calculations and commissioning limits against the real manufacturer documentation and site design.

Free first success

Put the alarm siren into a working control sequence

Open a related browser scenario, run the PLC logic and see the component state respond. Start without installing software or entering a card.

No installNo credit cardImmediate pass/fail feedback