PLC Simulator
All 143 components

safety · safety model

Light curtain pair

The light curtain pair is a reusable 3D safety component for guarded machinery and access zones. In this simulator it supports safety-state training and permissive visibility.

2 I/O points1 snap portsPLC-driven state
Isolated component viewPROP_LightCurtainPair_ROOT

Motion and state

Its state is used to practise permissive and trip reasoning; it is not a safety-rated engineering model.

PLC control pattern

Commission it by proving field clear before accepting safety reset.

Fault practice

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

Signal map

I/O you can reason about

PLC input Field clear; PLC output Safety reset

SignalPLC directionType / range
Field clear
clear
inputbool
Safety reset
reset
outputbool

Fault and recovery exercise

Make abnormal states part of the sequence

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

stuck-onstuck-offmisaligned

Engineering boundary

Training model only. It does not perform a machinery risk assessment, calculate performance level or SIL, replace a safety PLC, or validate a real safety function.