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
| Signal | PLC direction | Type / range |
|---|---|---|
| Field clear clear | input | bool |
| Safety reset reset | output | bool |
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.
Free first success
Put the light curtain pair 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
Keep building
Related components and scenarios
safety
Guard fence
It has no PLC-driven moving part; its value is spatial context, access planning and realistic scene composition.
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Safety bollard
It has no PLC-driven moving part; its value is spatial context, access planning and realistic scene composition.
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Safety cone
It has no PLC-driven moving part; its value is spatial context, access planning and realistic scene composition.