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 feedback before accepting green lamp, amber lamp, red lamp.
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 Green lamp; PLC output Amber lamp; PLC output Red lamp
| Signal | PLC direction | Type / range |
|---|---|---|
| Green lamp green | output | bool |
| Amber lamp amber | output | bool |
| Red lamp red | output | bool |
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.