SICK ALIS - Reflection Light Barrier - Trigger Signal

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8027605/V1-0/2022-03| SICKS Y S T E M D E S C R I P T I O N | ALIS
Subject to change without notice
4 SYSTEM COMPONENTS
4.5 Reflection Light Barrier - Trigger Signal
Fig. 18: Reflection light barrier
Function
● Used for optical contact less detection of objects
● A reflector is required for the function
● The emitted light signal is reflected back via a reflector
● The emitter and receiver are arranged in parallel in the housing of the retro-reflective
light barrier
● If the light beam is interrupted by an object, a switching signal is output to the MSC800
system controller
Trigger signal
● The track and trace system requires a trigger signal
● The trigger signal is supplied either SICK or by customer
● It is processed by the MSC800 system controller
● The trigger signal activates the connected readers and opens the reading gate
Legend
1
Reflection light barrier
2
Reflector