CCST 23 — Safety Light Curtain Muting

Briefing

A light curtain protects a robot cell. During part loading (MUTE_REQUEST), the curtain must be bypassed briefly. Only mute if MUTE_REQUEST is active AND the MUTE_AUTH permissive is held. Output MUTED signals the bypass state.

Objectives

• SAFE_ZONE_CLEAR is TRUE when curtain is not broken OR muting is active
• MUTED is TRUE only when both MUTE_REQUEST and MUTE_AUTH are TRUE
• CURTAIN_TRIPPED drops SAFE_ZONE_CLEAR when not muted

I/O Table

Your program will be tested against:

All test cases run automatically when you submit. Assertions are hidden until you pass.

1. #1Zone clear when curtain not tripped

   Zone clear when curtain not tripped

2. #2Zone clear when muted despite curtain

   Zone clear when muted despite curtain

3. #3No muting without auth

   No muting without auth