Features of the 3RK3 central units MSS 3RK3
Basic Advanced
ASIsafe ba‐
sic
ASIsafe ex‐
tended
Diagnosis using AS-Interface (CTT2 protocol) ‑ ✓ ✓ ✓
Diagnostics using the diagnostics display ✓
1)
✓
2)
✓
2)
✓
2)
1)
Product version E01 and higher of the diagnostics display
2)
Product version E03 or FW version V1.1.x and higher of the diagnostics display
3)
Product version E04 and higher of the central unit
Function elements in the logic diagram MSS 3RK3
Basic Advanced ASIsafe ba‐
sic
ASIsafe ex‐
tended
Cell functions
• Input cell
✓ ✓ ✓ ✓
• Output cell
✓ ✓ ✓ ✓
Monitoring functions
• Universal monitoring
‑ ✓ ✓ ✓
• EMERGENCY STOP
✓ ✓ ✓ ✓
• ESPE (electro-sensitive protective equipment)
✓ ✓ ✓ ✓
• Safety shutdown mat (NC principle)
✓ ✓ ✓ ✓
• Safety shutdown mat (cross-circuit principle)
✓ ✓ ✓ ✓
• Protective door
✓ ✓ ✓ ✓
• Protective door with tumbler
‑ ✓ ✓ ✓
• Acknowledgment button
✓ ✓ ✓ ✓
• Two-hand operation
✓ ✓ ✓ ✓
• Mode selector switch
✓ ✓ ✓ ✓
• AS‑i 2F‑DI (safety-related AS-i input)
‑ ✓ ✓ ✓
Muting functions
• Muting (2-sensor-parallel)
‑ ✓ ✓ ✓
• Muting (4-sensor-parallel)
‑ ✓ ✓ ✓
• Muting (4-sensor-sequential)
‑ ✓ ✓ ✓
Status functions
• Device status
✓ ✓ ✓ ✓
• Element status
‑ ✓ ✓ ✓
Control functions
• Device command
✓ ✓ ✓ ✓
Logic functions
• AND
✓ ✓ ✓ ✓
• OR
✓ ✓ ✓ ✓
• XOR
✓ ✓ ✓ ✓
• NAND
✓ ✓ ✓ ✓
Overview
3.6 Features and functions of the MSS 3RK3
SIRIUS 3RK3 Modular Safety System
48 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
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