ABB|07KR51 |Redundant PLC

Description

• The 07KR51-HSB is a redundant PLC from ABB’s AC 31 series, designed for Hot Stand-By (HSB) functionality in industrial automation
• It supports master/slave configurations for fault-tolerant operation on the CS31 bus

Features

• Redundancy: Seamless failover (<3 cycle times) from master to slave unit
• Flexible I/O: Supports local/extensions and remote I/O units (e.g., ICMK14F1, DC551)
• Synchronization: Dual-CPU sync via internal bits (%O62.08–%O62.13) and shared data words (%IW/QW63.08–15)
• Compatibility: Works with S500 I/O modules using dedicated function blocks (e.g., DC551S, DI524)

Technical Specifications

• Power Supply:

  • 24 V DC (19.2–30 V) or 120/230 V AC (97.75–253 V)
  • Consumption: 80 mA (typical, standalone) to 400 mA (max config)

• I/O Capacity:

  • Inputs: 8 digital (24 V DC, PNP/NPN, 7–9 mA per point)
  • Outputs: 6 relay (250 V AC/2 A, 6 A total)

• Environmental:

  • Operating temp: 0°C to +55°C (horizontal) or +40°C (vertical)
  • Humidity: ≤95% (non-condensing)
  • Protection: IP20, UL V2

• Communication:

  • CS31 bus (RS485, 500 m max, 120 Ω termination)
  • Serial ports: RS232/RS485 for programming

• Mechanical:

  • Dimensions: 120 x 93 x 84 mm
  • Weight: 400 g (24 V DC) / 800 g (120/230 V AC)