ABB PM891K01 3BSE053241R1 Redundant Central Processor Unit

Description

• Redundancy:
  • CPU Redundancy: Supports dual-processor redundant configuration. When the primary processor fails, the backup processor can seamlessly take over to ensure continuous system operation.
  • CEX Bus Redundancy: The communication expansion bus (CEX-Bus) can be interconnected with the BC810 unit to segment the bus and enhance fault tolerance.
• Expansion Capability:
  • CEX Bus: Supports connection of up to 7 S800 I/O module clusters (each cluster supports up to 12 units) via optical Modulebus for flexible I/O point expansion.
• Physical Characteristics:
  • Protection Class: IP20 (requires installation in a protective cabinet).
  • Dimensions: Approximately 280 mm (depth) × 245 mm (width) × 105 mm (height).
  • Weight: 2.1 kg, featuring a compact design for easy integration.
• Operating Environment:
  • Temperature Range: -20°C to +60°C (some models support -40°C to +70°C), adapting to extreme industrial conditions.
• Safety and Compliance:
  • Standards: Meets IEC 61508 SIL 2/3 standards, suitable for safety-critical applications such as emergency shutdown systems (ESD).

Functional Characteristics

• High Performance: Capable of handling millisecond-level periodic tasks, ensuring real-time control performance.
• Redundancy Design: Provides high availability and reliability through redundant CPU, power supply, and network configurations, minimizing downtime.
• Modular Design: Adopts a rail-mounted modular design, including CPU, communication modules, power modules, and accessories, facilitating easy installation, maintenance, and upgrades.
• Advanced Diagnostics: Equipped with LED indicators, an INIT button, and a built-in web server for real-time monitoring of communication status, faults, and anomalies, enabling quick issue identification and resolution.
• Flexible Programming: Supports programming and configuration via Compact Control Builder software, which is highly integrated into the Windows system. It offers offline simulation and debugging functions and supports five programming languages under the IEC 61131-3 standard (function block diagram, ladder diagram, sequential function chart, instruction list, and structured text) as well as ABB’s proprietary Control Module language.
• Security Features: Includes a security digital interface (SDI) to enhance data and access security.

Application Scenarios

• Process Control: Used in chemical plants, pharmaceutical factories, and other process automation and monitoring applications to precisely control and monitor parameters such as temperature, pressure, and flow during production, ensuring process stability and safety.
• Power and Energy: Employed in power plants and substations to monitor and control the operating status of generators, transformers, and other equipment, enabling automated management and optimized operation of power systems.
• Petroleum and Natural Gas: Utilized for monitoring and controlling oil and gas extraction and pipeline transportation.
• Smart Manufacturing: Serves as the main controller for complex production lines in automotive manufacturing, machining, and other manufacturing sectors, achieving multi-device coordination and real-time optimization to enhance production efficiency and quality while reducing labor costs.
• Infrastructure Projects: Applied in water treatment, sewage treatment, and other infrastructure projects for remote monitoring and automated control of equipment, safeguarding normal infrastructure operation.