Switzerland The ABB AC800M 3BSE053240R1 PM891 is a high-performance processor unit designed for the AC800M series of programmable logic controllers (PLCs). This unit serves as the central processing core for industrial automation systems, offering advanced control capabilities, robust communication interfaces, and high reliability for demanding applications.
| Parameter | Specification |
|---|---|
| Processor | Power Architecture-based, 800 MHz |
| Flash Memory | 16 MB |
| SDRAM | 256 MB with integrity check |
| Communication Ports | 2x Ethernet (RJ45), 1x Serial (RJ45) |
| Redundancy Support | Yes (CPU, CEX-Bus, Communication) |
| Power Dissipation | 15.8 W typical |
| Current Consumption | 660 mA typical |
| Mounting | DIN rail |
High-Performance Processing: Equipped with a Power Architecture-based microprocessor operating at 800 MHz, the PM891 delivers rapid processing speeds essential for complex control tasks.
Memory Configuration: The unit includes 16 MB of flash PROM for firmware storage and 256 MB of DDR2 SDRAM with integrity check, ensuring efficient data handling and system stability.
Communication Ports: Features two RJ45 Ethernet ports (CN1, CN2) for control network connectivity and one isolated RJ45 serial port (COM4) for configuration tools.
Redundancy Support: Supports CPU redundancy, CEX-Bus redundancy, and communication interface redundancy, enhancing system availability and fault tolerance.
Compact and Robust Design: The monolithic unit integrates power supply, CPU boards, and unit termination in a compact form factor, designed for industrial environments.
The PM891 processor unit comprises:
Microprocessor: Handles all control and processing tasks.
Memory Modules: Includes flash PROM for firmware and SDRAM for data processing.
Communication Interfaces: Ethernet and serial ports for network connectivity and configuration.
Redundancy Modules: Facilitates system redundancy to ensure continuous operation.
Power Supply and Termination: Integrated within the unit for space-saving and reliability.
Process Automation: Control of continuous and batch processes in industries such as chemicals, pharmaceuticals, and food processing.
Manufacturing Systems: Automation of production lines and machinery in automotive, electronics, and consumer goods sectors.
Energy Management: Monitoring and control of power generation and distribution systems.
Infrastructure Projects: Automation in water treatment plants, HVAC systems, and building management systems.
Installation: The PM891 unit is designed for DIN rail mounting, facilitating easy integration into existing control panels.
Maintenance: Regular firmware updates and system diagnostics should be performed to ensure optimal performance.
Redundancy Testing: Periodic testing of redundancy configurations is recommended to verify system reliability.
Software Compatibility: The PM891 processor unit is compatible with ABB's Control Builder and 800xA systems, providing a comprehensive environment for system configuration and programming.
Certifications: The unit complies with international standards for industrial automation, ensuring quality and reliability.
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