ABB PM891K01 (Order No. 3BSE053241R1) is a high-performance processor (CPU) module designed for the ABB AC 800M distributed control system and System 800xA platform. It serves as the core computing unit for demanding process control, power automation, and factory automation applications.

Key Specifications

• Model No.：PM891K01

• Order No.：3BSE053241R1

• Product Type：Processor Unit (CPU Module)

• Processor：MPC8270 RISC @ 450 MHz

• Performance：0.043 ms per 1000 boolean operations

• Memory：256 MB RAM (209 MB for application)

• Flash Memory：16 MB (firmware) + 64 MB (application)

• Power Supply：24 VDC (19.2–30 VDC)

• Power Consumption：660 mA typical / 750 mA max

Communication：

• 2× RJ45 Ethernet (redundant)
• 1× Isolated serial port (COM4)
• CEX-Bus (communication expansion)
• Optical Modulebus (for I/O)

I/O Expansion：Up to 84 S800 I/O modules

Operating Temp：0°C to +55°C

Protection：IP20

Certifications：CE, UL, CSA, EMC compliant

Weight：Approx. 0.75 kg

Main Features

• High-Speed Processing：Powerful 450MHz RISC CPU for fast logic and control execution.
• Large Memory：256MB RAM for handling large applications and thousands of I/O points.
• Redundant Ethernet：Dual built-in ports for high-availability control network.
• CEX-Bus Support：Expand communication interfaces (Profibus, Modbus, etc.).
• Optical Modulebus：Connects up to 7 clusters of S800 I/O for robust signal acquisition.
• Hot-Swap & Redundancy：Supports CPU redundancy for zero downtime.
• Built-in Diagnostics：LED status, real-time clock, fault monitoring, and SD card interfaceABB.
• Industrial Ruggedness：Wide temp range, EMC certified, IP20 protectionABB.

Typical Applications

• Power generation & grid automation (thermal, hydro, renewables)

• Oil & gas processing and refining

• Chemical & petrochemical plants

• Metallurgy & steel production

• Water & wastewater treatment

• Pharmaceutical & food processing

• Large-scale manufacturing automation

Package Includes

• PM891K01 CPU module (3BSE053241R1)
• Unit termination board
• Mounting hardware

• User documentation

• About us

• Guizhou Yuanmiao Automation Equipment Co., Ltd. is a professional supplier engaged in industrial automation spare parts and international trade. We mainly supply genuine DCS systems, PLC modules, synchronous relays, servo drives, robot spare parts and other widely used control components.

• We focus on world-famous brands such as ABB, Siemens, Woodward, Bently, GE and others. With reliable overseas sourcing, fast delivery and quality guarantee, we provide global customers with cost-effective products and professional foreign trade services.

• Our products are widely used in power plants, substations, oil and gas, metallurgy, data centers, marine and manufacturing industries. We are committed to becoming a trustworthy one-stop partner for industrial automation spare parts.