PM891K01 3BSE053241R1  High performance redundant central processing unit

The PM891K01 3BSE053241R1 is a high-performance redundant central processing unit (CPU) from ABB, which is an important component of ABB's System 800xA distributed control system. Designed to meet the needs of complex control and automation applications in oil and gas, power generation, chemical processing, and other industries.

Its main features include:

High performance: The PM891K01 is equipped with a powerful multi-core processor and lots of RAM, enabling it to handle multiple tasks at the same time and process large amounts of data quickly. This high-performance design ensures that the processor can handle a wide range of complex industrial automation applications.

Redundant design: The processor has built-in redundancy to provide increased availability and reliability. The redundant design means that when the main processor fails, the backup processor can quickly take over, ensuring continuous operation of the system, reducing downtime and increasing productivity.

Communication capabilities: The PM891K01 supports a variety of communication protocols, such as Ethernet, Profibus, and Modbus, facilitating communication with various I/O modules and other device interfaces.

Diagnostics and Troubleshooting: This processor unit features advanced diagnostics and troubleshooting capabilities, including comprehensive event logging and a built-in web server for remote access and monitoring to help quickly identify and resolve potential issues.

In addition, PM891K01 3BSE053241R1 is also widely used in power systems, metal processing, food and beverage, pharmaceutical, paper, textile, automotive, railway and Marine industries to meet the needs of complex control and automation applications.

PM891K01 3BSE053241R1 technical parameters mainly include the following points:

High performance: The PM891K01 is equipped with a powerful multi-core processor and lots of RAM, allowing it to handle multiple tasks at the same time and process large amounts of data quickly. This high-performance feature enables it to meet the needs of complex control and automation applications.

Redundant design: The processor has built-in redundancy to ensure high system availability and reliability in the event of hardware failure.

Communication capabilities: The PM891K01 supports multiple communication protocols such as Ethernet, Profibus, and Modbus, enhancing its integration with other systems and devices.

Diagnostics and Troubleshooting: Advanced diagnostics and troubleshooting features, including comprehensive event logging and a built-in web server for remote access and monitoring.

Working power supply: Support AC220V, DC48V, DC24V, DC12V and other working power supply.

Interfaces and ports:

There are two RJ45 Ethernet ports (CN1, CN2) and one RJ45 serial port (COM4) for connecting to the control network. The COM4 port is isolated and used for configuration tools.

CPU redundancy is supported for higher availability (CPU, CEX bus, communication interface, and S800 I/O).

Communication Extension Bus (CEX-Bus) is used to extend the onboard communication port through the communication interface unit.

Each PM891 is equipped with a unique Ethernet address that provides a hardware identity for the device.

In addition, the PM891K01 3BSE053241R1 also has a built-in redundant Ethernet communication port, which has the characteristics of high performance and large application memory.