ABB PM891K01
ABB PM891K01 3BSE053241R1 Processor Unit
Product Description
The ABB PM891K01 3BSE053241R1 is a high – performance processor unit designed for industrial automation and control applications. It is an integral part of ABB’s AC 800M control system and the ABB Ability System 800xa platform. This module serves as the “brain” of the control system, responsible for processing information from sensors, executing control programs, and managing communication with other components in the system.
Equipped with a powerful 450 MHz MPC 8270 (some sources indicate Freescale PowerQUICC III MPC 8641) processor, it can handle complex control algorithms and large – scale data processing with ease, making it suitable for demanding industrial scenarios. It features 256 MB of RAM for efficient handling of real – time operations and 512 MB of flash memory (as per some sources) for storing control programs, configuration data, and historical information.
The PM891K01 has built – in redundancy features, which enhance system availability. In a redundant configuration, typically two PM891 controllers work in tandem, with one acting as the primary and the other as the backup. This setup ensures continuous operation even in the event of a hardware failure in one of the units.
It offers multiple communication interfaces. There are two 10/100 Mbit/s Ethernet ports, enabling high – speed and reliable communication with other network – connected devices such as I/O modules, HMIs (Human – Machine Interfaces), and other control systems. Additionally, it has two RS – 232/485 serial ports, which can be used for communication with legacy devices or for specific point – to – point connections. The module also supports various communication protocols like TCP/IP, UDP/IP, and can interface with industrial networks using protocols such as Profibus and Modbus, allowing seamless integration within diverse industrial setups.
The unit has a monolithic design, integrating the power supply, CPU boards, and unit termination. This not only simplifies installation and maintenance but also contributes to a more compact footprint, making it suitable for space – constrained installations. It also comes with built – in diagnostic functions and a comprehensive work log. A built – in web server allows for remote access and monitoring, which helps in quickly identifying and resolving potential issues, thereby reducing system downtime and maintenance costs.
Product Parameters
- Processor: MPC 8270 (or Freescale PowerQUICC III MPC 8641 as per some sources) with a clock speed of 450 MHz.
- Memory:
- RAM: 256 MB.
- Flash Memory: 512 MB (as per some sources).
- Communication Interfaces:
- Ethernet: 2 x 10/100 Mbit/s ports.
- Serial: 2 x RS – 232/485 ports.
- Power Supply: Operates on 24 VDC, with an acceptable voltage range of 19.2 – 30 VDC.
- I/O Support: Can support a significant number of I/O points (up to 64 as per some sources), facilitating connection to a wide range of field devices.
- Processing Time: Delivers a performance of 0.043 milliseconds (as per some sources), ensuring quick and precise control operations.
- Redundancy: Supports redundant configurations for enhanced system availability.
Product Specifications
- Model Number: PM891K01.
- Product ID: 3BSE053241R1.
- Manufacturer: ABB.
- Product Line: ABB Ability System 800xa.
- Dimensions:
- Depth: 280 mm.
- Height: 105 mm.
- Width: 245 mm.
- Weight: 2.1 kg.
- Operating Temperature Range: Designed to operate reliably within a temperature range suitable for industrial environments, although the exact range may need to be confirmed with ABB documentation.
- Certifications: Certified for use in hazardous areas (ATEX Zone 2 as per some sources), ensuring compliance with safety standards in potentially explosive environments. It also likely complies with other international standards such as CE, UL, and IEC, which guarantee its quality, safety, and compatibility in global industrial applications.
