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Description
Overview
Essential details：AC800M 3BSE053240R1 PM891 PM891 Processor 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. The processor is designed to meet the needs of complex control and automation applications in oil and gas, power generation, chemical processing, and other industries.
Regarding the PM891 processor unit, it is a single chip unit with a power supply, CPU board and unit terminal. The unit contains a microprocessor and RAM memory, real-time clock, LED indicator, INIT button, and secure digital interface. In addition, it has two RJ45 Ethernet ports for connecting to the control network (CN1, CN2) and one RJ45 serial port (COM4). It is worth noting that this processor unit does not contain an internal battery, and the COM4 port is isolated for configuration tool use.
In terms of performance, the PM891K01 3BSE053241R1 is equipped with a powerful multi-core processor and lots of RAM, allowing it to handle multiple tasks simultaneously and process large amounts of data quickly. In addition, the processor supports CPU redundancy, providing higher availability, including the CPU, cex bus, communication interface, and S800 I/O.
Overall, the PM891K01 3BSE053241R1 is a high-performance, highly reliable processor unit for a wide range of applications requiring complex control and automation.
AC800M 3BSE053240R1 PM891
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AC800M 3BSE053240R1 PM891 PM891 Processor Unit
The main features of the PM891K01 3BSE053241R1 processor unit are as follows:
High performance: This processor unit 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 design ensures that the processor can handle complex control and automation applications.
Redundant design: The PM891K01 has built-in redundancy, which means that it also ensures high system availability and reliability in the event of hardware failure. This redundancy design is usually achieved by two PM891 controllers working together as a pair of redundant controllers, with one acting as the primary controller and the other as the standby controller.
Communication capabilities: This processor unit supports a variety of communication protocols such as Ethernet, Profibus and Modbus. This allows it to communicate with various I/O modules and other device interfaces, enabling flexible and efficient system integration.
Ethernet communication port: PM891K01 built-in redundant Ethernet communication port, providing stable network connection and high-speed data transmission capability.
Scalability: The processor unit supports the expansion of the onboard communication port through the communication interface unit, and can be interconnected with other units through the CEX bus, thus improving the scalability of the system.
Full EMC certification: The processor unit is fully certified for electromagnetic compatibility (EMC), ensuring stable operation and electromagnetic compatibility in different environments.
In summary, the main features of the PM891K01 3BSE053241R1 processor unit include high performance, redundancy design, powerful communication capabilities, stable Ethernet communication, good scalability and comprehensive EMC certification. These characteristics make it ideal for complex control and automation applications in the oil and gas, power generation, chemical processing and other industries.
