ABB 3BSE053242R1 PM891K02 AC 800M Processor Unit

ABB 3BSE053242R1 PM891K02 AC 800M Processor Unit

Description

The ABB AC 800M series is a versatile and reliable family of controllers designed for Industrial Automation applications. It consists of rail-mounted modules, including CPUs, communication modules, power supply modules, and various accessories. The AC 800M offers scalable, cost-effective design with fault tolerance for maximum plant availability. Its open architecture reduces lifecycle costs and integrates with supervisory systems and intelligent devices. The AC 800M supports both process and power automation and safety within a common environment, making it suitable for a wide range of industries such as oil, gas, chemicals, power, and manufacturing. Each CPU module is equipped with two Ethernet ports for communication with other controllers and for interaction with operators, engineers, managers, and higher-level applications. A Flash memory card can be inserted into a slot in the CPU module to store the application and data. The connectivity and expansion options make the AC 800M exceptionally open and scalable. It can easily connect to the surrounding world of supervisory systems and intelligent devices of all kinds and adapt to changing requirements as the process it controls changes or expands.

Processors

The processors in the AC 800M series play a crucial role in the overall functionality of the system. The PM860 is a key processor unit, featuring an Intel® Pentium® M 1.2 GHz dual-core processor. It has 512 MB DRAM, expandable to 2 GB, and 128 MB Flash memory. The I/O capacity supports up to 12 CI8xx series I/O modules with a total point number ≤ 4096. The communication interfaces include 2 × 100/1000 Mbps Ethernet, 1 × RS-232/485, and 1 × CompactFlash card slot. It supports hot standby redundancy when paired with PM861/PM864 units. The PM864A is another important processor unit, equipped with a 96 MHz CPU and 32 MB memory. It has two RJ45 Ethernet ports and two RS-232C serial ports. The processor unit can be used in non-redundant configuration for cost-effective applications. PM864A is ideal for applications requiring high processing power and memory. PM866 is a high-end processor unit with a 300 MHz industrial processor, 128 MB RAM, and 64 MB flash memory. It offers advanced communication capabilities with Ethernet, ModuleBus, RS-232, and RNRP support. PM866 is suitable for complex control tasks in large-scale industrial automation systems. PM891 is a high-performance processor unit with a MPC8270 processor and 256 MB RAM. It provides exceptional processing power for demanding control applications. PM891 supports RNRP redundancy and offers fast task execution with cycle times as low as 1 ms. It is designed for high-integrity control systems requiring SIL certification. The PM851A has an MPC860 processor, offering basic processing capabilities for standard automation tasks. PM857 features an MPC866 processor and supports SIL3 certification, making it suitable for safety-critical applications. PM863 also has an MPC866 processor with 32 MB RAM, supporting SIL3 certification and redundancy. PM867 is equipped with an MPC866 processor and 64 MB RAM, supporting SIL3 certification and offering extended memory for complex applications.

Communication modules and Interconnection Units

The communication modules and interconnection units in the AC 800M series are vital for connecting the controllers to various devices and networks. The CI853 module provides RS-232 C communication, supporting standard serial communication for connecting to devices like HMIs, PLCs, and other serial devices. CI854A/B modules support PROFIBUS DP communication, enabling integration with PROFIBUS networks and connecting to devices such as sensors, actuators, and other PROFIBUS-compatible equipment. CI857 is an INSUM module for Ethernet communication, offering high-speed data transfer and integration with Ethernet-based systems. CI858 is a DriveBus module for communication with ABB drives, facilitating precise control and monitoring of motor drives in automation systems. CI860 supports FOUNDATION FIELDBUS communication, allowing integration with fieldbus devices and enabling efficient data exchange in process automation applications. CI867/CI867A modules support MODBUS TCP communication, providing compatibility with MODBUS TCP/IP networks and connecting to a wide range of industrial devices and systems. The interconnection units in the AC 800M series serve as the backbone for connecting various modules and components within the system. They provide the necessary infrastructure for data exchange and communication between different parts of the controller. The TP830 baseplate is a key interconnection unit that hosts the processor module and establishes connections with other modules. It facilitates power distribution and signal communication between the processor and I/O modules. The CEX-Bus interconnection system enables high-speed data transfer between the processor and communication modules, ensuring efficient communication within the controller. The ModuleBus interconnection allows connection to S800 I/O modules, providing flexible I/O expansion options for the system. These interconnection units ensure seamless integration of different modules, enabling the AC 800M series to function as a cohesive and efficient automation system. The combination of reliable interconnection units, powerful processors, versatile communication modules, and flexible I/O options makes the ABB AC 800M series an ideal choice for a wide range of industrial automation applications.

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