ABB AC800M PM851 Processor Module

The ABB AC800M PM851 processor module is part of the AC800M series fieldbus controller launched by ABB in 2002. This module has been widely applied in the field of industrial automation due to its high performance and reliability, and is particularly suitable for process control and manufacturing.

   Main features: Processor: It adopts a RISC 32-bit real-time multitasking microprocessor, which has powerful data processing capabilities. Memory configuration: Equipped with 16 MB RAM, it features error detection and correction functions to ensure the accuracy of data processing. Communication interface: Supports multiple communication protocols, including MasterBus 300, COMLI, Modbus and Siemens 3964R, etc., facilitating integration with other devices and systems. Redundancy function: Supports controller redundancy, communication redundancy and power supply redundancy to enhance the reliability and stability of the system. Installation method: It adopts DIN rail mounting, which is convenient for installation and maintenance. Programming and configuration: Programming and configuration are carried out through the Compact Control Builder programming software, which supports multiple programming languages and realizes an intuitive and easy-to-use interface and a rich library of functional blocks. Model difference: PM851K01:8M memory version. PM851AK01: A version with specific features, such as a long description of 24MHz and 8MB of memory. The PM851 processor module is widely used in multiple industrial fields such as petrochemicals, power, and metallurgy, and can meet various complex control requirements

The PM851 processor module is represented and sold by several companies, such as the sales department of Shanghai Dubai Automation Technology Co., Ltd. and Zhonghai De Electric (Fujian) Group Co., LTD., providing original factory-certified products and technical support. To sum up, the ABB AC800M PM851 processor module is a powerful and highly reliable industrial automation control device, suitable for a variety of industrial application scenarios.

The ABB AC800M PM851 processor module has the advantages of powerful processing capacity, flexible scalability, high reliability, as well as easy programming and maintenance. The following is a detailed introduction: Powerful processing capability and high-performance CPU: PM851 adopts a high-performance CPU, capable of achieving high-speed data processing and control, meeting the demands of complex control tasks. Large-capacity memory: Equipped with 8MB RAM and 2.836MB working memory, it can store a large number of applications and data, enhancing system performance. Flexible expandable modular design: Adopting a modular design, it supports compatibility with various ABB AC500 I/O modules, facilitating users to expand and configure according to their needs. Rich communication interfaces: Equipped with two Ethernet ports, two RS-232C ports and a Modulebus optical fiber communication port, it supports multiple communication protocols and can be easily connected to monitoring systems, smart devices and third-party systems. Multiple I/O expansion methods: Up to 12 S800 I/O modules can be connected through the electrical ModuleBus, 7 S800 I/O clusters can be expanded through the optical fiber ModuleBus, and more I/O clusters can be expanded through the Profibus DP bus to achieve the management of thousands of I/O points. High-reliability redundant configuration: Supports redundant configuration of CPU, communication module, power module, etc. When the main module fails, the system can automatically switch to the backup module to ensure continuous operation. Comprehensive EMC certification: With comprehensive EMC certification, it has excellent anti-interference capability, ensuring the stable operation of the equipment. High protection grade: With IP20 level protection, no additional enclosure protection is required, suitable for various industrial environments. Easy to program and maintain with support for multiple programming languages: Supports ladder diagrams, function block diagrams, structured text and other programming languages, making it convenient for users to program according to their habits and needs. Friendly configuration software: It can be configured using Compact Control Builder and ABB 800xA Control Builder, providing an intuitive graphical interface and a rich function library to improve programming efficiency. Convenient maintenance: The module surface is equipped with LED indicator lights for power, operation, error, etc., facilitating real-time monitoring of the equipment status. Supports hot plugging for convenient replacement of faulty modules; Provide detailed diagnostic information and fault records to quickly locate and solve problems. To sum up, the ABB AC800M PM851 processor module has been widely applied in the field of industrial automation due to its powerful processing capacity, flexible scalability, high reliability, as well as ease of programming and maintenance.

When using the ABB AC800M PM851 processor module, the following points should be noted: Hardware installation and maintenance environment requirements: Ensure that the PM851 is installed in a suitable environment, avoiding excessively high or low temperatures, humidity, dust and corrosive gases, to guarantee its normal operation and extend its service life. Wiring inspection: Regularly check if the terminal blocks are loose or fallen off, and tighten them in time to prevent system failure caused by poor contact. Battery maintenance: The memory of PM851 is backed up by an internal battery. Attention should be paid to the battery's lifespan and status, and it should be replaced in a timely manner to ensure that data is not lost. Programming and configuring software version: Program and configure using the ControlBuilder M version compatible with PM851. Pay attention to the update and upgrade of the software version to obtain better performance and stability. Program capacity: The program capacity of PM851 is limited. When writing programs, attention should be paid to optimizing the code to avoid exceeding its capacity limit. Fault diagnosis and Handling: When a system failure occurs, the LED indicator light and diagnostic tools of PM851 should be used for fault diagnosis to quickly locate the problem. Data backup and recovery: Before conducting system maintenance or handling faults, important data should be backed up to prevent data loss. When restoring data, the integrity and correctness of the backup data should be confirmed. The above precautions cover aspects such as hardware installation and maintenance, programming and configuration, as well as troubleshooting and handling. Adhering to these precautions can ensure the stable operation of the PM851 processor module and the reliability of the system

ABB produces the AC800M PM851 to meet the demand for high-performance and modular controllers in the field of industrial automation. The specific reasons include: Diverse market demands for control: Industrial automation projects have different requirements for the performance, functionality and reliability of controllers. The AC800M PM851 offers a variety of CPU modules with different processing capabilities, memory sizes and redundancy support to meet various control requirements. Openness and compatibility: The market demands controllers that can be seamlessly integrated with a variety of systems and devices. PM851 supports multiple communication protocols, such as Ethernet and PROFIBUS DP, facilitating the connection of devices from different manufacturers to achieve data exchange and system integration. Technical advantage: Modular design: PM851 adopts a modular design, allowing users to flexibly expand it based on actual needs, reducing initial investment costs and facilitating system upgrades and maintenance. High reliability: With an IP20 protection rating and comprehensive EMC certification, it can adapt to harsh industrial environments and ensure stable operation. Powerful processing capability: Equipped with a high-performance microprocessor and large-capacity RAM, it supports multitasking and real-time control, meeting the requirements of complex control algorithms and data processing. Competitive strategy enriches the product line: By launching PM851, ABB has refined the AC800M series, offering more options and enhancing market competitiveness. Differentiation advantage: PM851 features high integrity control, redundant configuration and other characteristics, meeting the requirements of safety-critical applications and forming a differentiated competitive advantage. User value enhances production efficiency: PM851 enables precise control and real-time monitoring, optimizes production processes, and boosts production efficiency. Reduce maintenance costs: The modular design and hot-swappable function facilitate maintenance and replacement, reducing downtime and lowering maintenance costs. Flexible scalability: Supports multiple communication protocols and expansion modules, facilitating system expansion and upgrade, and protecting user investment. To sum up, ABB's production of AC800M PM851 is to meet market demands, leverage technological advantages, enhance competitiveness, and create value for users.