Description
ABB AC 800M Redundant Processor Unit: PM864AK01 (3BSE018161R1)
Product Overview
PM864AK01 (3BSE018161R1) is a redundant processor unit belonging to ABB’s AC 800M controller series, a core component of the ABB Ability™ 800xA distributed control system (DCS). As a redundant core computing component, PM864AK01 (3BSE018161R1) is designed to handle medium – scale industrial automation control tasks that require high availability, providing stable and reliable real – time data processing and control capabilities with seamless fail – over functionality. Equipped with a 96 MHz MPC862 RISC processor and 32 MB RAM, PM864AK01 (3BSE018161R1) can smoothly execute multiple control loops and process large – volume data streams, which is crucial for industrial scenarios that demand continuous and reliable control.
This product is supplied as a complete kit, including the PM864A CPU, TP830 baseplate, various terminators, a 3.6 V lithium backup battery, and a 4 – pos power plug, making it convenient for users to install and deploy directly. It is seamlessly compatible with S800 I/O modules and supports multiple communication protocols, enabling PM864AK01 (3BSE018161R1) to integrate well into existing automation systems, providing a cost – effective and highly available solution for industrial process control.

PM864AK01 3BSE01816R1 PDF
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | PM864AK01 (3BSE018161R1) |
| Manufacturer | ABB |
| Product Type | AC 800M Redundant Processor Unit |
| Core CPU | 96 MHz MPC862 RISC Processor |
| Memory Configuration | 32 MB RAM, 2 MB Flash PROM, 3.6 V Lithium Backup Battery |
| Communication Interfaces | 2×RJ45 Ethernet (Control Network), 2×RJ45 Serial (COM3: RS – 232C with Modem Control; COM4: Isolated for Configuration), CEX – Bus, ModuleBus, RCU – Link |
| I/O Capacity | Max 96 S800 I/O Modules (Single Unit) |
| Power Requirement | 24 V DC (19.2 – 30 V DC), Typ./Max Current: 287/487 mA |
| Power Dissipation | Typ 6.9 W, Max 11.4 W |
| Redundancy Support | Yes (CPU, CEX – Bus, Communication Interface Redundancy) |
| Processing Performance | 0.15 ms for 1000 Boolean Operations |
| Protection Class | IP20 |
| Package Contents | PM864A CPU, TP830 Baseplate, TB850 CEX – Bus Terminator, TB807 ModuleBus Terminator, TB852 RCU – Link Terminator, 3.6 V Backup Battery (4943013 – 6), 4 – pos Power Plug (3BSC840088R4) |
Main Features and Advantages
High – availability redundant design: PM864AK01 (3BSE018161R1) adopts a redundant architecture, supporting CPU, CEX – Bus, and communication interface redundancy, which is suitable for industrial applications that require uninterrupted operation, effectively ensuring system availability while maintaining control performance. Its complete kit supply eliminates the trouble of users purchasing accessories separately, simplifying the procurement and deployment process.
Stable and reliable performance: The 96 MHz CPU and 32 MB memory of PM864AK01 (3BSE018161R1) can meet the real – time processing needs of medium – scale control tasks, with a 0.15 ms task execution time for 1000 Boolean operations, ensuring the rapid response of the control system. The built – in 3.6 V lithium battery can back up data when the power is off, preventing data loss and enhancing the system’s reliability. The redundant design enables seamless fail – over, ensuring continuous operation even if one CPU fails.
Strong compatibility and scalability: PM864AK01 (3BSE018161R1) is perfectly compatible with ABB’s S800 I/O modules, and can connect up to 96 I/O modules, which can meet the expansion needs of different scales of industrial sites. It supports multiple communication protocols, enabling seamless integration with other devices in the automation system, and facilitating system upgrading and expansion.
Easy installation and maintenance: The modular design of PM864AK01 (3BSE018161R1) allows for quick installation and replacement. The clear interface identification and simple wiring method reduce the difficulty of on – site installation and debugging. In addition, the product has passed EMC certification, which can operate stably in harsh industrial electromagnetic environments, reducing the frequency of failures and maintenance workload.
Application Fields
PM864AK01 (3BSE018161R1) is widely used in various industrial fields that require medium – scale process control with high availability requirements. In the chemical industry, it can be used to control the reaction process, material mixing, and storage and transportation systems, ensuring the continuous and stable operation of chemical production, and improving production efficiency and product quality. In the power generation industry, PM864AK01 (3BSE018161R1) can be applied to the control of thermal power plants’ boiler water supply, combustion systems, and steam turbines, realizing the precise regulation of power generation processes and ensuring the stable operation of power generation equipment.
In the oil and gas industry, this product can be used for the control of oil and gas extraction, transportation, and refining processes, monitoring parameters such as pressure, temperature, and flow in real time to ensure the safety and efficiency of the production process. In the water treatment industry, PM864AK01 (3BSE018161R1) can control the water purification, sewage treatment, and water supply and drainage systems, realizing the automatic operation of the water treatment process and improving the water treatment effect and efficiency. Moreover, it is also suitable for food and beverage, pharmaceutical, and other industries that have strict requirements for production processes, providing reliable control support for the standardized and continuous production of these industries.
Related Products

- PM864AK02 (3BSE081636R1): Enhanced redundant version of PM864AK01 (3BSE018161R1), with improved redundancy synchronization speed and enhanced communication capabilities for large – scale applications.
- PM866AK01 (3BSE076939R1): Single – channel counterpart of PM864AK01 (3BSE018161R1), with 133 MHz CPU and 64 MB memory, suitable for applications without redundancy requirements, a cost – effective alternative.
- PM867K01 (3BSE076355R1): High – integrity single – channel processor unit, with similar performance to PM864AK01 (3BSE018161R1), but with enhanced safety features for safety – critical applications.
- PM891K01 (3BSE053241R1): High – performance single – channel processor unit with 450 MHz CPU and 256 MB memory, suitable for large – scale and complex control tasks, an upgraded alternative for PM864AK01 (3BSE018161R1) in high – end non – redundant applications.
- TB807: ModuleBus terminator, a necessary accessory for PM864AK01 (3BSE018161R1) to ensure stable ModuleBus communication.
- TP830: Baseplate specially designed for PM864AK01 (3BSE018161R1), providing mechanical support and electrical connections for the processor unit.
- BC810/BC820: CEX – Bus sectioning modules, used with PM864AK01 (3BSE018161R1) to realize sectioned CEX – Bus and improve system reliability.
- S800 I/O Modules (e.g., AI810, DI810): I/O modules matched with PM864AK01 (3BSE018161R1) for collecting and outputting field data.
Installation and Maintenance
Installation preparation: Before installing PM864AK01 (3BSE018161R1), check whether the package is complete, including the PM864A CPU, TP830 baseplate, terminators, backup battery, and power plug. Ensure that the installation environment meets the IP20 protection requirement and has a stable 24 V DC power supply. Power off the system and confirm that there is no residual voltage to avoid electric shock. For redundant configuration, prepare two identical PM864AK01 (3BSE018161R1) units and ensure they are properly connected for synchronization.
Installation steps: Fix the TP830 baseplate on the standard DIN rail, insert PM864AK01 (3BSE018161R1) into the baseplate, and ensure a firm connection. Connect the CEX – Bus, ModuleBus, and RCU – Link terminators (TB850, TB807, TB852) to the corresponding interfaces. Connect the Ethernet and serial cables to the respective ports, and connect the 24 V DC power supply. For redundant setup, connect the two PM864AK01 (3BSE018161R1) units via the synchronization interface. After installation, power on the devices and check the LED indicators to confirm that PM864AK01 (3BSE018161R1) operates normally and the redundancy synchronization is successful.
Maintenance suggestions: Regularly check the voltage of the 3.6 V backup battery of PM864AK01 (3BSE018161R1) and replace it in time if the voltage is too low to prevent data loss during power – off. Clean the surface of the device regularly to avoid dust accumulation affecting heat dissipation. Monitor the operation status and redundancy synchronization of the processor unit through the 800xA control builder, and handle faults in a timely manner according to the alarm information. Avoid frequent power – on and power – off operations to extend the service life of PM864AK01 (3BSE018161R1). When replacing the device, ensure that the new PM864AK01 (3BSE018161R1) is compatible with the system version to ensure the normal operation of the system and redundancy function.
Product Guarantee
Hong Kong Saul Electric Co., Ltd., an industry – leading industrial control parts import and export trade distributor founded in 2007, provides a 1 – year quality guarantee for PM864AK01 (3BSE018161R1). We have a large – scale spot inventory of PM864AK01 (3BSE018161R1), including many rare and discontinued models, which can meet your urgent procurement needs. Our company has advantageous supply channels, ensuring the authenticity and quality of the products.
In terms of after – sales service, we provide professional technical support to help you solve installation, debugging, and operation problems of PM864AK01 (3BSE018161R1), especially for redundant configuration and synchronization issues. If you have any questions about the product or cannot find the required model, please contact us via WhatsApp: https://wa.me/+8618030274856 or email: saulplcmodule@gmail.com. Hong Kong Saul Electric Co., Ltd. is your reliable partner for all industrial control product needs.
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