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PM866AK02 3BSE081637R1 ABB Redundant Processor Unit 

Overview of ABB PM866AK02 Redundant Processor Unit
The ABB PM866AK02, model number 3BSE081637R1, is a high-performance, redundant processor unit designed for industrial applications that demand reliability and system redundancy. Featuring robust hardware, multiple communication options, and user-friendly installation, this unit is built to support ABB’s 800xA Distributed Control System (DCS), ensuring enhanced operational efficiency and uptime. Let’s dive into the key features and benefits of the PM866AK02 processor unit.

Advanced Hardware Design and Functionality
The CPU board of the PM866AK02 includes a powerful microprocessor paired with a sizable RAM memory for seamless data processing. It also houses a real-time clock, various LED indicators for operational monitoring, an INIT push button, and a CompactFlash interface for data storage and retrieval. These components work in synergy to maintain optimal system performance and help prevent system disruptions.

The base plate is equipped with two RJ45 Ethernet ports (labeled CN1 and CN2) for Control Network connectivity, and two RJ45 serial ports (COM3 and COM4) for additional serial communication. COM3 is an RS-232C port designed for modem control, while COM4 is an isolated port for configuration tool connectivity. With the ability to support CPU redundancy, the PM866AK02 offers enhanced availability across multiple functions such as the CEX-Bus, communication interfaces, and S800 I/O.

Simplified Installation and Hardware Identity
One of the standout features of the PM866AK02 is its simple installation process. Designed with a slide-and-lock mechanism, this unit can be easily attached and detached from DIN rails, making it ideal for rapid deployment in industrial environments. Each base plate comes with a unique Ethernet address, giving every CPU a hardware identity that’s essential for precise network configuration. This unique identifier is visible on the Ethernet address label attached to the TP830 base plate, providing a streamlined setup for operators.

Package Components and Redundancy Features
The PM866AK02 comes with a comprehensive package that includes:
2 PM866A CPUs for redundancy
2 TP830 Baseplates with a width of 115mm each
2 TB807 ModuleBus terminators for secure bus connection
1 TK850 CEX-bus expansion cable to expand system capacity
1 TK851 RCU-Link cable for additional redundancy
2 memory backup batteries (model 4943013-6), one for each CPU
This modular setup not only improves system reliability but also provides operators with the flexibility to expand and customize the unit according to specific application needs.

Key Features and Benefits
The PM866AK02 processor unit stands out for its numerous features, making it a reliable choice for industrial applications. Some of the key highlights include:
ISA Secure Certification: Ensures the unit meets high security standards for industrial applications.
Reliability: Simplifies fault diagnosis procedures, minimizing downtime.
Modular Design: Allows for flexible, step-by-step expansion based on system requirements.
IP20 Class Protection: Offers sufficient protection against dust and accidental contact without the need for additional enclosures.
Configurable with 800xA Control Builder: Compatible with ABB’s 800xA DCS, enabling customized control configurations.
Full EMC Certification: Provides electromagnetic compatibility, essential for reliable industrial operations.
Sectioned CEX-Bus: Utilizes a pair of BC810 or BC820 for secure bus segmentation.
Built-in Redundant Ethernet Ports: Supports dual Ethernet communication, enhancing communication reliability and uptime.

Industrial Applications and Communication Standards
The PM866AK02 supports various industry-standard communication protocols such as Ethernet and PROFIBUS DP, making it versatile and suitable for complex control environments. Its redundant Ethernet communication capability enables uninterrupted data flow, even in case of network disruptions, which is critical for maintaining operations in industries like manufacturing, power generation, and oil and gas.

Conclusion
The ABB PM866AK02 Redundant Processor Unit (3BSE081637R1) is a robust, reliable solution designed for high-availability industrial applications. With its advanced CPU and RAM, flexible configuration options, and redundant communication capabilities, this unit is well-equipped to handle the demands of today’s complex control environments. By incorporating ISA security certification, modular design, and easy installation features, ABB ensures that the PM866AK02 meets both current and future industrial needs.

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