ABB PM861AK01 3BSE018157R1 CPU Controller Unit

The ABB PM861AK01 (3BSE018157R1) is a core processor module designed for the AC 800M distributed control system platform. As an integral part of ABB’s 800xA control architecture, the PM861AK01 provides high-performance processing power, robust communication interfaces, and support for redundant configurations, ensuring reliable operation in critical industrial environments.

This controller unit features a PowerPC-based CPU, multiple Ethernet ports, serial communication channels, and integrated memory. It is widely used in process automation, power generation, oil and gas, and various other demanding industries where real-time control, system availability, and long-term reliability are essential.

Key Features

• Powerful 48 MHz PowerPC processor architecture.

• Supports redundant CPU configurations with automatic switchover (<10 ms).

• Integrated dual Ethernet ports for network redundancy and communication.

• CompactFlash interface for firmware and application storage.

• Galvanic isolation of communication ports for signal integrity.

• Hot-swappable design for easy maintenance and system upgrades.

• Compatibility with ABB S800 I/O and AC 800M modules.

• Robust metal housing with DIN-rail mounting for industrial environments.

• Compliance with global industry standards (CE, UL).

• Designed for long-term operation in mission-critical systems.

Technical Specifications

Industry Applications

• Oil & Gas: Real-time control and monitoring in offshore platforms, refineries, and pipelines.

• Power Generation: Automation and safety in thermal, nuclear, and renewable energy plants.

• Chemical Processing: Reliable control of complex chemical and petrochemical processes.

• Pulp & Paper: Optimized production management and quality control.

• Water & Wastewater Treatment: Distributed control and automation for plant operations.

• Pharmaceutical Manufacturing: Precision control for batch processing and regulatory compliance.

Product Advantages

• Redundancy Ready: Supports dual-CPU redundancy for uninterrupted system operation.

• Fast Switchover: <10 ms automatic failover enhances system availability.

• Robust Communication: Dual Ethernet ports and isolated serial interfaces.

• Flexible Storage: CompactFlash slot for application and firmware data.

• Industrial Durability: Withstands harsh environments with wide temperature range and EMC protection.

• Easy Integration: Fully compatible with ABB’s 800xA and S800 I/O platforms.

• Maintenance-Friendly: Hot-swappable design minimizes downtime during servicing.

• Scalable System Architecture: Supports system expansion with additional modules and I/O.

• Global Compliance: Certified for international use with CE, UL standards.

• Legacy System Support: Essential for maintaining and upgrading existing ABB control infrastructures.

Frequently Asked Questions (FAQ)

1. What is the processor specification for the PM861AK01?

   It uses a 48 MHz PowerPC processor with 16 MB of RAM.

2. Is the PM861AK01 compatible with redundant configurations?

   Yes, it supports CPU redundancy with bumpless switchover under 10 milliseconds.

3. What communication ports are available on the unit?

   It includes 2 Ethernet RJ45 ports and 2 serial ports (COM3 RS-232C, COM4 isolated).

4. Can the PM861AK01 be hot-swapped?

   Yes, the module is hot-swappable for simplified maintenance.

5. What type of memory storage is supported?

   It supports CompactFlash cards for firmware and application storage.

6. Is this controller suitable for new installations?

   No, it is a legacy product primarily intended for maintaining existing ABB AC 800M systems.

7. What are the environmental specifications?

   Operating temperature: -20°C to +60°C; storage: -40°C to +85°C; humidity: 5% to 95% non-condensing.

8. What power supply voltage does the PM861AK01 require?

   It operates on 24 VDC (19.2–30 VDC range).

9. Is the PM861AK01 RoHS compliant?

   No, it is a legacy product and does not comply with RoHS directives.

10. What system platforms is this controller compatible with?

    It integrates with ABB AC 800M control systems, 800xA environments, and S800 I/O.