Product Introduction

ABB PM866K01 (order code 3BSE050198R1) is a high-performance processor unit for the AC 800M PAC family, optimized for the System 800xA distributed control architecture. It serves as the core control engine for large-scale process and discrete automation, delivering high-speed logic execution, massive data processing, and seamless integration with ABB’s 800xA engineering tools. With industrial-grade design and extended temperature tolerance, it ensures stable long-term operation in harsh environments.

Model Interpretation

PM stands for Processor Module; 866 denotes the high-end AC 800M CPU series. K01 indicates the specific hardware revision and configuration for ordering, inventory, and system design.

Technical Parameters

Processor: Dual-core ARM Cortex-A9, 800 MHz, VxWorks real-time OS

Memory: 2 GB RAM, 4 GB eMMC flash; non-volatile RAM for data retention

I/O Capacity: Up to 2048 digital + 512 analog points; supports up to 96 I/O modules

Power Supply: 24 V DC (19.2–30 V DC), backplane-powered; max 0.4 A

Operating Temperature: -20°C to +60°C; storage -40°C to +85°C

Humidity: 5%–95% RH, non-condensing

Protection: IP20 (industrial enclosure required)

Dimensions: 125 × 145 × 101 mm; weight approx. 0.5 kg

Redundancy: Supports CPU, communication, and power redundancy; 500 ms switchover

Interface and Communication Configuration

Ethernet: 2 × RJ45 (10/100 Mbps), TCP/IP, Modbus TCP, EtherNet/IP

Serial: 2 × RS-232/485 isolated ports (COM3/COM4)

Expansion: CEX-Bus for S800 I/O and communication modules; PROFIBUS DP optional

Indicators: LED for power, run, fault, communication; reset button; SD card slot for backup

Protocols: Profibus DP, Modbus RTU, OPC UA, IEC 61131-3 compliant

Core Functions

Executes high-speed real-time control logic (0.1 ms minimum cycle) for complex process control

Performs centralized data collection, historical logging, and parameter management for large I/O systems

Supports system-wide alarm handling and equipment self-diagnosis for fast fault localization

Enables redundant operation with bumpless switchover to eliminate single-point failures

Facilitates programming via Control Builder M (IEC 61131-3: ST/FBD/LAD/SFC)

Ensures data integrity with non-volatile RAM and SD card backup

Application Scenarios

Process Industry: Power plants, chemical, oil & gas, water treatment, metallurgy

Discrete Manufacturing: Automotive, food & beverage, packaging, plastics

Infrastructure: District heating, building management, smart grid monitoring

Large-Scale Automation: Complex DCS, high-reliability PLC retrofits, integrated control systems

Operation and Maintenance Instructions

Install on standard DIN rail or panel with adequate ventilation; avoid direct heat and vibration

Use shielded cables for all communication wiring; separate power and signal cables to reduce interference

Configure and download programs via Control Builder M before commissioning

Regularly check LED status, connection integrity, and SD card backup health

The module has no user-serviceable parts; replace the entire unit upon permanent hardware failure

Store in dry, clean environment; operating humidity 5%–95% non-condensing