Overview

The ABB PM861K01 is a central processing unit (CPU) module for the AC 800M controller platform within ABB’s System 800xA DCS.

It functions as the computational core, executing control logic, coordinating I/O modules, and managing communication with higher-level systems.

This module is widely used in process industries, power generation, and utilities, where high reliability and deterministic real-time performance are essential.

Technical Specifications

Key Features

• High reliability: MTBF over 200,000 hours for continuous operation.

• Real-time processing: Cycle time ≤ 1 ms for deterministic control.

• Hot-swap capability: Modules can be replaced without shutting down the system.

• Energy efficient: Low power consumption (≤ 25 W typical).

• Advanced processing: Supports complex algorithms (PID, motion planning).

• Modular design: Easy expansion with I/O modules.

Typical Applications

• Process industries: Chemical, oil & gas, and pharmaceutical plants.

• Power generation & utilities: Turbine, boiler, and substation control.

• Manufacturing automation: Production line monitoring and control.

• Infrastructure systems: Water treatment and transportation automation.

FAQ

Q1: What is the primary function of the ABB PM861K01?
A1: It acts as the CPU/base module for AC 800M controllers, executing control logic and managing communication.

Q2: How reliable is it?
A2: It has an MTBF of over 200,000 hours, ensuring long service life.

Q3: Can it be replaced without downtime?
A3: Yes, it supports hot-swap functionality.

Q4: What kind of processing speed does it offer?
A4: It delivers ≤ 1 ms cycle time for real-time tasks.

Q5: Where is it typically used?
A5: In System 800xA DCS applications across process industries, utilities, and manufacturing.