Description
🔹 Product Introduction
The ABB PM864AK01 is a processor unit for the ABB AC 800M controller platform, used as a central processing component in industrial automation and process control systems. It is associated with the System 800xA control architecture and is designed to execute control applications while communicating with I/O and communication modules through the AC 800M architecture.
The complete PM864AK01 processor-unit package is identified by product ID 3BSE018161R1 and includes the PM864A CPU, TP830 baseplate, CEX-bus terminator, ModuleBus terminator, RCU-Link terminator, memory-backup battery, and associated power connector.
The PM864A processor uses an MPC862 processor architecture and supports 24 V DC power input. The published technical data specifies typical power consumption of approximately 6.9 W, with a maximum power dissipation of 11.4 W. It provides Ethernet interfaces, RS-232C service/communication interfaces, CEX-bus connectivity, and ModuleBus support for AC 800M system expansion.

📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | ABB |
| Model | PM864AK01 |
| Series | AC 800M / System 800xA |
| Product Name | Processor Unit |
| Product ID | 3BSE018161R1 |
| Place of Origin | Sweden / Germany, depending on production version |
| Condition / Status | New – Open box |
| Dimensions | Approx. 186 × 119 × 135 mm |
| Weight | Approx. 1.2 kg |
| Power | 24 V DC; typical consumption approx. 6.9 W |
⚙️ Main Features
🔹 AC 800M Processor Unit — Provides the central processing function for an AC 800M controller.
🔹 Modular System Architecture — Designed for integration with ABB AC 800M baseplates, CEX-bus, ModuleBus and RCU-Link components.
🔹 Memory Backup — The standard package includes a backup battery for retaining controller memory during power interruption.
🔹 Communication Interfaces — Supports Ethernet communication and RS-232C interfaces for control-network and service functions.
🔹 I/O Expansion — The PM864A architecture supports S800 I/O expansion through ModuleBus, with the published specification allowing up to 96 I/O modules in a non-redundant configuration.
🔹 Industrial Applications — Suitable for process control, plant automation, machinery control, power-related automation and other AC 800M-based control applications.
🏭 Typical Applications
The PM864AK01 can be used in:
• Process automation systems
• Distributed control systems
• Chemical and petrochemical plants
• Power and utility automation
• Water and wastewater systems
• Manufacturing automation
• Existing ABB AC 800M control-system maintenance and spare-part replacement
❓ Common Questions & Answers
Q: What is the ABB PM864AK01?
A: It is an AC 800M processor unit used as the central controller processing module in ABB industrial automation systems.
Q: What is the difference between PM864AK01 and PM864AK02?
A: PM864AK01 is a single processor-unit package. PM864AK02 is the redundant processor configuration and consists of two PM864AK01 processor units together with the required redundancy connection components.
Q: What is the product ID of PM864AK01?
A: The standard ABB product ID is 3BSE018161R1.
Q: Does PM864AK01 include the baseplate?
A: The standard processor-unit package includes a TP830 baseplate, together with the required bus terminators and memory-backup battery.
Q: What power supply does PM864AK01 require?
A: The technical specification indicates a 24 V DC supply, with an operating range of approximately 19.2–30 V DC.
Q: Can PM864AK01 be used with AC 800M systems?
A: Yes. PM864AK01 belongs to the AC 800M processor-unit family used within the System 800xA control architecture.
Q: Is PM864AK01 suitable as a replacement spare?
A: It can be used as a replacement processor unit when the existing system configuration, hardware revision and application requirements are compatible. Always verify the complete part number and system configuration before installation.
🔧 Installation & Maintenance Notes
Before installation, verify the processor model, product ID, hardware revision and controller configuration.
Check the 24 V DC power supply and ensure that the system is isolated according to the plant’s maintenance procedures before replacing the processor unit.
Inspect the backup battery and connectors during maintenance. Keep CEX-bus, ModuleBus and RCU-Link connections clean and correctly terminated.
After installation, verify controller startup, communication status, I/O communication and application execution before returning the system to normal operation.
⭐ Recommended ABB Models
- ABB PM851AK01
- ABB PM856AK01
- ABB PM860AK01
- ABB PM861AK01
- ABB PM861AK02
- ABB PM862K01
- ABB PM863K01
- ABB PM864AK02
- ABB PM866AK01
- ABB PM867K01
