ABB PM864AK01‑eA 3BSE018161R2 High Performance CPU Unit

Technical Specifications

Model: PM864AK01‑eA

Part Number: 3BSE018161R2

Brand: ABB

Product Type: AC800M main processor unit

CPU Frequency: 48 MHz

Program Memory: 16 MB Flash

Data Memory: 32 MB RAM

Redundancy: Support hot standby CPU redundancy

System Bus: Controller internal backplane bus

Communication Port: On‑board Ethernet, RS‑232 serial service port

Power Supply: Rack backplane power supply

Operating Temperature: 0℃ ~ +60℃

Protection Class: IP20

Mounting: Rack slot installation

Compatible System: ABB AC800M DCS System

Core Function: Execute control logic, process field signals, support hot‑standby redundant control operation

Product Details

The PM864AK01‑eA 3BSE018161R2 is a high‑performance AC800M Main CPU for ABB AC800M DCS platform, it is a Redundancy‑supported Processor Unit for critical industrial control applications. This processor can run independently or work in hot‑standby redundant pairs to improve system reliability for continuous‑process plants.

It is equipped with 16 MB flash program memory and 32 MB data RAM, providing sufficient resources for complex control algorithms, sequence logic and large‑scale I/O processing. The integrated Ethernet interface realizes high‑speed communication with operator stations and field devices, while RS‑232 service port is used for local debugging, program download and maintenance work. It exchanges data with S800 I/O stations and various communication interface modules through rack backplane bus.

Front‑panel LED indicators reflect CPU running status, redundancy synchronization state and hardware fault information. Built‑in comprehensive self‑diagnosis function monitors memory, power supply and bus communication. Fault events will be uploaded to HMI through system bus, helping maintenance personnel to discover abnormal conditions in time.

Standard rack‑slot mechanical structure, it can be directly installed inside AC800M controller cabinet. Widely applied in thermal power, petrochemical, pulp‑paper and metallurgy industries. It is key main control hardware for unit overhaul, redundant control system construction and defective main‑processor replacement for legacy ABB AC800M automation projects.