Product Overview

ABB 3BSE018161R1 is the product identification number for the
PM864AK01 Processor Unit, a central processing component
within the ABB AC 800M controller platform. The unit is designed to provide
the processing foundation for industrial automation and control applications
where controller architecture, deterministic operation and system integration
are important.

The PM864AK01 is identified by ABB as a processor unit with a
96 MHz CPU and 32 MB memory. In an AC 800M installation,
the processor unit forms the core of the controller structure and works with
associated communication, I/O and controller infrastructure to execute the
control application.

Technical Specifications

PM864AK01 Processor Architecture

The PM864AK01 is built around the PM864A processor and its associated
controller hardware. Rather than functioning as a standalone field device,
it forms part of a modular controller architecture. This structure allows
the processor unit to be integrated with other AC 800M system components
according to the requirements of an automation installation.

The processor unit package specified for ABB 3BSE018161R1 includes a
TP830 baseplate with a width of 115 mm. The package also
includes the TB850 CEX-bus terminator, TB807 ModuleBus terminator and
TB852 RCU-Link terminator. A battery for memory backup and a power plug
are also identified in the ABB product documentation.

Role in ABB AC 800M Control Systems

Within an AC 800M controller configuration, the processor unit is responsible
for executing the controller’s application logic. It provides the computing
resources required for the control program while the modular controller
architecture provides the interfaces and infrastructure needed to connect
the controller with the wider automation system.

This makes the ABB 3BSE018161R1 particularly relevant to control architectures
where the processor must work together with controller buses, I/O modules,
communication interfaces and other AC 800M hardware. Its role should therefore
be considered as the central processing element rather than simply as an
independent PLC communication module.

Included Controller Components

ABB documentation identifies the PM864AK01 processor unit package as a
processor unit kit. The documented configuration includes several supporting
components that allow the processor to form part of an AC 800M controller
installation.

• PM864A CPU: The central processing element of the unit.
• TP830 baseplate: Mechanical and electrical baseplate used with the processor configuration.
• TB850: CEX-bus terminator.
• TB807: ModuleBus terminator.
• TB852: RCU-Link terminator.
• 4943013-6-4: Battery identified for memory backup.
• 3BSC840088R4: Power plug identified in the product package documentation.

System Integration

The modular design of the AC 800M platform allows the PM864AK01 to be
integrated into a broader control system rather than requiring all control
functions to be concentrated in a single hardware assembly. The processor
unit can therefore serve as the computing center of a controller configuration
that includes additional I/O and communication hardware.

When integrating an ABB 3BSE018161R1 unit into an existing system, the exact
controller configuration should be considered carefully. Hardware type,
controller version, bus architecture, firmware requirements and application
configuration can affect compatibility. For replacement planning, the
complete part number and processor type should be verified against the
existing controller documentation.

Application Areas

The PM864AK01 is intended for industrial automation environments based on
the ABB AC 800M controller family. Its processor-oriented design makes it
suitable for controller architectures where centralized execution of control
logic is required.

Typical system-level applications for AC 800M controllers include process
automation, manufacturing control, infrastructure automation, power-related
control systems and other industrial installations requiring a modular
programmable control platform. The PM864AK01 should always be selected
according to the requirements of the complete control system rather than
evaluated only as an individual CPU module.

Product Identification and Compatibility

Correct identification is especially important when working with ABB AC 800M
processor units because different processor generations can have similar
physical appearances while using different product numbers. For this reason,
3BSE018161R1 and PM864AK01 should be used
together when identifying this specific product.

ABB’s current lifecycle information identifies PM864AK01 with product number
3BSE018161R1 as a Classic product and lists PM862K01 with
product number 3BSE076940R1 as a replacement. Replacement selection should
be confirmed against the system architecture and applicable ABB engineering
documentation rather than assuming that processor units are interchangeable
solely because they belong to the same AC 800M family.

Key Features

• ABB AC 800M controller processor unit.
• ABB Product ID 3BSE018161R1.
• Type designation PM864AK01.
• 96 MHz CPU specification.
• 32 MB memory specification.
• Modular processor architecture for AC 800M systems.
• TP830 baseplate included in the documented processor unit kit.
• CEX-bus, ModuleBus and RCU-Link termination components included in the documented configuration.
• Memory backup battery included in the documented package.

Conclusion

ABB 3BSE018161R1 PM864AK01 is a processor unit designed for the ABB AC 800M
automation controller platform. With a 96 MHz CPU and 32 MB memory, it serves
as the central processing component of an AC 800M controller configuration.
Its documented package combines the PM864A CPU with the TP830 baseplate,
controller bus termination components, memory backup battery and power plug,
providing the hardware elements associated with the processor unit
configuration.

For technical identification, system engineering and replacement planning,
the complete ABB product number 3BSE018161R1 and type
designation PM864AK01 should be referenced together. This
provides a clear product identity for applications involving ABB AC 800M
controller systems and associated industrial automation infrastructure.

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