Products Description
ABB 3BSE018161R1 PM864AK01 AC800M Processor Unit
ABB 3BSE018161R1 (PM864AK01) is a high-performance processor unit for ABB AC800M and 800xA DCS platform. It executes real-time control logic, handles multi-protocol communication and performs data interaction with S800 I/O modules and operator stations for industrial process control.

This controller supports full 1:1 hot redundant configuration, with dual Ethernet ports and dual serial communication interfaces. It adopts IEC 61131-3 programming standard and built-in hardware self-diagnosis. It is widely used as spare parts for power, chemical and pulp & paper DCS cabinet maintenance.
Main Specifications
- Brand: ABB; Model: 3BSE018161R1 (PM864AK01); Type: AC800M Processor Unit
- Compatible System: ABB AC800M, 800xA DCS, S800 series I/O modules
- Core Functions: Real-time control algorithm operation, redundant hot standby, multi-channel communication, hardware self-diagnosis
- Programming Standard: IEC 61131-3; Power Supply: 24VDC; Memory: 8MB RAM, 4MB Flash
- Interfaces: Dual RJ45 Ethernet, 2 x RS232 serial ports; Protocols: TCP/IP, PROFIBUS DP, Modbus
- Operating Temperature: -20℃ ~ +70℃; Rack mounting, LED status indicators
- Supply Status: Original ABB spare controller for 800xA DCS system overhaul and replacement
Core Functions
- Run PID regulation, sequence control and safety interlock logic following IEC 61131-3 programming standard.
- Support dual PM864AK01 redundant hot standby, seamless automatic switchover when primary controller fails.
- Communicate with S800 I/O modules via fieldbus and exchange real-time data and alarms with 800xA operator stations.
- Dual Ethernet and serial ports support multiple industrial protocols to connect with third-party field instruments and devices.
- Built-in comprehensive hardware self-diagnosis, detect internal circuit faults and push alarm messages to control system.
- Standard rack installation design, convenient disassembly and replacement during on-site DCS cabinet maintenance.
Application Scenarios
- Core control unit for ABB AC800M / 800xA DCS in power plants, chemical, oil & gas and paper industries.
- Fault controller replacement and routine maintenance of existing ABB distributed control systems.
- Industrial automation renovation projects for boiler control, water treatment and metallurgy process lines.
- Emergency replacement for controller failure to restore process regulation and safety interlock functions.
- Spare parts stocking for maintenance teams operating ABB 800xA DCS automation platforms.
- Aftermarket spare supply for DCS cabinet overhaul and industrial process control system upgrade projects.
FAQ
- Q: Can ABB 3BSE018161R1 work with PM861AK01 for redundant pair?
A: Redundancy needs two identical PM864AK01 controllers, cannot mix with PM861AK01 model. - Q: What are typical controller failure symptoms?
A: Controller fault LED lit, Ethernet communication broken, control logic stop, redundant switchover triggered. - Q: How to complete commissioning and diagnosis?
A: Mount controller on rack, connect power and network cables, download control application and test redundant switchover.

Tags: ABB 3BSE018161R1 PM864AK01 AC800M Processor Unit
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