Original ABB PM864AK01 processor unit for AC800M controller, high‑performance CPU with baseplate and terminators for 800xA process control spare part.

Product Overview

PM864AK01 (3BSE018161R1) is complete processor unit of ABB AC800M DCS system, includes PM864A CPU, TP830 baseplate, CEX‑bus and ModuleBus terminators, backup battery and power connector. It executes IEC61131‑3 control logic, closed‑loop regulation, sequence and interlock calculation, communicates with S800 I/O modules via ModuleBus, supports Ethernet, Profibus‑DP and Modbus‑TCP for data exchange with upper‑level SCADA and third‑party devices. It features real‑time clock and battery‑backed RAM for program and parameter retention. Industrial‑grade hardware resists cabinet vibration and electromagnetic interference. Widely used as maintenance spare part for power‑plant, petrochemical, metallurgical and water‑treatment process control cabinets.

Key Features

• Complete processor assembly, contains CPU, baseplate, bus terminators and backup battery for plug‑and‑play installation
• High‑performance 32‑bit processor, supports IEC61131‑3 programming standards, handles complex process control logic
• Built‑in 32MB RAM, battery‑backed memory to retain application program and configuration parameters
• Multiple communication interfaces: Ethernet, Profibus‑DP, Modbus‑TCP, realize data interaction with I/O subsystems and upper‑level monitoring system
• Front‑panel LED indicators for power, run status, fault and communication diagnosis
• Supports CEX‑bus extension, connect multiple functional modules, expand system control capacity

• Standard AC800M rack mounting structure, industrial conformal‑coated PCB for long‑term continuous operation

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Technical Specifications

• Brand: ABB
• Model: PM864AK01, 3BSE018161R1
• Module Type: Processor Unit (Complete Assembly)
• System Platform: AC800M DCS / 800xA System
• Programming Standard: IEC61131‑3
• Memory: 32MB RAM, battery‑backed
• Communication: Ethernet, Profibus‑DP, Modbus‑TCP
• Power Supply: Backplane powered 24VDC
• Weight: Approx 1.2kg
• Operating Temp: 0℃ ~ +55℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Plug‑in inside AC800M control rack

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Compatibility

Compatible with ABB AC800M and 800xA DCS system. After replacement, perform firmware matching, control program download, bus communication test and I/O loop verification required.