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Ultimate Guide: ABB PM866AK01 AC 800M CPU (Part No. 3BSE076939R1)
What is ABB PM866AK01?
ABB PM866AK01 is the high-performance flagship CPU of the ABB AC 800M family.
A single ABB PM866AK01 module delivers deterministic, SIL-capable control for power, chemical, oil & gas, and metallurgy applications.
ABB PM866AK01 Key Specifications
• CPU: 133 MHz MPC866 RISC processor
• Memory: 64 MB total (≈ 51 MB user, 4 MB firmware, 8 MB OS)
• Ethernet: 2 × 10/100 Base-TX (RJ45) on ABB PM866AK01 for redundancy or load balancing
• Serial: 2 × RJ45 (COM3 RS-232, COM4 isolated) on ABB PM866AK01
• Redundancy: Hot-standby “ABB PM866AK01 Redundant Pair” (< 1 ms switchover)
• Power: 24 V dc (19.2–30 V dc), 6.9 W typ
• Operating: –25 °C … +60 °C, IP20
ABB PM866AK01 Engineering & Connectivity
• Tool: ABB Control Builder M (v6.x+) for ABB PM866AK01
• Protocols: Modbus TCP, OPC UA, IEC 60870-5-104 via ABB PM866AK01
• Expansion: CI modules give ABB PM866AK01 Profibus DP, Profinet IO, Foundation Fieldbus, EtherNet/IP adapters
• I/O Count: up to 96 S800 modules per ABB PM866AK01 rack
ABB PM866AK01 Applications
• Power: turbine/boiler CCS with ABB PM866AK01
• Chemical: reactor loops controlled by ABB PM866AK01
• Oil & Gas: ESD systems driven by ABB PM866AK01
• Metallurgy: mill drives using ABB PM866AK01 set-points
ABB PM866AK01 Ordering & Related Hardware
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Part Number
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Description
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ABB PM866AK01
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3BSE076939R1 CPU module
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TP830
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DIN-rail baseplate for ABB PM866AK01
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TB850
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CEX-Bus terminator for ABB PM866AK01
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TB807
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ModuleBus terminator for ABB PM866AK01
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4943013-6
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Memory-backup battery for ABB PM866AK01
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CI867 / CI871
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Profibus DP / Profinet IO adapter for ABB PM866AK01
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CI840A
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Dual-port Profinet IO switch for ABB PM866AK01
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BC810 / BC820
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Sectioned CEX-Bus units for ABB PM866AK01 racks
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All items are factory-sealed and ready for same-day shipment from PLC Autocontroller.
