Description
ABB PM858AK02 Redundant Processor Unit (PM858K02 / 3BSE082896R1)
ABB PM858AK02 is dual hot‑standby redundant CPU controller belonging to
ABB AC 800M platform for System 800xA distributed control system. This ABB PM858AK02 processor supports seamless CPU redundancy switchover, guarantees uninterrupted operation for critical process plant. It adopts slide‑lock DIN‑rail mounting, equipped with dual Ethernet control network ports and multiple RS‑232C serial communication ports, compatible with
S800 I/O modules. Programmed by Compact Control Builder, follows IEC 61131‑3 standard. Widely used in power plant, petrochemical, oil‑gas and water treatment for DCS system replacement maintenance. Original factory phased‑out, only surplus stock spare‑parts supply.
Technical Parameters
Model:PM858AK02 (PM858K02)
Order code:3BSE082896R1
Brand:ABB
Platform:AC800M / System 800xA DCS
Processor:MPC866 33MHz
Memory:16MB RAM,4MB Flash PROM
Redundancy:Hot‑standby dual‑CPU redundancy, fast switch‑over
Communication:2×RJ45 Ethernet, 2×RS‑232C serial port
Programming Standard:IEC 61131‑3, Compact Control Builder
Mounting:DIN‑rail slide & lock installation
Power supply:24VDC
Operating Temperature:‑40℃ ~ +70℃
Protection Grade:IP20
Weight:1.2kg
Status:Original factory phased‑out, stock spare‑part supply only

Application Scenarios
Power generation plant, petrochemical industry, oil & gas field, water treatment, heavy‑industry process control, System800xA
DCS system upgrade & spare‑part replacement.

HS‑Code Reference
8537209000 Industrial
DCS control
CPU module
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