Technical Specifications Back‑plane system bus interface, inter‑rack bus connection interface. Auxiliary power 24 V DC, typical power consumption 3.9 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%.
Functional Features Couples communication bus between main rack and extended I/O racks. Regenerates bus signal to guarantee transmission quality. Provides isolated auxiliary power supply for downstream extended racks. Front‑panel LED indicates bus link and module fault status. Built‑in hardware self‑diagnosis detects bus link failure and internal circuit abnormality.
Application Scenarios Distributed I/O bus spare part for ABB 800xA DCS system. Deployed in large‑size petrochemical, power plant automation control system maintenance.
Performance Parameters High‑quality bus signal regeneration performance. Isolated power output capability for extended racks. Reliable bus fault diagnosis function.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Bus signal regeneration and power isolation assemblies. Back‑plane plug‑in connector and inter‑rack bus port.
Structural Characteristics Standard S800 rack plug‑in module. Front panel equipped with inter‑rack bus port and status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.37 kilogram.
Working Principle Module receives bus signal and auxiliary power from main rack back‑plane. Internal circuit processes and regenerates bus signal, outputs isolated power for downstream racks. Communication data is transmitted between main rack and extended racks. Diagnosis circuit monitors bus link condition continuously.
Installation Requirements Disconnect rack 24 V DC auxiliary power before replacement. Insert BC810K01 into corresponding main rack slot and lock fixing latch. Connect dedicated inter‑rack bus cable. Ensure back‑plane connector is fully engaged. Restore power supply and verify data communication of all extended I/O modules.
Usage Notes Adopt original matching bus cables. Strictly follow manual limitation on maximum extended rack quantity.
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