The ABB BC810 series is a versatile family of industrial modules designed to enable seamless communication, control, and integration in automation systems. Comprising multiple variants such as BC810K01 and BC810K02, these units serve as critical components in ABB’s distributed control systems (DCS) and modular automation architectures, particularly within the AC 800M and S800 I/O ecosystems . Below is a detailed breakdown of their technical specifications, applications, and lifecycle considerations.

Parameter	BC810K01	BC810K02
Type	CEX-Bus Interconnection Unit	CEX-Bus Interconnection Unit
Function	Bridges CEX-Bus segments for enhanced communication reliability	Supports redundant CEX-Bus configurations and online CPU replacement
Bus Support	CEX-Bus (for connecting I/O modules, drives, and controllers)	CEX-Bus with redundancy protocols (e.g., MRP/PRP)
Power Supply	24V DC ±20%	24V DC ±20%
Environmental Ratings	-25°C to +70°C (operational)	-40°C to +70°C (operational)
Physical Dimensions	59 x 185 x 127.5 mm	120 x 94 x 72 mm
Certifications	CE, UL, CSA	CE, UL, CSA
Redundancy Support	N/A	Hot-swappable in redundant CPU systems

BC810K01: Supports up to 128 concurrent connections, ideal for small to medium-scale systems .

BC810K02: Enables ring topology configurations for redundant networks, critical for mission-critical applications like power plants and chemical processing .
Diagnostic Capabilities
Built-in LED indicators provide real-time status monitoring for power, communication, and module health. Remote diagnostics via ABB’s 800xA software allow proactive maintenance and rapid troubleshooting .

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