Description
Brand: ABB
Product Series: System 800xA / AC 800M Controller Family (CEX-Bus Series)
Model: CI855K01 (Part Number / Ordering Code: 3BSE018106R1 / Kit includes CI855 Module & TP853 Baseplate)
Product Type: MasterBus 300 (MB300) Communication Interface Module Kit

ABB CI855K01 3BSE018106R1 MB300 Interface Module
Technical Parameters:
System Compatibility: Dedicated CEX-Bus expansion communication module designed for AC 800M controllers running ABB System 800xA and Compact Control Builder environments.
Communication Protocol: MasterBus 300 (MB300) system fieldbus protocol, delivering high-speed peer-to-peer data synchronization across legacy and modern ABB platforms.
Physical Interface: High-speed coaxial cable communication interface (CS300 / MB300 bus topology) utilizing dedicated connection points on the baseplate assembly.
Data Transmission Rates: High-speed, deterministic 10 Mbit/s transmission rate over coaxial medium, engineered for time-critical process control loops and event-driven data transfer.
Network Capacity & Nodes: Supports peer-to-peer dataset communication with Advant Controller 400 (AC 400) series, Advant Controller 160 (AC 160), and MasterPiece controllers on the same MB300 bus segment.
System Capacity: Supports up to 2 CI855 modules per AC 800M controller rack.
Redundancy & Hot-Swap: Built-in support for dual coaxial network media redundancy and online module hot-swappability without stopping the host AC 800M CPU.
Operating Power Supply: Sourced directly via the AC 800M CEX-Bus at 24 V DC (typical current consumption: 160 mA; max power dissipation approximately 3.8 W).
Conformal Coating & Rating: IP20 protection class with ISA 71.04 G3 compliant harsh environment conformal coating for corrosion protection in severe industrial environments.
Operating Thermal Range: Standard operating thermal envelope from +5°C to +55°C (storage range from -40°C to +70°C).
Physical Dimensions & Weight: Compact vertical form factor measuring 59 mm (W) x 186 mm (H) x 127.5 mm (D) with a net weight of approximately 0.7 kg (including baseplate).
Industrial Sectors:
Chemical and Petrochemical Processing, Oil and Gas Refining, Electric Power Generation and Utilities, Pulp and Paper Manufacturing, Metals and Heavy Mining, and Large-Scale Distributed Process Control Facilities.
Application Scenarios:
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Legacy System Interfacing & DCS Integration: Mounts on the AC 800M CEX-Bus to connect modern System 800xA controllers into existing MasterBus 300 (MB300) networks, allowing seamless peer-to-peer data exchange with classic Advant OCS (AC 410, AC 450) systems.
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Step-by-Step Plant Expansion & Modernization: Applied during phased plant upgrades to add high-performance AC 800M processors alongside legacy Advant controllers without replacing existing field cabling or rewiring entire network backbones.
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High-Speed Inter-Controller Data Synchronization: Serves as a high-throughput deterministic data link for transferring time-critical dataset control variables, interlocking signals, and system alarms across distributed process control nodes.
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Centralized SCADA and Telemetry Integration: Positioned in master control panels to gather real-time process parameters and diagnostic signals from multiple MB300-connected subsystems and transmit them to high-level System 800xA operator workplaces.

