Product Introduction
The ABB CI855K01, part number 3BSE018106R1, is a MasterBus 300 communication interface kit designed for ABB AC800M and 800xA distributed control systems. The kit includes CI855 communication module and TP853 baseplate. It enables AC800M controllers to communicate with legacy Advant OCS, MasterPiece and older Advant controllers via MasterBus300 protocol, realizing peer-to-peer high-speed data exchange between new and old ABB automation systems. Equipped with dual RJ45 Ethernet ports for network redundancy, it adopts industrial-grade circuit design and strong EMC anti-interference capability. It can run reliably in harsh industrial environments with temperature fluctuation, dust, mechanical vibration and electromagnetic noise. Widely used in power, pulp & paper, petrochemical and metallurgy industries. It is an essential spare part for AC800M rack maintenance, legacy system interconnection and DCS system upgrade.

Content Details

Brand: ABB Model: CI855K01 Part No: 3BSE018106R1 Product Type: MasterBus 300 Communication Interface Kit Applicable System: ABB AC800M / 800xA DCS, Advant OCS Protocol: MasterBus 300 (MB300) Transmission Rate: 10 Mbit/s Package Content: CI855 communication module + TP853 baseplate The ABB CI855K01 3BSE018106R1 kit is installed on TP853 baseplate inside the AC800M control rack. It connects controller CEX bus and MasterBus300 network, serving as a bridge between modern AC800M controllers and older Advant series control equipment. It transmits real-time process datasets, control parameters, alarm and event information across the network, protecting customers' investment on existing legacy automation systems during system expansion or renovation. Dual Ethernet ports support network redundancy to improve communication reliability. This module supports hot-swap function. Maintenance engineers can replace the module without shutting down the whole control rack, effectively reducing production downtime during overhaul. Every unit undergoes comprehensive functional testing and aging screening before shipment to guarantee stable 24/7 continuous operation. Built-in isolation protection suppresses surge and ground loop interference, protecting the main controller from electrical damage. It can be configured and diagnosed via ABB Control Builder software. LED indicators on the front panel show power status, network link and fault codes, helping maintenance staff quickly locate network communication faults. It is specially used for interconnection between new AC800M and old Advant DCS systems. Typical application scenarios include thermal power plant DCS reconstruction, paper mill legacy system upgrade, chemical process control and metallurgical automation renovation. When the original MasterBus300 communication module fails, CI855K01 3BSE018106R1 can be directly replaced to restore data communication between AC800M and Advant OCS systems. This module meets CE, UL and IEC industrial safety standards with IP20 protection rating. Compact modular rack design and durable electronic components support long-term continuous operation. Whether you prepare spare inventory for equipment maintenance or purchase components for legacy DCS interconnection projects, the ABB CI855K01 MasterBus300 interface kit provides stable and reliable cross-generation network connection for your ABB automation system.

Store Recommendation：ABB MasterBus300 module

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