ABB CI854 3BSE025349R1 PROFIBUS‑DP Master Communication Interface Module

Technical Specifications

• Model: CI854

• Part Number: 3BSE025349R1

• Brand: ABB

• Product Type: PROFIBUS‑DP master communication interface module

• Communication Protocol: PROFIBUS‑DP‑V0

• Bus Connector: Dual 9‑pin D‑Sub female connectors for line redundancy

• Backplane Bus: CEX‑Bus for AC800M controller, max 12 modules per controller

• Max Nodes: Up to 98 PROFIBUS‑DP slave stations

• Baud Rate: 9.6kbit/s ~ 12Mbit/s adaptive

• Feature: Support hot‑swap, PROFIBUS line redundancy

• Power Supply: Powered by CEX‑Bus backplane bus

• Operating Temperature: 0℃ ~ +55℃, non‑condensing

• Protection Class: IP20

• Weight: 0.48kg

• Mounting: Rack‑slot installation, matched with TP853 baseplate

• Compatible System: ABB AC800M DCS, System 800xA

• Core Function: Act as PROFIBUS‑DP master station, realize cyclic process data exchange between AC800M controller and PROFIBUS‑DP slave devices, improve network reliability via redundant bus channels.

Product Details

The CI854 3BSE025349R1 is high‑reliability PROFIBUS‑DP Master Module for ABB AC800M DCS platform, it is AC800M DP Redundant Fieldbus Interface Unit.

This version is equipped with dual D‑Sub PROFIBUS ports to support physical line redundancy, effectively avoid communication failure caused by single cable damage. It works as PROFIBUS‑DP master station, connects various field slave devices including S800 remote I/O, drives and third‑party instruments. Process data is cyclically transmitted to AC800M main CPU through CEX‑Bus backplane bus. Hot‑swap function allows module replacement without shutting down control rack, minimizing equipment maintenance downtime.

Front‑panel LED indicators show module power status, CEX‑Bus running state and PROFIBUS‑DP bus link condition. Built‑in hardware self‑diagnosis can detect bus short‑circuit, cable breakage and module internal faults, fault alarm information will be uploaded to DCS operator workstation. Industrial‑grade circuit design meets strict EMC anti‑interference requirements of heavy‑industry control cabinet.

The module must work with TP853 baseplate for rack‑slot installation. Widely applied in thermal power, petrochemical, pulp‑paper and metallurgy industries. It is critical fieldbus hardware for redundant PROFIBUS‑DP network construction, remote I/O expansion and defective CI854 communication module replacement for legacy AC800M automation projects.