ABB CI855‑1 3BSE018134R1 Advant Fieldbus Communication Interface Module

Technical Specifications

• Model: CI855‑1

• Part Number: 3BSE018134R1

• Brand: ABB

• Product Type: AF100 fieldbus communication adapter module

• Fieldbus Protocol: ABB AF100 proprietary fieldbus

• Bus Interface: 9‑pin D‑Sub AF100 bus connector

• Backplane Bus: CEX‑Bus for AC800M controller

• Max Station Quantity: Up to 8 S800 I/O remote stations per module

• Maximum Transmission Distance: 1300m at low baud rate

• Feature: Support hot‑swap replacement

• Power Supply: Powered by CEX‑Bus backplane bus

• Operating Temperature: 0℃ ~ +60℃

• Protection Class: IP20

• Weight: 0.42kg

• Mounting: Rack‑slot installation

• Compatible System: ABB AC800M DCS, System 800xA

• Core Function: Establish AF100 fieldbus link between AC800M controller and S800 remote I/O stations for process data cyclic transmission

Product Details

The CI855‑1 3BSE018134R1 is dedicated AF100 Fieldbus Adapter Module for ABB AC800M DCS platform, it acts as core S800 Remote I/O Communication Unit. It is used to connect distributed S800 I/O stations via ABB AF100 fieldbus.

This module supports ABB AF100 fieldbus, it can connect up to 8 S800 remote I/O stations. It transmits digital and analog process signals between main controller and distributed field I/O. Data is exchanged with AC800M CPU through CEX‑Bus backplane bus, ensuring stable cyclic refresh of I/O data. Hot‑swap function allows module replacement without powering off control rack, minimizing maintenance downtime.

LED indicators on front panel show module power status, CEX‑Bus link and AF100 bus communication state. Built‑in hardware self‑diagnosis can detect bus open‑circuit, short‑circuit and internal hardware faults, and upload fault alarm information to DCS operator station. Industrial‑grade circuit design satisfies strict EMC anti‑interference requirements of industrial control cabinet.

Adopting standard rack‑slot mechanical structure, it can be installed together with CPU and other communication modules in one control rack. Widely applied in thermal power, petrochemical, pulp‑paper and metallurgy industries. It is essential communication hardware for distributed I/O expansion, AF100 bus network reconstruction and defective fieldbus adapter module replacement.