ABB CI856K01 Communication Interface 3BSE026055R1 S100 I/O for AC 800M

Product ID: CI856K01

Order Number: 3BSE026055R1

Type: Communication Interface Module

Manufacturer: ABB (Sweden)

Category: DCS / PLC / S100 I/O System

Product Overview: Legacy I/O Integration

The ABB CI856K01 is a dedicated communication interface designed to bridge the AC 800M controller (CEX-Bus) with the S100 I/O system. A critical component for plant expansions and migrations, its primary advantage is the ability to reuse existing S100 I/O installations, including terminations and field wiring from older ABB Master or Advant OCS systems .

This module allows plant operators to upgrade their control logic to modern standards while preserving capital investment in legacy field devices.

Key Features & Benefits

Legacy Integration: Specifically designed to connect S100 I/O racks to the AC 800M CEX-Bus .

High Channel Density: Supports connection to up to 5 S100 I/O racks, with each rack accommodating up to 20 I/O boards .

Simplified Power Supply: Powered directly via the CEX-Bus from the processor unit; requires no external 24V DC power source .

Hot Swap Capability: Designed for high availability, allowing module replacement without shutting down the entire system .

Code Locking: Prevents mounting of incompatible components, ensuring system integrity .

Technical Specifications

Specification Details

Part Number 3BSE026055R1

System Compatibility ABB AC 800M, System 800xA (for legacy I/O)

I/O Protocol S100 I/O Bus

Electrical Interface CEX-Bus (via Baseplate) / Ribbon Connector to S100 Racks

Mounting DIN-rail mounting via TP856 Baseplate

Status Indication LED indicators for Power, Run, and Fault status

Dimensions (H x W x D) Approx. 186 mm x 59 mm x 127.5 mm

Weight Approx. 0.55 kg

RoHS Status Compliant (EU Directive 2011/65/EU)

Product Dimensions & Logistics

Product Net Depth/Length: 127.5 mm (5.02 in)

Product Net Height: 186 mm (7.32 in)

Product Net Width: 59 mm (2.32 in)

Country of Origin: Sweden

Applications

The CI856K01 is ideal for industries undergoing digital transformation but reliant on legacy hardware:

Process Industries: Oil & Gas, Chemical, Pharmaceutical (retrofitting existing field wiring).

Manufacturing: Automotive, Metal, and Paper mills utilizing older S100 racks.

Power Generation: Upgrading control systems without re-cabling field terminations.

ABB CI856K01

3BSE026055R1

ABB S100 I/O Interface

AC 800M communication module

ABB DCS module

Legacy I/O migration ABB

ABB CI856 Manual

Industrial communication interface