ABB CI867K01 3BSE043660R1 Modbus‑TCP Communication Interface Module

ABB CI867K01 (3BSE043660R1) is a dedicated Modbus‑TCP communication interface module for ABB AC 800M PAC under System 800xA platform. It acts as an independent communication co‑processor, offloading Modbus‑TCP data traffic from main CPU, realizing data exchange between AC800M controller and third‑party Modbus‑TCP devices such as drives, instruments and HMI units.

This module is equipped with dual RJ45 Ethernet ports, supporting master / slave mode and network redundancy configuration. It connects to controller via CEX bus, supports hot‑swap online replacement, and is configured through Control Builder M engineering software. It is widely used as replacement spare‑part for on‑site troubleshooting, equipment maintenance and DCS‑system retrofit projects.

Main Specifications

• Brand: ABB
• Model: CI867K01, Part No: 3BSE043660R1
• Product Type: Modbus‑TCP IP Communication Interface Module
• Bus Interface: CEX bus for AC800M controller connection
• Ethernet Ports: Dual RJ45, 10/100 Mbps auto‑negotiation
• Protocol Mode: Modbus‑TCP Master / Slave configurable
• Power Consumption: Typical 160 mA @24VDC
• Feature: Hot‑swap supported, channel‑level diagnosis, network redundancy available
• Engineering Tool: Control Builder M
• Mounting: Rack‑mount plug‑in installation with corresponding baseplate
• Operating Temperature Range: 0℃ ~ +55℃
• Application: Spare‑part replacement for industrial distributed control‑system communication‑equipment

Core Functions

• Realize Modbus‑TCP protocol data interaction between ABB AC800M controller and third‑party field devices
• Independent co‑processor undertakes Ethernet communication tasks to reduce main‑CPU load and guarantee control‑loop real‑time performance
• Dual‑Ethernet‑port design supports network redundant configuration to improve communication‑link reliability
• Support both master mode for polling field instruments and slave mode for responding to upper‑host SCADA requests
• Built‑in diagnosis function monitors communication status and reports link‑fault alarm to control system
• Support hot‑swap operation for online module replacement without interrupting system running status
• Seamless integration with System 800xA platform for convenient parameter configuration and status monitoring
• Standard rack‑mount structure simplifies cabinet installation, debugging and spare‑part replacement operation

Application Scenarios

• Thermal‑power‑plant System800xA DCS communication‑cabinet configuration projects
• Petrochemical‑industry process‑control‑system third‑party‑device interconnection supporting projects
• On‑site communication‑module fault replacement and AC800M‑system daily maintenance work
• Legacy automation‑system renovation for adding Modbus‑TCP interconnection capability
• Legacy ABB CI867‑series communication‑module spare‑parts replacement scenarios
• Spare‑parts inventory backup for heavy‑industry factory DCS control‑rack equipment
• Industrial control‑system communication‑hardware repair supporting engineering projects