Products Description
ABB CI867K01 3BSE043660R1 Modbus TCP Communication Interface Module
The ABB CI867K01 3BSE043660R1 is a Modbus‑TCP communication interface module for ABB AC 800M controller and 800xA DCS platform. It establishes Ethernet‑based Modbus TCP data link, realizing bidirectional data exchange between ABB control system and third‑party Modbus‑TCP field devices, such as instruments, drives and remote I/O units. It serves as a key gateway for heterogeneous equipment integration in process automation sites.


This module is equipped with dual Ethernet ports, supports hot‑swap and module redundancy configuration together with matching TP867 baseplate. It can handle multiple master and slave connections, with built‑in diagnostic LED indicators for on‑site troubleshooting. Widely used as aftermarket spare hardware for power, petrochemical and pulp‑paper industries for DCS system maintenance, communication expansion and technical retrofitting projects.
Main Specifications
- Brand: ABB; Model: CI867K01, Part No:3BSE043660R1; Type: Modbus‑TCP Communication Interface Module
- Compatible System: ABB AC 800M controller, 800xA distributed control system, equipped with TP867 baseplate
- Core Function: Modbus‑TCP protocol conversion, interconnection between ABB controllers and third‑party Modbus‑TCP devices
- Port Resource: Dual 10/100Mbps Ethernet RJ45 ports, backplane bus interface, status LED indicators
- Supported Feature: Hot‑swap, module redundancy, multiple master‑slave connections, channel diagnostic function
- Hardware Feature: Rack‑mount structure, 24VDC power supply, industrial anti‑interference design, IP20 protection grade
- Supply Status: Aftermarket spare part for ABB 800xA / AC800M system maintenance, replacement and communication expansion
Core Functions
- Act as Modbus‑TCP gateway, finish protocol conversion between AC800M backplane bus and Modbus‑TCP industrial Ethernet network.
- Realize read‑write access to third‑party Modbus‑TCP instruments, frequency converters, meters and remote I/O modules for process data acquisition and control output.
- Support module redundancy configuration; automatic switchover occurs when primary module fails, improving overall communication reliability for critical control loops.
- Support hot‑swap operation, technicians can replace faulty module without shutting down the whole DCS control rack, reducing plant downtime risk.
- Handle multiple master‑slave connection sessions, satisfy communication demands of large‑scale field device networking within process automation plant.
- Deliver hardware and communication status via LED indicators, help maintenance staff quickly locate link abnormality and module fault on production site.
Application Scenarios
- Third‑party device interconnection for ABB AC800M / 800xA DCS systems in power, petrochemical, chemical and pulp‑paper industries.
- Fault communication‑interface module replacement and routine maintenance for existing ABB control rack cabinets.
- Communication hardware upgrade and technical transformation for aging process‑control automation systems.
- Emergency swap for Modbus‑TCP communication failure of continuously‑running critical production control equipment.
- Spare‑parts stocking for factory maintenance teams and automation integrators supporting ABB 800xA control platforms.
- Aftermarket spare supply for industrial modernization and technical‑service projects of ABB DCS process automation systems.
FAQ
- Q: Can CI867K01 run without TP867 baseplate and AC800M rack?
A: It must cooperate with TP867 baseplate and be inserted into AC800M backplane rack, cannot work as standalone Modbus‑TCP gateway hardware. - Q: What are typical module failure symptoms?
A: Modbus‑TCP device communication interruption, data reading loss, link LED alarm, failure of data exchange between controller and field Modbus devices. Q: How to complete commissioning and diagnosis?
A: Check 24VDC power supply and Ethernet cable wiring; configure Modbus‑TCP parameter table via Control Builder software, observe module LED status for fault analysis.

Tags: ABB CI867K01 3BSE043660R1 Modbus TCP Communication Interface Module
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