Description
The CI854K01 3BSE025961R1 is a specialized, high-performance communication interface module manufactured by ABB for its System 800xA and Symphony™ Plus distributed control systems (DCS). This module serves as a critical gateway, specifically engineered to provide a robust and deterministic PROFIBUS DP-V1 master interface. Its core function is to enable seamless, real-time data exchange and control between the central AC 800M high-performance controllers and a wide array of PROFIBUS DP-compatible field devices, such as remote I/O stations, motor starters, variable frequency drives (VFDs), sensors, and actuators. The CI854K01 3BSE025961R1 is an essential component for integrating decentralized peripherals into a unified control architecture, leveraging one of the most established and widely adopted fieldbus standards in industrial automation.
Designed for reliability and precise control in demanding environments, the CI854K01 3BSE025961R1 module integrates natively into the S800 I/O system. It acts as a powerful master controller on the PROFIBUS network, actively polling data from and issuing commands to up to 125 slave devices. This capability allows for the creation of efficient, networked control systems that significantly reduce wiring complexity and costs compared to traditional point-to-point wiring. The value of the CI854K01 3BSE025961R1 lies in its ability to provide deterministic performance, high data integrity, and seamless integration of a vast ecosystem of PROFIBUS devices into the ABB DCS environment, making it a cornerstone for both modernizations and greenfield projects in process and hybrid industries.

CI854K01 3BSE025961R1 ABB
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | CI854K01 3BSE025961R1 |
| Manufacturer | ABB |
| Product Type | PROFIBUS DP-V1 Master Communication Interface Module |
| Fieldbus Protocol | PROFIBUS DP (Decentralized Periphery) compliant to EN 50170, Version DP-V1 |
| Number of Channels | 1 |
| Data Transfer Rate | 9.6 kbps to 12 Mbps (auto-sensing) |
| Number of Slave Devices | Up to 125 |
| Max I/O Data | Up to 244 bytes of input and 244 bytes of output per slave |
| Physical Interface | RS-485, 9-pin D-sub female connector |
| Diagnostics | Comprehensive module, network, and slave-level diagnostics |
| Protocol Features | Support for SYNC/FREEZE, DPV1 acyclic services |
| Power Supply | Backplane powered via the S800 unit base (24V DC) |
| Power Consumption | 1.8 W typical |
| Operating Temperature | 0°C to +60°C (+32°F to +140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Certifications | UL, cUL, CE, ATEX, IECEx |
Main Features and Advantages
The CI854K01 3BSE025961R1 excels as a high-performance PROFIBUS DP-V1 master, offering deterministic and reliable control over a large network of slave devices. Its support for the extended DP-V1 protocol enables advanced functionalities beyond standard cyclic data exchange, including acyclic communication for parameterization, calibration, and detailed diagnostic reporting from intelligent field devices. This is crucial for advanced asset management and predictive maintenance strategies, allowing operators to access detailed device information directly from the DCS engineering station. The module’s auto-baud detection feature automatically synchronizes with the network’s data transfer rate, simplifying commissioning and startup procedures.
Advanced engineering and robust diagnostics: Configuration of the CI854K01 3BSE025961R1 is fully integrated into ABB’s unified Control Builder engineering suite. The module is configured using standard GSD (General Station Description) files for each slave device, allowing for a straightforward setup process that includes automatic validation of configuration consistency. The module provides extensive diagnostic capabilities, offering detailed status information on the health of the entire PROFIBUS network, individual slave devices, and their modules. These diagnostics are accessible both through LED indicators on the module’s front plate and comprehensively within the Control Builder software, enabling rapid fault identification, localization, and resolution, which minimizes system downtime. The robust industrial design ensures stable and noise-immune communication in electrically harsh environments.
Application Field
The CI854K01 3BSE025961R1 is deployed across a vast spectrum of continuous and batch process industries where the integration of PROFIBUS DP devices into an ABB DCS is required. In the chemical and pharmaceutical industries, the module is used to connect intelligent motor control centers (MCCs), variable frequency drives (VFDs) on agitators and pumps, and weighing systems to the main control system, enabling precise process control and energy management. In oil and gas and petrochemical facilities, the CI854K01 3BSE025961R1 integrates critical packaged units, such as compressor control panels and turbine governor systems, which often utilize PROFIBUS for internal communication.
Within water and wastewater treatment plants, this module is instrumental in connecting remote I/O panels distributed across the plant site, as well as intelligent instruments and valve actuators. In manufacturing and automotive sectors, it provides a reliable network for connecting PLCs, robotic controllers, and conveyor control systems to the overarching DCS for production monitoring and coordination. The CI854K01 3BSE025961R1 is the ideal solution for any application requiring a robust, high-performance, and native PROFIBUS DP master interface within the ABB System 800xA or Symphony™ Plus control system framework, ensuring seamless interoperability with a wide range of field devices.

CI854K01 3BSE025961R1 ABB
Related Products
TU833 3BSE013258R1: A high-density S800 I/O unit base designed for communication modules like the CI854K01 3BSE025961R1.
AC 800M Controller (e.g., PM863): The high-performance controller that manages the S800 I/O station where the CI854K01 module resides.
S800 I/O Modules (e.g., AI810, DI810): The various analog and digital I/O modules that can be used alongside the CI854K01 in the same station.
SD821 3BSE018105R1: A power supply module for the S800 I/O rack.
PROFIBUS Network Components: Includes cables, connectors, and repeaters required to establish the physical PROFIBUS network.
CI855: A PROFIBUS DP Slave communication interface module for a different network role.
Control Builder Professional: The essential engineering software used to configure and commission the CI854K01 3BSE025961R1 module and its connected slaves.
Installation and Maintenance
Pre-installation preparation: Before installing the CI854K01 3BSE025961R1, ensure all power to the S800 I/O rack is disconnected. Verify the correct unit base (e.g., TU833) is installed. Plan the PROFIBUS network topology, including the unique address for each slave device and the required network termination. Set the module’s PROFIBUS node address via the rotary coding switches on its front. Ensure the operating environment is within the specified temperature and humidity ranges. Have the GSD files for all connected slave devices ready for import into the Control Builder project.
Maintenance recommendations: The CI854K01 3BSE025961R1 requires minimal physical maintenance. The primary maintenance activities involve monitoring its operational status through the diagnostic LEDs on the front panel and the extensive diagnostic information available in the Control Builder software. Regularly check the integrity of the PROFIBUS network connection and ensure the 9-pin D-sub connector is secure. Utilize the module’s built-in diagnostics to proactively identify and locate network issues, such as slave drop-outs or communication errors, allowing for timely intervention before they impact process performance. Periodically inspect for dust accumulation and ensure adequate ventilation.






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