ABB CI627A 3BSE017457R1

¥3,299.00

The ABB CI627A 3BSE017457R1 is a specialized communication interface module for the ABB System 800xA and Advant Controller AC 800M platform. This module functions as a vital gateway, enabling the high-performance controller to communicate with ABB’s extensive range of S800 I/O (Input/Output) over a high-speed, deterministic fieldbus network. The primary role of the ABB CI627A is to manage the exchange of process data between the controller’s CPU (like a PM861 or PM865) and the distributed S800 I/O stations, which house analog and digital modules. It implements the Controller Link protocol, a robust and fast ABB-proprietary serial communication system designed for real-time control. The integration of the CI627A module into an AC 800M rack is a fundamental step in building a scalable and responsive control architecture for large process plants, ensuring that sensor readings and actuator commands are transmitted with minimal latency and high reliability.

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Description

Product Overview and Description

The ABB CI627A 3BSE017457R1 is a specialized communication interface module for the ABB System 800xA and Advant Controller AC 800M platform. This module functions as a vital gateway, enabling the high-performance controller to communicate with ABB’s extensive range of S800 I/O (Input/Output) over a high-speed, deterministic fieldbus network. The primary role of the ABB CI627A is to manage the exchange of process data between the controller’s CPU (like a PM861 or PM865) and the distributed S800 I/O stations, which house analog and digital modules. It implements the Controller Link protocol, a robust and fast ABB-proprietary serial communication system designed for real-time control. The integration of the CI627A module into an AC 800M rack is a fundamental step in building a scalable and responsive control architecture for large process plants, ensuring that sensor readings and actuator commands are transmitted with minimal latency and high reliability.

Product Parameters and Specifications

  • Product Type: Controller Link Communication Interface Module

  • Manufacturer Part Number (MPN): CI627A

  • ABB Article Number: 3BSE017457R1

  • Brand: ABB

  • System Compatibility: AC 800M High Performance Controller within System 800xA.

  • Communication Protocol: ABB Controller Link (a deterministic, master-slave fieldbus).

  • Data Transfer Rate: High-speed serial communication, typically 1.5 Mbps.

  • Topology: Supports a trunk-and-drop cable topology, connecting multiple remote S800 I/O stations (drops) to a single controller.

  • Maximum Stations: Capable of supporting a defined number of S800 I/O drops on a single link (e.g., up to 32 stations).

  • Cable Type: Uses a specific, shielded twisted-pair cable (e.g., ABB’s Controller Link cable).

  • Connectors: Typically uses 9-pin D-sub or proprietary circular connectors.

  • Isolation: Provides galvanic isolation between the controller backplane and the field communication network.

  • Power Supply: Powered directly from the AC 800M controller baseplate.

  • Status Indicators: Comprehensive LEDs for power, communication activity, transmit/receive status, and network errors.

  • Mounting: Plugs into a communication module slot in the AC 800M controller rack.

Key Advantages and Features

The key advantage of the ABB CI627A 3BSE017457R1 is its deterministic and high-performance integration within the ABB ecosystem, optimized for fast and reliable process data exchange. It provides a dedicated communication channel for I/O, separate from the plant Ethernet network, which enhances security and real-time performance for critical control loops. The module offers robust noise immunity, essential for reliable operation in electrically harsh industrial environments. Its configuration is fully integrated within the ABB Control Builder M engineering software, allowing for straightforward setup of the I/O network topology and device addressing. The module supports hot-redundant configurations (using two CI627A modules) to ensure communication path availability, which is critical for high-availability processes. The clear diagnostic LEDs facilitate quick troubleshooting of network connectivity issues.

Application Scenarios and Use Cases

This module is deployed in continuous process industries utilizing the AC 800M controller with distributed S800 I/O. Typical applications include:

  • Oil & Gas Refineries: Connecting a central AC 800M controller to dozens of remote S800 I/O racks located near distillation columns, compressors, and tank farms.

  • Chemical Plants: Facilitating communication between the main process controller and I/O stations scattered across reactor buildings, utility areas, and storage facilities.

  • Power Generation: Linking the boiler and turbine controller to I/O racks distributed across the turbine deck, feedwater systems, and burner management panels.

  • Water Treatment: Enabling a master controller to communicate with I/O drops at remote pump stations, filtration beds, and chemical dosing skids.

In these scenarios, the ABB CI627A forms the reliable data highway that makes distributed control practical and efficient.

Comparison with Competing Products

The ABB CI627A competes with communication interface modules from other DCS vendors that connect controllers to their proprietary I/O networks, such as the Siemens CP 443-5 for PROFIBUS connecting to ET 200M, or the Emerson DeltaV CIOC card for CHARM I/O. Compared to universal Ethernet-based I/O networks (PROFINET, EtherNet/IP), the Controller Link via the CI627A is a dedicated, serial fieldbus. Its strengths are determinism, simplicity, and proven reliability in ABB’s installed base. The choice is inherently tied to the selection of the ABB System 800xA; it is the designated and optimized communication path for S800 I/O within that system.

Selection Guidelines and Important Notes

Selection Advice:

  1. System Architecture Design: The ABB CI627A is selected as part of a complete AC 800M and S800 I/O system design. The number of I/O drops and total cable length must be within the Controller Link specifications.

  2. Redundancy Requirement: For critical applications, specify a redundant pair of CI627A modules. This requires specific configuration in the control software and may require a Y-cable or splitter for the network.

  3. Cable and Termination: Use only the specified ABB Controller Link cable and follow the installation manual precisely for trunk termination and grounding. Improper termination is a primary cause of communication faults.

  4. Software Configuration: The module and all connected S800 stations must be correctly configured in ABB’s Control Builder M software, including station addresses and I/O mapping.

Important Precautions:

  • Network Topology Rules: Strictly adhere to the Controller Link topology rules (trunk, drops, termination). Do not create star networks or excessive stub lengths.

  • Grounding and Shielding: The communication cable shield must be grounded at one end only (usually at the controller end) to prevent ground loops. Follow the EMC guidelines in the manual.

  • Handling and ESD: Handle the module as a sensitive electronic component, using proper ESD (electrostatic discharge) precautions.

  • Address Conflicts: Ensure each S800 I/O drop on the network has a unique station address. Duplicate addresses will cause communication failure.

  • Power Cycle for Replacement: While the controller may support hot-swap, it is often safest to power down the controller rack before installing or removing the ABB CI627A 3BSE017457R1 module.

  • Firmware Compatibility: Ensure the module’s firmware is compatible with the AC 800M CPU firmware and the Control Builder M project version.

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