ABB CI853-1

Description

Product Overview and Description

The ABB CI853-1 is a high-performance Communication Interface module designed for use with ABB’s S800 I/O system, a modular and flexible I/O platform widely deployed in ABB’s distributed control systems (DCS) such as 800xA and Symphony Plus. This module serves as the gateway between the S800 I/O station and a Profibus DP (Decentralized Periphery) network. The ABB CI853-1 allows the S800 I/O station to act as a Profibus DP slave, connecting to a higher-level Profibus DP master, typically an ABB controller like the AC 800M or a third-party PLC/DCS.

The CI853-1 module is engineered for reliable operation in harsh industrial environments and features high-speed communication, galvanic isolation, and comprehensive diagnostic capabilities. It mounts on a standard S800 I/O rail and interfaces directly with the S800 I/O backplane. The use of the ABB CI853-1 enables seamless integration of distributed I/O points into a Profibus DP network, providing flexibility and scalability for large-scale automation projects in industries such as oil and gas, chemicals, power generation, and pulp and paper.

Technical Parameters

Based on the analysis of ABB S800 I/O series documentation, the ABB CI853-1 possesses the following key characteristics:

• Device Type: Profibus DP Communication Interface Module for S800 I/O.
• Supported Protocol: Profibus DP-V0/DP-V1 (Slave).
• Communication Speed: Supports standard Profibus baud rates from 9.6 kbps up to 12 Mbps (automatic detection).
• Station Address: Configurable Profibus slave address (typically 0-125) via rotary switches or software.
• Data Exchange: Exchanges process data and diagnostics with the Profibus DP master via cyclic and acyclic communication.
• Module Status: Front-panel LED indicators for network status (bus communication), module health, and fault conditions.
• Galvanic Isolation: Provides isolation between the Profibus interface and the S800 I/O backplane.
• Power Supply: Powered via the S800 I/O rail from a separate power supply module (e.g., SD831, SD832).
• Mounting: Mounts on a standard S800 I/O DIN-rail mounting base.
• Configuration: Configured using ABB’s Control Builder or CBM software, using standard GSD (Generic Station Description) files.
• Part Number: ABB CI853-1 is the specific model identifier for this Profibus DP slave interface.

Advantages and Key Features

The ABB CI853-1 offers several key advantages for distributed automation systems:

• Seamless Integration: The CI853-1 allows S800 I/O stations to become native nodes on a Profibus DP network, integrating perfectly with ABB controllers and third-party systems that support Profibus master functionality.
• High-Speed Communication: With support for baud rates up to 12 Mbps, the ABB CI853-1 provides fast and deterministic data exchange with the Profibus master, essential for time-critical applications.
• Distributed I/O Architecture: By using the CI853-1, large numbers of I/O points can be distributed across a plant floor and connected back to a central controller via a single Profibus cable, significantly reducing wiring costs.
• Comprehensive Diagnostics: The module’s diagnostic features simplify troubleshooting. Status LEDs on the ABB CI853-1 provide immediate visual feedback on network health, and detailed diagnostics are available via the Profibus master.
• Robust Design: Built to ABB’s industrial standards, the CI853-1 is designed to withstand temperature extremes, vibration, and electrical noise common in industrial environments.

Application Cases in Key Industries

The ABB CI853-1 is used in a wide variety of industries where ABB DCS and S800 I/O systems are deployed:

• Oil and Gas Production: The CI853-1 connects remote I/O racks at wellheads or on offshore platforms to a central Profibus master controller, consolidating data from numerous field instruments.
• Chemical Processing: In a chemical plant, the module links distributed S800 I/O stations monitoring reactors, distillation columns, and storage tanks to the main control room DCS.
• Power Generation: The ABB CI853-1 can be used to connect I/O for balance-of-plant equipment (pumps, fans, valves) to the turbine control system over a Profibus network.
• Pulp and Paper: In a paper mill, distributed S800 I/O racks connected via CI853-1 modules manage thousands of signals from sensors and actuators throughout the production line.
• Water and Wastewater Treatment: The module enables communication with remote I/O at pumping stations and treatment basins, centralizing control and monitoring.

Comparison with Competitors

In the market for Profibus slave interfaces for I/O systems, ABB’s primary competitors are Siemens (ET 200M), Emerson, and Yokogawa.

• ABB CI853-1 vs. Siemens ET 200M IM 153: Both serve a similar purpose. The CI853-1 is the native solution for ABB’s S800 I/O ecosystem, ensuring optimal compatibility and support within ABB systems, while Siemens’ IM 153 serves its own ET 200M family.
• ABB CI853-1 vs. Emerson: Emerson offers comparable fieldbus interfaces for its I/O systems. The ABB CI853-1 is specifically designed for the S800 I/O platform, guaranteeing seamless integration with ABB controllers and engineering tools.
• ABB CI853-1 vs. Yokogawa: Yokogawa has its own fieldbus solutions. The CI853-1 is a key component for ABB’s distributed I/O strategy, providing a reliable and proven interface for Profibus DP networks.

Selection Recommendations and Precautions

1. System Compatibility: The ABB CI853-1 is designed for use with S800 I/O racks and ABB controllers (like AC 800M) that support Profibus DP master functionality. Verify compatibility with your specific system components.
2. GSD File: You will need the Generic Station Description (GSD) file for the CI853-1 to configure the Profibus master. Ensure this file is available for your master configuration tool.
3. Network Termination: A Profibus DP network must be properly terminated at both ends. Ensure your network cabling and connectors include appropriate termination resistors to prevent signal reflections and communication errors when using the ABB CI853-1.
4. Bus Cable and Connectors: Use high-quality, shielded, twisted-pair Profibus cable and connectors for all connections to the CI853-1 to ensure reliable communication, especially at higher baud rates.
5. Configuration Software: Configuration of the ABB CI853-1 (slave address, data mapping) is performed within ABB’s engineering software (e.g., Control Builder). Ensure you have the necessary knowledge and software version to properly set up the module.

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