ABB CI854A 3BSE030221R1
The ABB CI854A 3BSE030221R1 is a high-performance Profibus DP master communication interface module designed by the ABB Group for its AC 800M high-end process controller. Serving as a "network hub" in ABB automation systems, this module is specifically engineered to enable high-speed data exchange between the AC 800M controller and distributed Profibus DP field devices. As the master station of the Profibus network, the ABB CI854A module can manage and control up to 125 slave devices—such as frequency converters, remote I/Os, instruments, and actuators—to build an efficient distributed control system.
Product Specifications
Product Model: CI854A
Ordering Number: 3BSE030221R1
Manufacturer: ABB
Product Type: Profibus DP Master Communication Module
Applicable Controller: AC 800M Series
Communication Protocol: Profibus DP (Compliant with EN 50170)
Communication Rate: 9.6Kbps to 12Mbps (Auto-detection)
Maximum Number of Slaves: 125
Data Throughput: 244 bytes input / 244 bytes output (per slave)
Interface Type: 9-pin D-sub connector (Compliant with Profibus standards)
Isolation Voltage: 500V AC (Between communication interface and system)
Power Requirement: 5VDC @ 500mA (Supplied by AC 800M backplane)
Operating Temperature: -40°C to +70°C
Storage Temperature: -40°C to +85°C
Protection Class: IP20
Certifications: CE, UL, cULus, ATEX
Structure and Composition
The ABB CI854A module adopts a robust metal housing design, complying with the modular standards of the AC 800M series. Its front panel is equipped with a 9-pin D-sub Profibus interface, a set of status indicators (including power, operation, fault, and communication activity), and a red operating handle. Internally, the module is built on a high-performance communication processor architecture, integrating dedicated Profibus protocol processing chips, dual-port memory, signal conditioning circuits, and optoelectronic isolation devices:
The communication processor handles the Profibus DP protocol stack and data exchange;
The dual-port memory enables high-speed data exchange with the AC 800M controller;
The signal conditioning circuits ensure the integrity of Profibus signals;
The optoelectronic isolation devices provide 500V electrical isolation to protect system-side circuits from on-site interference.
The module connects to the AC 800M backplane via a 96-pin connector at the rear, obtaining operating power and realizing data exchange with the controller.
Key Features and Advantages
1. High-Performance Communication Processing
The ABB CI854A supports high-speed Profibus DP communication at 12Mbps, capable of managing up to 125 slave devices and providing maximum input/output data exchange capacity (244 bytes per slave for both input and output). Its dedicated protocol processing chip ensures real-time and deterministic communication, meeting the strict timing requirements of process control.
2. Powerful Diagnostic Functions
The module offers comprehensive network diagnostic capabilities to monitor the Profibus network status in real time, detecting issues such as slave faults, communication interruptions, and signal quality problems. The multi-function status indicators on the front panel provide intuitive network status displays, facilitating rapid fault location and maintenance.
3. High-Reliability Design
Adopting industrial-grade components and a wide temperature range design (-40°C to +70°C), the module adapts to harsh industrial environments. The 500V electrical isolation protects the system from on-site interference, ensuring long-term stable operation. It also supports hot-swapping, allowing module replacement during system operation to significantly reduce maintenance downtime.
4. Flexible Configuration and Maintenance
Network configuration and parameter setting can be easily performed via ABB’s Control Builder engineering tool. The module supports GSD file import and is compatible with various Profibus DP slave devices. Its modular design simplifies installation and maintenance, and it supports online configuration updates to minimize system downtime.
Application Fields
The ABB CI854A module is widely used in industrial automation fields requiring distributed control:
In the process industry, it connects distributed I/O stations, frequency converters, flowmeters, and other on-site devices;
In the manufacturing industry, it supports distributed control of production lines;
In the energy sector, it integrates on-site devices for power plant DCS systems;
In the water treatment industry, it controls pump stations and valves;
In the chemical industry, it monitors reactors and pipelines;
In the papermaking industry, it controls drive systems.
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