Description
ABB CI855K01 Product Documentation
1. Product OverviewThe
ABB CI855K01 is a high-performance communication interface module designed for industrial automation systems, particularly within ABB’s
System 800xA Distributed Control System (DCS) and
AC 800M Controller platforms. As a key component of ABB’s modular architecture, this module enables seamless integration between legacy systems (e.g., Advant Controller 410/450) and modern control environments, ensuring backward compatibility while supporting advanced communication protocols such as
MB 300,
Profibus DP, and
Modbus TCP/IP 9.
Equipped with dual Ethernet ports and a TP853 baseplate, the CI855K01 provides network redundancy and real-time data exchange for critical applications in industries like oil & gas, power generation, and water treatment. Its compact design (59 mm x 185 mm x 127.5 mm) and DIN-rail mounting facilitate easy installation in space-constrained environments 9.
2. Technical Specifications
Parameter |
Details |
Model |
CI855K01 3BSE018106R1 |
Brand |
ABB |
Voltage |
24V DC (±10%) |
Current |
≤150 mA |
Communication Protocols |
MB 300, Profibus DP, Modbus TCP/IP |
Transmission Speed |
10 Mbit/s (MB 300), 10/100 Mbit/s (Ethernet) |
Data Transfer Rate |
200 datasets/s (MB 300) |
I/O Capacity |
Supports up to 12 devices on CEX-BUS |
Operating Temperature |
-20°C to +60°C (industrial), -40°C to +85°C (storage) |
Protection Class |
IP20 (EN 60529) |
Weight |
0.7 kg (including baseplate) |

ABB CI855K01
3. Key Advantages
- Dual Redundancy: Two independent Ethernet ports ensure continuous operation during network failures, reducing downtime by 60% compared to single-port modules 9.
- Legacy System Integration: Seamlessly bridges older MB 300-based systems (e.g., Advant Controller 410/450) with modern AC 800M controllers, eliminating the need for full system overhauls 9.
- High Reliability: DC 1500V voltage isolation and reverse polarity protection safeguard against electrical surges, while hot-swap capability allows module replacement without system shutdown 9.
- Energy Efficiency: Low-power design consumes ≤150 mA, reducing operational costs in large-scale installations.
4. Applications
The CI855K01 excels in:
- Process Control: Reactor automation in chemical plants and pipeline monitoring in oil & gas facilities.
- Power Generation: Grid integration and turbine control in power plants.
- Water Treatment: Pump station automation and wastewater management systems.
Case Study: A pharmaceutical manufacturer upgraded its legacy Advant Controller 450 system to ABB 800xA using the CI855K01, achieving a 30% reduction in maintenance costs by consolidating communication infrastructure while maintaining compatibility with existing field devices 9.
5. Competitor Comparison
Compared to similar industrial communication modules, the CI855K01 offers:
- Faster Data Transfer: 200 datasets/s (MB 300) vs. 150 datasets/s industry average.
- Broader Protocol Support: Native integration of MB 300, Profibus DP, and Modbus TCP/IP, eliminating the need for additional gateways.
- Enhanced Security: Built-in encryption and role-based access control for secure industrial network operations 9.

ABB CI855K01
6. Selection Recommendations
- System Compatibility: Verify compatibility with ABB’s AC 800M or 800xA platforms and legacy MB 300 systems.
- Environmental Needs: Ensure compliance with temperature (-20°C to +60°C) and humidity (5–95% non-condensing) standards.
- Future-Proofing: Choose the CI855K01 for projects requiring scalable communication infrastructure or integration of multi-vendor systems.
7. Installation & Maintenance Notes
- Safety Compliance: Follow ABB’s EMC guidelines to minimize electromagnetic interference in high-noise environments.
- Firmware Updates: Regularly update software via ABB’s Automation Builder to access new features and security patches.
- Physical Handling: Use anti-static gloves during installation to prevent ESD damage.
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