ABB CI857 Communication Interface Module

Overview
The ABB CI857 (3BSE018144R1) is a high-performance communication interface module designed for seamless integration with ABB AC 800M controllers. Engineered for industrial switchgear environments, it provides stable Ethernet connectivity for INSUM systems, supporting precise time distribution, timestamping, and multidrop network configurations. Its compact DIN-rail mountable design allows easy installation without additional power supplies, as it draws power directly from the CEX-Bus.

Technical Specifications

Key Features

• Direct integration with INSUM switchgear for advanced monitoring.

• Supports function blocks via ABB INSUM Communication Library.

• Powered via CEX-Bus, eliminating external power needs.

• Robust industrial design with G3 corrosion protection.

• Reliable Ethernet-based communication for extended distances.

• Hot-swappable for minimal system downtime.

Applications

• Industrial switchgear monitoring and control.

• Process automation requiring accurate time-stamped communication.

• Energy distribution systems integrating AC 800M controllers.

FAQ

Q: Can multiple CI857 modules be connected on the same CEX-Bus?
A: Yes, up to 6 modules can operate on a single CEX-Bus.

Q: Is external power required for operation?
A: No, the module is powered directly from the CEX-Bus.

Q: Does it support hot-swapping?
A: Yes, the CI857 module supports hot-swapping without system interruption.

Comparison with Similar Modules
Compared to standard CI modules, the CI857 provides faster closed-loop response (~500 ms) and enhanced INSUM switchgear compatibility, making it ideal for complex industrial networks.