CI840A-1 3BSE041883R1 ABB Communication Module for S800 I/O Systems Resistance Temperature Device Input Module delivering high signal fidelity for

delivering high signal fidelity for critical applications

Seamless Experion PKS Integration

Turbomachinery Diagnostics: For monitoring shaft displacement and vibration in turbines

Board status indicators: Two LEDs and one neon indicator for diagnostics

CI840A-1 3BSE041883R1 ABB Communication Module for S800 I/O Systems Resistance Temperature Device Input Module delivering high signal fidelity forOverview The ABB CI840A 1 is a robust and compact communication module engineered for industrial automation systems that require reliable and scalable I O integration. It is part of the S800 I O family, which is widely used in System 800xA environments for process control, power generation, and manufacturing. This module supports the PROFIBUS DP V1 protocol, enabling fast and deterministic communication with field devices. It is designed for redundant