S800 I/O is a comprehensive, distributed and modular process I/O system that communicates with parent controllers and PLCs over industry-standard field buses. The CI840 Fieldbus Communication Interface (FCI) module is a configurable communication interface that performs operations such as signal processing, gathering of various supervision information, OSP handling, Hot Configuration In Run, HART pass-through and configuration of I/O modules. CI840 is designed for redundant applications. The FCI connects to the controller by way of the PROFIBUS-DPV1 fieldbus. Module termination units to use, TU846 with redundant I/O and TU847 with non-redundant I/O.
Description
The ABB CI840A PROFIBUS DP‑V1 Communication Interface Module is a high‑performance fieldbus interface designed for industrial automation networks. It enables seamless communication between distributed S800 I/O systems and PROFIBUS DP‑V1 control systems such as AC800M controllers and PLCs. The module supports PROFIBUS DP‑V1 protocol, supervisory I/O functions, hot configuration in run, and HART pass‑through for intelligent device connectivity.
Built for redundant applications, the CI840A supports line and module redundancy, enhancing system reliability and minimizing downtime. Its hot‑swap capability allows module replacement without disrupting operations, making it suitable for demanding industrial environments such as manufacturing, process control, and utilities.
keywords: ABB CI840A, PROFIBUS DP‑V1 Communication Interface, S800 I/O Module, Redundant Fieldbus Interface, Industrial Automation Communication, Hot Swap Interface, HART Pass‑Through Module
