ABB CI840A Communication Interface Module

Description

The ABB CI840A Communication Interface Module is part of ABB’s portfolio of industrial communication modules designed for integration with the AC 800M Controller series, enabling connectivity between controllers, drives, I/O devices, and third-party systems. While specific technical data for the CI840A is unavailable, it aligns with the core functionality of comparable ABB communication modules. It supports industrial communication protocols like DriveBus, facilitating seamless data exchange with ABB drives and ABB I/O devices, and is optimized for specialized industrial applications such as segmented drive systems in rolling mill and paper machine control setups. Like related modules including the CI858 and CI857, it likely draws power via the CEX Bus from the connected processor unit, eliminating the need for external power supplies. It may support scalable configurations, with options to connect multiple drives or I/O devices, and can integrate with System 800xA or other controller field bus systems. Suitable for harsh industrial environments including chemical, pharmaceutical, oil and gas sectors, it may also support connection to remote I/O systems like S900, which can be installed in hazardous areas to reduce wiring and marshaling costs, while enabling unified access to field device data for streamlined operation and maintenance.