ABB CI840A 3BSE041882R1 PROFIBUS Module
Function
The CI840A is a PROFIBUS DP-V1 slave module for ABB’s AC 800M controllers, enabling real-time communication with field devices (sensors, drives, I/O).
1. Key Features
✔ PROFIBUS DP-V1 (12 Mbps, EN 50170 compliant)
✔ 244 bytes I/O per node (cyclic/acyclic data)
✔ Hot-swappable (24V DC powered)
✔ LED diagnostics & GSD file support
2. Applications
Process control (chemicals, power plants)
Factory automation (robotics, conveyors)
Legacy device integration
3. Specs
Interface: RS-485 (9-pin D-sub)
Isolation: 500V AC
Certifications: CE, UL, ATEX
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