ABB CI840A 3BSE041882R1 Profibus DP-V1 Communication Interface Module
Product Overview
The ABB CI840A (Part Number: 3BSE041882R1) is a high-performance Fieldbus Communication Interface (FCI) specifically designed for S800 I/O systems within ABB System 800xA and Symphony Plus architectures. It serves as the intelligent gateway between the PROFIBUS DP-V1 network and the S800 I/O modules via the Modulebus. Engineered for high-availability environments, the CI840A supports 1+1 redundancy, ensuring that if the primary interface fails, the backup takes over instantly without process interruption. This module is a crucial component for distributed control systems (DCS), allowing high-speed data exchange at rates up to 12,000 kbit/s while providing advanced diagnostic capabilities for field-level assets.
Technical Specifications
Detailed technical parameters for the CI840A communication interface:
| Parameter | Specification Details |
| Model Number | CI840A |
| Product ID | 3BSE041882R1 |
| Manufacturer | ABB |
| Series | S800 I/O |
| Protocol | PROFIBUS DP-V1 |
| Communication Speed | 9.6 kbit/s to 12,000 kbit/s |
| Redundancy | Supports 1+1 redundant operation |
| Modulebus Capacity | Up to 12 I/O modules (Single) / 24 (with clusters) |
| Input Voltage | 24 VDC (19.2 – 30V range) |
| Power Consumption | Typ. 160 mA |
| Isolation | Galvanic isolation from PROFIBUS and logic |
| Dimensions (WxHxD) | 45 mm x 119 mm x 102 mm |
| Shipping Weight | 2.0 kg – 3.0 kg (with packaging) |
| Operating Temp | -20 °C to +55 °C |
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Guide
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