ABB CI840A 3BSE041882R1 Communication Interface Module

Brand: ABB

Product Series: System 800xA / S800 I/O System

Model: CI840A (Part Number / Ordering Code: 3BSE041882R1)

Product Type: PROFIBUS DP-V1 Fieldbus Communication Interface Module

ABB CI840A 3BSE041882R1 Communication Interface Module

Technical Parameters:

System Architecture: High-performance fieldbus interface module engineered for direct mounting on TU840, TU841, or TU848 module termination units (MTUs) to bridge S800 I/O clusters to central control systems.

Communication Protocol: Fully compliant with PROFIBUS DP-V1 standard, supporting high-speed cyclic data transmission and DP-V1 acyclic parameterization and diagnostic services.

Baud Rate & Speed: Supports standard PROFIBUS transmission speeds from 9.6 kbit/s up to 12 Mbit/s with automatic baud rate detection.

System Capacity: Controls and manages up to 24 S800 I/O modules per cluster or up to 12 S800 I/O modules per I/O station segment.

Redundancy Support: Built-in support for PROFIBUS DP-V1 redundant line configurations and dual redundant CI840A module arrangements when paired with TU840 or TU848 MTUs.

Hot Configuration in Run (HCIR) & Hot-Swap: Supports full online module replacement and dynamic system reconfigurations without disturbing active controller execution or power to adjacent modules.

Galvanic Isolation & Immunity: Optically isolated RS-485 physical layer preventing ground potential loops and isolating internal processing circuits from field electrical noise.

Power Supply & Current Consumption: Powered via the MTU baseplate (24 V DC system supply range: 19.2 V DC to 30 V DC) with typical power consumption of approximately 2.6 W.

Conformal Coating & Rating: IP20 protection class with ISA 71.04 G3 compliant conformal coating for harsh industrial environment resistance.

Diagnostic Telemetry: Front-panel LED indicators displaying operational states for Power, Fault, Run, Tx/Rx traffic, and Redundancy channel selection.

Operating Thermal Range: Standard operating temperature envelope from 0°C to +55°C (storage thermal range: -40°C to +70°C).

Physical Profile: Modular S800 form factor measuring approximately 45 mm (W) x 136 mm (H) x 115 mm (D) with a net weight of approximately 0.25 kg.

Industrial Sectors:

Chemical and Petrochemical Processing, Oil and Gas Offshore and Onshore Production, Electric Power Generation and Utilities, Pulp and Paper Manufacturing, Water and Wastewater Infrastructure, and Heavy Metallurgy and Mining.

Application Scenarios:

1. Distributed S800 I/O Cluster Integration: Serves as the primary communication gateway inside remote I/O enclosures, interfacing field instrumentation signals with ABB System 800xA or third-party PROFIBUS DP master controllers.

2. High-Availability Redundant DCS Networks: Installed in critical continuous process plants in dual-redundant pairs to ensure zero data interruption during field network line faults or module maintenance.

3. Smart Instrumentation & Asset Management: Utilizes PROFIBUS DP-V1 acyclic channels to transfer device parameters, HART instrument telemetry, and continuous diagnostic health data to central engineering workstations.

4. Continuous Process Automation Modernization: Applied during plant expansions and control system retrofits to add high-density S800 I/O channels without stopping running processes, leveraging Hot Configuration in Run (HCIR) capabilities.