CI840A 3BSE041882R1: PROFIBUS station and MTU pairing
ABB CI840A 3BSE041882R1 is an S800 fieldbus communication interface for PROFIBUS DP-V1. ABB describes I/O module supervision, OSP handling, HART pass-through and redundant arrangements with matching termination units.
Technical data for identification
| Technical item | Verified value / selection note |
|---|---|
| ABB article number | 3BSE041882R1 |
| Type | CI840A fieldbus communication interface |
| Protocol | PROFIBUS DP-V1 slave interface |
| Redundancy | Line and module redundancy supported |
| Termination units | TU846 for redundant I/O; TU847 for non-redundant I/O |
| Other functions | OSP handling and HART pass-through |
| Supply | 24 V DC system; check station power design |
For an automation component, trace every field signal or network link to its terminal unit, station interface, controller configuration and software revision. Define the safe operating response before maintenance begins.
Where this configuration fits
CI840A 3BSE041882R1 should be assessed in the actual equipment arrangement. Treat this interface as part of a complete fieldbus segment with address assignment, bus termination, cable length, power and controller configuration. A running station's redundancy mode should be documented before any module replacement.
A request for CI840A 3BSE041882R1 should identify the host system, process or motor duty, available supply and the expected normal and fault behavior. This makes the selection review specific to the installed equipment.
Related configuration references
The following CI840A 3BSE041882R1 family references are identification aids. Ratings, options and approvals can differ; each complete designation needs its own review.
- 3BSE041882R1
Order-code and compatibility review
For CI840A 3BSE041882R1, Check the correct TU846 or TU847 arrangement, configured PROFIBUS address, device description, system revision, I/O map and line-redundancy wiring. Confirm that the selected controller supports the required HART data path.
Before substituting CI840A 3BSE041882R1, compare the complete label with the engineering drawing, ABB configuration data, installed accessories and site approval record. A partial designation or a similar enclosure cannot establish interchangeability.
Information to send with a replacement inquiry
Provide the exact model CI840A 3BSE041882R1, quantity, serial or revision, application conditions, required connection and approval, and a legible nameplate photograph. Ask for confirmation of accessories and any approved successor.
Keep CI840A 3BSE041882R1 in the asset register and maintenance record as the exact search phrase. Record who approved the selected device, what was tested and whether the installed configuration differs from the base family specification.
Field checks and acceptance
Commissioning of CI840A 3BSE041882R1 should follow a controlled procedure. During a maintenance window, inspect the segment and station power, then replace the interface according to the system's hot-swap rules. Verify fieldbus diagnostics, I/O availability, HART path and failover behavior where redundancy is configured.
Capture the as-left settings, test points, abnormal-state response and revision of CI840A 3BSE041882R1. Include photographs of its nameplate and terminal arrangement so the next service event can be traced.
Final engineering decision
Approve CI840A 3BSE041882R1 only when the verified ratings and ordered options match the equipment record. Resolve every discrepancy in code, connection, supply, firmware or process limit before energizing the system.
The published family values for CI840A 3BSE041882R1 support identification and initial selection. The device nameplate, matching ABB instructions and the site's approved design determine final suitability.
