Model: CI801
Article Number: 3BSE022366R1
Brand: ABB
Series: S800 I/O
Core Function: Configurable Fieldbus Communication Interface that connects S800 I/O modules to a PROFIBUS DP-V1 network. It handles signal processing, I/O supervision, OSP (Output Set as Predetermined) handling, Hot Configuration In Run (HCIR), and HART pass-through.
HS Code: 8517.62 / 8538.90 (Apparatus for transmission or reception of voice, images or other data / Parts for electrical control apparatus)
Product Parameters
| Parameter | Specification |
|---|---|
| Product Type | Fieldbus Communication Interface (FCI) |
| Communication Protocol | PROFIBUS DP-V1 |
| Role | Slave |
| Line Redundancy | No |
| Module Redundancy | No |
| Hot Swap | No |
| HART Pass-through | Yes |
| Hot Configuration In Run (HCIR) | Yes |
| Power Supply | 24 V DC (typical consumption 140 mA) |
| Included Accessories | 1 × Power Supply Connector 1 × TB807 ModuleBus Terminator |
| Dimensions (W × H × D) | 85.8 × 136 × 58.5 mm (including latch) |
| Weight | 0.3 kg (0.66 lb) |
| Operating Temperature | 0 to +55 °C (+32 to +131 °F) |
| Storage Temperature | –40 to +70 °C |
| Protection Class | IP20 |
| Mounting | DIN-rail (S800 I/O station) |
| Compatible Systems | ABB 800xA, Compact Product Suite, S800 I/O |
Advantages and Features
- Seamless integration of S800 I/O into PROFIBUS DP-V1 networks
- Supports Hot Configuration In Run (HCIR) – configuration changes without stopping the station
- HART pass-through capability for smart field devices
- Isolated power supply to connected I/O modules
- Supervisory functions for ModuleBus and power monitoring
- Compact design for efficient use of panel space
- Marine certifications (ABS, BV, DNV-GL, LR) and hazardous area approvals (ATEX Zone 2, Class I Div 2 / Zone 2)
- Reliable performance in process automation environments
Application Cases in Application Fields
- Distributed I/O stations in ABB 800xA and Compact Product Suite systems
- Process industries (oil & gas, chemical, petrochemical, power generation)
- Integration of S800 I/O with third-party PROFIBUS DP masters
- Applications requiring HART device communication through the I/O system
- Marine and offshore installations
- Systems needing flexible, modular I/O expansion over PROFIBUS
Comparisons with Competing Products
| Aspect | ABB CI801 | CI840A (Redundant) | Ethernet FCI (e.g. CI845) |
|---|---|---|---|
| Protocol | PROFIBUS DP-V1 | PROFIBUS DP-V1 | Ethernet |
| Redundancy | None | Line + Module | Available |
| Hot Swap | No | Yes | Yes |
| HART Support | Yes | Yes | Yes |
| Complexity / Cost | Lower | Higher | Medium to High |
| Best For | Non-redundant PROFIBUS stations | High-availability PROFIBUS | Modern Ethernet-based systems |
Selection Suggestions and Precautions
Selection Suggestions:
- Use CI801 for standard (non-redundant) PROFIBUS DP-V1 connections of S800 I/O.
- For redundant PROFIBUS communication, select CI840A instead.
- Confirm that the host controller or PLC supports PROFIBUS DP-V1 master functionality.
- Note that the basic software in CI801 does not support certain I/O modules (DI825, DI830, DI831, DI885, AI880, DI880, DO880).
Precautions:
- Always install the supplied TB807 ModuleBus terminator.
- Ensure proper 24 V DC power supply quality and grounding.
- Follow ABB guidelines for PROFIBUS cable length, termination, and baud rate settings.
- Verify compatibility with the specific S800 I/O modules used in the station.
- Configuration is performed via ABB engineering tools (Control Builder / System 800xA).
- Observe temperature limits, especially for vertical mounting (max 40 °C).
Recent Popular Same-Brand / Related Models
- CI840A (3BSE041882R1) — Redundant PROFIBUS DP-V1 FCI
- CI845 — Ethernet Fieldbus Communication Interface
- TB820V2 / TB840A — ModuleBus optical modems
- TB807 — ModuleBus terminator (included with CI801)
- Other S800 I/O communication and base units
- Compatible S800 digital, analog, and special I/O modules
