Description
The ABB CI858K01 3BSE018135R1 is a high-performance PROFIBUS DP-V1 master communication interface module for ABB’s AC 800M distributed control system (DCS). Designed for real-time industrial networking, this module enables seamless integration of field devices (sensors, drives, I/O) into plant-wide automation architectures. As part of ABB’s Industrial Automation portfolio, the ABB CI858K01 supports cyclic and acyclic data exchange at speeds up to 12 Mbps, facilitating precise control in process-critical applications. Its SIL 2 certification (IEC 61508) ensures reliability for safety-instrumented functions like emergency shutdowns.
The module features dual-redundant PROFIBUS ports with optical isolation, preventing ground loops and enabling ring topologies for fault-tolerant networks. Hot-swappable design allows maintenance without system downtime, while integrated diagnostics monitor cable integrity, node status, and signal quality. The ABB CI858K01 3BSE018135R1 operates in extreme conditions (-40°C to +70°C) and is certified for Zone 2 hazardous areas, making it ideal for oil/gas, power generation, and chemical processing. Configuration via Control Builder M engineering tools simplifies deployment, leveraging ABB’s CEX-bus technology for deterministic data transfer.

ABB CI858K01 3BSE018135R1
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | CI858K01 3BSE018135R1 |
| Manufacturer | ABB |
| Product Type | PROFIBUS DP-V1 Master Interface |
| Communication Protocol | PROFIBUS DP-V1 (IEC 61158/61784) |
| Data Rate | 9.6 kbps – 12 Mbps (auto-negotiating) |
| Ports | 2 (redundant RS-485, 9-pin D-Sub) |
| Isolation | 500 V AC (port-to-system) |
| Max Nodes | 125 devices per segment |
| Certifications | SIL 2, ATEX Zone 2, UL, CE |
| Backplane Interface | CEX-bus (100 Mbps) |
| Operating Temperature | -40°C to +70°C |
| Power Supply | 5 V DC via backplane (1.8 W typical) |
| Redundancy | Hot-standby support |
| Response Time | ≤1 ms (for 32-byte telegrams) |
| Dimensions | 155 x 25 x 125 mm |
Main Features and Advantages
Deterministic PROFIBUS control:
The ABB CI858K01 masters complex networks with ≤1 ms cycle times, synchronizing drives and I/O for precision batch processes. Dual ports enable redundant trunk-line or ring topologies, eliminating single-point failures. Integrated GSD library supports 3,000+ devices for plug-and-play commissioning.
Robust diagnostics and safety:
Real-time monitoring detects cable breaks, node failures, and signal degradation. SIL 2 compliance allows deployment in safety loops, while optical isolation protects the DCS from ground potential differences. The module’s “online module replacement” feature enables zero-downtime maintenance.
Harsh-environment resilience:
With -40°C to +70°C operation and 95% humidity tolerance, the ABB CI858K01 3BSE018135R1 performs reliably in Arctic drilling rigs or desert solar plants. ATEX Zone 2 certification ensures safety in explosive atmospheres.
Application Field
The ABB CI858K01 3BSE018135R1 excels in industries requiring high-speed fieldbus integration. In oil refineries, it masters PROFIBUS networks for tank gauging systems and safety shutoff valves. Power plants use it to synchronize turbine auxiliaries and burner management systems.
For pharmaceutical manufacturing, the module controls filling machines and cleanroom HVAC via PROFIBUS-PA segments. Water treatment facilities deploy it for pump station control and filter monitoring. The ABB CI858K01 also enables robotic assembly line coordination in automotive plants and conveyor synchronization in mining operations.
Related Products
ABB CI854A: Ethernet TCP/IP interface for AC 800M
ABB CI867: PROFINET I/O Controller module
ABB CI871: Modbus TCP communication interface
ABB SD822: PROFIBUS DP redundancy module
ABB TP830: Operator panel for AC 800M diagnostics
ABB PM803F: Safety processor for SIL 3 applications
ABB SA801F: I/O module for S800M series

ABB CI858K01 3BSE018135R1
Installation and Maintenance
Pre-installation preparation: Verify AC 800M chassis compatibility (v8.1+ firmware). Configure GSD files in Control Builder M. Terminate PROFIBUS segments with 220Ω resistors and use shielded twisted-pair cables (e.g., Belden 3079A). Ground shields at one end only (<0>
Maintenance recommendations: Monitor module health via Diagnostic Viewer in Control Builder. Replace every 10 years or if PROFIBUS error rates exceed 0.1%. Clean connectors annually with isopropyl alcohol. Update firmware using ABB System Installer. Always maintain a spare ABB CI858K01 3BSE018135R1 for critical systems.



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