CI858K01 3BSE018135R1 ABB AC 800M DriveBus Interface Kit Fast Ship

Overview

The CI858K01 (Article Number 3BSE018135R1) is an AC 800M communication interface kit designed for direct DriveBus protocol integration. Driven by dedicated communication coprocessing hardware, this module enables high-speed, deterministic data exchange between ABB AC 800M controllers and ACS800, ACS880, or DCS800 variable speed drives without loading the main CPU application execution loop.

Each CI858K01 assembly provides a functional communication subsystem comprising the CI858 processing unit and its dedicated TP858 baseplate. By utilizing high-speed optical fiber links, the interface eliminates ground potential differences and EMI/RFI noise pickup across long-distance drive network topologies in demanding industrial control environments.

System Architecture & CEX-Bus Interfacing

• Plugs directly onto the standard AC 800M CEX-Bus rail extension utilizing the TP858 baseplate.
• Establishes galvanic isolation between the controller backplane and field drive cabinets using fiber optic cabling.
• Supports cyclic dataset updates for critical drive parameter access, including speed reference, torque limits, status words, and actual feedback values.
• Enables multi-drive dataset broadcasting for synchronized multi-motor motion applications.

Target Equipment & Application Scenarios

• Metal Rolling Mills: High-speed speed/torque synchronization across main stand drives and tension reels via ACS800/ACS880 drive lines.
• Paper & Converting Lines: Sectional drive control requiring tight time-deterministic reference updates to prevent web breaks.
• Mine Hoist & Conveyor Systems: Load-sharing architectures running multi-drive DC drive systems powered by DCS800 controllers.
• Extrusion & Cable Manufacturing: Continuous coordinated line-speed adjustments via centralized System 800xA control logic.

Diagnostic & Signal Integrity Capabilities

• Front-panel LED status indicators report Module Operational State (RUN/FAIL), CEX-Bus Communication Activity, and Optical Link Status.
• Real-time dynamic monitoring detects optical power degradation, transmitter fatigue, or snapped fiber channels before communication breaks completely.
• Provides drive communication status supervision flags directly to the AC 800M hardware tree for programmatic fault handling in IEC 61131-3 logic.
• Supports online hot-swap capabilities, allowing module replacement while adjacent CEX-Bus communication interfaces remain active.

Global PLC Spare HUB's Insight

When implementing the CI858K01 interface in high-power drive networks, optical signal attenuation is often the primary root cause of intermittent dataset packet drops. While the standard optical transmitters accommodate up to 15-meter plastic fiber optic cable (POF) runs, long-distance cabinet runs exceeding 15 meters require Hard Clad Silica (HCS) fibers to maintain link budget margin.

During a paper mill commissioning project, an engineering team experienced recurring DriveBus timeout alarms on an active CI858K01 module. Oscilloscope analysis revealed that excessive bending radii on the POF line entering the TP858 baseplate caused optical signal clipping under panel vibration. Replacing the damaged POF patch cord with factory-terminated HCS fiber and maintaining a minimum bend radius of 35 mm restored optical signal stability, eliminating packet retry delays and securing 100% deterministic drive sync cycles.

Global Logistics & Warranty Policy

• Warranty Terms: Covered by a comprehensive 12-month factory-grade replacement warranty starting from the date of shipment.
• Worldwide Dispatch: Express door-to-door global transit handled via FedEx, UPS, and DHL Express.
• Order Handling: Dispatch processed within 24 to 48 hours following payment confirmation from our central warehouse facility.

Selection & Engineering FAQ

What physical components are delivered with the CI858K01 package?

The kit contains one CI858 communication interface module and one matching TP858 baseplate assembly required for mounting on the AC 800M CEX-Bus rail.

Can a single CI858K01 interface communicate with both ACS800 and ACS880 drives on the same optical channel?

Yes, provided all connected drives are configured with the correct DriveBus node address assignment and matching communication baud rate settings within their parameter sets.

How do field engineers diagnose optical transmitter failure versus a damaged fiber line on a CI858 channel?

Inspect the optical link LED on the module front. If off, measure the light output at the fiber terminal using an optical power meter. An optical power reading below -20 dBm indicates bent/damaged fiber, while zero light output directly at the CI858 TX port points to a failed internal optical transmitter module.

Is hot-swapping supported for the CI858 module during plant operation?

Yes, the CI858 module can be unlatched from its TP858 baseplate while powered without interrupting execution on the AC 800M CPU or affecting other modules on the CEX-Bus, though control over the connected drive ring will temporarily freeze.

What is the maximum number of CI858K01 interfaces that can be attached to a single AC 800M CPU cluster?

An AC 800M controller supports up to 12 CEX-Bus communication interface units total. The exact count of CI858 modules depends on overall CEX-Bus power budget consumption and application memory limitations.

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