ABB CI871K01-3BSE056767R1 – Communication Interface Module for AC 800M (CEX-bus)

The ABB CI871K01-3BSE056767R1 is a CEX-bus communication interface module for the AC 800M controller family. From my experience, plants typically use it to add an extra communication channel to the controller—either to tie in third‑party devices, expand a network segment, or segregate traffic for critical packages. It slides into the standard AC 800M hardware stack and is powered from the controller backplane, so there’s no extra PSU to plan for. You might notice that this kind of module is especially handy when you need more connectivity without touching the core CPU or reworking cabinet power.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• CEX-bus integration: Designed for ABB AC 800M, plugs into the controller’s CEX expansion without external power wiring.
• Industrial-grade design: Built for control cabinets in process and factory environments; typically supports 0…55°C operation.
• Diagnostics at a glance: Front LEDs for module health and communication status help technicians troubleshoot fast.
• Flexible networking: Used to expand communication capacity for linking drives, MCCs, HMIs, and third‑party systems—protocol options depend on firmware and system configuration.
• Redundancy friendly: In many cases, can be used in AC 800M redundant layouts when the overall system is engineered for it.
• Serviceable in place: Field replaceable with minimal downtime; no need to disturb the main controller wiring.

Technical Specifications

Application Fields

• Process industries using ABB 800xA / AC 800M—chemical, oil & gas, power generation, water treatment
• Factory automation cells requiring controller-to-drive or controller-to-HMI networking
• Brownfield modernization where extra communication capacity is needed without replacing CPUs
• Segmented control networks for safety or high-availability architectures

“We added the CI871K01 to pull a separate package unit onto the DCS network. It seems to be a small change, but it cut our commissioning time since we didn’t touch the main controller wiring.”

Advantages & Value

• Reliability: Industrial-grade ABB hardware with stable CEX-bus integration.
• Compatibility: Tailored for AC 800M environments; supports typical cabinet layouts and wiring practices.
• Cost control: Adds communication capacity without upgrading the main CPU, saving both hardware and engineering hours.
• Lifecycle support: Easy field replacement and firmware management help reduce downtime.

Installation & Maintenance

• Cabinet standards: Install on DIN rail within a grounded metal enclosure; keep adequate ventilation and maintain ambient typically below 55°C.
• Wiring: Follow ABB AC 800M grounding and shielding rules; use industrial Ethernet/fieldbus cables as specified by the engineered protocol.
• Safety: De-energize the cabinet before insertion/removal; observe ESD protection when handling the module.
• Routine maintenance: Check connector tightness and cable strain relief; clean dust with dry air; back up and, when applicable, update firmware during planned outages.
• Commissioning tips: Verify module recognition in the engineering tool, confirm LED status, and validate communication diagnostics before process handover.

Quality & Certifications

• CE compliant; RoHS conform
• UL listing/recognition typically available for AC 800M modules
• Manufacturer warranty applies per ABB policy; sales warranty provided for 365 days as stated above