ABB CI857 3BSE018144R1 Genuine OEM AC 800M Comm Board

Description

2. Product Core Brief

• Model: CI857 / 3BSE018144R1
• Brand: ABB
• Series: AC 800M Communications
• Core Function: High-speed INSUM communication interface
• Product Type: Communication Interface Module
• Key Specs: INSUM protocol | 10 Mbit/s | Hot-swap capable
• Condition: New Original / New Surplus (Never refurbished)
• Inventory Status: Legacy AC 800M comm board; buffer stock recommended to prevent stock-outs given lead time variability and lifecycle status

3. Key Technical Specifications

4. Product Introduction & Supply Chain Strategy

The ABB CI857 (3BSE018144R1) is a communication interface module designed for the AC 800M automation platform, enabling INSUM protocol connectivity on the system’s CEX-bus with a dedicated master role. It supports up to six CI857 modules per controller and facilitates high-speed 10 Mbit/s communication for distributed industrial I/O and switchgear integration.

Strategically, this is a critical communication spare with low turnover but high impact on uptime. The module’s lifecycle is classic/legacy, and lead time variability is common. Maintaining 1–2 units as buffer stock protects against stock-outs, smooths reorder points, and avoids emergency procurement at premium costs. New Surplus hardware eliminates latent failure risks found in refurbished units, preserving your Total Cost of Ownership.

5. Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

1. Perform full lock-out/tag-out on the AC 800M system rack and isolate all power sources.
2. Confirm the backplane CEX-bus is de-energized using an appropriate meter.
3. Wear a grounded ESD wrist strap; communication boards are sensitive to static.
4. Photograph module orientation and all network/cable connections.
5. Document INSUM address and configuration settings relevant to the controller.

Stage 2: Removal

1. De-energize the CEX-bus and remove any retaining clips or rack guides.
2. Extract CI857 carefully in a straight motion to prevent backplane pin damage.
3. Inspect the backplane connector and rack slot for contamination or bent pins.

Stage 3: Installation (Clone & Seat)

1. Clean backplane contact interfaces; align the CI857 module to the CEX-bus slot.
2. Seat the module with even pressure until fully engaged.
3. Secure any clips or mountings per ABB torque specifications.
4. Reconnect RJ-45 communication links exactly as documented previously.

Stage 4: Power-On & Testing

1. Re-apply CEX-bus power and monitor status LEDs on CI857 for RUN/ERROR indications.
2. Validate communications over the INSUM network with test packets or diagnostics.
3. Confirm integration with host controller and any connected MCUs or INSUM gateways.
4. Document performance metrics and verify closed-loop operations where applicable.

6. Firmware/Software Versions & Upgrade Notes

• CI857 hardware does not contain user-upgradeable firmware; its behavior is determined by the AC 800M controller’s INSUM communication library.
• Ensure the host controller’s firmware is compatible with INSUM network loads and CI857 protocol extensions.
• Do not change controller firmware during replacement unless explicitly required and verified for compatibility.
• Back up network settings, node addressing, and any CEX-bus parameters to avoid configuration mismatches after swap.
• Review INSUM library version compatibility if upgrading controllers to prevent communication errors or timeouts.

7. Frequently Asked Questions (FAQ)

Q1: Is this part truly new?
Yes. This is a Brand New Surplus ABB CI857 (3BSE018144R1). It is not used or refurbished. Pricing reflects disciplined inventory acquisition versus full OEM list prices, giving you reliable stock without elevated risk.

Q2: What systems use this communication module?
CI857 is designed for ABB AC 800M controller systems, enabling INSUM protocol communication for distributed industrial I/O and switchgear integration.

Q3: Why should I carry buffer stock?
Legacy communications boards often have long lead times and limited OEM stock. Having 1–2 units of buffer stock avoids stock-outs, stabilizes reorder cycles, and reduces emergency procurement costs.

Q4: Can this be hot-swapped?
Yes. The CI857 supports hot-swap capability, but always confirm CEX-bus isolation and follow lock-out/tag-out procedures before service to protect backplane integrity.

Q5: Does replacing this affect controller configuration?
The hardware swap does not change controller logic, but INSUM network addresses and configuration parameters must be replicated exactly to ensure seamless communication.