ABB CI867A 3BSE092688R1 Communication Interface Module – High-Performance Redundant Ethernet for AC 800M Controllers

If you’re running an AC 800M automation system and need reliable, fault-tolerant communication between controllers and engineering stations, the CI867A typically fits the bill. From my experience supporting process plants in power and water treatment, this module tends to be the go-to when redundancy and uptime matter. It’s not just about connecting devices—it’s about keeping them talking even during network hiccups.

Key Features

• Dual-port redundant Ethernet – One thing I appreciate is how it supports automatic failover. If one link drops, the other takes over within milliseconds—no manual intervention needed.
• Supports TCP/IP and UDP protocols – Seems to handle both control data and diagnostics traffic efficiently, which helps reduce congestion on shared networks.
• Hot-swappable design – In most cases, you can replace or install it without shutting down the controller. That’s a real time-saver during maintenance windows.
• Integrated with ABB Control Builder M – Configuration feels seamless if you’re already in the ABB ecosystem. No extra middleware or drivers required.
• LED status indicators – You might notice that the front panel lights make troubleshooting easier—link activity, speed, and faults are all visible at a glance.

Technical Specifications

Application Fields

This module shows up most often in industries where continuous operation is non-negotiable. Think thermal power plants using ABB’s Symphony Plus, or large wastewater facilities managing remote pumping stations. It also pops up in oil & gas terminal automation setups where dual-network rings are used to isolate critical control traffic. In many cases, engineers choose it specifically because it integrates cleanly with existing HART multiplexers and OPC servers without requiring protocol gateways.

Advantages & Value

Procurement teams tend to favor this module not just for its reliability, but because spare inventory is relatively low-risk—since it’s widely used across ABB installations globally. Compatibility with older CI854 and CI807 modules means upgrades don’t require full cabinet redesigns. And while it’s not the cheapest option out there, the reduction in downtime usually offsets the initial cost within a single unplanned outage event. Technical support from ABB is responsive, and firmware updates are backward-compatible more often than not.

Installation & Maintenance

Mounting is straightforward as long as your control cabinet follows IEC 60297 standards. Make sure there’s at least 25 mm of clearance on each side for airflow—the module doesn’t have a fan, so convection cooling matters. Wiring-wise, use shielded Cat 6 cables and ground the drain wire at one end only to avoid ground loops. For maintenance, we recommend checking link status monthly and logging any repeated renegotiations. Firmware updates should be done during planned stops, and calibration isn’t required since it’s a digital interface—but do verify IP settings after any network reconfiguration.

Quality & Certifications

It carries CE, UL, and RoHS certifications, and meets electromagnetic compatibility standards per IEC 61000-6-2 and IEC 61000-6-4. The build quality feels solid—metal shielding around the connectors helps prevent EMI issues in high-noise environments. Factory warranty covers 365 days, which aligns well with typical plant maintenance cycles. From what I’ve seen in the field, failure rates are low, especially when installed away from heat-generating components like motor drives.

Ordering & Delivery Notes

Units in stock typically ship within one week. If not immediately available, lead time won’t exceed four weeks. We ask for 50% advance payment to confirm the order, with the balance due before shipment. All units are tested prior to dispatch and shipped via FedEx, UPS, or DHL—your choice depending on urgency and location.