ABB CI626V1 – High-Performance Redundant Communication Interface for Industrial Control Systems

If you’re running an ABB 800xA system and need rock-solid communication redundancy, the CI626V1 is one of those modules that quietly keeps everything online. It’s not flashy, but in a process environment where uptime matters—like power generation or oil & gas—it’s typically the kind of component you don’t notice until it’s missing.

Key Features

• Redundant Ethernet Communication: Maintains network continuity even if one channel fails—critical for distributed control systems where signal dropouts aren’t an option.
• Integrated into ABB 800xA Architecture: Plugs directly into the controller rack and supports seamless integration with AC 800M controllers and System 800xA engineering tools.
• Dual Port Switching Functionality: One thing I appreciate is how it acts as a managed switch, allowing daisy-chaining of devices without needing external switches in some configurations.
• Hot-Swappable Design: You can replace or install it without powering down the system—useful during planned maintenance or emergency swaps.
• Firmware Upgradable: From my experience, keeping firmware current helps avoid compatibility issues when upgrading system software versions.

Technical Specifications

Application Fields

The CI626V1 shows up most often in large-scale continuous processes. In many cases, you’ll find it in thermal power plants managing turbine control networks, or within petrochemical facilities handling safety-critical data routing between operator stations and field controllers. It also appears in water treatment systems where communication integrity affects regulatory compliance. One plant manager mentioned they deployed spares across three sites after experiencing a single-point failure on an older non-redundant model—now they treat this module as mission-critical inventory.

Advantages & Value

While it’s not the cheapest communication interface out there, its value comes from reliability under stress. Procurement teams tend to favor it because replacements are hot-swappable and widely supported in existing ABB ecosystems. Compatibility with legacy 800xA systems means you’re not forced into full cabinet overhauls. Also, having dual Ethernet channels built-in reduces external component count—fewer switches, less wiring, fewer failure points. That simplifies both initial deployment and long-term troubleshooting.

Installation & Maintenance

Install it in standard control cabinets meeting IP54 or better—just make sure there’s adequate airflow around the rack. Avoid placing near high-heat components like motor drives. Wiring is straightforward: use shielded Cat6 cables with proper grounding at one end to prevent ground loops. From my experience, labeling both Ethernet ports during commissioning saves time later. Routine maintenance mostly involves checking link status LEDs quarterly and syncing firmware during system-wide updates. No calibration needed, which makes life easier for maintenance crews.

Quality & Certifications

The module carries CE, UL, and RoHS compliance marks—standard for ABB industrial electronics. It’s designed and tested to meet IEC 61131-2 and IEC 61000-6-2 standards for electromagnetic compatibility and industrial immunity. The manufacturer typically offers a 365-day warranty, covering defects in materials and workmanship. Repairs or replacements are handled through authorized service centers, though many users keep spare units on hand given the lead time for international returns.

Our Order Placement Process and Guarantees

We keep several CI626V1 units in stock—delivery usually takes about a week. If not available immediately, it won’t take more than a month. Payment is 50% upfront, with the balance due before shipment. We ship via FedEx, UPS, or DHL depending on destination and urgency. All units are tested before dispatch and come with a full 365-day warranty.