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The ABB UFC765AE102 3BHE003604R0102 is a high-performance communication module designed for the AC 800M programmable automation controller (PAC) platform, serving as a critical interface between the central processing unit and field-level devices or higher-level supervisory systems. Functionally equivalent to the well-known CI854A, this module provides dual-channel communication capabilities—featuring one Profibus DP master/slave port and two independent 10/100 Mbps Ethernet interfaces—enabling flexible integration into hybrid control architectures. The UFC765AE102 3BHE003604R0102 is engineered for reliability in demanding industrial environments, supporting both standard automation protocols and ABB’s proprietary ACN (ABB Communication Network) for seamless data exchange within System 800xA.
As part of ABB’s modular I/O and communication ecosystem, the UFC765AE102 3BHE003604R0102 allows AC 800M controllers to connect to legacy Profibus networks (e.g., drives, remote I/O like ET200M, or valve terminals) while simultaneously communicating with modern Ethernet-based systems such as HMIs, historians, or OPC servers. It supports hot-swap installation, automatic baud rate detection (up to 12 Mbps on Profibus), and redundant operation when paired with a second module in a synchronized AC 800M redundant CPU setup. This makes the UFC765AE102 3BHE003604R0102 indispensable for brownfield modernization projects where phased migration from older fieldbuses to Ethernet-based control is required without full system replacement.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | UFC765AE102 3BHE003604R0102 |
| Manufacturer | ABB |
| Product Type | AC 800M Communication Module (Fieldbus & Ethernet Interface) |
| Communication Interfaces | 1× Profibus DP (RS-485, 9-pin D-sub), 2× 10/100 Mbps Ethernet (RJ45) |
| Protocols Supported | Profibus DP (Master/Slave), Modbus TCP, ABB ACN, FTP, HTTP |
| Profibus Data Rate | 9.6 kbps to 12 Mbps (auto-baud or fixed) |
| Max Profibus Slaves | 126 (standard configuration) |
| Ethernet Features | Full-duplex, auto-negotiation, IP configurable via Control Builder M |
| Power Consumption | Max 3.5 W @ 5 VDC (from backplane) |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Mounting | DIN rail or AC 800M chassis (S800-compatible baseplate) |
| Certifications | CE, UL, CSA, ATEX (for hazardous area variants) |
Main Features and Advantages
Dual-network flexibility for hybrid control systems:
The UFC765AE102 3BHE003604R0102 bridges the gap between legacy field devices and modern IT infrastructure. Its integrated Profibus DP port connects directly to hundreds of existing ABB and third-party devices—such as ACS800 drives or Siemens I/O—while its dual Ethernet ports support concurrent Modbus TCP for SCADA and ACN for System 800xA asset integration. This eliminates the need for external protocol gateways, reducing cost and failure points.
Robust redundancy and diagnostics:
When used in redundant AC 800M configurations, the UFC765AE102 3BHE003604R0102 supports synchronized communication states, ensuring zero data loss during controller switchover. Built-in LED indicators provide real-time status for link activity, Profibus errors, and module health. Advanced diagnostics—including bus statistics, slave response times, and CRC error counters—are accessible via System 800xA for predictive maintenance.
Seamless engineering and configuration:
Configured entirely within Control Builder M, the UFC765AE102 3BHE003604R0102 requires no external software tools. GSD files for Profibus slaves are imported directly, and Ethernet parameters (IP, subnet, gateway) are managed through the same project environment as logic code. Firmware updates are delivered over the backplane, minimizing downtime.
Long-term availability and backward compatibility:
As a direct functional replacement for the CI854A, the UFC765AE102 3BHE003604R0102 ensures continuity for plants with installed AC 800M bases. ABB maintains strict hardware and firmware compatibility, allowing drop-in upgrades without re-engineering. This future-proofs investments in ABB automation platforms across decades-long plant lifecycles.
Application Field
The ABB UFC765AE102 3BHE003604R0102 is widely deployed in industries where mixed-generation control systems coexist. In thermal power plants, it links AC 800M turbine governors to legacy boiler soot blowers and damper actuators via Profibus, while reporting emissions data over Ethernet to environmental compliance servers. Within water treatment facilities, the UFC765AE102 3BHE003604R0102 integrates variable-speed pumps (Profibus-connected) with cloud-based SCADA using Modbus TCP, enabling remote reservoir level optimization.
In oil & gas terminals, it enables safe communication between redundant AC 800M safety controllers and Profibus-based emergency shutdown valves, meeting SIL requirements through deterministic polling and fail-safe diagnostics. Even in automotive manufacturing, where robotic cells use mixed fieldbuses, the UFC765AE102 3BHE003604R0102 consolidates data from multiple assembly lines into a single production dashboard. Across all these applications, the UFC765AE102 3BHE003604R0102 acts as a universal translator—ensuring that no device, old or new, is left out of the digital transformation.
Related Products
CI854A: Original ABB communication module; UFC765AE102 3BHE003604R0102 is a pin-compatible successor
PM864AK01: AC 800M CPU commonly paired with UFC765AE102 for control applications
TB840A: Termination base for redundant communication module setups
AC 800M Rail & Power Supply: Required mounting and power infrastructure
GSD Files Library: ABB-provided device descriptions for Profibus slave configuration
Control Builder M: Engineering tool for configuring UFC765AE102 3BHE003604R0102
CI874: Optical communication module for high-speed AC 800M-to-AC800PEC links
S800 I/O Modules: Analog/digital I/O compatible with the same AC 800M chassis
Installation and Maintenance
Pre-installation preparation: Before installing the ABB UFC765AE102 3BHE003604R0102, confirm compatibility with the AC 800M backplane firmware version (minimum CBM 5.1 recommended). Ensure the Profibus cable uses shielded twisted pair with proper termination resistors (typically 220 Ω at both ends). Assign static IP addresses or verify DHCP scope for Ethernet interfaces to avoid conflicts. Mount the module on a grounded S800 baseplate with adjacent slots free for heat dissipation. Perform ESD precautions during handling.
Maintenance recommendations: Monitor Profibus diagnostic LEDs monthly for blinking error patterns indicating bus faults. Use System 800xA’s communication diagnostics view to track slave response delays or retries on the UFC765AE102 3BHE003604R0102. Back up module configuration as part of the overall AC 800M project archive. In redundant systems, test failover by simulating a primary module fault to validate seamless transition. Replace modules showing persistent CRC errors or overheating signs. Always keep spare UFC765AE102 3BHE003604R0102 units pre-configured for rapid swap-out during outages.
