ABB 3BDH000020R1ABB 3BDH000020R1 (CI803F Multi-Fieldbus Communication Interface Module)
ABB CI803F Multi-Protocol Fieldbus Communication Module, Order Code: 3BDH000020R1 for AC 800F Freelance DCS Function Description This plug-in rack communication module acts as a multi-fieldbus gateway for ABB AC 800F Freelance distributed control systems. It integrates PROFIBUS DP master, Modbus RTU serial, and internal Freelance Modulebus interfaces to connect controller racks to remote S800 I/O stations, third-party variable frequency drives, flow meters, analyzers, and legacy automation equipment. It supports dual redundant installation for high-availability process plants, enabling hot-swap replacement without rack power shutdown. The module translates signals between the internal rack backplane bus and external fieldbus networks, processes real-time I/O data exchange, and forwards ha
Product Description
ABB CI803F Multi-Protocol Fieldbus Communication Module, Order Code: 3BDH000020R1 for AC 800F Freelance DCS Function Description This plug-in rack communication module acts as a multi-fieldbus gateway for ABB AC 800F Freelance distributed control systems. It integrates PROFIBUS DP master, Modbus RTU serial, and internal Freelance Modulebus interfaces to connect controller racks to remote S800 I/O stations, third-party variable frequency drives, flow meters, analyzers, and legacy automation equipment. It supports dual redundant installation for high-availability process plants, enabling hot-swap replacement without rack power shutdown. The module translates signals between the internal rack backplane bus and external fieldbus networks, processes real-time I/O data exchange, and forwards ha
Technical Specifications
| Brand | ABB |
|---|---|
| Model | 3BDH000020R1 |
| Category | Industrial Automation |
| AC800F CPU Controllers | PM802F, PM803F, PM804F, PM805F |
| S800 Remote I/O Modules | DI810, DO810, AI810, AO810, AX722F |
| Other AC800F communication modules | EI803F, EI813F, CI801F, CI802F |
| PROFIBUS DP slave devices | ABB ACS variable frequency drives, pressure transmitters, flow analyzers |
| Modbus RTU third-party instruments | temperature controllers, valve positioners, motor starters |
| Width | 28 mm, Height: 127 mm, Depth: 155 mm |
| Bus Active LED Permanently Off | Damaged PROFIBUS/Modbus wiring, missing bus termination resistor, broken RS485 terminal pins, mismatched baud rate settings. |
| Intermittent Fieldbus Disconnects | Degraded PCB solder joints, excessive electromagnetic interference near cabinet, aged isolation circuit components. |
| Controller Fails to Detect CI803F | Bent gold-plated backplane edge pins, faulty rack slot power rail, firmware version mismatch with PM8xxF CPU. |
| Redundancy Sync Fault Alarm | Mismatched CI803F firmware revisions between paired redundant modules, disconnected cross-link bus cable. |
| Modbus RTU Communication Timeouts | Incorrect slave address configuration, damaged RS485 transceiver chip, unstable field device power supply. |
| EI813F (3BDH000018R1) | 10/100Mbps Ethernet communication module for TCP/IP plant network integration |
| CI801F (3BDH000015R1) | Legacy single PROFIBUS DP interface, fully backward compatible for older AC800F hardware |
| Third-party substitute | Universal PROFIBUS+Modbus multi-fieldbus interface card (electrically compatible with AC800F racks, non-ABB OEM) |
| Power | 3.2 W power |
| Speed | 100Mbps |
| Redundancy | dual redundant |
| Redundancy 2 | paired redundant |
| Origin | Germany / Original |
| Condition | New Original Factory Sealed |
| Warranty | 12 Months |
| Shipping | Global Delivery via DHL/FedEx/UPS |