ABB FI820F 3BDH000031R1 – Product Description

Overview

The ABB FI820F Fieldbus Module enables reliable serial communication between AC 800F controllers and external field devices. It supports intelligent instruments, I/O subsystems, and third-party equipment with seamless integration. Moreover, its robust design ensures stable operation in industrial environments where continuous data exchange is critical.

The module is part of ABB’s Freelance/AC 800F control system, providing a modular solution that simplifies installation and maintenance. In addition, the dual-channel architecture allows flexible configuration and redundancy, helping engineers maintain uninterrupted process control.

Technical Specifications

Model: FI820F
Part Number: 3BDH000031R1
Type: Fieldbus Communication Module (Serial)
System Compatibility: ABB AC 800F Controller (Freelance DCS)
Channels: 2 independent serial channels
Supported Protocols: Modbus RTU, Modbus ASCII, other serial protocols
Power Supply: 24 V DC from controller backplane
Dimensions: 125 × 25 × 120 mm
Weight: 0.25 kg
Mounting: DIN-rail or cabinet installation
Operating Temperature: 0 °C to +55 °C
Storage Temperature: –40 °C to +70 °C
Protection Class: IP20
Country of Origin: Germany / Switzerland

FAQ

Q1: What protocols does the FI820F support?
It supports Modbus RTU, Modbus ASCII, and other standard serial communication protocols.

Q2: How is the module powered?
It receives 24 V DC directly from the AC 800F controller backplane.

Q3: Can the module provide redundant communication channels?
Yes. The dual-channel design allows redundancy to maintain continuous data exchange.

Q4: What environments are suitable for this module?
It operates reliably in industrial automation, chemical plants, power generation, and similar process industries.

Q5: How is the FI820F installed?
It can be mounted on DIN rails or inside control cabinets for flexible integration.