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Product Description
May 27, 2026

Product Description

The 3IF621.9 is a plug‑in dual‑channel communication module developed for the B&R SYSTEM 2005 series. It integrates one galvanically isolated RS485/RS422 channel and one galvanically isolated CAN channel, supporting CANopen and standard serial communication protocols. Designed with industrial‑grade surge protection and high electromagnetic compatibility, it ensures stable and reliable data transmission in harsh industrial environments. As a core communication expansion unit, it enhances the networking capability of the main control system and enables flexible connection with various field devices.

Description

Product Description

The 3IF621.9 is a plug‑in dual‑channel communication module developed for the B&R SYSTEM 2005 series. It integrates one galvanically isolated RS485/RS422 channel and one galvanically isolated CAN channel, supporting CANopen and standard serial communication protocols. Designed with industrial‑grade surge protection and high electromagnetic compatibility, it ensures stable and reliable data transmission in harsh industrial environments. As a core communication expansion unit, it enhances the networking capability of the main control system and enables flexible connection with various field devices.

Basic Information

  • Model: 3IF621.9

  • Manufacturer: B&R Industrial Automation

  • Series: SYSTEM 2005 Communication Module

  • Type: RS485/RS422 & CAN dual‑protocol communication module

  • Installation: Plug‑in type, compatible with CPU and IF module slots of SYSTEM 2005

  • Isolation Voltage: 2.5 kV (each channel, galvanic isolation)

  • Protection Class: IP20 (after installation)

  • Weight: Approx. 0.1 kg

  • Dimensions: 127 × 76 × 25 mm

  • Certifications: CE, cULus, EAC

  • Country of Origin: Austria

Function and Positioning

This module serves as a key communication expansion component for B&R industrial control systems. It establishes high‑speed and stable data links between the main controller and field devices via RS485/RS422 serial bus and CAN bus. It supports master‑slave mode and basic protocol conversion, effectively reducing the communication load of the main CPU and improving the overall operation efficiency of the system. The reinforced isolation design eliminates interference and signal distortion caused by common‑mode voltage and electromagnetic noise. It is widely used to connect servo drives, sensors, HMIs, and remote I/O modules, and is an essential part of building distributed control systems.

Core Performance Parameters

  • Communication Interfaces: 1 × D‑Sub 9‑pin RS485/RS422 port; 1 × D‑Sub 9‑pin CAN port

  • Max Baud Rate: RS485/RS422 up to 115.2 kBaud; CAN bus up to 1 Mbps

  • CAN Compliance: CAN 2.0A/B, fully compatible with CANopen protocol

  • RS485/RS422 Mode: 2‑wire (half‑duplex) or 4‑wire (full‑duplex) selectable

  • Serial Parameters: 7/8 data bits, 1/2 stop bits, odd/even/no parity optional

  • Status Indicators: LED indicators for TX, RX, and fault alarm

  • Power Supply: 5 VDC from system backplane

  • Power Consumption: Max 1.5 W

  • Operating Temperature: 0 °C to +60 °C

  • Storage Temperature: -40 °C to +85 °C

  • Relative Humidity: 5%–95%, non‑condensing

  • Max Transmission Distance: 1,000 m (RS485/RS422 at low baud rate)

General Compatible Accessories

  • Host Modules: B&R 2005 series CPU modules (e.g., CP260) and IF modules (e.g., IF260, IF060)

  • System Backplane: B&R BP2005 series backplane

  • Connection Cables: Shielded RS485/RS422 twisted‑pair cables; dedicated CAN bus cables

  • Peripheral Devices: RS485‑compatible sensors, servo drives, HMIs; CANopen slave stations and remote I/O modules

  • Configuration Software: B&R Automation Studio for parameterization, network configuration, and diagnosis

  • Spare Parts: D‑Sub connectors, mounting fasteners, and replacement LED indicators

Applicable Equipment Fields

This communication module is suitable for diverse industrial automation scenarios requiring dual‑bus communication expansion. It is widely deployed in manufacturing production lines, CNC machine tools, and robotic systems. It also operates reliably in water treatment, pharmaceutical, and food & beverage processing industries. Additionally, it is applied in motion control equipment, HVAC systems, textile machinery, printing machinery, plastic processing machinery, and distributed remote monitoring and control systems.


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