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Product Description
May 27, 2026

Product Description

The 3IF621.9 is a compact plug-in communication module for B&R SYSTEM 2005 series. It integrates one galvanically isolated RS485/RS422 channel and one galvanically isolated CAN channel. Featuring strong anti-interference capability and industrial surge protection, it delivers stable data transmission in complex industrial sites. This dual-protocol module is designed to expand communication functions for the main control system and connect various field devices flexibly.

Description

Product Description

The 3IF621.9 is a compact plug-in communication module for B&R SYSTEM 2005 series. It integrates one galvanically isolated RS485/RS422 channel and one galvanically isolated CAN channel. Featuring strong anti-interference capability and industrial surge protection, it delivers stable data transmission in complex industrial sites. This dual-protocol module is designed to expand communication functions for the main control system and connect various field devices flexibly.

Basic Information

  • Model: 3IF621.9

  • Manufacturer: B&R Industrial Automation

  • Series: SYSTEM 2005 Communication Module

  • Type: RS485/RS422 and CAN dual-protocol communication module

  • Mounting: Plug-in installation on 2005 series CPU or interface modules

  • Electrical Isolation: 2.5 kV isolation for each channel

  • Protection Rating: IP20 after installation

  • Weight: Approximately 0.15 kg

  • Dimensions: 120 × 45 × 15 mm

  • Certifications: CE, cULus, EAC

Function and Positioning

This module serves as a professional communication expansion unit for the automation control system. It builds data links between the main controller and on-site equipment via RS485/RS422 serial bus and CAN bus. It supports master-slave working mode and basic protocol conversion, which reduces the communication load of the main CPU and improves overall system operating efficiency. With reliable isolation design, it effectively avoids interference and signal distortion. It is widely used for connecting servo drives, sensors, human-machine interfaces and remote I/O units, and is an essential part for building distributed control systems.

Core Performance Parameters

  • Communication Interfaces: 1 D-Sub 9-pin RS485/RS422 port, 1 D-Sub 9-pin CAN port

  • Maximum Baud Rate: 115.2 kBaud for RS485/RS422, 1 Mbps for CAN bus

  • CAN Standard: Compliant with CAN 2.0A and CAN 2.0B, supports CANopen protocol

  • Transmission Mode: RS485/RS422 supports 2-wire and 4-wire connection

  • Data Configuration: 7 or 8 data bits, 1 or 2 stop bits, optional parity check

  • Status Indicators: LED indicators for signal receiving, transmitting and fault alarm

  • Power Supply: 5 VDC supplied by system backplane

  • Power Consumption: Maximum 1.5 W

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

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

  • Relative Humidity: 5% to 95%, non-condensing

General Compatible Accessories

  • Matching Host Modules: B&R 2005 series CPU modules and 3IF060.6 interface modules

  • System Backplane: B&R BP2005 series backplane

  • Connection Cables: Shielded RS485/RS422 cables and dedicated CAN bus cables

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

  • Configuration Software: B&R Automation Studio for parameter setting and network configuration

  • Spare Parts: D-Sub connectors, mounting fasteners and indicator lights

Applicable Equipment Fields

This communication module is applicable to various industrial automation scenarios requiring dual-bus communication expansion. It is widely used in manufacturing production lines, machine tools and robotic equipment. It also works stably in water treatment, pharmaceutical and food processing industries. In addition, it is adopted for motion control equipment, HVAC systems, textile, printing and plastic machinery, as well as distributed remote monitoring and control systems.


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