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Product Description
May 27, 2026

Product Description

The 3IF621.9 is a plug-in communication module belonging to B&R SYSTEM 2005. It is equipped with one galvanically isolated RS485/RS422 channel and one galvanically isolated CAN channel. With excellent anti-interference performance and built-in surge protection, it maintains stable data transmission under harsh industrial conditions. As a dual-protocol expansion unit, it effectively extends the communication capacity of the main control system.

Description

Product Description

The 3IF621.9 is a plug-in communication module belonging to B&R SYSTEM 2005. It is equipped with one galvanically isolated RS485/RS422 channel and one galvanically isolated CAN channel. With excellent anti-interference performance and built-in surge protection, it maintains stable data transmission under harsh industrial conditions. As a dual-protocol expansion unit, it effectively extends the communication capacity of the main control system.

Basic Information

  • Model: 3IF621.9

  • Manufacturer: B&R Industrial Automation

  • Series: SYSTEM 2005 Communication Module

  • Type: Dual-protocol communication module

  • Installation Method: Plug into the slots of 2005 series CPU or interface modules

  • Isolation Voltage: 2.5 kV for each communication channel

  • Protection Class: IP20 when fully installed

  • Weight: Approximately 0.15 kg

  • Dimensions: 120 × 45 × 15 mm

  • Certifications: CE, cULus, EAC

Function and Positioning

This module acts as a key communication expansion component for industrial control systems. It establishes reliable data links between the main controller and field devices through RS485/RS422 and CAN bus. It supports master-slave operation and basic protocol conversion, which reduces the operating load of the main CPU and improves system efficiency. The isolation design prevents electromagnetic interference and voltage surges. It is commonly used to connect servo drives, sensors, human-machine interfaces and remote I/O modules, and serves as an important part of distributed automation control systems.

Core Performance Parameters

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

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

  • CAN Specification: Compliant with CAN 2.0A and CAN 2.0B, compatible with CANopen protocol

  • Connection Mode: RS485/RS422 supports 2-wire and 4-wire wiring

  • Serial Parameters: 7/8 data bits, 1/2 stop bits, optional parity check

  • Status Indicators: LED lights for data transmission, reception and fault warning

  • 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

  • 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

  • Matching Peripherals: RS485 sensors, servo drives, HMIs, CANopen slave devices and remote I/O units

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

  • Spare Parts: D-Sub connectors, mounting parts and indicator lamps

Applicable Equipment Fields

This communication module is widely applied in various industrial automation scenarios. It is suitable for manufacturing production lines, machine tools and robotic systems. It also applies to water treatment, pharmaceutical and food processing industries. Besides, it can be used for motion control equipment, HVAC systems, textile machinery, printing machinery, plastic processing equipment and distributed remote monitoring and control systems.


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