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Product Description
May 27, 2026

Product Description

The 3IF621.9 is a high-performance plug-in communication interface module from B&R’s SYSTEM 2005 series. Equipped with one electrically isolated RS485/RS422 port and one electrically isolated CAN port, it enables reliable, noise-immune data exchange in harsh industrial environments. Designed for direct installation in CPU or interface module slots, it serves as a flexible and compact multi-protocol connectivity solution for serial and CAN-based networks.

Description

Product Description

The 3IF621.9 is a high-performance plug-in communication interface module from B&R’s SYSTEM 2005 series. Equipped with one electrically isolated RS485/RS422 port and one electrically isolated CAN port, it enables reliable, noise-immune data exchange in harsh industrial environments. Designed for direct installation in CPU or interface module slots, it serves as a flexible and compact multi-protocol connectivity solution for serial and CAN-based networks.

Basic Information

  • Model: 3IF621.9

  • Manufacturer: B&R Industrial Automation

  • Series: SYSTEM 2005 Communication Interface Insert Module

  • Type: RS485/RS422 + CAN multi-protocol interface

  • Mounting: Plug-in slot on B&R 2005 CPU/IF modules

  • Isolation: 2.5 kV electrical isolation per channel

  • Protection Rating: IP20 (installed)

  • Weight: Approx. 0.13–0.15 kg

  • Dimensions: 120 × 45 × 15 mm

  • Certifications: CE, cULus, EAC

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

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

Function and Positioning

The 3IF621.9 functions as a dedicated multi-protocol expansion module, extending the 2005 system with two isolated communication channels. It acts as a bridge between the main controller and serial devices, CANopen slaves, or network nodes, supporting master/slave operation and protocol conversion. By offloading communication tasks from the CPU, it enhances system efficiency and reliability. It is widely used to connect drives, sensors, HMIs, and CAN-based I/O modules, playing a key role in distributed control and multi-protocol system integration.

Core Performance Parameters

  • Ports: 1 × RS485/RS422 (D-Sub 9-pin), 1 × CAN (D-Sub 9-pin)

  • Isolation: 2.5 kV DC isolation per channel

  • RS485/RS422: Baud rate up to 115.2 kBaud; 2-wire/4-wire; surge protection

  • CAN: CAN 2.0A/B; baud rate up to 1 Mbps; CANopen support; surge protection

  • Data Format: 7/8 data bits, 1/2 stop bits, none/odd/even parity

  • Signals: RS485/RS422: TXD, RXD, RTS, CTS, GND; CAN: CAN_H, CAN_L, GND

  • Indicators: 4 LEDs (RS485 TX/RX, CAN activity, fault)

  • Supply: 5 VDC from backplane

  • Power Consumption: Max. 1.5 W

  • Humidity: 5%–95%, non-condensing

General Compatible Accessories

  • Host Modules: B&R 2005 CPUs (e.g., CP260, 3IF260.60-1) and IF modules (e.g., 3IF060.6)

  • Backplanes: B&R BP2005 series system backplanes

  • Cables: D-Sub 9-pin RS485/RS422 cables, shielded twisted-pair CAN bus cables

  • Peripherals: RS485 sensors, drives, HMIs; CANopen slaves, actuators, remote I/O

  • Software: B&R Automation Studio for port setup and CANopen configuration

  • Spare Parts: D-Sub connectors, mounting screws, LED indicators

Applicable Equipment Fields

  • Manufacturing: Machine tools, CNC, robotic cells, assembly lines

  • Process Industry: Water treatment, pharmaceutical, food and beverage

  • Motion Control: Servo drives, motion controllers, positioning systems

  • Building Automation: HVAC, access control, facility monitoring

  • General Machinery: Textile, printing, plastics, metalworking equipment

  • Distributed I/O: Remote I/O, CAN sensor networks, fieldbus integration


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