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Product Description

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Product Description
May 27, 2026

Product Description

The 3IF621.976 is a high-performance multi-protocol communication interface insert module from B&R’s SYSTEM 2005 series. It provides one electrically isolated RS485/RS422 port and one CAN port, designed for direct installation in CPU or interface module slots. The module enables reliable, noise-resistant communication with serial devices and CANopen networks, making it ideal for complex industrial environments requiring flexible and stable data exchange.

Description

Product Description

The 3IF621.976 is a high-performance multi-protocol communication interface insert module from B&R’s SYSTEM 2005 series. It provides one electrically isolated RS485/RS422 port and one CAN port, designed for direct installation in CPU or interface module slots. The module enables reliable, noise-resistant communication with serial devices and CANopen networks, making it ideal for complex industrial environments requiring flexible and stable data exchange.

Basic Information

  • Model: 3IF621.976

  • 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: Electrical isolation for both channels

  • Protection Rating: IP20 (installed state)

  • Weight: Approx. 0.15 kg

  • Dimensions: 120 × 45 × 15 mm

  • Certifications: CE, cULus, EAC

Function and Positioning

As a dedicated multi-protocol expansion insert, the 3IF621.976 extends the 2005 system with two isolated communication channels: one for RS485/RS422 serial communication and one for CAN bus networking. It acts as a bridge between the main controller and serial devices, CANopen slaves, or network nodes, supporting master/slave modes and protocol conversion. By offloading communication tasks from the CPU, it enhances system efficiency and reliability. It is widely used for connecting drives, sensors, HMIs, and CAN-based devices, playing a key role in distributed control and networked automation.

Core Performance Parameters

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

  • Isolation: 2.5 kV electrical isolation per channel

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

  • CAN: CAN 2.0A/B; baud rate up to 1 Mbps; supports CANopen

  • Data Format: RS485/RS422: 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 (TX/RX for RS485, CAN activity, fault)

  • Supply Voltage: 5 VDC (from backplane)

  • Power Consumption: Max. 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 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, CAN bus cables (shielded twisted pair)

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

  • Software: B&R Automation Studio (protocol configuration, CANopen parameterization)

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

Applicable Equipment Fields

This module is ideal for industrial systems requiring multi-protocol communication:

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

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

  • Motion Control: Drives, servo systems, motion controllers, positioning systems

  • Building Automation: HVAC, access control, facility monitoring, energy management

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

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


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