3IF771.9 Network and Fieldbus Module – Detailed Product Description
June 02, 2026

3IF771.9 Network and Fieldbus Module – Detailed Product Description

The 3IF771.9 is a high-performance aPCI (advanced Peripheral Component Interconnect) network and fieldbus communication module manufactured by B&R (Bernecker + Rainer), designed for the B&R System 2005 automation platform. It serves as a dedicated CAN (Controller Area Network) bus interface module, enabling reliable, real-time data communication between System 2005 controllers and CAN-compatible field devices such as sensors, actuators, drives, and remote I/O stations. Optimized for industrial networking and distributed control, the module integrates electrical isolation, on-board object buffering, and robust EMC protection, ensuring stable operation in harsh factory environments and seamless integration into CAN-based automation systems.

Description

3IF771.9 Network and Fieldbus Module – Detailed Product Description

1. Product Overview

The 3IF771.9 is a high-performance aPCI (advanced Peripheral Component Interconnect) network and fieldbus communication module manufactured by B&R (Bernecker + Rainer), designed for the B&R System 2005 automation platform. It serves as a dedicated CAN (Controller Area Network) bus interface module, enabling reliable, real-time data communication between System 2005 controllers and CAN-compatible field devices such as sensors, actuators, drives, and remote I/O stations. Optimized for industrial networking and distributed control, the module integrates electrical isolation, on-board object buffering, and robust EMC protection, ensuring stable operation in harsh factory environments and seamless integration into CAN-based automation systems.

2. Core Specifications

2.1 Communication Interface

  • Protocol: CAN 2.0A/B (CAN bus, industrial fieldbus standard)

  • Transmission Rate: Up to 500 kbit/s (supports standard CAN baud rates: 10 kbit/s to 500 kbit/s)

  • Data Buffering: Dedicated object buffers for both transmit and receive directions, reducing CPU load and ensuring smooth data exchange

  • Isolation: Full electrical isolation between the CAN network and the System 2005 backplane, protecting against voltage spikes, ground loops, and EMI/RFI interference

  • Network Topology: Supports multi-node CAN networks (linear, star, or tree topologies) with up to 110 nodes per segment; compliant with ISO 11898 standard

2.2 Mechanical & Environmental

  • Form Factor: aPCI plug-in module (single slot, compatible with System 2005 backplane)

  • Protection Class: IP20 (protected against solid objects >12 mm; for indoor industrial use)

  • Operating Temperature: 0°C to +55°C (standard); extended range -25°C to +60°C available for harsh conditions

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

  • Power Supply: 5 VDC from System 2005 backplane (no external power required)

  • Weight: Approx. 0.3 kg (0.66 lbs)

  • Dimensions: Standard System 2005 module size (fits 19-inch rack-mount or standalone controllers)

2.3 Compliance & Certification

  • Standards: CE (European Union), UL (USA), CSA (Canada), RoHS (Restriction of Hazardous Substances)

  • Industrial Ratings: Compliant with IEC 61000-6-2 (industrial EMC immunity) and IEC 61000-6-4 (industrial EMC emission)

3. Key Features

  1. Dedicated CAN Bus Interface: Provides a high-speed CAN 2.0A/B port for connecting to CANopen, DeviceNet, or raw CAN devices, supporting both cyclic process data and acyclic parameter exchange.

  2. On-Board Transmit/Receive Buffers: Integrated object buffers minimize controller intervention, enhancing communication efficiency and reducing latency in real-time applications.

  3. Electrical Isolation: Isolates the CAN network from the controller backplane, eliminating ground loop issues and safeguarding sensitive electronics from industrial noise.

  4. Robust Industrial Design: Constructed with high-quality components and a coated PCB for resistance to dust, moisture, and vibration; supports 24/7 continuous operation in demanding environments.

  5. Seamless System Integration: Optimized for B&R System 2005 with plug-and-play installation and hot-swap capability for maintenance without system shutdown; fully compatible with B&R Automation Studio software for configuration, diagnostics, and firmware updates.

  6. Diagnostic LEDs: Integrated status indicators for power, CAN communication, and module faults, enabling quick on-site troubleshooting and network monitoring.

  7. Network Expansion Support: Facilitates flexible CAN network expansion, allowing connection of multiple slave devices and supporting scalable distributed control architectures.

4. Application Scenarios

  • Factory Automation: Assembly lines, packaging machinery, and material handling systems (connecting PLCs, HMIs, servo drives, and remote I/O modules via CAN bus).

  • Motion Control: Robotics, CNC machines, and servo drive systems (real-time communication between controllers and drives for precise motion coordination).

  • Process Control: Pharmaceutical, food & beverage, and chemical industries (monitoring and controlling sensors, valves, and pumps in distributed process networks).

  • Automotive Manufacturing: Production lines, vehicle assembly, and test systems (connecting CAN-based ECUs, sensors, and actuators).

  • Building Automation: HVAC systems, elevator control, and energy management (integrating distributed I/O and control devices over CAN networks).

5. Compatibility & Ordering

  • Compatible Systems: B&R System 2005 controllers, backplanes, and I/O systems.

  • Part Number: 3IF771.9 (original B&R part; no direct substitutes).

  • Warranty: 12 months (original B&R warranty); extended warranty available upon request.

6. Conclusion

The 3IF771.9 is a reliable, cost-effective CAN bus communication module tailored for B&R System 2005. With its high-speed transmission, on-board buffering, electrical isolation, and robust design, it delivers stable, efficient connectivity for CAN-based industrial automation systems, making it ideal for distributed control, motion control, and process automation applications.


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