B&R 3IF672.9 Interface Module – 1x RS232, 2x CAN for System 2005

Brand
Model B&R 3IF672.9

The B&R 3IF672.9 is a specialized interface module designed for the B&R System 2005 automation platform, providing essential communication expansion capabilities for industrial control systems. As a dedicated communication module, the B&R 3IF672.9 combines one RS232 serial interface with two electrically isolated CAN interfaces, enabling seamless integration of peripheral devices, sensors, and network segments into existing PLC architectures . This module is specifically engineered to be inserted into interface module slots of B&R CPU and interface units, including the CP260, IF260, and IF060 platforms .

Functionally positioned as a network gateway and serial communication bridge, the B&R 3IF672.9 facilitates data exchange between the host controller and external systems. The RS232 interface supports asynchronous serial communication with configurable data formats, while the dual CAN channels provide robust fieldbus connectivity for distributed automation networks . Each interface operates with full electrical isolation, protecting the host system from ground loops and voltage transients commonly encountered in industrial environments.

The B&R 3IF672.9 represents a field-proven solution for System 2005 installations requiring flexible communication expansion. Its plug-in architecture allows engineers to add serial and CAN connectivity without replacing the main CPU unit, preserving existing investments in B&R control hardware. The module’s network capability and support for standard CAN protocols make it suitable for multi-node automation architectures where reliable, deterministic communication is essential .

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Description

 

Technical Specifications

Parameter Name Parameter Value
Product Model B&R 3IF672.9
Manufacturer B&R Industrial Automation
Product Type Interface/Communication Module
Compatible Systems B&R System 2005 (CP260, IF260, IF060)
Interface IF1 1 x RS232 (9-pin DSUB male)
Interface IF2/IF3 2 x CAN (4-pin multipoint connector)
RS232 Max Baud Rate 115.2 kBit/s
CAN Max Baud Rate 500 kBit/s (bus length ≤ 60 m)
CAN Max Range 1000 m (at 50 kBit/s)
Electrical Isolation PLC-to-CAN: Yes; CAN-to-CAN: Yes; PLC-to-RS232: No
Power Consumption (5V) 1.8 W
Operating Temperature 0°C to +60°C
Storage Temperature -25°C to +70°C
Protection Type IP20
Certifications CE, C-UL-US, GOST-R

 

Main Features and Advantages

Dual CAN Channels with Full Isolation: The B&R 3IF672.9 features two independent CAN interfaces, each electrically isolated from the PLC bus and from each other. This isolation architecture prevents fault propagation between network segments, ensuring that a disturbance on one CAN channel cannot affect the other or the host controller. The CAN controller (82527 type) supports standard CAN protocols with external bus termination wiring options .

Flexible RS232 Serial Interface: The B&R 3IF672.9 provides a 9-pin DSUB RS232 port based on the ST16C650 UART controller with 32-byte FIFO buffers for both transmission and reception. Supporting data rates up to 115.2 kBit/s and configurable data formats (5-8 data bits, parity options, 1-2 stop bits), this interface accommodates a wide range of serial devices including programming terminals, modems, and legacy peripherals. The RS232 port can also serve as an online interface for system configuration and diagnostics .

Network-Capable CAN Architecture: The B&R 3IF672.9 supports network-capable CAN operation, allowing multiple modules and devices to communicate across a shared bus topology. With maximum transmission distances of up to 1000 meters at reduced baud rates, the module enables distributed control architectures in large industrial facilities. Status LEDs for each interface provide immediate visual feedback on data transmission activity, simplifying troubleshooting and commissioning .

Seamless System 2005 Integration: Designed specifically for B&R System 2005, the B&R 3IF672.9 inserts directly into interface module slots without requiring external adapters or additional mounting hardware. This plug-in design preserves rack space and maintains the compact footprint of the host CPU or interface unit .