The B&R 3IF772.9 is a communication interface module in B&R’s industrial automation system, commonly used for serial communication between PLCs and field devices or host systems.

The following outlines the core technical specifications and application overview of this model:

1. Core Technical Parameters
Interface Types:
IF1: Standard RS232 interface (9-pin D-sub connector) with a maximum baud rate of approximately 115.2 kBit/s.
IF2 & IF3: Two CAN bus interfaces (2 x 4-pin connectors) supporting transmission rates of up to 500 kBit/s.
Electrical Isolation: The module features electrical isolation, with isolation implemented between the PLC and IF1, between IF2/IF3 and the PLC, and between IF2 and IF3, ensuring strong anti-interference capability for the system.
Power Consumption:
Approximately 0.2W at 3.3V;
Approximately 1.8W at 5V;
Total power consumption is about 2.0W.
Physical Characteristics:
Slot Type: CP360 slot.
Environmental Rating: IP20.
Operating Temperature: 0°C to +60°C (storage temperature -25°C to +70°C).

2. Primary Functions and Applications
Serial Communication Bridge: Acts as a communication bridge between B&R PLCs and RS232 devices (such as legacy instruments, barcode readers).
CAN Bus Networking: Supports high-speed, reliable CAN bus communication between devices, often used in real-time control networks in industrial settings.
Application Fields: Widely used in automation control systems across industries such as chemical, petroleum, machinery, power, printing, and textiles.