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B&R 3IF761.9 (2005 Series Communication Module)

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B&R 3IF761.9 (2005 Series Communication Module)
May 27, 2026

B&R 3IF761.9 (2005 Series Communication Module)

The B&R 3IF761.9 is a high‑performance aPCI communication module from the 2005 series, designed for B&R 2005 system PCC (Programmable Computer Controller). It integrates one electrically isolated Profibus DP master interface and one RS232 serial interface, enabling high‑speed fieldbus communication and serial data exchange in industrial automation. With a maximum transmission rate of 12 MBit/s and support for up to 3.5 KB input/output data, it ensures reliable and efficient data transmission. The compact industrial housing and electrical isolation design provide excellent anti‑interference capability, making it suitable for harsh industrial environments. As a core communication component of the B&R 2005 series, it realizes seamless connection between the control system and Profibus DP slaves and serial devices.

Description

B&R 3IF761.9 (2005 Series Communication Module)

Product Introduction

The B&R 3IF761.9 is a high‑performance aPCI communication module from the 2005 series, designed for B&R 2005 system PCC (Programmable Computer Controller). It integrates one electrically isolated Profibus DP master interface and one RS232 serial interface, enabling high‑speed fieldbus communication and serial data exchange in industrial automation. With a maximum transmission rate of 12 MBit/s and support for up to 3.5 KB input/output data, it ensures reliable and efficient data transmission. The compact industrial housing and electrical isolation design provide excellent anti‑interference capability, making it suitable for harsh industrial environments. As a core communication component of the B&R 2005 series, it realizes seamless connection between the control system and Profibus DP slaves and serial devices.

Basic Information

  • Model: 3IF761.9

  • Brand: B&R (Bernecker + Rainer, ABB Group)

  • Series: 2005 Series (PCC System)

  • Product Type: aPCI Communication Interface Module

  • Communication Interfaces: 1 × Profibus DP (master, electrical isolated), 1 × RS232

  • Transmission Rate: Profibus DP up to 12 MBit/s; RS232 up to 115.2 kbps

  • Data Capacity: Max. 3.5 KB input data, max. 3.5 KB output data

  • Connection Type: aPCI bus (plug‑in)

  • Power Consumption: Typical 1.8 W

  • Operating Voltage: 24 VDC (±10%)

  • Housing: Industrial plastic, 2005 series standard form factor

  • Protection Class: IP20

  • Operating Temperature: -25°C to +70°C

  • Certifications: CE, UL/cULus, EAC

  • Origin: Imported (Austria)

  • Features: Electrical isolation, high‑speed Profibus DP, RS232 serial port, plug‑and‑play

Function and Positioning

The 3IF761.9 functions as a dedicated communication hub for B&R 2005 PCC systems, providing Profibus DP master communication and RS232 serial communication functions. It acts as a Profibus DP master to connect multiple slave devices such as I/O modules, drives, and sensors, realizing high‑speed and reliable fieldbus data exchange. The RS232 interface supports point‑to‑point communication with serial devices such as printers, scanners, and third‑party instruments. The electrical isolation design effectively suppresses common‑mode interference and ensures stable communication in complex electromagnetic environments. Positioned as a high‑speed and stable communication expansion module, it is ideal for 2005 series control systems requiring Profibus DP and serial communication capabilities.

Core Performance Parameters

  • Bus Interface: aPCI (B&R 2005 system bus)

  • Profibus DP Interface: Master mode, electrical isolation, max. 12 MBit/s

  • Profibus Data Size: Input ≤3.5 KB, Output ≤3.5 KB

  • RS232 Interface: D‑sub 9‑pin, standard serial communication, max. 115.2 kbps

  • Isolation Voltage: 500 VAC (Profibus DP and system bus)

  • EMC Compliance: EN 61000‑6‑2, EN 61000‑6‑4

  • Power Supply: 24 VDC ±10%, 1.8 W typical

  • Durability: ≥50,000 plug‑in cycles

  • Communication Protocol: Profibus DP V0/V1, RS232 (ASCII, Modbus RTU optional)

  • Compatibility: B&R 2005 series PCC (3CP153.9, 3CP154.9, etc.)

General Compatible Accessories

  • B&R 2005 series PCC CPU modules (3CP153.9, 3CP154.9, 3CP156.9)

  • B&R 2005 series backplanes and aPCI expansion racks

  • Profibus DP slave modules (B&R X20 series, third‑party Profibus devices)

  • RS232 serial devices (printers, scanners, barcode readers, serial instruments)

  • Standard Profibus DP cables and connectors (D‑sub 9‑pin)

  • 24 VDC industrial power supplies (0PS105.1, 0PS205.1)

  • B&R Automation Studio (configuration, programming, communication diagnostics)

  • EMC filters and surge protectors for Profibus and serial circuits

  • Labeling strips and cable markers for interface identification

Applicable Equipment Fields

  • Industrial Control Cabinets: Core communication for B&R 2005 PCC systems

  • Machine Building: Packaging machinery, textile machines, printing presses, general machinery

  • Process Automation: Water treatment, chemical, pharmaceutical, food & beverage plants

  • Motion Control: Servo drive systems, positioning equipment, conveyor control

  • Automotive: Assembly lines, production testing equipment, auxiliary systems

  • System Integration: Panel building, retrofit projects, multi‑device networking

  • Industrial IoT: Edge control nodes, data acquisition and transmission units

  • Logistics: Warehouse automation, sorting systems, material handling equipment


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