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Product Description
May 27, 2026

Product Description

The 3EX450.66-1 is a high-performance PROFIBUS DP Master Bus Controller from the B&R 2005 system, designed to enable seamless integration of the 2005 series into PROFIBUS DP networksB& R Industrial Automation. It features a galvanically isolated RS485 interface for robust industrial communication, supporting data exchange at up to 12 Mbps. With an RS232 configuration port and extensive diagnostic LEDs, it ensures reliable, high-speed communication between the main controller and distributed PROFIBUS DP slaves in complex automation architecturesB& R Industrial Automation.

Description

Product Description

The 3EX450.66-1 is a high-performance PROFIBUS DP Master Bus Controller from the B&R 2005 system, designed to enable seamless integration of the 2005 series into PROFIBUS DP networksB& R Industrial Automation. It features a galvanically isolated RS485 interface for robust industrial communication, supporting data exchange at up to 12 Mbps. With an RS232 configuration port and extensive diagnostic LEDs, it ensures reliable, high-speed communication between the main controller and distributed PROFIBUS DP slaves in complex automation architecturesB& R Industrial Automation.

Basic Information

  • Model: 3EX450.66-1

  • Manufacturer: B&R Industrial Automation

  • Series: 2005 System Bus Controller

  • Type: PROFIBUS DP Master, Galvanically Isolated

  • Communication Interfaces:

    • PROFIBUS DP: RS485, 9-pin D-Sub (female), galvanically isolated

    • Configuration: RS232, 9-pin D-Sub (male), up to 9.6 kbpsB& R Industrial Automation

  • Mounting: Plug-in slot on B&R 2005 system backplane

  • Housing: Industrial plastic, UL94V-0 flame retardant

  • Protection Rating: IP20

  • Weight: Approx. 0.55 kg

  • Dimensions: 115 × 70 × 170 mm

  • Certifications: CE, UKCA, cULus, EAC

Function and Positioning

As a dedicated PROFIBUS DP master module in the B&R 2005 system, the 3EX450.66-1 acts as a communication bridge between the 2005 CPU and up to 125 PROFIBUS DP slave devicesB& R Industrial Automation. It handles high-speed, deterministic data exchange with a maximum of 3.5 KB input and 3.5 KB output dataB& R Industrial Automation. Galvanic isolation protects against electrical noise and voltage transients, while LED indicators for power, bus activity, and diagnostics simplify troubleshooting. It enables seamless integration of 2005 I/O into PROFIBUS-based automation systems, enhancing system scalability and reliability.

Core Performance Parameters

  • Protocol: PROFIBUS DP (Master)

  • Slave Capacity: Up to 125 slavesB& R Industrial Automation

  • Transmission Rate: Max. 12 Mbps (RS485)B& R Industrial Automation

  • Data Capacity: 3.5 KB input / 3.5 KB outputB& R Industrial Automation

  • Isolation: Galvanic isolation (PROFIBUS DP interface)

  • Configuration Port: RS232 (9.6 kbps max)B& R Industrial Automation

  • Status LEDs: Power, RUN, BUS, TX/RX, Diagnostics

  • Power Consumption: 1.1 W @ 24 VDCB& R Industrial Automation

  • Operating Temperature: 0 °C to +60 °C

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

  • Humidity: 5%–95% (non-condensing)

General Compatible Accessories

  • Backplane: B&R 2005 system backplane (BP2005 series)

  • Power Supply: B&R PS456/PS465 (24 VDC system power)

  • Cables: Shielded PROFIBUS DP cables (RS485), RS232 configuration cables

  • Termination: PROFIBUS DP termination resistors

  • Software: B&R FieldBus Configurator (1A0550.01) for network setup

  • Replacement Parts: Interface connectors, LED indicators, mounting clips

Applicable Equipment Fields

The 3EX450.66-1 is ideal for industrial automation requiring PROFIBUS DP communication:

  • Manufacturing: Automotive assembly lines, machine tools, packaging machinery (distributed I/O)

  • Process Industry: Chemical, pharmaceutical, water treatment (sensor/actuator networking)

  • Building Automation: Large HVAC, facility management (centralized control)

  • Energy: Power plants, renewable energy, grid monitoring (data acquisition)

  • Logistics: Automated warehouses, sorting systems, conveyors (high-speed control)

  • General Machinery: Textile, printing, plastic machinery (PROFIBUS system expansion)


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