B&R X20BT9400
Product Series: B&R X20 I/O System (X20BT Series)
Product Introduction: The X20BT9400 is a POWERLINK bus coupling terminal module that connects B&R X20 I/O modules to a POWERLINK real-time Ethernet network. It enables deterministic, cycle-synchronous communication between the X20 distributed I/O and the POWERLINK master controller with sub-microsecond synchronization accuracy.
Detailed content
Technical Specifications:
- Communication Protocol: POWERLINK (IEEE 1588, IEC 61158)
- Network Standard: Ethernet 100BASE-TX (IEEE 802.3u)
- Port Type: 1 × RJ45 (100 Mbps)
- Topology: Line / Tree / Star (with switch)
- Synchronization Accuracy: < 1 μs (IEEE 1588 v2)
- Cycle Time: 200 μs to 65.535 ms (configurable)
- Number of I/O Nodes Supported: Up to 240 nodes per network segment
- Supply Voltage: 24V DC via X20 bus connector
- Power Consumption: Approx. 2.0 W
- Protection Rating: IP20
Functional Features:
- Full POWERLINK V1/V2 protocol support
- On-board network diagnostics (link status, error counters)
- LED indicators: Power (green), Link (green), Error (red)
- Auto-negotiation support (10/100 Mbps)
- Integrated ESD protection on Ethernet port (IEC 61000-4-2, ±8 kV contact)
- Support for mapped and unmapped I/O data
Structural Features:
- Form Factor: 45 mm width, X20 standard module
- Mounting: DIN rail 35 mm / direct screw
- Connector: X20 system bus (top) + RJ45 (front)
- Housing Material: Polycarbonate (PC), UL94 V-0
- Dimensions (W × H × D): 45 mm × 90 mm × 75 mm (approx.)
- Weight: Approx. 130 g
Operating Conditions:
- Operating Temperature: -25°C to +70°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% (non-condensing)
Applicable Industries:
- High-speed packaging machines
- Printing presses
- CNC machine tool controls
- Robotics (multi-axis synchronized motion)
- Semiconductor manufacturing equipment
- Wind turbine pitch control
Installation Requirements:
- Mount on DIN rail adjacent to X20 I/O modules
- Connect RJ45 to POWERLINK network using shielded CAT5e/CAT6 cable
- Maximum cable length: 100 m per segment (without repeater)
- Terminate network ends with 120 Ω resistor (if line topology)
- Ensure POWERLINK master is configured for this node
Usage Precautions:
- Use only shielded twisted-pair Ethernet cable
- Do not exceed 100 m segment length without repeater/switch
- Do not mix POWERLINK with standard Ethernet traffic on same segment
- Ground the shield at one end only to avoid ground loops
Advantages & Highlights:
- Sub-microsecond synchronization for motion control applications
- Deterministic real-time communication with guaranteed cycle times
- Seamless integration with B&R X20 I/O ecosystem
- Up to 240 nodes per segment — excellent scalability











