B&R X20CP1484
Product Series: B&R X20 I/O System (X20CP Series)
Product Introduction: The X20CP1484 is a POWERLINK communication processor module that serves as the dedicated interface between a B&R X20 CPU (e.g., X20CP0484, X20CP3484) and a POWERLINK real-time Ethernet network. It offloads all POWERLINK protocol processing from the CPU, enabling deterministic cyclic data exchange with nanosecond-level synchronization.
Detailed content
Technical Specifications:
- Communication Protocol: POWERLINK (IEEE 1588v2, IEC 61158)
- Network Standard: Ethernet 100BASE-TX (IEEE 802.3u)
- Number of Ports: 1 × RJ45 (100 Mbps)
- Synchronization Accuracy: < 1 μs (IEEE 1588 Precision Time Protocol)
- Cycle Time: 200 μs to 65.535 ms (configurable)
- Max. I/O Data per Cycle: 1420 bytes input + 1420 bytes output
- Supply Voltage: 24V DC via X20 bus connector (from CPU module)
- Power Consumption: Approx. 3.0 W
- Isolation: Galvanic isolation between CPU and POWERLINK network (500 V AC)
- Protection Rating: IP20
Functional Features:
- Full POWERLINK V1 and V2 protocol stack implemented in hardware
- Hardware-based IEEE 1588v2 timestamp — no CPU load for synchronization
- Mapped and unmapped I/O data support
- On-board web server for configuration and diagnostics
- LED indicators: Power (green), Link (green), Data (yellow), Error (red)
- Integrated ESD protection: ±8 kV contact (IEC 61000-4-2)
- Network diagnostics: frame counters, error statistics, latency monitoring
- Support for cross-traffic (TCP/UDP) on POWERLINK network
Structural Features:
- Form Factor: 45 mm width, X20 standard module
- Mounting: DIN rail 35 mm / direct screw (mounted adjacent to X20 CPU)
- 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. 140 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:
- Multi-axis motion control (CNC, robotics)
- High-speed packaging and bottling lines
- Printing and converting machines
- Semiconductor wafer handling
- Power generation (turbine control)
- Railway signaling and traction control
Installation Requirements:
- Must be mounted in the same X20 rack as the X20 CPU module
- Connect RJ45 to POWERLINK network using shielded CAT5e/CAT6 cable
- Maximum segment length: 100 m (100 Mbps)
- Terminate line ends with 120 Ω resistor
- Configure node address and cycle time in B&R Automation Studio
Usage Precautions:
- This module requires an X20 CPU — it cannot operate standalone
- Use only shielded twisted-pair cable for POWERLINK connection
- Do not connect POWERLINK port to standard Ethernet switch port (VLAN separation required for mixed traffic)
- Ensure POWERLINK master acknowledges this node before startup
Advantages & Highlights:
- Hardware-based POWERLINK stack — zero CPU load for real-time communication
- IEEE 1588v2 synchronization < 1 μs — industry-leading precision
- Galvanic isolation protects CPU from network transients
- On-board web server enables remote diagnostics without engineering software












