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B&R X20CM0985
Product Series: B&R X20 I/O System (X20CM Series)
Product Introduction: The X20CM0985 is a single-channel CANopen communication module for the B&R X20 distributed I/O system. It enables the X20 I/O stations to communicate over a CANopen network (DS301, DS302, DS305 compliant), supporting device profile and SDO/PDO data exchange with CANopen masters.
Detailed content
Technical Specifications:
- Communication Protocol: CANopen (CiA DS301, DS302, DS305, DS406)
- CAN Standard: CAN 2.0B (ISO 11898-1)
- Number of Channels: 1 × CAN channel
- Baud Rate: 10 kbps to 1 Mbps (configurable)
- Connector: SUB-D 9-pin (male)
- Supply Voltage: 24V DC via X20 bus connector
- Power Consumption: Approx. 1.5 W
- Isolation: Galvanic isolation between CAN bus and X20 bus (500 V AC)
- Protection Rating: IP20
Functional Features:
- Full CANopen device profile support (DS406)
- SDO (Service Data Object) server and client
- PDO (Process Data Object) mapping: up to 4 TPDO + 4 RPDO
- Emergency message (EMCY) support (CiA 301)
- Node guarding / Heartbeat support
- LED indicators: Power (green), CAN Bus (green), Error (red)
- Diagnostic counters: TX error, RX error, bus-off counter
Structural Features:
- Form Factor: 45 mm width, X20 standard
- Mounting: DIN rail 35 mm / direct screw
- Connector: X20 bus (top) + SUB-D 9 (front)
- Housing Material: Polycarbonate (PC), UL94 V-0
- Dimensions (W × H × D): 45 mm × 90 mm × 75 mm (approx.)
- Weight: Approx. 125 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:
- Mobile hydraulics (CANopen J1939 bridge)
- Agricultural machinery
- Construction equipment
- Marine automation
- Building automation (HVAC controllers)
- Medical equipment
Installation Requirements:
- Mount on DIN rail adjacent to X20 CPU/I/O modules
- Connect CAN_H and CAN_L using shielded twisted-pair cable
- Terminate both ends of CAN bus with 120 Ω resistor
- Maximum bus length: 40 m at 1 Mbps; 1000 m at 10 kbps
- Ensure common ground reference between nodes (optional, depends on isolation)
Usage Precautions:
- Always terminate CAN bus at both physical ends with 120 Ω
- Do not exceed 1 Mbps baud rate
- Use shielded twisted-pair cable, ground shield at one end
- Do not connect CAN_H and CAN_L to power supply
Advantages & Highlights:
- Full CiA 406 device profile — plug-and-play with any CANopen master
- Galvanic isolation protects X20 bus from CAN bus transients
- Wide baud rate range (10 kbps–1 Mbps) covers all CANopen applications
- Compact X20 form factor — no separate gateway required
